The spring constant is 133 N/m and time period is 0.62 seconds.
(a) The spring stretches until the magnitude of its upward force on the
block equals the magnitude of the downward force of gravity: ky=mg,
where y= 0.096m is the elongation of the spring at equilibrium,
k = the spring constant, and m=1.3kg is the mass of the block.
Thus,
k=mg/y= (1.3)(9.8m/s ^2)/(0.096m)=133 N/m.
(b) The period is given by, T = 1/f = [tex]\frac{2\pi }{\alpha }[/tex] = [tex]2\pi \sqrt{\frac{m}{k} }[/tex]
where, m = mass and k = spring constant
Given , m = 1.3 kg and k = 133N/m
putting these values in above equation we get,
T = 0.62 seconds
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After landing on Mars an astronaut performs simple experiment by dropping rock: A quick calculation using the drop height and the time of fall yields a value of 3.73 m/s? for the rock's acceleration_ Find the mass of Mars, given that its radius Rm = 3.39x 106 m (Ans: 6.43 x 1023 kg] (Continued from the previous question) What is the acceleration due to gravity at a distance r = 2RM from the center of Mars? [Ans: 0.933 m/s?]
The acceleration due to gravity at a distance r = 2RM from the center of Mars will be 0.933 m/s².
What is acceleration?
In mechanics, acceleration is the rate of change of an object's velocity with respect to time. Acceleration is a vector quantity (as long as it has magnitude and direction). The direction of an object's acceleration is given by the direction of the net force acting on that object. As described by Newton's second law, the magnitude of an object's acceleration is the combined effect of two causes. ) The mass of this object is inversely proportional to the mass of the object, depending on the material the object was made from.
The SI unit of acceleration is meters per second square.
Therefore, The acceleration due to gravity at a distance r = 2RM from the center of Mars will be 0.933 m/s².
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n a double slit experiment light of wavelength 585.0 nm is used, the separation of the slits is 0.100 mm and the viewing screen is 21.0 cm from the slits. on this screen, what is the separation between the fifth maximum and seventh minimum from the central maximum?
The separation between the fifth maximum and seventh minimum from the central maximum is 2.457mm
Seperation between 5th and 7th minima
=2X(wavelength)x(Distance of screen) / (slit seperation)
=(2x 585x10^-9 x21x10^-2 )/ 0.1x10^-3 =2.457mm
The double-slit experiment shows that light and matter can exhibit properties of both classically defined waves and particles. Furthermore, it demonstrates the fundamental stochastic nature of quantum mechanical phenomena. This kind of experiment was first performed by Thomas Young in 1802 to demonstrate the wave behavior of visible light [1]. At the time, light was thought to consist of waves or particles. With the advent of modern physics about 100 years later, it was recognized that light can indeed exhibit behavior characteristic of both waves and particles. We have demonstrated that it exhibits the same behavior as extended to molecules . Thomas Young's light experiments were part of classical physics long before the concept of quantum mechanics and wave-particle duality was developed. He believes that this proves that the wave theory of light is correct, and his experiment is sometimes called Young's experiment or Young's slit.
This experiment belongs to the general class of "double-path" experiments, in which a wave is split into two separate waves (a wave usually consists of many photons and is better known as a wavefront). .The wave properties of a single photon ), which later combine into a single wave. Changes in the path length of both waves lead to phase shifts that create interference patterns. Another version is a Mach-Zehnder interferometer that splits the beam with a beam splitter.
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what is the maximum speed vmax of the block during this motion? express your answer in terms of some of all of the variables: k , m , and a .
When the spring reaches its equilibrium length, or the point at which all the energy stored in the spring is transferred to kinetic energy, the block moves at its fastest speed. Since the object is at rest when it starts, Ki = 0. Due to a lack of friction, Wnc is equal to 0.
What is the mass's greatest oscillational speed?A mass oscillating about its equilibrium position can move at a maximum displacement of 0.2 meters and at a maximum speed of 1.2 meters per second.
What is the maximum speed rule?Currently, the top speed limit for automobiles on expressways is 120 kph, and the top speed limit for cars on national highways is 100 kph.
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PLEASE HELP!! 25 POINTS!!
Please draw or show a picture of a free body diagram of a
car moving
Answer: Attached JPG
Explanation:
FBD shows the forces acting on an object. If you where given no values (mass, acceleration, μ, etc...) then simply label the various vectors. Vectors show direction and magnitude as in how big the force is.
If you where given the mass you can find the weight and normal force (not inclined plane) by multiplying mass times gravity. Fg=Fn because its not moving in the y dimension (up and down).
If given acceleration and told no friction then the force applied would be mass times acceleration.
If given friction force you have to set up the equation m*a=Fa-Ff and then plug in variables.
It gets more complicated when you are given μ. To find these force then you have to set up the equation Ff=μFn. Plug in variables to find Ff, then set up previously listed equation.
Hope this helps
a wire has a diameter of 0.852cm and is 8.49m long. when connected to a 15.5v voltage source, the wire carries a 75.3a current. what is the resistivity, in ohm meters, of the wire?
The resistivity, in ohm meters, of the wire is 0.001228 Ωm.
Resistivity is a measure of a material's resistance to electric current. It is the inverse of electrical conductivity and is usually expressed in ohm-meters (Ω⋅m). Resistivity is an intrinsic property of a material, meaning that it does not depend on the size or shape of the material.
Resistivity is typically measured using a four-point probe method. This involves attaching four electrodes to the material, and then measuring the voltage between the two inner electrodes while passing a known current through them. The resistivity can then be calculated using Ohm's law.
Resistivity = (Voltage x Length) / (Current x Area)
= (15.5 x 8.49) / (75.3 x (π x (0.852/2)^2))
= 0.001228 Ωm
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public television station kqed in san francisco broadcasts a sinusoidal radio signal at a power of 777 kw. assume that the wave spreads out uniformly into a hemisphere above the ground.at a home 4.50 km away from the antenna, what average pressure does this wave exert on a totally reflecting surface?
The average pressure does this wave exert on a totally reflecting surface is 5.13*10^-12 pa.
As a result of the momentum transfer between the electromagnetic field and the object, the idea of radiation pressure is created. Since electromagnetic waves carry transport momentum, this force can be observed.
The mechanical pressure that is applied to any surface as a result of the electromagnetic field and the object exchanging momentum is known as radiation pressure. When photons hit the object's surface in this instance, momentum is transferred.
The composition of the surface and the level of light intensity employed determine the radiation pressure on any given surface.
Given,
power=777Kw
r=4.50 Km
According to the condition given, we get
I = Pav/ A
I = 777000 w/2π(4000m)^2
I = 7.7 *10^-3 w/m²
Average pressure is given by
PaV = 2I/c
Pav = 2* 7.7 x 10^-3/3*10^8
Pav = 5.13*10^-12 pa.
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a -kg bullet is fired with a velocity of 108.6 m/s toward a 5.99-kg block moving at a speed of 0.280 m/s in the same direction. the bullet emerges with a speed of 20.7 m/s and with a small piece of the block with a mass of 0.0016 kg sticking to it. what is the kinetic energy lost in the collision?
The speed of the bullet is 721m/s as it leaves
The speed of the bullet is 937m/s as it enters block 1 .
From the question, we have
+x direction is to the right (so all velocities are positive valued).
(a) Applying momentum conservation,
(0.0035kg)ν=(1.8035kg)(1.4m/s)
⇒ν=721m/s .
(b) We use momentum conservation to connect the moment the bullet initially contacts the first block to the moment it has passed through it (using the speed v from section (a)).
(0.0035kg)V =(1.20kg)(0.630m/s)+(0.00350kg)(721m/s)
V =937m/s .
Linear Momentum:
The product of an object's mass, m, and its velocity, v, is the vector quantity known as linear momentum. It is represented by the letter "p," which is also used to denote momentum. Please be aware that the body's momentum always points in the same direction as its vector of velocity. Because it is a conserved quantity, a system's overall momentum is always constant. kg/s is the unit of linear momentum.
Complete question:
a 3.50g bullet is fired horizontally at two blocks at rest on a frictionless table. The bullet passes through block 1 (mass 1.20kg ) and embeds itself in block 2 (mass 1.80kg ). The blocks end up with speeds ν 1=0.630m/s and ν2 =1.40m/s (Fig.9-58b). Neglecting the material removed from block 1 by the bullet, find the speed of the bullet as it (a) leaves and (b) enters block 1 .
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hen a boat sails from salt water to fresh water, the boat will float A) lower in the water. B) higher in the water. C) at the same water level.
A boat that transitions from salt to fresh water will float at a lower level in the water. due to the fact that fresh water is less buoyant than salt water. The boat will therefore flow less in fresh water.
The force that makes things float is known as buoyant force. It is the force applied to a solid object that is partially or completely submerged in a liquid. The pressure differences occurring on the opposing surfaces of an object submerged in a static fluid are what cause buoyancy. Additionally called the buoyant force. It is pretty inevitable that an object's bottom will always be deeper in a fluid than its top, which is why there is a buoyant force.
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a volleyball hit into the air has an nitial speed of 10. meters per second. which vector best represents the angle above the horizintal tha the bal should be hit to remain in the air for the greatest amount of time
The greatest amount of time is going to be achieved when the volleyball is hit with its maximum velocity and that's his maximum vertical component.
In the area has an initial speed of 10 m/s, vector pressure represents the angle above the horizontal, that the ball should be hit to remain there for the greatest amount of time. So the greatest amount of time is going to be achieved when the volleyball is hit with its maximum velocity. And that's his maximum vertical component. And that's going to happen only when the angle is 90° because the entire velocity is on the vertical component. So, this is the vertical component of the velocity that determines the time of flight.When a body is launched in projectile motion making an angle with the horizontal, its initial velocity has both horizontal and vertical components.The vertical component of the body describes the influence of velocity in displacing the component vertically. The vertical component is sine of the angle.To know more projectile motion visit:
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a person stands on a scale in an elevator. his apparent weight will be the greatest when the elevator a person stands on a scale in an elevator. his apparent weight will be the greatest when the elevator is moving upward at constant velocity. is moving downward at constant velocity. is standing still. is accelerating downward. is accelerating upward.
His apparent weight will be the greatest when the elevator accelerating upward.
What is accelaration?acceleration is the rate of to the change of the velocity of an object with respect by time.
When a person stand in an elevator moving upwards, he feels heavier because the elevator's floor presses harder on his feet, and the scale will show a higher reading than when the elevator is at rest.
According to Newton's second law
R = mg + ma
where;
R is the reading of the scale = apparent weight of the person
mg is the normal weight of the person
ma is the upward force acting on the person
Therefore, his apparent weight will be the greatest when the elevator is accelerating upward
(c) is accelerating upward
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Label the structures of the hip. lliac crest lliac fossa Pubis Iliac crest Ischium Obturator membrane llium Obturator foramen
The femur, which is the thighbone, and the pelvis, which consists of the ilium, ischium, and pubis. The femoral head creates the ball of the hip joint, and the acetabulum creates the socket.
What tissues connect to the iliac crest?
Hip flexors, internal and external abdominal oblique muscles, erector spinae muscles, latissimus dorsi, transversus abdominis, and tensor fasciae latae are just a few of the significant abdominal and core muscles that are linked to the iliac crest.
What are the pelvis' four components?
The coccyx and sacrum make up the pelvic spine. The innominate bones are the pubic bone, ischial bone, and iliac bone that connect on either side.
Is the iliac crest the hip bone?
The largest of the three bones that make up the hip bone or bony pelvis, the ilium, has a conspicuous section called the iliac crest. A person will occasionally rest their hands on the curved section of the pelvis that creates the wing-like feature of the hip and lies close to the skin.
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a metallic laboratory spring is typically 5.00 cm long and 0.150 cm in diameter and has 50 coils. for related problemsolving tips and strategies, you may want to view a video tutor solution of calculating self-induced emf. part a if you connect such a spring in an electric circuit, how much self-inductance must you include for it if you model it as an ideal solenoid?
Self Inductance:
1.11 x 10^-7 H is the solenoid inductance
What is Self Inductance of a coil?The characteristic of a current-carrying coil that opposes or resists a change in the current running through it is called self-inductance. This mostly happens because of the self-induced emf that the coil produces. In layman's words, we can also state that self-inductance is a phenomenon where a voltage is induced in a wire that carries current.
Calculation:Given;
The spring's dimensions are
length L= 5 cm (0.05 m),
diameter = d 0.15 cm
radius = r = 0.075 cm (0.00075 m).
There are 50 coils in the spring.
N = 50;
The spring's area is determined using the formulas below;
A = π [tex]r^{2}[/tex]
A = 3.14 × (0.00075)^2
A = [tex]1.77[/tex] × [tex]10^-6[/tex] [tex]m^2[/tex]
The inductance of a solenoid is;
L = [tex]\frac{N^2 A}{l}[/tex]
L = [tex]1.11[/tex]×[tex]10^-7[/tex] H
1.11 x 10^-7 H is the solenoid inductance that needs to be accounted for in the model.
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Identify the highlighted vessel. The highlighted artery has two terminal branches. Name one of them. Identify the highlighted vessel.
The highlighted artery has two terminal branches are Basilic vein.
The basilic vein travels from the palm of your hand up your arm, passing by the side of your pinky and ulna (a long bone that runs from your elbow to your finger). Due to its proximity to the skin's surface, the basilic vein is regarded as superficial. The inner arm frequently exhibits it. The dorsal venous network's ulnar region is where the basilic vein first appears. The vena mediana cubiti connects to it at the anterior surface just below the elbow as it ascends the basilic vein of the forearm, which goes up the posterior surface of the ulnar side of the forearm.
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he noisy estabrook stifling team recently adopted a law to reduce the allowed sound level from leaf blowers from the current level of 96 db to 68 db. part description answer save status a. what is the ratio of the new allowed intensity to the previously allowed intensity?
The ratio of the newly allowed intensity to the previously allowed intensity is 3.1623 x 10⁻³.
Banks says a leaf blower makes 64 to 78 decibels at 50 feet. To the operator's ear, the noise is 95-115 decibels. According to Dangerous Decibels, a public-private partnership aimed at reducing hearing loss, typical speech is around 60 decibels, washing machines 75 decibels, and chainsaws 115 decibels.
Performance that fits your needs. Setting the motor to a low speed makes less noise. According to the American Green Zone Alliance, an organization dedicated to zero-emission landscaping, the average fan produces about 65 dB of noise. Compare this to the average noise level of a traditional gas backpack blower.
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a car is moving along a road at 32 m/s. suddenly the driver sees that the road ends and there is a cliff 65 meters ahead. he slams on the brakes and decelerates at the rate of 8 m/s^2. will he drive off the cliff?
The car will not drive off the cliff.
Motion is the phenomenon in which an object changes its position. Motion is represented in terms of displacement, distance, velocity, acceleration, speed, and time.
We know that [tex]v^{2} - u^{2} = 2aS[/tex] where,
v= final velocity
u = initial velocity
a = acceleration/deacceleration
S = distance
Given , v = 32m/s , u =0 and a = 8 m/s^2
Putting these values in above equation we get,
S = 64m
Given cliff is at a distance of 65m.
So the car will not fall off the cliff.
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the spool has a mass of 100 kg and radius of gyration about its mass center of . determine the smallest coefficient of static friction that will prevent slipping on the rail at a. what is the angular acceleration of the spool?
Minimizing static friction coefficient to prevent slipping if the turntable had experienced radius of gyration continuous angular acceleration when it was at rest.
What is meant by gyration radius?In general, the radius of gyration is the distance from a body's center of mass at which the entire mass could be concentrated without changing the body's moment of rotational inertia about the axis through the center of mass.
What does Formula K for radius of gyration mean?Equation for Radius of Gyration
The following is the formula for moment inertia in terms of gyroscope radius: I is the moment of inertia and m is the body's mass, and I = mk2 (1). The radius of gyration is given as follows as a result. k = I m ( 2 ) ( 2 ).
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an empty, isolated parallel plate capacitor has stored energy of 8.09 j. then a material with a dielectric constant of 4.80 is inserted between the plates. how much energy is now stored in the capacitor.
After a material with a dielectric constant of 4.80 is inserted between the plates, energy remains same and it be 8.09 joule now stored in the capacitor.
What is law of conservation of energy?Energy cannot be created or destroyed, says the law of conservation of energy. However, it has the ability to change its form.
The total energy of an isolated system is constant when all sources of energy are taken into account.
As the energy of 8.09 joule stored in a capacitor, which is isolated, when a material with a dielectric constant of 4.80 is inserted between the plates, energy remains same due to conservation of energy and it be 8.09 joule now stored in the capacitor.
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rank the reservoirs of freshwater on earth by volume, with that containing the highest volume on top.
The freshwater reservoirs on earth are ranked by volume, with the one with the biggest volume at the top is-
1. ice caps; 2. groundwater; 3. lakes; 4. rivers.
Explain the freshwater reservoirs on earth?The atmosphere, the earth's surface, and the earth's interior are the three main locations where water can be kept.
Oceans, glacier ice, underground, lakes, soil humidity, living organisms, atmospheric atmosphere, and rivers are examples of these reservoirs, which are used to store water.There is an estimated 1.386 billion km3 (330 million cubic miles) of water on Earth, of which 97.5% is salt water and 2.5% is fresh water. Only 0.3% of a fresh water is liquid at the surface.More than 70% of freshwater is utilized for agriculture in the majority of the world's areas. An estimated 50% increase in agricultural output and a 15% increase in water flows are needed by 2050 to feed a globe of 9 billion people.Thus, the freshwater reservoirs on earth are ranked by volume, with the one with the biggest volume at the top is-
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PLEASE HELP! 30 POINTS!!!
Please draw or show a car moving at a constant speed
I drew the first picture myself, and the second one is the image
Saturn’s rings look bright because __________
light from the Sun reflects off the material inthe rings
the material in the rings is hot and createsits own light
light from Saturn reflects off the material inthe rings
The reason why Saturn's rings appear bright is because sunlight reflects off the ring material.
Because the ice particles in Saturn's rings scatter and reflect sunlight, the rings appear dazzling. Astronomers have long known that when Earth is directly between Saturn and the sun, Saturn's rings reflect sunlight with the greatest intensity. When light reflects off flat, polished surfaces (like a mirror or a pond) in a specific direction, it might appear exceptionally bright. The rings' actual nature becomes clear upon closer inspection. A mix of factors, such as gravity and collisions between the ring particles themselves, account for the rings' appearance of uniformity. Although the planets appear to be perfectly spherical, their spin causes them all to slightly bulge around the equator. The Saturnian ring system is the largest ring system in the Solar System. They are made up of innumerable tiny particles that orbit Saturn and range in size from micrometres to meters. With the exception of a small amount of stony material, the ring particles are virtually exclusively comprised of water ice.
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young's double-slit experiment is performed with 575-nm light and a distance of 2.00 m between the slits and the screen. the tenth interference minimum is observed 7.10 mm from the central maximum. determine the spacing of the slits (in mm).
According to the young's double-slit experiment, the spacing of the slits is 1.54 mm.
Young's double-slit experiment uses two coherent light sources placed a short distance apart.
Usually only a few orders of magnitude larger than the wavelength of light is used. Young's double slit experiment helped to understand the wave theory of light.Wavelength of the light used = λ = 575 nm
Distance between the slits and the screen = D = 2.00 m
The minimum tenth interference = 7.10 mm
As we know the tenth minimum interference can be calculated by the formula: (19/2) (λD/d)
here 'd' is the spacing between the slits.
7.10 * [tex]10^{-3}[/tex] = (19/2) (575 * [tex]10^{-9}[/tex] * 2/d)
7.10 = (9.5) (1154 * [tex]10^{-6}[/tex] / d)
7.10 = 10963 * [tex]10^{-6}[/tex] /d
d = 1544.0 * [tex]10^{-6}[/tex] m
d = 1.54 [tex]10^{-3}[/tex] m
d = 1.54 mm
The spacing of the slits is 1.54 mm.
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a solution has a poh of 4.75 at 50∘c. what is the ph of the solution given that kw=2.35×10−14 at this temperature?
In other words, pH equals the negative log of the KW value given at 2.35 times 10 to the negative 14 -30H given at 4.75°C temprature. We also obtain 888.
What is pH?The pH scale determines how acidic or basic water is. The range is 0 to 14, with 7 representing neutrality. Acidity is indicated by pH values below 7, whereas baseness is shown by pH values above 7. In reality, pH is a measurement of the proportion of free hydrogen and hydroxyl ions in water.
Why is pH so crucial?A solution's pH is a significant indicator of its chemical composition. The pH can affect how readily available nutrients are, how biological processes work, how bacteria behave, and how chemicals behave.
If Kw = [H⁺][OH⁻] = 2.5 x 10⁻¹⁴, then
log₁₀ [H⁺] + log₁₀ [OH⁻] = log₁₀ (2.5 x 10⁻¹⁴), or
-log₁₀ [H⁺] - log₁₀ [OH⁻] = -log₁₀ (2.5 x 10⁻¹⁴), which is
pH + pOH = -log₁₀ (2.5 x 10⁻¹⁴) = 13.60
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find the area of the surface. the helicoid (or spiral ramp) with vector equation r(u, v) = u cos(v) i u sin(v) j v k, 0 ≤ u ≤ 1, 0 ≤ v ≤ 3.
The area of Surface = [tex]{ }^3 k \pi\left[\frac{\ln (1+\sqrt{2})+\sqrt{2}}{x}\right]=3 \pi[\ln (\sqrt{2}+1)+\sqrt{2}] \\[/tex]
What is a vector equation ?A vector equation is a linear combination of vectors with possibly unknown coefficients.
What is vector ?Vectors are defined as quantities that have both magnitude and direction. Examples include weight, acceleration, force, displacement, and velocity. Scalar quantities are those that merely have magnitude and no direction.
According to the given information
r(u, v) =[tex]\langle u \cos v, u \sin v[/tex], [tex]v\rangle \quad 0 \leqslant u \leqslant 1[/tex]
[tex]0 \leqslant v \leqslant 6 \pi \\[/tex]
[tex]& \gamma_u=\langle\cos v, \sin v, 0\rangle \\[/tex]
[tex]& r_v=\langle-u \sin v, u \cos v, 1\rangle \\[/tex]
[tex]& r_u \times r_v[/tex] = [tex]\left|\begin{array}{ccc}\hat{i}_i & \hat{j} & \hat{k} \\\cos v & \sin v & 0 \\-u \sin v & u \cos v & 1\end{array}\right| \\[/tex]
= [tex]\hat{\imath}[\sin v-0]-\hat{\jmath}[\cos v]+\hat{k}\left[u \cos ^2 v+u \sin ^2 v\right] \\[/tex]
[tex]& =\langle\sin v,-\cos v, u\rangle \\& \left\|\gamma_u \times \gamma_v\right\|=\sqrt{\sin ^2 v+\cos ^2 v+u^2}=\sqrt{1+u^2} \\[/tex]
[tex]& A_{r e}=\iint\left\|r_u \times r_v\right\| d A \\& =\int_0^1 \int_0^{6 \pi} \sqrt{1+u^2} d v d u \quad=\int_0^1 \sqrt{1+u^2} d u[v]_0^{6 \pi} \\& =6 \pi \int_0^1 \sqrt{1+u^2} d u=\frac{6 \pi}{2^2}\left[\frac{1}{2}\left(x \sqrt{1+u^2}+\ln \left(\sqrt{1+u^2}+1\right)\right]_0^1\right. \\& ={ }^3 k \pi\left[\frac{\ln (1+\sqrt{2})+\sqrt{2}}{x}\right]=3 \pi[\ln (\sqrt{2}+1)+\sqrt{2}] \\[/tex]
So
The area of Surface = [tex]{ }^3 k \pi\left[\frac{\ln (1+\sqrt{2})+\sqrt{2}}{x}\right]=3 \pi[\ln (\sqrt{2}+1)+\sqrt{2}] \\[/tex]
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what is the sequence of energy transformations from the moment the ball is dropped to the moment the board is bent to its maximum extent and the ball is at rest? (ignore any losses to thermal energy.)
The sequence of energy transformations from the moment the ball is dropped to the moment the board is bent to its maximum extent and the ball is at rest is as follows:
1. The ball has potential energy (gravitational potential energy) from being held above the board.
2. As the ball is dropped, it gains kinetic energy as it accelerates to the ground.
3. When the ball hits the board, the kinetic energy is converted into elastic potential energy as the board bends.
4. As the board continues to bend, the elastic potential energy is converted into thermal energy.
5. Finally, when the board reaches its maximum extent, the ball is at rest and its kinetic energy has been completely converted into thermal energy.
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a dragster starts from rest and accelerates down a track. each tire has a radius of 0.320 m and rolls without slipping. at a distance of 384 m, the angular speed of the wheels is 288 rad/s. determine (a) the linear speed of the dragster and (b) the magnitude of the angular acceleration of its wheels.
(a)Vt =r=(288)(0.32)=92.2m/s is a straightforward formula that may be used to calculate the dragster's linear speed at a distance of df = 384 m.
(b) We utilize the following two kinematic equations to determine the angular acceleration of the dragster's wheels during this time: delta theta = 1/2 at2 and wf = at.
By magnitude, what do you mean?Simply said, magnitude is "distance or amount." It shows the size or direction that an item travels in either an absolute or relative sense. It is a way of expressing something's size or scope.
What does magnitude example mean?Size is referred to as magnitude. A automobile is traveling more quickly than a bike, for instance, when it comes to speed. The extent of the car's speed in this situation.
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given an electron beam that is aimed west at the equator, what was the direction of the magnetic force on the electrons due to the earth's magnetic field? hint: the earth's magnetic field is directed north at the equator.
Answer:
magnetic force F = q
Explanation:
what are the two main observational problems with the original big bang theory of the universe
The first law of thermodynamics, which states that you cannot produce or destroy matter or energy, is broken by this. Critics assert that the big bang theory implies the universe didn't exist before the big bang.
According to a theoretical hypothesis known as the Big Bang theory, the cosmos first existed in a state of extreme density and heat. The evolution of the observable universe from the earliest known times through its later large-scale form is explained by a variety of cosmological models of the Big Bang. These models provide a thorough justification for a wide variety of known phenomena, including the abundance of light elements, cosmic microwave background (CMB) radiation, and large-scale structure. Cosmic inflation, or the abrupt and extremely rapid expansion of space during the Universe's early moments, provides an explanation for the flatness problem, or the appearance of uniformity over the whole cosmos. The initial conditions of the Big Bang, however, are not currently well modeled by any commonly accepted quantum gravity theory.
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a runner moving at a speed of 7.20 m/s rounds a bend with a radius of 36m. what is the centripetal acceleration of the runner?
The centripetal acceleration of the runner is 1.44m/sec² if he is moving at a speed of 7.20m/sec while bending a radius of 36m.
Centripetal acceleration increase is characterized as the property of the movement of an item, crossing a roundabout way. Any item that is moving all around and has a speed increase vector pointed towards the focal point of that circle is known as Centripetal speed increase.
You probably seen different instances of centripetal speed increase in your regular daily existence. In the event that you drive a vehicle around a circle, your vehicle is going through centripetal speed increase and a satellite circling the earth likewise follows a centripetal speed increase. Centripetal means towards the middle.
Centripetal acceleration increase can be estimated in meters each second as it is the quantity of meters each second by which your speed changes consistently. At the point when an item is moving in a round movement, it very well may be estimated by utilizing the accompanying condition
[tex]a_c[/tex]=(v²)/r
Where,
[tex]a_c[/tex] is the centripetal acceleration increase in m/sec²
v is the speed in m/sec
r is the sweep in m.
So, we have v=7.20m/sec, r=36m.
So,[tex]a_c[/tex]=(7.20)²/36
=>[tex]a_c[/tex]=(51.84)/36
=>[tex]a_c[/tex]=1.44m/sec²
Hence, centripetal acceleration is 1.44m/sec².
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waves travel along a 100-m length of string which has a mass of and is held taut with a tension of . what is the speed of the waves?
The amount of space a wave covers in a certain amount of time, such as the number of meters it covers in a second, is known as its speed of wave.
The formula Speed = Wavelength x Frequency relates wave speed to both wavelength and wave frequency. The formula wave speed = frequency x wavelength relates wave speed to wavelength, frequency, and period. The speed of light, or roughly 300,000 kilometers per second, is the absolute speed limit at which a wave can move according to Einstein's theory of special relativity. A change in the medium is truly necessary to modify the wave's speed since the wave's speed is a feature of the medium. The wave speed is constant if the medium does not alter during the wave's motion.
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you add equal amounts of heat to two identical cylinders containing equal amounts of the same ideal gas. cylinder a is allowed to expand, while cylinder b is not. Part A How do the temperature changes of the two cylinders compare?
Temperature rise will be there in cylinder B more than in cylinder A because of internal energy.
what is internal energy?
The sum of the kinetic and chemical potential energies of all the particles in the system is the internal energy. Particles accelerate and pick up kinetic energy when energy is applied to increase the temperature.
Briefing:
Cylinder A uses the heat it absorbs to both work while expanding and to increase internal energy (or temperature).
While cylinder B solely uses the heat it absorbs to increase its internal energy
As a result, cylinder B's temperature rise is greater than cylinder A's.
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