The energy of one photon of x-ray radiation with a wavelength of 0.120 nm is 1.65 × 10⁻¹⁵ Joule.
What is photon energy?
The energy that a single photon carries is known as photon energy. Energy is inversely correlated with wavelength because it is directly proportional to the electromagnetic frequency of the photon.
Given that wavelength of photon is 0.120 nm.
Then, energy of photon is= hc/λ
= (6.6×10⁻³⁴×3×10⁸)/(0.120×10⁻⁹ Joule.
= 1.65 × 10⁻¹⁵ Joule.
Hence, the energy of photon is 1.65 × 10⁻¹⁵ Joule.
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Identify the muscles whose tendons contribute to the calcaneal tendon. 47 Gastrocnemius points (8 00:50:40 Plantaris Tibialis posterior Soleus Popliteus
The plantaris works by flexing the knee and ankle joints sporadically. about the foot's position, the central nervous system.
What results in Plantaris pain?There are numerous ways in which the plantaris tendon might hurt. First, when the plantaris tendon is overworked or overloaded, it might experience tendonitis or tendinopathy. Second, it's hypothesized that the plantaris can chafe and compress on the Achilles tendon, injuring it.
What purpose does the plantaris serve?Function. The plantaris functions to plantar flex the knee joint and ankle joint sporadically. The central nervous system may receive proprioceptive feedback information about the location of the foot from the plantaris muscle.
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For lunch you and your friends decide to stop at the nearest deli and have a sandwich made fresh for you with 0. 300 kg of italian ham. The slices of ham are weighed on a plate of mass 0. 400 kg placed atop a vertical spring of negligible mass and force constant of 200 n/m. The slices of ham are dropped on the plate all at the same time from a height of 0. 250 m. They make a totally inelastic collision with the plate and set the scale into vertical simple harmonic motion (shm). You may assume that the collision time is extremely small.
After the ham slices touch the plate, the scale oscillates at an amplitude of 0.0581 m.
What is the meaning of collision and example?A collision that occurs when two vehicles collide violently: On the southbound section of the road, there has been an accident. Two drivers were murdered in a face (= direct) collisions between being an automobile and a cab last night.
Briefing:It is the greatest deviation an object makes from its average location. By using the formula, it may be determined.
ν=ω
ν=ω[tex]\sqrt{A^{2}-x^{2} }[/tex]
Where,
v- velocity
w- angular velocity
A - amplitude
x - displacement
Put the values in the formula,
0.95=6.9[tex]\sqrt[n]{A^{2} -0.0147^{2} }[/tex]
A=0.0581m
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Communication climate refers to the social tone of a relationship
O True
O False
Question 2 The interpretation of a message as confirming or disconfirming is
O objective
O subjective
O both
O none of the above
Question 3 1 pts Communication climate is determined by the degree to which people see themselves valued
O True
O False
1) Communication climate refers to the social tone of a relationship: True
2) The interpretation of a message as confirming or disconfirming is: subjective.
3) Communication climate is determined by the degree to which people see themselves valued: True.
What is communication climate?The degree to which individuals esteem themselves affects the communication atmosphere. It is useless to paraphrase their critiques of us in return.
The atmosphere of communication is crucial because it may affect how messages are received. Understanding the notion is crucial because the communication climate is perceived, which enables companies to foster a pleasant atmosphere and offer clarification as needed.
The "overall feeling or emotional tone amongst people" is referred to as the "communication environment" (Wood, 2018).
1) True
2) subjective
3) True
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a 1000 n crate is lifted to a height of 3.0 m . how much work is done to lift the crate?
The work done by the crate to raise the barrel was found t be about 3000J.
How to calculate work done?
Work is a measure of the energy it takes to move an object; most often force times distance.
It is said that "things that don't move have no merit". Work done can be calculated by multiplying the force by the distance traveled as follows:
Work done = Force × distance
According to this question, a box of 1000N is raised to a height of 3.0m. The work done on the barrel is calculated as follows
W = 1000x3 = 3000J
so the work done for lifting the crate was found to be 3000J
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how much heat transfer (in j) occurs from a system if its internal energy decreased by 200 j while it was doing 44.0 j of work? (enter the magnitude.)
Heat transfer (in j) occurs from a system Q = - 156 J.
Briefly:-We use thermodynamics principles in this situation. There are already obtained relationships for intense properties like internal energy (U), heat transfer (Q), and work (W) that were based on differential equations. The formula is
ΔU = Q + W
But since these factors depend on their signs, we must remember to take them into account. Van Ness, Smith, and Abbott assert that declining has a negative sign convention. If work is being done ON the system, the sign is positive; however, if work is being done BY the system, the sign is negative. in this instance,
ΔU = - 200 J\sW = - 44 J
In that case, Q can be found.
-200 J = Q - 44 J
heat transfer (in j) occurs from a system Q = - 156 J.
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a thin wire 7.0m long has a charge of 1 nC. Find the electric field strength 2.0 mm from the edge of the wire along the axis of the wire.
Answer:
1400
Explanation:
because when the 70m long x20m lone will give u 1400 then u time it with 1 that will give u 1400
Label the blood vessels using the hints provided. Pterygoid plexus of v Middle meningeal Superficial temporal Maxillary v Facial v Posterior auricular V Reset Zoom
The labeling of blood vessels shown below:
What is blood vessels?Arterioles are the incredibly small branches of arteries, the blood channels that convey blood out from the heart. Venules, which are incredibly tiny branches that gather blood from numerous organs and body parts, join to create veins, which carry blood back to the heart.
The arteries divide into progressively smaller branches that supply the body's tissues and organs with oxygen and other nutrients. The oxygen and other nutrients enter the cells when the blood passes through the capillaries, while waste products from the cells travel into the capillaries.
Labeling are shown below:
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The complete question is as follows:
Label the blood vessels using the hints provided. Pterygoid plexus of v Middle meningeal Superficial temporal Maxillary v Facial v Posterior auricular V Reset Zoom.
for each of the following systems and time intervals, s write the appropriate version of equation 8.2, the conservation of energy equation. (a) the heating coils in your toaster during the first five seconds after you turn the toaster on (b) your automobile from just before you fill it with gasoline until you pull away from the gas station at speed v (c) your body while you sit quietly and eat a peanut butter and jelly sand- wich for lunch (d) your home during five minutes of a sunny afternoon while the temperature in the home remains fixed
Option A. Heat coils in your toaster during the first five seconds after you turn the toaster on.
In physics and chemistry, the law of conservation of energy states that the full power of a remoted gadget remains steady; it's far said to be conserved over the years.
The mechanical energy E of a particle stays regular except forces out of doors the machine or non-conservative forces do paintings on it, wherein case, the trade in the mechanical electricity is equal to the paintings accomplished by the non-conservative forces: Wnc, AB=Δ(k+U)AB=ΔEAB.
In mechanics, there are three fundamental quantities that are conserved. those are power, momentum, and angular momentum. when you have looked at examples in different articles, for example, the kinetic strength of charging elephants then it is able to wonder you that electricity is a conserved quantity.
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(6) Different colors of light correspond to different: frequencies (I) intensities (I) wavelengths (A) |only (B) Il only (C) Ill only (D) !and IlI (E) all of the above
They are red, orange, yellow, green, blue, indigo, and violet, in descending order of frequency. They are arranged in reverse order by wavelength because of the inverse relationship. Violet is the hue that occurs most frequently.
What do the various light colors represent?The wavelength of visible light affects its color. These wavelengths span the spectrum, from 700 nm at the red end to 400 nm at the violet.
Do different wavelengths of light correspond to different colors?VISIBLE LIGHT WAVELENGTHS When the entire visible light spectrum passes through a prism, the wavelengths divide into the rainbow's hues because each color has a unique wavelength.
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Ted hits a baseball with a velocity of 60 m/s at an angle of 45 degrees above the horizontal. What are the vertical and horizontal components of the ball's velocity?
The vertical and horizontal components of the ball's velocity be same and it is 42.42 m/s.
What is velocity?
The rate at which a body's displacement changes in relation to time is known as its velocity. Velocity is a vector quantity with both magnitude and direction. SI unit of velocity is meter/second.
Given data:
Magnitude of velocity of the baseball: v = 60 m/s.
It's direction be an angle of 45 degrees above the horizontal.
Hence, vertical component of velocity be = vsinθ = 60 × sin45° m/s = 42.42 m/s.
horizontal component of velocity be = vcosθ = 60 × cos45° m/s = 42.42 m/s.
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When a nucleus of ^235 U undergoes fission, it breaks into two smaller, more tightly bound fragments.
Â
1) Calculate the binding energy per nucleon for ^235U? (Express with appropriate units)Â
2) Calculate the binding energy per nucleon for the fission product ^137 Cs? (Express in appropriate units)
The binding energy per nucleon of 235-U and 137-Cs is given below:
235-U = 7.6 MeV137-Cs = 8.39 MeVWhat is the binding energy per nucleon of 235-U and 137-Cs?The binding energy of a nucleus is given by the following equation:
BE = Δmc²where;
BE is binding energy
Δm is mass defect
c is the speed of light = 931.49 MeV/u
For 235U:
A = 235
Δm = 1.9150664
BE = 1.9150664 * 931.49 MeV/u
BE = 1783.8648 MeV
The binding energy per nucleon is given by the formula; BE/A
BE/A = 1738.648 MeV / 235
BE/A = 7.6 MeV
For 137-Cs, binding energy will be:
Δm is mass defect = 1.23383 u
BE = 1.23383 u * 31.49 MeV/u = 1149.3003 MeV
And, the binding energy per nucleon, BE/A will be:
And, since in the case of 137-Cs, A is 137;
BE/A = 1149.3003 MeV / 137
BE/A = 8.39 MeV
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a 0.341-g wire is stretched between two points 70.5 cm apart. if the tension in the wire is 578 n, find the frequencies of the wire's (a) first, (b) second, and (c) third harmonics. for the first harmonic, the length of the wire is a half wavelength.
The frequencies of the wire's first, second, and third harmonics are 755 Hz, 1550 Hz, and 4650 Hz respectively.
What is the fundamental frequency?The fundamental frequency can be described as the lowest frequency of a periodic waveform. In terms of a superposition of sinusoids, the fundamental frequency can be defined as the lowest frequency sinusoidal in the sum of harmonic frequencies.
Given the mass of the wire, m = 0.341 g = 3.41 × 10⁻⁴ kg
The length of the wire, L 70.5 cm = 0.705 m
The tension in the wire, T = 578 N
The frequency of the fundamental vibration can be calculated as:
[tex]\displaystyle \nu =\frac{1}{2} \sqrt{\frac{T}{mL} }[/tex]
[tex]\displaystyle \nu =\frac{1}{2} \sqrt{\frac{578}{3.41 \times 10^{-4}\times 0.705} }[/tex]
ν = f₁ = 755 Hz
Second harmonic, f₂ = 2f₁ = 2 × 775 = 1550 Hz
Third Harmonic, f₃ = 3 f₂ = 3 ×1150 = 4650 Hz
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what is the smallest one-dimensional box in which you can confine an electron if you want to know for certain that the electron's speed is no more than 10 m/sm/s ?
An electron may be contained in a cage no smaller than 7 m in length.
An electron's composition.It is possible for an electron to be free or linked to an atom. An electron is a negatively charged subatomic particle (not bound). There are three distinct types of particles in an atom: neutrons, reactors, and then an electrons that is attached to an electron.
What purposes serve electrons?To create cross-platform desktop apps using HTML, CSS, and JavaScript, GitHub created the open source package called Electron. By fusing Node and Chromium, Electron achieves this. Apps may be bundled for Linux, Windows, and Mac using a single runtime that supports JavaScript.
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Only one of the statements below uses the term theory in its correct, scientific sense. which one?
According to the given statement Thousands of times have been used to test and validate Einstein's theory of relativity.
How do we use Einstein's theories today?The Global Positioning System, or GPS, is a system of orbiting satellites that is developed with Einstein's Relativity in mind. We apply the Relativity Principle of Einstein every time they use the GPS. Disturbances move across space-time as gravitational waves, according to General Relativity.
How was Newton's theory refuted by Einstein?Once more, Newton's theory violated relativity by predicting an instantaneous force. General Relativity is a brand-new alternative gravity theory that Albert Einstein proposed in 1915. Waiting for a complete solar eclipse was the only way to compare it to Newton's hypothesis. Today, 100 years ago, Einstein was shown to be correct.
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If we are severely dehydrated we expect Select one:
a. ADH levels to increase resulting in producing more dilute urine
b. ADH levels to increase resulting in producing more concentrated urine
c. ADH levels to decrease resulting in producing more dilute urine
d. ADH levels to decrease resulting in producing more concentrated urine
Low blood pressure will result in the following levels of hormones Select one:
a. High Renin;high ADH; low aldosterone
b. High Renin; low ADH; low
c. Low Renin;low ADH;low Alsosterone
d ADH:high Aldosterone High Renin high
Oxylate is Select one:
a. Usually associated with uric acid stones
b. Commonly found in foods like spinach
c. Used in the formation of many calcium kidney stone
d. Both a and b e. Both b and c
If we are severely dehydrated, ADH levels increases resulting in more concentrated urine.
Low BP means low GFR produced so Renin is increased, high ADH and high aldosterone.
Oxylate used in formation of calcium stones in kidney.
What is ADH?
ADH is also called arginine vasopressin. A hormone produced in the hypothalamus of the brain and stored in the posterior lobe of the pituitary gland. It tells your kidneys how much water to save.
ADH constantly regulates and balances the amount of water in the blood. Higher concentrations of water increase blood volume and pressure. Osmotic sensors and baroreceptors work in concert with ADH to maintain hydrogen metabolism.
Osmotic sensors in the hypothalamus respond to the concentration of particles in the blood. These particles include sodium, potassium, chloride and carbon dioxide molecules. When particle levels are out of balance or blood pressure is too low, these sensors and baroreceptors direct the kidneys to store or release water to maintain a healthy spectrum of these substances. . It also regulates the body's thirst.
Therefore, If we are severely dehydrated, ADH levels increases resulting in more concentrated urine.
Low BP means low GFR produced so Renin is increased, high ADH and high aldosterone.
Oxylate used in formation of calcium stones in kidney.
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Three identical lamps are connected in series to each other and to a voltage source. If another identical lamp is added in series connection (all four connected in series), what happens to the brightness of the first three lamps? O Increases O Decreases O Stays the same O Not enough information Which of the following will decrease the capacitance between the plates of a parallel plate capacitor filled with air? I. Decrease the charge on the plates II. Increase the potential difference between the plates III. Increase the separation between the plates IV. Decrease the area of the plates
V. Introduce a dielectric material between the plates O all of them O I, II and IV III O III and IV O III, IV, V
1. decreases
as the bulb is connected in series, the current when passing through all the bulb is increasing and the voltage is divided and decreased.
we can say that the net voltage will be divided equally between all 4 bulbs because of equal current and resistance.
2. ii) Increase the potential difference between the plates
iii) Increase the separation between the plates
capacitance is inversely proportional to the distance between the plates
capacitance is directly proportional to potential difference
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when air expands adiabatically (without gaining or losing heat), its pressure and volume are related by the equation , where is a constant. suppose that at a certain instant the volume is and the pressure is kpa and is decreasing at a rate of kpa/min. at what rate is the volume increasing at this instant?
The rate at which the volume is increasing is dV/dt equals 21.2 cm3/min.
What is adiabatic expansion?Adiabatic expansion is defined as expansion in which there is no heat exchange between the system and its environment and the system uses its own energy to perform work.
An ideal gas is enclosed in an insulated container and allowed to expand in a vacuum for adiabatic free expansion. The work done by or on the system is 0 because the gas cannot expand because there is no external pressure for it to do so.
This should, I assume, state that PV 1.4 = C.
By applying the chain rule and the product rule to the derivative with regard to time, we arrive at:
[tex]PV^1^.^4[/tex] = C
[tex]\frac{d}{dt} (PV^1^.^4)[/tex] = d/dt( C)
On further solving the derivative we get,
(-7)(4201.4) + (99)(1.4)(4200.4)dV/dt = 0
-32934 + 1552.6dV/dt = 0
dV/dt = 32934/1552.6
dV/dt equals 21.2 cm3/min.
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if two objects of different temperature are placed in contact, will heat naturally flow from the object with higher internal energy to the object with lower internal energy?
If two objects of different temperatures are placed in contact, heat will flow from the object with high internal energy to the object with low internal energy.
Internal energy is the sum total of the kinetic and potential energies of an object. The internal energy of an object depends on the temperature of the object. Heat will flow from an object with a high temperature to an object with a low temperature.
An object having a high temperature will definitely be having high internal energy. Therefore, heat will flow from the object of high internal energy to the object of low internal energy.
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a uniform disk of radius 0.5 m is rotating around its center with angular velocity 4 , and angular acceleration 3.4 . a spec of dust is stuck on the disk at a distance of 0.33 from the center. what is the linear acceleration of the dust spec? answer in units of , round your answer to two decimal places.
The linear acceleration of the disk is [tex]8.17 m/s^{2}[/tex].
We know that, a rotating disk has two acceleration:
Radial acceleration ([tex]a_{r}[/tex]) = ω^2 * r and
Tangential acceleration[tex](a_{t} )[/tex] = [tex]\alpha r[/tex]
where ω = angular velocity
[tex]\alpha[/tex] = angular velocity
r = radius
Given, ω = 4 m/s , [tex]\alpha[/tex] = 3.4 [tex]m/s^{2}[/tex] , r = 0.5m
Putting these values in above equation we get
[tex]a_{r} = 8 m/s^{2} \\a_{t} = 1.7 m/s^{2}[/tex]
The linear acceleration is given by:
[tex]a = \sqrt{a_{r} ^{2} + a_{t} ^{2} }[/tex]
Putting respected values in above equation we get a = 8.17 [tex]m/s^{2}[/tex].
So the linear acceleration of the disk is [tex]8.17 m/s^{2}[/tex].
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anna and jon sit on a seesaw. anna has a mass of 60 kg and sits 2 m from the center. jon has a mass of 70 kg. how far from the center should jon sit so the seesaw is balanced?
To balance the seesaw, Jon should sit in the middle, where dJ = 1.7 m
Briefly:-The equation for balancing the moments at the seesaw's center is as follows:
∑Mo = 0
'Mo =
Where:
Mo: Moments in the balance's center(o) added algebraically
Moment of the o point (Mo) (N*m)
force F ( N)
Distance from the force to the origin (in N*m)
Data
mA = 60 kg: Anna's mass mJ = 70 kg:
Jon's mass dA = 2 m:
Anna's distance from the seesaw's center g:
Gravitational acceleration
Calculating the distance (dJ) from Jon to the seesaw's center with ∑Mo = 0 Ana's weight is WA, and Jon's weight is WJ.
W = (mA*g)(dA) - (mJ*g)(dJ) = 0 (mA*g)(dA) - (mJ*g)(dJ) = 0
(mA)(dA) = (mJ)(dJ)
We multiply the equation by g:The center where Jon should sit for the seesaw to be balanced is = 1.7 m.
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what is the frequency of an electromagnetic wave that has the same wavelength as a 1.9 khz sound wave in water? express your answer with the appropriate units.
The wavelength of the electromagnetic wave is 1.58 * 10⁵m. Electromagnetic radiation is made up of electromagnetic field waves that travel through space carrying electromagnetic radiant energy.
Because of their diverse origins and effects on matter, electromagnetic waves of varying frequencies are given different names. Microwaves, radio waves, visible light, ultraviolet radiation, infrared radiation, X-rays, and gamma rays are in the order of increasing frequency and decreasing wavelength.
The relation between the wavelength, frequency, and speed is as follows:
ν = λf
Here, the speed of the electromagnetic wave is ν
Rearrange the above expression to get λ
λ = ν / f
The speed of electromagnetic waves in a vacuum is 3 * 10⁸ m/s.
Substitute 1.9kHz for f and 3 * 10⁸ m/s for ν in the above expression.
λ = ν / f
λ = ( 3 * 10⁸ m/s) / 1.9kHz
λ = ( 3 * 10⁸ m/s) / 1.9kHz (10³ Hz/ 1kHz)
λ = 157894 m
λ = 1.58 * 10⁵m
Thus, the wavelength of the electromagnetic wave is 1.58 * 10⁵m.
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Would someone PLEASE HELP ME
Acceleration of this helicopter is: 7 m/sec².
What is speed?Velocity is the pace and direction of an item's movement, whereas speed is the time rate at which an object is travelling along a route. In other words, although velocity is a vector, speed is a scalar quantity.
Given that,
Initial Speed :- 25 m/s
Final Speed :- 60 m/s
Time :- 5 sec
Now by using motion equation ..
v = u + at
60 m/sec = 25 m/sec + (a × 5 sec)
or, 5a = 60 - 25
or, a = 35m/sec /5 sec
or, a = 7 m/sec²
Thus, acceleration of this helicopter is: 7 m/sec².
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As a wave links of electromagnetic waves increase the frequencies ____ for waves moving in a ____
your question seems incomplete, I think you are asking the question which is given below.
Question: As the frequency of electromagnetic waves increases, what happens to the wavelength?
when the frequency of an electromagnetic wave increases, its wavelength would decrease, according to eq (i).
speed of light = frequency X wavelength ............(i)
as the speed of light is constant in the same medium.
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which electromagnetic radiation wavelength is efficiently observed using ground based telescopes? a. radio b. infrared c. visible d. X-rays.
Radio is the electromagnetic radiation wavelength is efficiently observed using ground based telescopes. Option A.
What is meant by electromagnetic radiation?In terms of physics, electromagnetic radiation is made up of electromagnetic field waves that travel over space while carrying radiant electromagnetic energy. It consists of X-rays, gamma rays, microwaves, infrared, light, and radio waves. These waves are all a component of the electromagnetic spectrum.
The energy levels of electromagnetic radiation can range from low to high. It consists of x-rays, gamma rays, infrared light, visible light, ultraviolet light, radio waves, and microwaves.
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along the axis of a dipole, 0.5 m from its cen- ter, you measure an electric field of magni- tude 30 n/c. the charge separation between the two point charges in the dipole is 0.004 m. what is the charge at the positive end of the dipole?
The resulting dipole is 0.56 N/C
Charges of the dipole, q = 30
Separation distance between the charges, d = 0.0010 m
Separation distance between the center and the charge, d' = d/2 = 0.25
x = 4.0 m
y = 0.0 m
Now,
The electric field due to the positive charge on the right of the origin:
E = k{q/(d'+x)²}
where
k = Coulomb's constant = 9 x 10⁹ Nm²/C²
Now,
E = 1124.72 N/C
Similarly, electric field due to the negative charge:
E' = k{q/(x-d')²}
E' = -1125.72 N/C
Thus
E(total) = E' - E = 0.56 N/C
Therefore, the positive charge is 0.56 N/C.
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four copper wires of equal length are connected in series. their cross-sectional areas are 1.08 cm2, 1.94 cm2, 3.08 cm2, and 5.06 cm2. a potential difference of 120 v is applied across the combination. determine the voltage across the 1.94 cm2 wire.
The voltage applied across 1.94 cm² wire is22.1 V
We are given that
A₁ = 0.7 cm² = 1.08*10⁻⁴ m²
A₂= 2.5 cm² = 1.94*10⁻⁴ m²
A₃= 2.2 cm² = 3.08*10⁻⁴ m²
A₄= 3 cm² = 5.06*10⁻⁴ m²
Using 1cm²=10⁻⁴ m²
We know that using resistance formula we can calculate voltage
R = ρL/A
In series
R=R₁+R₂+R₃+₄
R=ρL/{A₁+ρL/{A₂}+ρL/{A₃}+ρL/{A₄}
Substitute the values
R = ρL/(2.62*10⁴)
V = 120v
I = V/R
I = 120 / {ρL(2.62*10⁴)}
Now the voltage across can be determined.
Voltage across the 1.94 square cm wire=IR=I*(ρL/A₂)
Voltage across the 1.94 square cm wire=ρL/ 1.94*10⁻⁴=22.1 V
Voltage across the 1.94 square cm wire=22.1 V
Therefore, The voltage applied across 1.94 cm² wire is22.1 V
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a performer seated on a trapeze is swinging back and forth with a period of 8.85 s. if she stands up, thus raising the center of mass of the trapeze performer system by 35.0 cm, what will be the new period of the system?
The new time period of the system is 8.77 sec. If she stands up.
calculation
T = 2π√(L/g)
l = g*(8.85/2π)^2
new length = l -0.35= 8.85-0.35
T = 8.77 sec
Term (T) is the amount of time an oscillating body takes to repeat itself, and Frequency (f or ν) is the variety of instances it repeats in one 2d or unit time. in case you degree time in s (seconds) then frequency is measured in Hz (cycles or durations in keeping with second.
center of mass:
The centroid of a mass distribution in space is the unique point where the weighted relative positions of the distribution masses sum to zero. This is the point where force can be applied to produce linear acceleration without angular acceleration.
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The direction of the force of sliding friction is always select one to that of velocity of the object and is select one static friction. True or False?
The direction of the force is sliding friction is always select one to that velocity of the object and is Select one Statics friction this statement is false.
What is friction?Friction is the force resisting to the relative motion of the solid surfaces, fluid layers, and material elements and the sliding against each other. There are some several types of friction: Dry friction is a force and that opposes the relative lateral and the motion of two solid surfaces in contact.
Frictional force offers to the resistance to the applied by the force opposing it is the motion. Thus, it always acts like it is in the direction of the opposite to that of the object in the motion
So it will not be in direction of the motion
And static friction also work as the opposite direction of the motion .
Thus, it is false.
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how fast would a(n) 83 kgkg man need to run in order to have the same kinetic energy as an 8.0 gg bullet fired at 400 m/sm/s ? express your answer with the appropriate units.
It can be said that the speed is v=3.9.0m/s
given data use for calculation:-
Generally the equation for the kinetic energy is mathematically given as
K.E. = 1/2 m v2
K.E.=1/2*.008*(400*400)
K.E.= 640J
therefore velocity:-
[tex]V^{2}[/tex]= 2*KE/m
V= 3.9 m/s.
What does kinetic energy mean in everyday language?The energy an object has as a result of motion is referred to as kinetic energy. If we want to accelerate an object, we must exert force. To apply a force, we must work hard. When the work is done, energy will have been transferred to the item, causing it to move at a new, constant speed.
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a sled is sliding down a snowy hill at constant velocity. the hill makes an angle of 12o with respect to the horizontal. what is the coefficient of kinetic friction between the hill and the sled?
The sled slows down and eventually stops as a result of the kinetic frictional force that the snow imparts on its runners. The kinetic friction coefficient is 0.050.
What is the sled's coefficient of friction with the frozen ground?The girl and sled together weigh 755 N, with a kinetic friction coefficient of 0.047 between the runners of the sled and the hard, ice snow. 9.81 m per s2 is the acceleration of gravity.
How are sled calculations made?The system determines the SLED as follows if the total shelf life is supplied in the material master record: SLED equals the whole shelf life plus the manufacture date from the GR document.
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