Answer:
Explanation:
The net force on the airplane:
R = 800 - 40 - 60 = 700 N
In the “Little Prince,” the Prince visits a small asteroid called B612. If the asteroid has a radius of 20.0 m and a mass of 1.00 x 10^4kg, what is the acceleration due to gravity on the asteroid (G=6.67x10-11N m2/kg2)?
The acceleration due to gravity on the asteroid, given that it has a mass of 1.00×10⁴ kg and a radius of 20.0 m is 1.67×10¯⁹ m/s²
How do I determine the acceleration due to gravity?Acceleration due to gravity of planets can be obtained by using the following formula:
g = GM / R²
Where
g is acceleration due to gravity on the planet M is the mass of the planetG is the gravitational constantR is the radius of the planetNow, we shall apply the above formula, to determine the acceleration due to gravity on the asteroid. Details below
Mass of asteroid (M) = 1.00×10⁴ KgRadius (R) = 20.0 mGravitational constant (G) = 6.67×10¯¹¹ Nm²/Kg²Acceleration due to gravity (g) =?g = GM / R²
g = (6.67×10¯¹¹ × 1.00×10⁴) / (20)²
g = 6.67×10¯⁷ / 400
g = 1.67×10¯⁹ m/s²
Thus, we can conclude that the acceleration due to gravity on the asteroid is 1.67×10¯⁹ m/s²
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The relationship between power, force, and velocity is ______?
Answer: P = FV becuase all of them are equal in strength.
Explanation: In the straight forward cases where a constant force moves an object at constant velocity, the power is just P = Fv. In a more general case where the velocity is not in the same direction as the force, then the scalar product offorce and velocity must be used. P = Power, F = Force, V = Velocity.
Hoped This Helped!
Answer:
F-V
Explanation:
remember that power = work/time = force × distance/time = force × velocity).
a brick is thrown upwards at an angle 25 to the horizontal and with an initial velocity of 15 m/s
a) how long did the brick stay in air
b) determine the maximum horizontal distance traveled by the brick
a) The brick was in the air for 7.84 sec.
b) The maximum horizontal distance traveled by the brick is 9.1 m.
What is a projectile motion?When a particle is thrown obliquely near the surface of the Earth, it travels in a curved path with constant acceleration towards the center of the Earth (assuming the particle stays near the surface). Such a particle trajectory is said to be a projectile, and the motion is called projectile motion.
How to calculate the following?Time of flight (T) = 2usinθg
Where, u = initial velocity (15 m/s)
θ = 25°
g = 9.8 m/s²
T = 2 × 0.4 × 9.8
T = 7.84 s
Horizontal distance or range (R):
R = [tex]\frac{u^{2}sin2\theta }{2g}[/tex]
R = 9.1 m
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Suppose a hockey puck slides down a frictionless ramp with an acceleration of 4.10 m/s2. What angle does the ramp make with respect to the horizontal?
Suppose a hockey puck slides down a frictionless ramp with an acceleration of 4.10 m/s2 . The angle that the ramp make with respect to the horizontal will be 24.71°
F net = 0
mg sin(theta ) = mass * acceleration
sin(theta) = a /g
theta = [tex]sin^{-1}[/tex] ( a / g)
= [tex]sin^{-1}[/tex] ( 4.10 / 9.8 )
= [tex]sin^{-1}[/tex] ( 0.418 )
= 24.71°
The angle that the ramp make with respect to the horizontal will be 24.71°
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17. Each of the figures below shows the velocity v of a particle and the force or forces
acting on the particle. Forces F1 and F2 have the same magnitude. In which figure is the
particle's speed or direction NOT being changed?
Answer:
option (A)
Explanation:
In fig. (A) two equal forces are acting at the same point in opposite directions ,therefore net force is zero as they will cancel each other.Now as there is no net force on particle so the acceleration is zero(a=F/m=0/m=0) and thus velocity v remains constant
A person moves a box across a room by pushing downwards on it with a force of 485 N at an
angle of 35.0° below the horizontal. If the box has a mass of 32.6 kg and is pushed at constant
velocity, what is the coefficient of kinetic friction between the box and the floor?
The coefficient of kinetic friction between the box and the floor is 0.87.
What is the coefficient of kinetic friction?
The coefficient of kinetic friction between the box and the floor is calculated by applying the formula for net force on the box.
F(net) = ma
where;
F(net) is the net forcem is mass of the boxa is the acceleration of the boxat a constant velocity, the acceleration of the box, a = 0
F(net) = 0
The net force is obtained from the applied force and force of friction;
Fcosθ - μmg = 0
where;
F is the applied forceμ is the coefficient of kinetic frictionθ is the angle at which the force is applied = 90 - 35 = 55⁰μmg = Fcosθ
μ = Fcosθ / mg
μ = (485 x cos55) / (32.6 x 9.8)
μ = 0.87
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(It's solved :))
Mass of a body is 100±2% kg and it's volume is 100±3% m³. Find the percentage error of the density of the body.
The mass and volume of a body are given, then the percentage error of the density of the body will be equal to 5%.
What is density?Mass per unit volume of a solid substance, density. Density is defined as d = M/V, where M stands for gravity, and V for volume.
The measure of density that will be most frequently used is grams per cubic centimeter. For instance, the density of Earth is 5.51 grams per cubic centimeter, whereas the density of water is 1 gram per cubic centimeter. Kg per cubic meter is another method for determining density.
Mass, M = 100±2% kg = 100±0.02 kg
Volume, V = 100±3% m³ = 100±0.03 m³
P =M/V
Use the error analysis method,
log P = log M - log V
Differentiate on both sides of the above equation,
dP/P = dM/M+dV/V
Check for maximum possible error:
dP/P = 0.02/100+0.03/100 = 0.05/100
dP/P = 5%.
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The moist weight of 5600 cm3 of a soil is 102.3N. The moisture content and the specific gravity of the soil solids are determined in the laboratory to be 11% and 2.7, respectively. Calculate the following: a- Moist unit weight b- Dry unit weight c- Void ratio d- Porosity e- Degree of saturation (%) f- Volume occupied by water
The Moist unit weight of the soil with a moist weight of 102.3 N, moisture content of 11 % and specific gravity of 2.7 is 18.27 KN / m³
Moist weight = 102.3 N
Volume = 5600 cm³
Water content, w = 0.11
Specific gravity, G = 2.7
a ) Moist unit weight, γ[tex]_{b}[/tex]
γ[tex]_{b}[/tex] = Moist weight / Volume
γ[tex]_{b}[/tex] = 102.3 / 5600 * [tex]10^{-6}[/tex]
γ[tex]_{b}[/tex] = 18.27 KN / m³
b ) Dry unit weight, γ[tex]_{d}[/tex]
γ[tex]_{d}[/tex] = γ[tex]_{b}[/tex] / 1 + w
γ[tex]_{d}[/tex] = 18.27 / ( 1 + 0.11 )
γ[tex]_{d}[/tex] = 16.46 KN / m³
c ) Void ratio, e
γ[tex]_{d}[/tex] = G γ[tex]_{w}[/tex] / ( 1 + e )
16.46 = 2.7 * 9.81 / ( 1 + e )
1 + e = 1.61
e = 0.61
d ) Porosity, n
n = e / ( 1 + e )
n = 0.61 / ( 1 + 0.61 )
n = 0.38
e ) Degree of saturation, s
s = G w / e
s = 2.7 * 0.11 / 0.61
s = 0.487
s = 48.7 %
f ) Volume occupied by water, V
V = G w
V = 2.7 * 0.11
V = 0.297
Therefore,
γ[tex]_{b}[/tex] = 18.27 KN / m³
γ[tex]_{d}[/tex] = 16.46 KN / m³
e = 0.61
n = 0.38
s = 48.7 %
V = 0.297
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The maximum acceleration attained on the interval 0 ≤ t ≤ 3 by the particle whose velocity is v(t)=t^3-3 t^2+12 t+4 is
The maximum acceleration attained on the interval 0 ≤ t ≤ 3 by the particle is equal to 21 m/s².
What is acceleration?Acceleration of an object can be described as the change in velocity of the object with respect to time. Acceleration can be described as the first derivative of the velocity of an object with respect to time.
The expression for the acceleration in terms of velocity can be represented as:
[tex]{\displaystyle a =\frac{dv}{dt}[/tex]
Given the expression of the velocity is v (t) = t³ - 3t² + 12t +4
dv/dt = v'(t) = d/dt(t³ - 3t² + 12t +4)
a(t) = 3t² - 6t +12
At time t = 0 , a(0) = 3(0)² - 6(0) +12 = 12
At time t = 3s, a(3) = 3(3)² - 6(3) +12 = 21
Therefore, the maximum acceleration attained on the interval 0 ≤ t ≤ 3 is equal to 21.
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2.
In order to expand agriculture and urban areas to meet increased demand for growing
populations, water supples often have to be diverted. In three to five sentences, construct a
potential chain of consequences for what could happen when water is diverted from large bodies
like lakes and rivers. The chain does not have to be linear (i.e., five steps 1n a row), but can have
several branches, one for each different potential consequence.
Water bodies' quantity and flow both decrease.
What will happen if large water bodies are diverted?When a river is redirected away from major water bodies, like rivers, lakes, etc. the volume of water flowing through the rivers and lakes decreases, and there is a reduction in the flow of water as well. This is because the water flows to the diverted sides of the river. We can say that this river's diversion has a detrimental impact on other communities because the areas it flows through may also suffer from a lack of water for either daily necessities or crop production.
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An airplane is flying with a force of 800 N. It experiences a force of air resistance of 40 N and a wind force of 60 N, both acting in the opposite direction that the plane is traveling. What is the net force on the airplane?
An airplane is flying with a force of 800 N. It experiences a force of air resistance of 40 N and a wind force of 60 N, both acting in the opposite direction that the plane is traveling. The net force on the airplane will be 700 N
Force with which airplane is flying ( F1 ) = 800 N
opposite to which two forces are acting
air resistance = 40 N
wind force = 60 N
net force = F1 - 40 - 60 = 800 - 100 = 700 N
The net force on the airplane will be 700 N
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focal length of a concave mirror is 10 cm find the position nature and size of the image formed when an object is placed 10cm from the mirror
focal length of a concave mirror is 10 cm find the position nature and size of the image formed when an object is placed 10cm from the mirror
formula for finding image distance(v) is given
[tex] \frac{1}{f} = \frac{1}{v} + \frac{1}{u} [/tex]
and
[tex] \frac{1}{v} = \frac{1}{f} - \frac{1}{u} [/tex]
where,
f is focal length
v is image distance,and,
u is object distance
The position of the image is at infinity, nature is real and the size of the image formed is highly magnified.
A concave mirror has a reflective floor that is curved inward and far from the light source. Concave mirrors mirror mild inward to at least one focal length. not like convex mirrors, the picture shaped by a concave replicate suggests exceptional photo sorts depending on the space between the item and the replicate.
Calculation:-
1/f = 1/v + 1/u
1/10 = 1/v + 1/10
V = infinity
The size of the image is Highly magnified and real.
Concave mirrors form both real and virtual photos. while the concave reflect is positioned very close to the object, a digital and magnified photo is received, and if we grow the gap between the object and the mirror, the size of the picture reduces, and real snapshots are shaped.
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what is the importance of Biology Organization?
Answer:
Like everything in life, organisation is important. One major reason is the systematic and structural building of the subject into different levels so it becomes easier to study each separately as opposed to the whole in one go.
Also, it shows how each level integrates into the next in a clear and simpler way.
when we study about cells, as the basic building block of living things, we can focus on the cell as a unit and its structures and the multitude of processes that take place within its membrane and without, we learn how living organisms whether unicellular or multicellular survive. The field of microbiology is well suited to that level.
The next level of tissues, illustrates how similar cells interact and form a group.
Going into organs, different tissues have to be compatible so they can perform specific function(s). This surely is important to illustrate the performance of organs as part of systems.
A whole living organism is a collection of all those systems working together and coordinating on a constant and continuous basis to make sure that the biological machinery is fully functional, free of ailments and diseases.
A healthy organism needs to make sure that all levels are in synchrony to be able to survive and pass on its genetic information to the next offspring to ensure the survival of the species
Juan
has been really limiting his calories hoping to lose weight quickly. He figures as long as he drinks a lot of water, the impact on his body will not
be that bad. However, after a week of eating as little as possible, he has actually gained two pounds. What BEST explains why this happened?
A. His body is holding onto calories because of his low calorie intake.
His scale clearly has a problem because he should see weight loss by now.
He was only eating high fat food and now he has switched to healthy food.
D. He is not doing any exercise, so he cannot lose any weight based on diet alone.
B.
C.
He was solely consuming high-fat foods until recently, when he began consuming nutritious foods.
Briefing:
Instead of helping you lose weight, hopping from one diet fad to another can make you put on weight. Your daily calorie intake can fluctuate significantly, which can cause your metabolism to slow down. To adjust to new food, your metabolism needs about three weeks.
Obesity is typically brought on by excessive eating and insufficient exercise. A large portion of the excess energy will be stored by the body as fat if you consume large amounts of energy, especially fat and sugars, without expelling it through exercise and physical activity.
Even if the food is good for you, the calories can still add up and result in a weight loss plateau or even weight gain.
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A piece of clay sits 0.22 m from the center of a potter’s wheel.
If the potter spins the wheel at an angular speed of 20.5 rad/s, what is the magnitude of the centripetal acceleration of the piece of clay on the wheel?
Answer in units of m/s2.
A piece of clay sits 0.22 m from the center of a potter’s wheel. If the potter spins the wheel at an angular speed of 20.5 rad/s, The magnitude of the centripetal acceleration of the piece of clay on the wheel will be 92.455 [tex]m/s^{2}[/tex]
Centripetal acceleration is defined as the property of the motion of an object, traversing a circular path. Any object that is moving in a circle and has an acceleration vector pointed towards the center of that circle is known as Centripetal acceleration.
centripetal acceleration = r * [tex]omega^{2}[/tex]
r = radius
omega = angular speed
acceleration = 0.22 * [tex]20.5^{2}[/tex] = 92.455 [tex]m/s^{2}[/tex]
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A student rubbed a plastic rod with a doth
The rod became negatively charged and the cloth became positively charged
explain why the cloth became positively charged
Answer:
When different insulating materials rub against each other, they can become electrically charged. When the cloth is rubbed against the rod, the friction causes electrons to gain energy, transferring themselves to the rod and therefore becoming posively charged. The rod is now negatively charged as it has gained electrons.
8. A .5 kg soccer ball is kicked with a force of 50 N for .25 s. What is the change in momentum caused by the kick
The mass of soccer ball is 5 kg. A ball got a force (50 N) which caused change in momentum for 25 second.
The value of the change in momentum can be described below :
The change in momentum is called as Impuls.
The formula of Impuls --> I = F × t
I = Impuls, F = Force (N), t = time (s)
I = F × t
I = 50 × 25 = 1250 Ns
So, the change in momentum of 5 kg ball is 1250 Ns.
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Here is my question
A meteoroid is moving towards a planet. It has mass m = 0.34 × 109 kg and speed v1 = 2.6 × 107 m/s at distance R1 = 1.6 × 107 m from the center of the planet. The radius of the planet is R = 0.22 × 107 m. The mass of the planet is M = 9.6 × 1025 kg. There is no air around the planet.
Enter an expression for v, the meteoroid's speed at the planet's surface, in terms of G, M, v1, R1, and R.
Calculate the value of v in meters per second.
An expression for velocity, v, of the meteoroid's speed at the planet's surface, in terms of G, M, v, R1, and R is v = v₁ - √{2GM/(R₁ - R)}
The value of v, the meteoroid's speed at the planet's surface, in meters per second is 2.596 * 10⁷ m/s.
What is the speed of the meteoroid?The speed of the meteoroid is equal to the difference between the speed of the meteorite, v₁, and the escape velocity of the meteorite from the gravitational pull of the planet.
The escape velocity of an object is equal is the velocity of an object which when summed with the gravitational potential energy of the object is equal to zero.
The formula for escape velocity, Ve, is given below:
Ve = √2GM/r
where;
G = universal gravitational constant
M = mass of the body to be escaped from
r = distance from the center of the mass
G is the gravitational constant = 6.67 * 10⁻¹¹ m³kg⁻¹s⁻²
v₁ = 2.6 * 10⁷ m/s
Hence, the velocity of the meteorite will be:
v = v₁ - √{2GM/(R₁ - R)}
Calculating the velocity, v
v = 2.6 * 10⁷ m/s - √{(2 * 6.67 * 10⁻¹¹ * 9.6 * 10²⁵ ) / (1.6 * 10⁷ - 0.22 * 10⁷)}
v = 2.596 * 10⁷ m/s
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A ball is thrown straight upward and returns
to the thrower’s hand after 2.39 s in the air.
A second ball is thrown at an angle of 35.0
◦
with the horizontal.
At what speed must the second ball be
thrown so that it reaches the same height as
the one thrown vertically? The acceleration
of gravity is 9.81 m/s
2
.
Answer in units of m/s.
The speed the second ball must be thrown so that it reaches the same height as the one thrown vertically is 40.84 m/s.
What is the maximum height reached by the first ball?
The maximum height travelled by the first ball is calculated by applying the following kinematic equation as shown below;
h = vt + ¹/₂gt²
where;
v is the initial vertical velocity of the first ball = 0t is the time of motion of the first ballh = 0 + ¹/₂gt²
h = ¹/₂gt²
h = ¹/₂(9.8)(2.39²)
h = 28 m
The speed the second ball must be thrown so that it reaches the same height as the one thrown vertically is calculated as follows;
h = (u²sin²θ)/2g
u²sin²θ = 2gh
u² = (2gh) / (sin²θ)
u² = (2 x 9.8 x 28) / (sin 35)²
u² = 1,668.1
u = √1,668.1
u = 40.84 m/s
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a 4000 kilogram truck travels in a straight line at 10 0 msec what is its momentum
The momentum of the truck is 40,000 kg m/s
Given mass of a truck = 4000 kg
mass when expressed in grams will be
mass of a truck = 4 grams
However since the standard unit of momentum is kg m/s we will not convert the units
And the velocity which is given is 10 m/s
And momentum can be defined as the product of mass and velocity
thus momentum = mass × velocity
momentum = 4000 × 10
momentum = 40000 kg m/s
Thus the momentum of the truck is 40,000 kg m/s
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What is the change in momentum applied by a boxer to his rival when he strikes him with a force of 200N in 0.05s?
The change in momentum applied by a boxer to his rival when he strikes him with a force of 200N in 0.05s is 10 Ns
What is momentum?Momentum can be defined as "mass in motion". All objects have mass. So if an object is moving, it has momentum and its mass is moving. An object's momentum depends on two variables: How much matter is moving and how fast is it moving? It is the strength or power gained by a movement or sequence of events.
Momentum (P) equals mass (M) times velocity (v). However there are other ways to think about momentum. Force (F) is equal to change in momentum (ΔP) with respect to change in time (Δt). Also, the change in momentum (ΔP) is equal to the momentum (J). Impulse has the same units as impulse (kg*m/s or N*s).
ΔP = F × Δt
ΔP = 200 × 0.05
ΔP = 10 Ns
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An object is launched with the velocity v₀ shown. The horizontal and vertical components vx and vy, respectively, of the initial velocity are also shown. If air resistance is negligible, which of the following best shows ax and ay when the object reaches the highest point in its trajectory?
The best shows ax and ay when the object reaches the highest point in its trajectory is aₓ = 0 and [tex]a_y[/tex] acting downwards. So the 2nd potion is correct.
What is acceleration?Acceleration is rate of change of velocity with time. Due to having both direction and magnitude, it is a vector quantity. Si unit of acceleration is meter/second² (m/s²).
What is projectile motion?A projectile is an object or particle that is launched toward the surface of the earth and moves along a curved route solely due to the force of gravity. In order to evaluate this type of motion, the acceleration and velocity components are split into separate analyses for the horizontal and vertical directions.
At the highest point in object's trajectory;
Acceleration due to gravity acts along negative y axis and no acceleration acts long x axis. so accelerations along x and y axis can be represented by aₓ = 0 and [tex]a_y[/tex] acting downwards. So the 2nd potion is correct.
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Anatomical directional terms worksheet
Answer:
1. Superior- toward the head
2. Inferior- away from the head
3. Anterior- toward the front
4. Posterior- toward the back
5. Ventral- toward the belly
6. Dorsal- toward the back
7. Proximal- toward the center of the body
8. Distal- away from the center of the body
Explanation:
A machine gun is pointed upward at an angel 30° with respect to the horizontal and fires a projectile with a velocity of 200m/s .find the height and range of the projectile
The height and range of the projectile are 500 meters.
Solution:
The initial vertical speed is 100m/s (200Sin30) so if g is 10m/s per second it will take 10 seconds to rise and 10 seconds to fall → 20 seconds fire time.
Horizontal velocity is 200Cos30 or 173 m/s
Range? 3460 meters.
Height? The average vertical speed is 50m/s (from 100 to zero) and it rises for 10 seconds. 500 meters.
This equation defines the maximum projectile height from the launch position and depends only on the vertical component of the initial velocity. The maximum horizontal distance a projectile travels is called range. The range is the difference between the lowest and highest values. Indicates that the maximum horizontal distance is four times the maximum height the projectile will reach.
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Please help me
Explain why driver age 16-18 are most likely to be involved in traffic accidents
Answer:Lack of experience.
Explanation:
Research from the CDC points to a few key reasons teen drivers are likely to be involved in car accidents: Lack of experience. Teen drivers have triple the fatal crash risk of older drivers, in part because they do not have the skills to recognize and avoid road hazards.
Use the graph to answer the following questions.
Answers have a 5 % tolerance to allow for estimation.
Note that slope may be positive or negative.
What is the y-intercept of the graph?
What is the slope of the graph?
What is the area under the graph?
It is to be noted that the y-intercept of the graph is 20. The slope is -0.2; while the area under the graph is: 840
How do you find the intercept?At x = 0, the value of y is 20. Hence the intercept of the graph is 20.
To compute the slope, recall that the graph passes through points (0, 20) and (60, 8) hence the solution of the graph is given as:
Change in y coordinate/Change in x coordinate
= (8-20)/60-0)
= -12/60
= -1/5 or -0.2
The area under the graph compares a right-angled triangle and a rectangle. To get the area under the graph we need to find the sum of the areas of both shapes.
Recall that Area of a Right Angled Triangel is given as 1/2 B*H
Hence
⇒ 1/2 * 12 * 60
= 360
The area of a rectangle is L x B
Hence
⇒ 8 x 60
= 480
Thus, the area under the graph is
360 + 480
= 840
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a car with a momentum of 50000 kg ms north has a mass of 2175 kg what is the velocity of the car
The velocity of the car will be 22.98 m/s with a momentum of 50000 kgms and has a mass of 2175 kg.
Momentum is the term used to describe the state of motion of an item whose mass is non-zero. Thus, momentum has an impact on all moving objects. p=mv, where m is an object's mass and v is its rate of motion, is the formula for momentum. Due to its classification as a part of velocity, momentum is a vector. This implies that momentum has a sizeable magnitude and a clear direction, with the latter shown by a vector or an arrow. A certain mass and speed are two examples of when an object has momentum. Momentum always remains constant as a result. Momentum conservation law states as such.
The formula of momentum will be:
p = mv
where, p = momentum = 50000 kgms
m = mass = 2175 kg.
v = velocity = ?
substitute the given values,
momentum = mass x velocity
50000 =2175 x v
v = 50000 / 2175
=22.98 m/s
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Work with a group to develop a plan to reduce water use at school
The water can be conserved by some of the given tips, turn off the water when washing your hands, Carry a refillable water bottle, Skip the tray in the lunch line, use only one plate, Report leaks to the appropriate authorities, etc.
What is the conservation of water?The protection, management, and development of surface and groundwater resources as well as pollution prevention.
There are some tips to conserve water or reduce water use in school,
Turn off the water when washing your hands - On average, people wash their hands nine times each day. People can save up to six gallons of water per day on average if they turn off the faucet while washing their hands.Use fewer utensils in the canteen - Water waste in cafeterias and dining areas is well-known. Dishwashing consumes the majority of the water used in industrial kitchens. Keeping the number of dirty dishes they produce to a minimum is one approach for students to conserve water.Report leaks to the appropriate authorities - Students are frequently the first on campus to discover leaks. Report running toilets, busted water fountains, busted hoses, and leaky faucets. 100 gallons of water a day can be wasted by a single dripping faucet.Form a Club and Organize - When students organize into recognized clubs, they often have more success working with the administration of their school.Therefore, these recommendations for pupils on how to conserve water at school may seem minor or small in comparison to the tremendous environmental issues that exist today.
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A large semitrailer truck and a small car have equal momentum. How do their speeds compare?.
On the basis of their speed comparison, the truck has a much higher speed than the car.
what is linear momentum?
The relationship between an object's mass (m) and velocity (v) is known as its linear momentum.
An equation can be used to explain this relationship. Momentum is defined as the body's mass times its velocity, P = m /times v, etc.
Main body:
The mass of the truck is significantly greater than the mass of the car because the semitrailer truck is enormous and the car is little. It is obvious that with a constant momentum, greater mass results in slower speed and less mass results in faster speed.
Inertia in motion is expressed by the term momentum. The product of an object's mass and velocity is its momentum. Because of its greater bulk, a moving truck has more momentum than a car travelling at the same speed. A truck may go with less momentum than a fast car.
Therefore, on the basis of their speed comparison, the truck has a much higher speed than the car.
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The diagram shows an oscilloscope
trace from an AC supply. Calculate
the period of this supply if each
horizontal division represents 2ms.
The period of the this given oscilloscope trace from an AC supply is calculated as 1 * 10⁻³ seconds.
What do you mean by period?Period of a wave is the inverse of the frequency so the formula for wave period is, T = 1 / f , where T is period which is the time taken for one cycle to complete, and F is frequency.
To obtain period from frequency, first you have to convert frequency from Hertz to 1/s and then divide 1 by the frequency. The period of a wave is measured in seconds (s), while the frequency is measured in Hertz (Hz).
Given each horizontal division is 2ms
the time= 10ms
Period = 1/T
= 1/10ms
= 0.1ms
Period = 1 * 10⁻³ seconds
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