1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
koban [17]
3 years ago
12

If an object starts from rest, what is its initial velocity?

Physics
1 answer:
Vladimir79 [104]3 years ago
4 0

Answer:

0 m/s

Explanation:

velocity= change in displacement/ time

at rest, the ball does not travel any distance

0/ t

=0

You might be interested in
A monkey has a bit of a heavy for on the gas pedal. As soon as the light turns green the monkey pushes the gas pedal to the floo
Andrei [34K]

Answer:

s=6.86m/s^2

Explanation:

Hello,

In this case, considering that the acceleration is computed as follows:

a=\frac{v_{final}-v_{initial}}{t}

Whereas the final velocity is 28.82 m/s, the initial one is 0 m/s and the time is 4.2 s. Thus, the acceleration turns out:

a=\frac{28.82m/s-0m/s}{4.2s}\\ \\s=6.86m/s^2

Regards.

3 0
2 years ago
Hello i need help with this!!​
mr Goodwill [35]

Answer:

Yes

Explanation:

If lamp A burnt out there would still be a wire above it that connects lamp B and C to the power source

3 0
1 year ago
A 40-W lightbulb is 1.7 m from a screen. What is the intensity of light incident on the screen? Assume that a lightbulb emits ra
Sonja [21]

Answer:

Intensity, I=1.101\ W/m^2

Explanation:

Power of the light bulb, P  = 40 W

Distance from screen, r = 1.7 m

Let I is the intensity of light incident on the screen. The power acting per unit area is called the intensity of the light. Its formula is given by :

I=\dfrac{P}{A}

I=\dfrac{P}{4\pi r^2}

I=\dfrac{40\ W}{4\pi (1.7\ m)^2}

I=1.101\ W/m^2

So, the intensity of light is 1.101\ W/m^2.

6 0
3 years ago
Real springs have mass. How will the true period andfrequency
Ad libitum [116K]

Explanation:

An perfect mass less spring, attached at one end and with a free mass attached at the other end, will have a distinct frequency of oscillation depending on its constant spring and mass. On the other hand, a spring with mass along its length will not have a characteristic frequency of oscillation.

Alternatively, based on its spring constant and mass per length, it will now have a wave Speed. It would be possible to use all wavelengths and frequencies, as long as the component fλ= S, where S is the spring wave size. If that sounds like longitudinal waves, like solid sound waves.

4 0
3 years ago
A 2 column by 3 row table. Column 1 is titled Planet A with the following entries: Atmosphere is mostly carbon dioxide, Surface
Eddi Din [679]

Answer: earth

Explanation: isn’t earth the only plant with LIQUID water?

4 0
2 years ago
Other questions:
  • Can someone pls answer number 8 for me pls
    10·1 answer
  • Water bubbles up through a hot spring at yellowstone national park. What method of heat transfer is this?
    12·2 answers
  • Suppose you put in 100 j of work on a lever and get out 93 j of work. what is the efficiency of the lever and how much of the wo
    14·1 answer
  • The national high magnetic field laboratory holds the world record for creating the strongest magnetic field. for brief periods
    5·2 answers
  • The largest source of available freshwater on Earth is _____.
    6·2 answers
  • What do the key results indicate?
    6·2 answers
  • A plumb bob is hanging from the ceiling of a car. If the car moves with an acceleration a, what is the angle made by the string
    12·1 answer
  • What would be the effect of the uneven distribution of
    5·2 answers
  • Why food cook faster with salt water than cook with pure water​
    14·2 answers
  • 13. Determine the kinetic energy of a 2000g roller coaster car that is moving with a speed of 2m/s.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!