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
Lynna [10]
3 years ago
13

A car traveling at 21 m/s starts to decelerate steadily. It comes to a complete stop in 13 seconds. What is its acceleration?

Physics
1 answer:
diamong [38]3 years ago
6 0

The formula for acceleration is the velocity times the inverse of time so it would be 21 times 1/13. So roughly 0.0769... is the acceleration(m/s^2).

You might be interested in
How to measure the external diameter of a sphere
DanielleElmas [232]
Sphere is that the circular objects in the two dimensional space (1) circle
(2) disk. Two dimensional space is a set of points and the distance of that point,The two points of Sphere that length and center.
Sphere can constructed as the named of surface form circle about any diameter. circle is the special type of the revolution replacing the circle,
sphere is the distance r is the radius of the ball and circle is the center of mathematical ball,as the center and the radius of the sphere is to respectively.
The ball and sphere has not be maintained mathematical references as a solid references. A sphere of any radius is centered at the number of zero.
4 0
3 years ago
Describe two experiments to determine the speed of propagation of a transverse wave on a rope. You have the following tools to u
AnnZ [28]

Answer:

#See solution for details.

Explanation:

1.

Tools:stopwatch, \ meter \ stick, \ mass \ measuring \ scale , \ force \ measuring  \ device.

Experiment \ 1:Calculate the speed of the wave using the time,t it takes to travel along the rope. Rope's length,L is measured using the meter stick.

-Attach one end of rope to a wall or post, shake from the unfixed end to generate a pulse. Measure the the time it takes for the pulse to reach the wall once it starts traveling using the stopwatch.

-Speed of the pulse can then be obtained as:

v=\frac{L}{t}

Experiment \ 2: Apply force of known value to the rope then use the following relation equation to find the speed of a pulse that travels on the rope.

v=\sqrt{\frac{F}{\mu}}\ ,\mu=\frac{m}{L}

-Use the measuring stick and measuring scale to determine L,m values of the rope then obtain \mu.

-Use the force measuring constant to determine F. These values can the be substituted in Experiment \ 1 to obtain v.

4 0
3 years ago
What is the lithosphere
hoa [83]

Answer:

the rigid outer part of the earth, consisting of the crust and upper mantle.

Explanation:

8 0
3 years ago
Read 2 more answers
What do you call an increase in the magnitude of velocity
Vlad1618 [11]

Any change in the magnitude or direction of velocity is "acceleration".

4 0
3 years ago
Which describes the correct energy conversion when a solar cell is used to light a street lamp?
Lady_Fox [76]
I think it's a solar power might seem strange or futuristic but it's already quite common place you might have a solar powered quartz watch on your wrist or solar powered pocket calculator
3 0
3 years ago
Read 2 more answers
Other questions:
  • Which Chinese man was leader of the National People's Party, called the Guomindang, in 1925?
    11·2 answers
  • A 56 kg astronaut stands on a bathroom scale inside a rotating circular space station. The radius of the space station is 250 m.
    9·1 answer
  • A fisherman's scale stretches 3.7 cm when a 3.5 kg fish hangs from it. (a) what is the spring constant? n/m (b) what will be the
    8·1 answer
  • An object has a charge of 4.5 c is it negative or positive
    15·2 answers
  • How to get a + b on a graph
    8·1 answer
  • A person could jump futher on ___ than on ____
    15·2 answers
  • PL-1) A spring that hangs vertically is 25 cm long when no weight is attached to its lower end. Steve adds 250 g of mass to the
    9·1 answer
  • At some instant, a particle traveling in a horizontal circular path of radius 7.90 m has a total acceleration with a magnitude o
    9·1 answer
  • What phase difference between two otherwise identical traveling waves, moving in the same direction along a stretched string, wi
    10·1 answer
  • An electron in the Thomson model of hydrogen
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!