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
klemol [59]
4 years ago
15

A circle has a radius of 13m Find the length of the arc intercepted by a central angle of .9 radians. Do not round any intermedi

ate computations, and round your answer to the nearest tenth.
Physics
1 answer:
Oksi-84 [34.3K]4 years ago
5 0

Answer:

11.7 m

Explanation:

The radius of the circle is 13 m.

The central angle of the arc is 0.9 radians

The length of an arc is given as:

L = r θ

where θ = central angle in radians = 0.9

=> L = 0.9 * 13 = 11.7 m

You might be interested in
A 6.2 kg cannonball is fires from a 280 kg cannon. The cannon recoils with a velocity of 4.9 m/s. What is the velocity of the ca
lara [203]

Answer:

666 bc its on its way to my house

Explanation:

3 0
3 years ago
What causes competition among organisms?
dimaraw [331]
Both organisms attempt to use the same limited sources
5 0
3 years ago
A coin of mass 0.05 kg is placed at a radius r= 0.1m meter on a horizontal turntable which is turning uniformly at a rate of one
Vsevolod [243]

Answer:F=0.0882kg

Explanation:

The period it takes to make one revolution is 1.5 seconds / revolutions,

v = r * (change in angle / change in time)

the change in angle is 2pi, for one whole revolution. the time is 1.5 second per revolution, and the radius is 0.1.

v = (2 * pi * 0.1 cm * / 1.5second

v = 0.42m/s

a=v^2/r

a=0.42^2 /0.1 =1.764m/s2

F=ma

F=0.05*1.764

F=0.0882kg

4 0
3 years ago
Please answer the following question.
Elina [12.6K]

Doppler Shift lets you see a star A. Move back and forth

<h3>What is Doppler Shift?</h3>

This refers to the frequency change of a wave in relation to an observer as it moves back and forth.

Hence, we can see that the thing which astronomers can learn from the Radial Velocity Method is D. Period of orbit and minimum mass of a planet as it measures the wavelengths of absorption lines in its spectrum.

Read more about doppler shift here:

brainly.com/question/4052291

#SPJ1

7 0
2 years ago
A car is stopped at a red light. When the light turns green, the car accelerates until it reaches a final velocity of 45 m/s. It
tigry1 [53]

Answer:

270 m

Explanation:

We can find the distance travelled by the car by using the following suvat equation:

s=(\frac{u+v}{2})t

where

s is the distance travelled

u is the initial velocity

v is the final velocity

t is the time

For the car in this problem,

u = 0

v = 45 m/s

t = 12 s

Substituting into the equation, we find:

s=(\frac{0+45}{2})(12)=270 m

8 0
3 years ago
Other questions:
  • As steam is slowly injected into a turbine, the angular acceleration of the rotor is observed to increase linearly with the time
    15·1 answer
  • The diagram shows a pencil in a glass of water.
    7·2 answers
  • How many elective courses does a college student typically have to take to earn a bachelors degree?
    13·2 answers
  • Explain the difference in polarity between co2 and h2o by referring to the polarity of the bonds and the shape of the molecules
    8·2 answers
  • A uniform plank is 8-m long and weighs 99 N. It is balanced on a sawhorse at its center. An additional 182 N weight is now place
    14·1 answer
  • Which best describes what Einstein’s theories tried to explain?
    15·2 answers
  • Using Newton’s First Law, predict what will happen when a car traveling on an icy road approaches a sharp turn.
    8·2 answers
  • Imagine two 2.0 g bags of protons, one at the earth's north pole and the other at the south pole. part a how many protons are in
    9·1 answer
  • suppose that you had an ohmmeter and a mystery component that could be either an inductor or a capacitor. How could you use the
    7·1 answer
  • Excess use of fossil fuel causes energy crisis.​
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!