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
PolarNik [594]
2 years ago
15

An Olympic runner completes the 200-meter sprint in 23 seconds. What is the runner’s average speed? (Round your answer to the

nearest tenth of a meter per second. ) 0. 9 m/s 1. 2 m/s 8. 7 m/s 10. 1 m/s.
Physics
1 answer:
Amanda [17]2 years ago
3 0

The average speed of the runner is 8.7m/s.

Therefore, Option C) 8.7m/s is the correct answer.

Given the data in the question;

Distance covered; d = 200m

Time taken; t = 23s

Average speed; s = \ ?

Speed is the rate at which an object covers a certain distance. It is expressed as:

s = \frac{d}{t}

Where s is speed, d is distance and t is time taken.

We substitute our given distance into the equation

s = \frac{200m}{23s} \\\\s = 8.6956m/s\\\\s = 8.7m/s

The average speed of the runner is 8.7m/s

Therefore, Option C) 8.7m/s is the correct answer.

Learn more: brainly.com/question/21503615

You might be interested in
What does 'payback time' mean?
dimaraw [331]

Payback time is when someone has to take the consequences of what they have done in the past. You can use this expression to talk about good or bad consequences.

4 0
4 years ago
Read 2 more answers
A triangle has two sides of length 10 cm and 14 cm. what can you say about the length of the third side?
Anton [14]

A side of any triangle is less than the sum of the other two sides so the third side must be less than 24cm.

<h3>What is a triangle?</h3>

A triangle is a 3-sided shape that is occasionally referred to as a triangle. There are three sides and three angles in every triangle, some of which may be the same.

The sum of all three angles inside a triangle will be 180° and the area of a triangle is given as (1/2) × base × height.

There are many types of triangles such that right-angle triangles, equilateral triangles, and much more.

In any triangle, the sum of two sides is always greater than the third side.

If the third side is equal to the sum of two sides then it will be a straight line rather than a triangle.

It means 10 + 14 > third side

24 cm > third side

Hence "A side of any triangle is less than the sum of the other two sides so the third side must be less than 24cm".

For more about triangles,

brainly.com/question/2773823

#SPJ4

3 0
1 year ago
Let's apply Snell's law to the refraction of light across a water–air interface. Suppose you kneel beside the fishpond in your b
Nataliya [291]

Answer:

The angle of refraction is 41.68°.

Explanation:

The refractive index for water is n_2 = 1.333, and for air n_1 = 1.00: the angle of light with the normal is 90^o-60^o = 30^o; therefore Snell's law gives

n_1sin(\theta_1)= n_2sin(\theta_2)

1.00*sin(\theta_1) = 1.33 sin(30^o)

sin (\theta_1) = \dfrac{1.33sin(30^o)}{1.00}

sin (\theta_1) = 0.665

\theta _1 = sin^{-1}(0.665)

\boxed{\theta_1 = 41.68^o}

4 0
3 years ago
What is the atmospheric pressure of the U.S.
rusak2 [61]
When you say atmospheric pressure it is a standard on all places on earth. The value of standard atmospheric pressure is 1 Bar approximately or 14.7 lb per square inch. This pressure is an attribute of free molecules on the air which is not bound the accumulation of the pressure of this in average is the atmospheric pressure.
4 0
3 years ago
A 1,000 kg boulder rolls 75 m down a mountain doing 735,000 J of work. What force was acting on the boulder?
Deffense [45]
The force acting on the boulder bringing it down the mountain? Would be gravity. Not sure about any of the multiple choice options you have
6 0
3 years ago
Read 2 more answers
Other questions:
  • A 15,000 kg rocket traveling at +230 m/s turns on its engines. Over a 6.0 s period it burns 1,000 kg of fuel. An observer on the
    7·2 answers
  • Which statement about cellulose is true?
    10·2 answers
  • Suppose that on a routine trip around the galaxy, your dog puts his head out of the spacecraft window (as dogs often do). The so
    7·1 answer
  • How did Einstein’s and Newton’s theories differ in terms of explaining the cause of gravity?
    15·2 answers
  • What is the kinetic energy of a 1.00g hailstone falling at 8.50m/s
    13·1 answer
  • Two blocks, stacked one on top of the other, slide on a frictionless horizontal surface. The surface between the two blocks is r
    13·1 answer
  • What exerts a centripetal force on a person running around a curve?
    9·1 answer
  • As radiation is passed through the electrical field (above), it is observed that this radiation does not change direction as it
    14·2 answers
  • ANSWER THIS! Which of these statements about the Sun is the result of its closeness to Earth? A) It is the only star with a grav
    10·1 answer
  • What is unit? write down the unit of mass temperature power and density​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!