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erik [133]
3 years ago
15

The diameter of the moon is a little less than the distance across the United States. Please select the best answer from the cho

ices provided T F
Physics
2 answers:
dlinn [17]3 years ago
6 0

Answer:

true

Explanation:

The diameter of the Moon is 3474 km. The distance across the United States, from Florida to Washington, is 4509.382 km.

katrin2010 [14]3 years ago
5 0

It is true that the diameter of the moon is a little less than the distance across the United States.

Answer: Option A

<u>Explanation: </u>

Moon is the natural satellite of our Earth. It revolves around the Earth due to the gravitational force acting on the moon. The moon also has its own gravitational force. The gravitational force of moon is \frac{1}{6} t h of the gravitational force on Earth.

The mass of moon is 7.34 \times 10^{22} kg while the mass of the Earth is 5.972 \times 10^{24} kg. So the moon’s mass is very very less than that of Earth. So the diameter of moon is found as 3,472 km while the diameter of Earth is 12,742 km.

Thus the dimension of moon is \frac{1}{4} t h of the dimension of the Earth. Even the diameter of moon is little less than the distance across the United States as the distance across United States is 4509 km.

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Which health related components give you a normal or an above average classification?​
OlgaM077 [116]

answer:

cardiovascular endurance

muscular strenght

muscular endurance

body composition

flexibility

Explanation:

hope it helps(◍•ᴗ•◍)❤

3 0
3 years ago
In each cycle, a heat engine an input of 1940 J of heat and exhausts 1480 J of heat. What is the thermal efficiency?
AleksAgata [21]

Answer:

0.237 (23.7 %)

Explanation:

The thermal efficiency of an engine is given by:

\eta=\frac{W}{Q_{in}}

where

W is the useful work output of the engine

Q_{in} is the heat in input

Here we have:

Q_{in}=1940 J

and the work done is the total heat in input minus the heat exhausted:

W=1940 J - 1480 J=460 J

So, the efficiency is

\eta=\frac{460 J}{1940 J}=0.237 (23.7 %)

8 0
3 years ago
An Elephant is pulled by a group of clowns across a circus. The elephant has a mass of 1000kg and the clowns are pulling with a
ycow [4]

Answer:

Acceleration = 0.2m/s²

Explanation:

Given the following data;

Mass = 1000kg

Force = 200N

To find acceleration;

Force is given by the multiplication of mass and acceleration.

Mathematically, Force is;

F = ma

Where;

F represents force.

m represents the mass of an object.

a represents acceleration.

Making acceleration (a) the subject, we have;

Acceleration (a) = \frac{F}{m}

Substituting into the equation;

Acceleration (a) = \frac{200}{1000}

Acceleration = 0.2m/s²

3 0
3 years ago
Receiver maxima problem. When the receiver moves through one cycle, how many maxima of the standing wave pattern does the receiv
shusha [124]

Answer:

Two.

Explanation:

  • A standing wave or stationary wave are the type of wave in which it oscillates with time but the amplitude does not move.
  • One complete wave consists of two loops.
  • It means that when the receiver moves through one cycle, two maxima of standing wave pattern the receiver pass through.
8 0
3 years ago
You are bungee jumping from a bridge. Initially, while you are falling the slack bungee cord isn’t exerting any forces or torque
harina [27]

Answer:

he fall movement we see that both the force is different from zero, and the torque is different from zero.

When analyzing the statements the d is true

Explanation:

Let's pose the solution of this problem, to be able to analyze the firm affirmations.

When the person is falling, the weight acts on them all the time, initially the rope has no force, but at the moment it begins to lash it exerts a force towards the top that is proportional to the lengthening of the rope.

The equation for this part is

                 Fe - W = m a  

                 k x - mg = m a

As the axis of rotation is located at the top where they jump, there is a torque.

What is it

                Fe y - W y = I α

angular and linear acceleration are related

       a = α r

       Fe y - W y = I a / r

In the fall movement we see that both the force is different from zero, and the torque is different from zero.

When analyzing the statements the d is true

4 0
3 years ago
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