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
padilas [110]
3 years ago
5

How wide is the moon

Physics
2 answers:
goldfiish [28.3K]3 years ago
7 0

The moon is very nearly a sphere (ball shape).  We usually talk
about the "diameter" of a sphere, not its width. 

The moon's diameter is about  2,159 miles or 3,475 kilometers. 
That's about  27% (a little over a quarter) of the Earth's diameter.

lapo4ka [179]3 years ago
6 0
14.6 million square miles (38 square kilometers
You might be interested in
We wrap a light, nonstretching cable around a 8.00 kg solid cylinder with diameter of 30.0 cm. The cylinder rotates with negligi
antoniya [11.8K]

Answer:

h = 16.67m

Explanation:

If the kinetic energy of the cylinder is 510J:

Kc=510=1/2*Ic*\omega c^2

\omega c=\sqrt{510*2/Ic}

Where the inertia is given by:

Ic=1/2*m_c*R_c^2=1/2*(8)*(0.15)^2=0.0225kg.m^2

Replacing this value:

\omega c=106.46rad/s

Speed of the block will therefore be:

V_b=\omega_c*R_c=106.46*0.15=15.969m/s

By conservation of energy:

Eo = Ef

Eo = 0

Ef = 510+1/2*m_b*V_b^2-m_b*g*h

So,

0 = 510+1/2*m_b*V_b^2-m_b*g*h

Solving for h we get:

h=16.67m

3 0
3 years ago
Help with velocity math pls help asap
pychu [463]
2 is the answer have a nice day <3
5 0
2 years ago
How could you test the hypothesis that elephants interpreted the ground signal as being farther away than the air signal?
bekas [8.4K]

Answer:

One way to test the hypothesis is to create two waves, one in the air and one on the ground at the same time. One of them for the elephant to get closer and another for the elephants to move away. Observe the reaction of the animal and with this we know which sound came first.

Explanation:

This hypothesis is based on the fact that the speed of sound in air is v = 343 m / s with a small variation with temperature.

The speed of sound in solid soil is an average of the speed of its constituent media, giving values ​​between

 wood      3900 m / s

 concrete 4000 m / s

 fabrics     1540 m / s

 earth       5000 m / s wave S

 ground    7000 m / s P wave

 

we can see that the speed on solid earth is an order of magnitude greater than in air.

One way to test the hypothesis is to create two waves, one in the air and one on the ground at the same time. One of them for the elephant to get closer and another for the elephants to move away. Observe the reaction of the animal and with this we know which sound came first.

From the initial information, the wave going through the ground should arrive first.

3 0
3 years ago
Which bulbs would be on and or off if :
insens350 [35]
Bulbs c and b would still be screwed in if they were in to begin with and bulbs A, D, and E. would be unscrewed
6 0
3 years ago
Read 2 more answers
Rotation of the lever OA is controlled by the motion of the contacting circular disk of radius r = 300 mm whose center is given
sergiy2304 [10]

Answer:

The angular velocity is

5.64rad/s

Explanation:

This problem bothers on curvilinear motion

The angular velocity is defined as the rate of change of angular displacement it is expressed in rad/s

We know that the velocity v is given as

v= ωr

Where ω is the angular velocity

r is 300mm to meter = 0.3m

the radius of the circle

described by the level

v=1.64m/s

Making ω subject of the formula and solving we have

ω=v/r

ω=1.64/0.3

ω=5.46 rad/s

3 0
3 years ago
Other questions:
  • Describe how evaporation relates to heat regulation in your body
    15·1 answer
  • Using component notation, enter the vector B⃗ B→B_vec in the answer box. Enter your answer as a pair of vector components, separ
    6·1 answer
  • A negatively charged particle -q is placed at the center of a uniformly charged ring, where the ring has a total positive charge
    9·1 answer
  • Explain how a generator creates electricity.
    11·2 answers
  • Nancy needs to do a scientific investigation for her class. She is interested in pottery, plants, and basketball. Which of the f
    7·2 answers
  • Will get Brainlest 5 star and heart looking for someone who knows 7 grd science flvs work dm and friend
    5·1 answer
  • Where does internal radiation come from?
    5·1 answer
  • Juan amd kym have four samples of matter. They are observing and describing the properties of these samples. Which property will
    5·1 answer
  • Why was bowling one of the first racially integrated sports
    9·1 answer
  • Two cars are traveling in the same direction down a highway at 65 miles per hour. What is the relative velocity of the second ca
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!