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ankoles [38]
3 years ago
6

If the moon is new as seen from the earth, what phase would the earth be in as seen by an astronaut on the moon? explain your re

asoning.
Physics
1 answer:
IrinaK [193]3 years ago
8 0
<span>The earth would be fully visible or full, because it is always seen as an opposite phase than what would normally be seen when we look at the moon. For instance, if we see the moon as almost full then from the moon the earth would appear as a slim crescent.</span>
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The Amazon River is in Europe. True or False
exis [7]

False, the Amazon River is in South America. It's in the countries Brazil, Colombia, and Peru.

7 0
3 years ago
If humans originated in Africa and migrated to other parts of the world some time would be required for this to occur.At the mod
Thepotemich [5.8K]

Answer:

100 years

Explanation:

10,000 divided by 100 equals 100

7 0
3 years ago
A truck is using a hook to tow a car whose mass is one quarter that of the truck. If the force exerted by the truck on the car i
strojnjashka [21]

Answer:

The car exerts a force on the truck which  is c.)  6000 N.

Explanation:

If the truck exerts a force of 6000 N on the car then according to Newton's Third Law of Motion that every action has an equal and opposite reaction we can say that the force exerted by the car on the truck is 6000 N.

The only reason the truck is able to move the car is because of the frictional forces. That is frictional force of the trucks tires on the surface of the road and the frictional forces of the cars tire on the surface of the road, and since these forces are not equal this therefore gives rise to motion.

7 0
3 years ago
Which materials produce greater or fewer vibrations on a roller coaster?
mixer [17]
Steel materials produce less vibrations whilst less dense and more malleable parts produce more vibrations, e.g. the wooden part of the coaster itself.
3 0
3 years ago
An airplane is flying at a speed of 45 m/s when it drops a 40 kg food package to the Polar exploration team. If the plane drops
Alina [70]

To solve this problem we will apply the concepts related to energy conservation, so the potential energy in the package must be equivalent to its kinetic energy. From there we will find the speed of the package in the vertical component. The horizontal component is given, as it is the same as the one the plane is traveling to. Vectorially we will end up finding its magnitude. So,

PE = KE

mgh = \frac{1}{2}mv^2

Here,

m = Mass

g = Gravity

h = Height

v = Velocity

Rearranging to find the velocity

v = \sqrt{2gh}

Replacing,

v = \sqrt{2(9.8)(120)}

v = 48.49m/s

Using the vector properties the magnitude of the velocity vector would be given by,

|V| = \sqrt{v_x^2+v_y^2}

|V| = \sqrt{45^2+48.42^2}

|V| = 66.2m/s

Therefore the package is moving to 66.2m/s

3 0
3 years ago
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