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hammer [34]
4 years ago
9

Why do planetary scientists hypothesize that the moon formed with a molten surface

Physics
1 answer:
Verdich [7]4 years ago
5 0

The oldest lunar rock samples are approximately 4.4 billion years old and composed of anorthosite, a mineral that crystallizes and rises to the top of a lava ocean.

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Increasing the mass attached to a spring will increase its vibrational period.
iren2701 [21]
Increasing the mass attached to a spring will increase it's vibrational period - this is true. Imagine placing an elephant at the end of a bungee cord vs an apple, the apple will recoil faster than the elephant.
8 0
3 years ago
A 5.0-kg object is pulled along a horizontal surface at a constant speed by a 15-n force acting 20° above the horizontal. How mu
puteri [66]

Answer:

84.6 J

Explanation:

The work done by the force is given by

W=Fd cos \theta

where

W is the work done

F = 15 N is the force applied

d = 6.0 m is the displacement

\theta=20^{\circ} is the angle between the force's direction and the displacement

Substituting the numbers into the equation, we find

W=(15 N)(6.0 m)cos 20^{\circ} =84.6 J

3 0
3 years ago
Food chains are made up of many_____________. HELP ASAP!!!!!
Mashcka [7]
Hello!

Possible answer could be Organisms

There are a lot of Organisms in the overall food chain.

Hope this helped!
4 0
3 years ago
Read 2 more answers
If a net force is greater than 0 Newtons, what is the force?
goldenfox [79]

Answer:disequilibrium

Explanation:

When the net force is not zero it is called disequilibrium

5 0
4 years ago
What 2 environments once existed where the Grand Canyon is located today?
patriot [66]

The entire park area is considered to be a semi-arid desert, but distinct habitats are located at different elevations along the 8,000-foot elevation gradient. Near the Colorado River, riparian vegetation and sandy beaches prevail.

5 0
3 years ago
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