Answer:
From the figure,
The free-body diagrams for and are shown in the figures below. The only forces on the blocks are the upward tension and the downward gravitational forces and . Applying Newton’s second law, we obtain:
which can be solved to yield
Substituting the result back, we have
(a) With and , the acceleration becomes
(b) Similarly, the tension in the cord is
Answer:
1.- the lithosphere, asthenosphere, and mesosphere.
2.- They both described the oceanic type.
3.- Crust, as its depth is less than 100 kilometers
4.- High pressure
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Mass per unit volume i hope it helps
Gravity holds everything in the galaxy together.
Answer:
v = 2 m/s
Explanation:
The object moves 20 m in 10 s initially. Then it remains at rest for 20 s. It is required to find the average speed of the object.
Fro 10 s it covers 20 m. For that time, speed is :
For 20 s, it was at rest means distance covered is 0. So, speed is 0.
The average speed of the object is equal to the sum of speed for 10 s and for 20 s i.e.
v = 2 m/s + 0 = 2 m/s
So, the average speed of the object is 2 m/s.
