Let s = rate of rotation
<span>Let r = radius of earth = 6,400km </span>
<span>Then solving (s^2) r = g will give the desired rate, from which length of day is inferred. </span>
<span>People would not be thrown off. They would simply move eastward in a straight line while the curved surface of earth fell away from beneath them.</span>
D. The table pushes up on the vase with the same amount of force as gravity pulling it down.
Answer:
i think answer should be C
The roughness of the surface, the mass of the object, and the area of contact.
Answer:
Explanation:
ratio of the forces is equal to the ratio of the surface areas
which is another way of saying the pressure is constant in the system
2000(9.8) / 500 = A / 10
A = 2000(9.8)(10) / 500 = 392 cm²
