This is a physical process which takes place when rocks are broken down without any change in their chemical nature. the rocks are broken apart by physical force,

Two objects of the same mass travel in opposite directions along a horizontal surface. Object X has a speed of 5ms and object Y has a speed of 5ms, as shown in the figure. After a period of time, object X collides with object Y.

An object displaces 652ml of water. What is the volume of the object

Why does earth orbit the sun instead of the moon? A) the sun is larger than the moon B) The sun is brighter than the moon C) The sun is farther away than the moon D) The sun has more mass than the moon

The net force acting on an stationary object is zero. Which best describes the object's velocity? A. The velocity is zero. B. The velocity is decreasing. C. The velocity is increasing. D. The velocity is constant, but not zero.

How many calories are required to raise the temperature of a 150. g sample of gold from 25 °C to 175 °C? The specific heat of gold is 0.0308 cal/g °C.

Choose the most acidic substance in the group. lemon juice, pH = 2.25 orange juice, pH = 3.75 milk, pH = 6.6 seawater, pH = 8

What is the relative size and composition of the universe, a galaxy, and a solar system? Is the universe endless?

A bumblebee has a mass of 0.22 g. If its speed is 11.50 m/s, calculate its kinetic energy K E.

Momentum is distancemassforcetime times velocity.

A block accelerates at 3.7 m/s2 down a plane inclined at an angle 27.0. Find μk between the block and the in- clined plane. The acceleration of gravity is 9.81 m/s2.