Ball 1, with a mass of 20kg, is moving to the right at 20m/s. At what velocity should Ball 2, with a mass of 40kg, move so that they both come to a stand still upon collision?

Is a light bulb considered construction

Consider two blocks of copper. Block A contains 800 atoms and initially has a total of 20 quanta of energy. Block B contains 200 atoms and initially has 80 quanta of energy.

Why must you use temperature to specify how hot or cold something is?

What is the definition of Frame of reference? Is there an equation, if soo what is it?

The air inside a balloon exerts a force of 1.5 N on an area of 0.5 m2. What is the pressure inside the balloon? A. 0.5 N/m2 B. 3.0 N/m2 C. 2.5 N/m2 D. 1.5 N/m2

Question 11 1 pts Nuclear power plants rely on to generate power. O climate change O fusion Ofission O coal

Which of the following is not a characteristic that geologists use to identify minerals? A. Softness B. Color C. Streak D. Fracture

To practice Tactics Box 10.1 Calculating the work done by a constant force. To find the work done on an object by a force, begin with a visual overview and follow Tactics Box 10.1.

the color of the sun appears to be orange or yellow when looking from the earth but it really is red. true or false

Which of the following statements accurately describes the sign of the work done on the box by the force of the push? 1 - positive 2 - negative 3 - zore