True or False: Cooler objects always have more thermal energy than warmer objects.

A 11-kg dog jumps up in the air to catch a ball. The dog's center of mass is normally 0.20 m above the ground, and he is 0.50 m long. The lowest he can get his center of mass is 0.

Which of the following is associated with fusion but not fission? A. Radiation B. Radioactive waste C. Sunlight

by scale drawing, find the resultant of vectors 70N inclined at100N and direction of the resultant 100N

Which gas is found in the greatest abundance in the modern atmosphere? A. Nitrogen B. Hydrogen C. Oxygen D. Helium

What is a consequence of the second law of thermodynamics? - Activation energy from the environment is required for every energy transfer. - Energy cannot be created or destroyed but it can be transferred.

Why do the densities of most substances decrease with an increase in temperature?

Consider two planets in space that gravitationally attract each other if the mass of one of them stays the same and the mass of the other is doubled AND the distance between them is doubled, then the force between them changes by what factor? A.

David delivers meals to elderly people once a week. He uses a cart to move the meals. The cart has four smooth wheels. Which type of friction acts between the cart wheels and the sidewalk? A. sliding friction B. rolling friction C. fluid friction D.

Current flows through a resistor; (a) with no direction since it is not a vector (b) from any potential to any different potential (c) from high potential to low potential (d) from low potential to high potential (e) cannot be determined

A concave mirror has a focal length of 11 cm. What is its radius of curvature?