Electrical energy is transformed into mechanical energy when an electric current is used to move an object.

A 328-kg car moving at 19.1 m/s in the + x direction hits from behind a second car moving at 13.0 m/s in the same direction. If the second car has a mass of 790 kg and a speed of 15.

How is the energy in photons used in the photosynthetic process?

Why does water have a high surface tension? Hydrogen bonding keeps water molecules close together. Water is a liquid at room temperature. Water molecules contain 18 electrons. The lengths of the bonds in water molecules can change.

Which of the following is a displacement? a. 5 m/s c. - 0.7 m/s2 b. 10 ft d. 3 blocks east

A patient comes in and tells you that he has arthritis and needs Cerebyx. What do you do? A. You know that Cerebyx and Celebrex are similar, but you assume that the patient knows what drug he needs. B.

A person gives a shopping cart an initial push along a horizontal floor to get it moving, and then lets go. The cart travels forward along the floor, gradually slowing as it moves.

A driver, traveling at 22.0 m/s, slows down her 2.00 x 103 kg car to stop for a red light. What work is done by the friction force against the wheels?

If the masses of an object increase and their distance from each other stays the same the force of gravity decreases increases stays the same increases then decreases

What is Avogadro's number? A. 5.002 Ã - 1020 B. 2.3 Ã - 1021 C. 6.02 Ã - 1013 D. 6.02 Ã - 1023

Mathew, a farmer, cultivates monocultures of wheat. What negative effect will monoculture farming have on Mathew's land? A. crop productivity will decrease B. greenhouse gases will generated C. nutrients will not be recycled back into the soil D.