How much electrical energy is used by a 75 W laptop that is operating for 12

minutes?

A cat with a mass of 4.50 kilograms sits on a ledge 0.800 meters above the ground. If it jumps to the ground, how much kinetic energy will it have just as it reaches the ground? A, 35.3 J B, 3.60 J C, 0.350 J D, cannot be determined

Consider equal volumes (say 1 l of a given substance in the solid, liquid, and gas phases. arrange them in order of decreasing mass based on the trend for the average substance.

Which of the following is not a constant or control for this experiment? a. type of plant b. the amount of soil c. the amount of water d. the amount of time in sun

When resistance force is increased on a lever which of the following happens to the effort force?

Which of the following means an object is speeding up? A. It's velocity is decreasing B. It's velocity is increasing C. It's acceleration is increasing D. It's acceleration is decreasing

Consider the Sun and Earth as a single system. How does the law of conservation of energy apply to this system? A) The energy from the Sun that reaches Earth is destroyed by Earth.

Based on the law of conservation of energy, which statement is false Energy is lost when machines don't work right. We can't add more energy to the universe. We can't destroy energy that exists in the universe.

A 120-g rubber ball is thrown with a speed of 10 m/s at an oncoming 900-kg car which is approaching at 30 m/s, and undergoes a one-dimensional elastic collision with the car.

Name two index fossils. Why are these fossils important to the practice of relative aging?

The equation for water is h2 o2 → h2o. to balance the equation, which coefficient should be placed in front of h2 and h2o?