A 2 kg watermelon is dropped from a 4 m tall roof. How fast will the watermelon be moving as it strikes the ground below?

Which of the following is an example of a force? A. push B. pull C. inertia D. both A and B E. all of the above

What is the most common source of energy for surface currents?

To find the number of neutrons in an atom, you would subtract A.) mass number from atomic number B.) atomic number from mass number C.) atomic number from electron number D.) isotope number from atomic number

Kinetic energy is dependent on which of the following? A. mass only B. velocity only C. temperature only D. mass and velocity

A circular metal loop is kept entirely within a magnetic field, but moved to a region of higher field strength while not rotated. What could you do to its diameter to prevent an induced current in it? Explain.

A projectile is launched over a horizontal surface in such a manner that its maximum height is 3/5 of its horizontal range. Determine the launch angle.

Two identical capacitors are arranged in a circuit. What is the ratio of the equivalent capacitance of the circuit when the capacitors are in series to that when they are in parallel?

A car's position in relation to time is plotted on the graph. What is the car's average velocity for segment C? A) - 4 m/s B) - 0.25 m/s C) 0.25 m/s D) 4 m/s

What percent of my Iodine-131 sample will be left after 7 half-lives?

A 58.0 kg snow skier is on the top of 351 m high hill. After she has gone down a vertical distance of 142 m, what is her mechanical energy? Explain your answer (CER) !