In a bizarre but harmless accident, a watermelon fell from the top of the Eiffel Tower. How fast was the watermelon traveling when it hit the ground 7.80 seconds after falling?

Why does it take a longer distance to stop a ping pong ball than a bowling ball with the same momentum?

When a potential difference of 13 V is placed across a resistor, the current in the resistor is 1.4 a. What is the resistance of the resistor?

What does the negative sign in F = - kx mean?

When potential energy and kinetic energy are added, it creates: a. chemical energy c. mechanical energy b. thermal energy d. electromagnetic energy?

What is the name of the distance that is 10^3 larger than a meter

Heat that is transferred by the movement of currents within a fluid is called?

5. What is the percent composition of sulfur in H2SO4? A. 32.7% B. 65.2% C. 98.1% D. 2.1%

A 0.8kg object accelerate at a rate of4 m/s2. What is the net force acting on a object

Which of the following is the best definition of an isotope? A. elements of the same kind with different numbers of neutrons B. elements of the same kind that have lost electrons C. elements of the same kind that have different electrical charges

Two cars approach each other; both cars are moving westward, one at 85 km/h, the other at 54 km/h. what is the magnitude of the velocity of the first car relative to (in the frame of reference of) the second car? answer in units of km/h.