Please Help me 2. A ball is thrown horizontally from a height of 1m and lands 5m away. What formula
would you use to calculate the flight time of the ball?. Single choice.
A. Vx = d.
B. Vyf = Vyt + at
C. Vyp^2 = Vyx^2 +2ady
D. dy = Vyit+{(a)t

Suppose a force of 60 n is required to stretch and hold a spring 0.1 m from its equilibrium position. a. assuming the spring obeys hooke's law, find the spring constant k. b. how much work is required to compress the spring 0.5 m from its equilibrium position? c. how much work is required to stretch the spring 0.6 m from its equilibrium position? d. how much additional work is required to stretch the spring 0.1 m if it has already been stretched 0.1 m from its equilibrium? a. kequals 600

To fully describe the photoelectric effect, scientists must consider which of the following to be quantized? o a. both light and matter o b. matter only o c. light only o d. neither light nor matter

A15 ohm resistor and a 25 ohm resistor are connected in parallel to a 60 volt battery. what is the power used by each device