Which phenomenon generates electric current?

A black body radiation

B ultraviolet catastrophe

C emission spectra

D photoelectric effect

A 5.0 kg bowling ball is rolling down the lane at 4.0 m/s. What is the kinetic energy of the bowling ball? a. 40 J b. 50 J c. 80 J d. 100 J

Explain which property of sound waves allows you to hear someone laughing or talking from another room.

Centrifugal force increases with

As you walk to class with a constant speed of 1.60 m/s, you are moving in a direction that is 15.0° north of east. How long does it take you to move (a) 20.0 m east or (b) 30.0 m north?

With what speed do the electrons strike the screen? Hint: The kinetic energy of an electron which has been accelerated through a potential difference of 1 V has a kinetic energy equal to 1 eV.

In which medium would light travel the fastest? Question 21 options: a. across a room b. in a swimming pool c. through outer space d. through a railroad track

A 0.60 Kilo gram basketball poses on the rim of a basketball hoop that is 3.0 m high find the potential energy of the ball there (use G=10 N/KG.)

2. What was the role of women as industry increased? A. They gained the vote, B. They became industry leaders, e. They led the household D. They can for government office,

A 26-g steel-jacketed bullet is fired with a velocity of 630 m/s toward a steel plate and ricochets along path CD with a velocity 500 m/s.

A small boat is carrying four people across a river. Without any paddling, the boat moves downstream at a steady speed of 5 m/s. If the average weight of the four people is 60 kg, then what is the speed of the boat after one person gets?