0.01
11. a person walks 60 meters in 1 minute. then walks 30 meters in 2 minutes. what is their
average speed over the 3 minute walk?
a. 0.5 m/s
b. 1 m/s
c. 2 m/s
d. 5 m/s
e. 50 mls

How much work is done lifting a 9.10 kg box straight up onto a shelf that is 1.80 m high?

Photoelectrons with a maximum speed of 6.50 x 107 m/s are ejected from a surface in the presence of light with a frequency of 6.75 x 1014hz. if the mass of an electron is 9.10 x 10-31 kg, calculate in joules the maximum kinetic energy of a single electron. 3.84 x 10-15 j 1.92 x 10-15 j 5.92 x 10-23 j 3.07 x 10-16 j

Amajor difference radio waves, visible light, and gamma rays is the of the photons, which results in different photon frequencies and wavelengths