A 225 kg crate is pushed horizontally by an applied force of 710 N over a surface with a coefficient of friction of 0.200. Draw the free-body diagram of the situation and calculate the acceleration of the crate.
Known:
m =
Fapp =
u =
g = 9.8 m/s^2
Unknown:
a =?
Equation:
Fnet = ma
Fapp - u m g = ma

Aknife blade is a(n) a. lever b. screw c. wedge d. inclined plane

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

Apatient has a history of poor nutrition. he has skin rashes, bleeding gums, and a cut that hasn’t healed in a long time. what vitamin deficiency most likely caused this symptom?