The net forward force on the propeller of a 3200 g model airplane is 7.0 N. What is the acceleration of the airplane?
0.46 m/s^2
2.2 m/s^2
0.0022 m/s^2
22000 m/s^2

The 5-kg cylinder is initially at rest when it is placed in contact with the wall b and the rotor at a. if the rotor always maintains a constant clockwise angular velocity v = 6 rad> s, determine the initial angular acceleration of the cylinder. the coefficient of kinetic friction at the contacting surfaces b and c is mk = 0.2.

Which of the following elements is in the same period as phosphorus? a. carbon c. nitrogen b. magnesium d. oxygen select the best answer from the choices provided a b c d

An isotope undergoes radioactive decay by emitting radiation that has a –1 charge. what other characteristic does the radiation have?