Anucleus. x has atomic nimber 3. if the binding energy of x is 2.15×10-11, calculate ) the number of neutrons in ) the total number of neutrons and protons

Acompound machine is also called a machine. a. force b. simple c. complex d. directional

Asmall 12.00g plastic ball is suspended by a string in a uniform, horizontal electric field with a magnitude of 10^3 n/c. if the ball is in equilibrium when the string makes a 30 ° angle with the vertical, what is the net charge on the ball?

In the illustration, which two simple machines are being used to enable the student to reach the door? a. inclined plane and pulley b lever and wheel-and-axle c pulley and lever d wheel-and axle and inclined plane