What kind of model is shown below? O A. A mathematical model
O B. An experimental model
O C. A computer model
D. A physical model

Many machines- including inclined planes such as ramps- increase the strength of the force put into the machine but decrease the distance over which the force is applied.

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.

What is the electric force acting between two charges of -0.0045 c and -0.0025 c that are 0.0060 m apart? use fe=kq1q2/r^2 and k = 9.00 x 10^9 n*m^2/c^2 a. 1.7 x 10^7 n b. -1.7 x 10^7 n c. -2.8 x 10^9 n d. 2.8 x 10^9 n