Field Theory Answers

Three wooden blocks of masses m1, m2, and m3 kg are placed in contact with each other on a frictionless table. A force of F Newtons is applied on the mass m3.

Draw a free body diagram for each mass showing all reactions forces (R) and acceleration (a) on the wooden blocks.

Write equations for each block

Determine the location where an object with mass mo when placed between the

moon and earth experiences a gravitational force from the moon equal to a third of the gravitational force from earth. The distance from the earth to moon is 384,400 km. The ratio of mases between moon and earth is 0.0123. The radii of moon and earth are 1738.1 km and 6378.1 km, respectively.

THE EFFICIENCY OF A CERTAIN MACHINE IS 80 WHAT WORK IS REQUIRED TO RAISE A BOX OF MASS 200KG A DISTANCE OF 6M USE G = 10M/S²

the car takes 3.6 s to travel from B to C. In the space below, draw a velocity-time graph to represent the motion of the car between A and C

a student eat a dinner containing 3.0 x 106J of energy. He wishes to do an equivalent amount of work in a near by gym by lifting a 60kg object.How many times

A uniform line of charge with length 20.0 cm is along the x-axis, with its midpoint at x = 0. Its charge per length is +4.80 nC/m. A small sphere with charge -2.00 C is located at x = 0, y = 5.00 cm. What are the magnitude and direction of the force that the charged sphere exerts on the line of charge?

 A uniform electric field exists in the region between two oppositely charged plane parallel plates. A proton is released from rest at the surface of the positively charged plate and strikes the surface of the opposite plate, 1.60 cm distant from the first, in a time interval of 3.20 x 10-6 s. 

(a) Find the magnitude of the electric field.

 (b) Find the speed of the proton when it strikes the negatively charged plate.

A uniform line of charge with length 20.0 cm is along the x-axis, with its midpoint at x = 0. Its charge per length is +4.80 nC/m. A small sphere with charge -2.00 C is located at x = 0, y = 5.00 cm. What are the magnitude and direction of the force that the charged sphere exerts on the line of charge?

A point charge of +3.5 μC is placed 0.800 m to the left of the second, identical point charge.

What is the magnitudes and directions of forces that each charge exerts on the other?

Which of the following six functions represent a travelling wave pulse whose shape does not change with time?

1. 2e^-5(x-300t)2
2. (2t-5x)³
3. 9x²-42xt+49t²
4. x²-49t²
5. sqrt[(3t-5x)²+5]
6. (5+2x-3t)/(5+2x+3t)