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Q. At each point on the surface of the cube the electric field is parallel to the z axis. The length of each edge of the cube is 3.9 m. On the top face of the cube the electric field is in the negative z direction and has a magnitude of 43 N/C magnitude. On the bottom face of the cube the field is in the positive z direction and has a magnitude of 19 N/C. Determine the net charge (in nC) contained within the cube.
Q. A lighthouse that rises 49 {rm ft} above the surface of the water sits on a rocky cliff that extends 19 {rm ft} from its base. A sailor on the deck of a ship sights the top of the lighthouse at an angle of 30.0 above the horizontal.
If the sailor's eye level is 14 {rm ft} above the water, how far is the ship from the rocks?
Illustrate the force vectors with their tails at the origin of coordinate system. The orientation of your vectors will be graded. The exact lengths of your vectors will not be graded but relative length of one to the other will be graded.
A 1110 N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A 1960 N crate hangs from far end of beam.
Make a 10 to12 slide powerpoint presentation on behaviourism and social-learning theory. Include speaker notes and graphics, limit text to fie lines, and use approximately five words per bulleted item.
If the football has the mass of .420 kg and the time of contact with the ball is .014 s, what is the force exerted by the ball on a kicker's foot.
How far south of his starting point will he reach the opposite bank.
In photo like the Hubble Deep Field, we see galaxies in many different stages of their lives. In general, which galaxies are seen in the earliest (youngest) stages of their lives.
A person who weighs 68 kg steps onto a spring scale in the bathroom, and spring compresses by 0.79cm. (a) what is the spring constant? (b) What is the weight of another person who compresses the spring by 0.34cm.
What is acceleration of the elevator
Two long, parallel conductors carry currents I1 = 3.10 A and I2 = 5.10 A, both directed into the plane of the computer screen. Find out the magnitude and direction of the resultant magnetic field at a point midway between the wires. (b) Find out the ..
Two point charges, Q_1 = -6.1 mu C and Q_2 = 2.0 mu C, are situated between two oppositely charged parallel plates. The two charges are separated by a distance of x = 0.30 m. suppose that the electric field produced by the charged plates is unifor..
The concepts for finding the change in length of a rod.
Besides the gravitational force, a 3.40-kg object is subjected to one other constant force. The object starts from rest and in 1.20 s experiences a displacement of (5.50 - 3.30) m, where the direction of is the upward vertical direction. find the ..
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