A point charge of -1.0

A magnetic field of 0.080 TT is in the y-direction. The velocity of wire segment SS has a magnitude of 78 m/sm/s and components of 18 m/sm/s in the x-direction, 24 m/sm/s in the y-direction, and 72 m/sm/s in the z-direction. The segment has length 0.50 mm and is parallel to the z-axis as it moves.

Part A

Find the motional emf induced between the ends of the segment.

Express your answer with the appropriate units.

Part B

What would the motional emf be if the wire segment was parallel to the y-axis?

Express your answer with the appropriate units.

Please answer the following two questions:

3) Two cylindrical copper wires with a radius of 39 cm are connected to a battery and then they are connected across an incandescent light bulb and the light bulb turns on and is some brightness. If you took the same battery and connected coppers two wires which were a factor of 6 times longer than the first two wires to the same lightbulb so that the lightbulb was the exact same brightness as the first wires (it's not dimmer or brighter), what must be the radius of the second wires in cm?

4) Electricity is actually a very cheap form of energy. Suppose the cost of energy is 17.5 cents/kwh. If all the electrical energy used in purchasing $1 of electricity were converted to potential energy of raising 30,000 kg truck, how high above the ground would the truck be raised in m?

1.The space shuttle is in a 300km -high circular orbit. It needs to reach a 640km -high circular orbit to catch the Hubble Space Telescope for repairs. The shuttle's mass is 8.00

There are two point charges. One has a charge q1 = 1nC and is located at the point (1;2). The other has a charge q2 = 10 nC and is located at the point (7;-6).

A) What is the magnitude and the direction of the Coulomb force acting on the charge q1?

B) Where should the third charge be located in order to have zero net force acting on each charge? What is its magnitude?

Two charges are set on the x-axis 15.5 cm away from each other. The charges are -7.70 nC and 20.4 nC. Calculate the electric potential at the point on the x-axis where the electric field due to these two charges is zero.

You are throwing for a three pointer. The ball leaves your hand with a velocity of 9.4 m/s at an angle of 60 degrees with the horizon. You score from a horizontal distance of 7 m. The height of the basket is 3.5 m. (Ignore air-resistance)

a) Draw a free body diagram of the ball.

b) Find the position and velocity of the ball as a function of time

c) At what height was the ball released?

d) What is the velocity in the vertical direction as the ball hits the goal?

1. If a circuit consists of a battery connected to multiple resistors, and these resistors are connected in series, what MUST be the same across each resistor?

   	A.	Voltage
   	B.	Current
   	C.	Resistance
   	D.	Power
   	E.	None of the above

QUESTION 2

1. If a circuit consists of a battery connected to multiple resistors, and these resistors are connected in parallel, what MUST be the same across each resistor?

   	A.	Voltage
   	B.	Current
   	C.	Resistance
   	D.	Power
   	E.	None of the above

QUESTION 3

1. What will happen to a circuit whenever you add more resistors into it?

   	A.	The total current in the circuit increases
   	B.	The total current in the circuit decreases
   	C.	The total power of the circuit increases
   	D.	The total power of the circuit decreases
   	E.	It depends on how the resistors are connected

QUESTION 4

1. The "north pole" of a magnet is defined as the part of the magnet that is attracted to what?

   	A.	The north pole of another magnet
   	B.	The south pole of another magnet
   	C.	The Arctic region of the Earth
   	D.	The Anarctic region of the Earth
   	E.	The equator of the Earth

QUESTION 5

1. A magnetic field will appear whenever what is true?

   	A.	Whenever there is a charged object nearby
   	B.	Whenever there is a moving object nearby
   	C.	Whenever there is a massive object nearby
   	D.	Whenever there is a charged AND moving object nearby
   	E.	Whenever there is a piece of rion nearby

QUESTION 6

1. The power provided by the voltage source in a simple circuit MUST equal the total power of all the resistors in the circuit.

   True

   False

QUESTION 7

1. Iron is the only substance that can act as a ferromagnet.

   True

   False

QUESTION 8

1. Electromagents are generally more powerful than permanent magnets.

   True

   False

QUESTION 9

1. As long as a substance is an electrical conductor, it can also be easily made into a permanent magnet.

   True

   False

QUESTION 10

1. An object can have a single type of net charge (positive or negative), but never a single magnetic pole (north or south).

   True

   False

Please answer these three questions
(1)
In what ways are the photons emitted during stimulated emission related to the incident (stimulating) photons?
(2)
What conditions must a collection of atoms meet in order to amplify an incident beam of light?
(3)
Very briefly describe how these requirements are met in a helium

squid are the fastest swimmers among invertebrates. A cavity within the squid is filled with water. the mantle, a powerful muscle squeezes the cavity and expels the water through a narrow opening (the siphon) at high speed. using momentum conservation, explain how this propels the squid forward. How is the squids swimming mechanisms like a rocket engine?.

Consider the following seven types of electromagentic waves: visible light, microwaves, radio waves, gamma rays, infrared, uv and x-rays

a) place the waves in order from shortest wavelength to longest

b)place the waves in order fromm lowest frequency to highest

c) which waves travels with the highest velocity in a vacuum

Speculate about some worldwide changes likely to follow the advent of successful fusion reactors. Compare the advantages and disadvantages of electricity coming from a large central power station versus a network of many smaller solar-based stations owned and operated by individuals.

Will it be possible to find the initial velocity using Newton