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You are standing in front of a lens that projects an image of you onto a wall 3.00 meter on the other side of the lens. This image is three times your height.
A) Determine how far are you from the lens?
B) Calculate the focal length of the lens?
a projectile passes point a with a velocity v upward. at some time later the projectile passes point b with a velocity
A wire coil is initially oriented so that its plane is perpendicular to a magnetic field of 0.68 T pointing to the left. what is the diameter of the coil
The moon orbits the earth at a distance of 3.85 x 10^8 m. Assume that this distance is between the centers of the earth and the moon and that the mass of the earth is 5.98 x 10^24 kg. Find the period (in days) for the moon’s motion around the earth.
What is the final charge of each conductor. Two identical spherical conductors X and Y are mounted on insulated stands. X carries the charge of +8.0nC and Y carries a charge of -2.0nC.
A coil has 400 turns and self-inductance 4.80mH . The current in the coil varies with time according to i=(630mA)cos[pit/(0.0250s)]. Part A Max Emf induced in the coil =0.410V Part B Max flu through each turn of the coil= 8.16*10-6 Wb Part C At = 0.0..
describe the change in flux through and the induced current in a loop of wire rotated in a uniform magnetic field
The driver of the compact car suddenly applies the brakes hard for 2.0sec. Determine what is the change in momentum; that is, the direction and magnitude of the impulse, on the car
A uniform rope of uniform weight W hangs between two trees. The ends of the rope are the same height and they each make and angle theta with the trees. What is the tension at either end of the rope. Find the tension at the middle of the rope.
How much work does Bob do on the rock and How much force, assumed to be constant, does Bob apply to the rock
A parachutist with a camera descends in free fall at a speed of 11 m/s. The parachutist releases the camera at an altitude of 100 m. How long does it take the camera to reach the ground
Two objects attract each other with a gravitational force of magnitude 9.30 10-9 N when separated by 19.2 cm. If the total mass of the objects is 5.04 kg, what is the mass of each
An RLC circuit of a 2 picoF capacitor, a 4.4 ohm resistor, Find the phase shift in radians between the current and the driving voltage
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