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A thin converging lens has a focal length of 20 centimeter. If an object is located 40 centimeter from the lens, determine is the image real or virtual and where is it located?
q1. an engineer needs a resistor with zero overall temperature coefficient of resistance at 20oc. she designs
23g of copper pellets are removed from a 300?C oven and immediately dropped into 70mL of water at 23?C in an insulated cup
A uniformly charged ring is 1.0 cm in radius. The electric field on the axis 3.5 cm from the center of the ring has magnitude 2.5MN/C
A horizontal wire is hung from the ceiling of a room by two massless strings. The wire has a length of 0.10 m anda mass of 0.008 kg. A uniform magnetic field ofmagnitude 0.075 T is directed from the ceiling to the floor.
An amusement ride consists of a car moving in a vertical circleon the end of a rigid boom. The radius of the circle is 10 meter.The combined weight of the car and riders is 5.0 kNewton. At thetop of the circle the car has a speed of 5.0 m/s.
two blocks are connected by a massless rope. the rope passes over an ideal frictionless and massless pulley such that
An 8.70-kg block slides with an initial speed of 1.80 m/s down a ramp inclined at an angle of 22.2 deg with the horizontal. Use energy conservation to find the distance the block slides before coming to rest
Two radio waves are used in the operation of a cellular phone. To receive a call, the phone detects the wave emitted at one frequency by the transmitter station or base unit.
A non-relativistic electron and a non-relativistic proton, of rest masses me and mp, have equal kinetic energies. What is the ratio of the de Broglie wavelength of the electron, le, to that of the proton, lp? Get an algebraic, rather than numerical, ..
A pendulum is made with a 4.00 kg mass suspended at the end of a 75.0 cm thin rod. What is the velocity of the pendulum as it passes through the origin
A spaceship(Mo = 10,000 kg & Lo = 42m) is observed to be 42.2m long while traveling towards earth Determine the speed of the space ship. Determine the radio frequency emitted by the ship
The magnitude of the force the sun exerts on Uranus is 1.41X10^21 newtons. Explain how it is possible for the sun to exert a greater forceo n Uranus then Neptune exerts on Uranus. A 2.0 kg object is falling freely near Earth's surface. What is the ..
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