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An elevator is rising at a constant speed, subject only to the tension (T) and gravitational (W) forces exerted on it by the cable above and the Earth below. As it rises, which force (if either) has a greater magnitude, T or W? Explain.Consider this in the light of Newtons 2nd law (N2L). What is the elevators acceleration?
question1assume you have cylindrical oil drum with a diameter d of 49.00 cm and a length l of 90.00 cm. now assume we
A string is clamped at one end and the other end rests on a light, frictionless pulley with a mass hanging below it to provide a tension. What is the mass on the end of the string
A 3.0 kg mass is attached to a vertical spring hanging from the ceiling. The spring and mass are stationary. The spring constant for the spring is 250 N/m. What is the gravitational potential energy of the system
A positive charge of 4.20 ?C is fixed in place. From a distance of 3.50 cm a particle of mass 6.20 g, How close to the fixed charge does the particle get before it comes to rest and starts traveling away
Two blocks made of different materials, connected by a thin cord, slide down a plane ramp inclined at an angle 32 degrees to the horizontal. Determine the tension in the cord
The period of a pendulum is 0.215 s on Earth. The period of the same pendulum is found to be 0.467 s on planet X, whose mass is equal to that of Earth.
The electric potential at a position located a distance of 21.0 mm from a positive point charge of 6.90×10-9C and 16.9 mm from a second point charge is 1.30 kV
The generator at a power plant produces AC at 24000 V. A transformer steps this up to 345,000 V for transmission over power lines. how many turns must there be in the output coil
In recent years, practical hybrid cars have hit the road - cars in which the gasoline engine runs a generator that charges batteries that run an electric motor. These cars offer increased efficiency, but significantly greater efficiency could be p..
A battery with an emf of 12 volts is coonected to a 60 watt light bulb and an ammeter. The ammeter reads 75 mA
A 5.0g- lead bullet is fired into a fence post. The initial speed of the bullet is 240m/s, How much does the bullets temperature increase
A force is applied to a 100-kg go-cart to accelerate it from 10.0 m/s to 20.0 m/s over a 7.00 s time frame. what is the magnitude of the force applied
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