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Two coils have the same number of circular turns and carry the same current. Each rotates in a magnetic field acting perpendicularly to its axis of rotation. Coil 1 has a radius of 6.7 cm and rotates in a 0.14-T field. Coil 2 rotates in a 0.59-T field. Each coil experiences the same maximum torque. What is the radius (in cm) of coil 2?
A person of mass 80.0kg stands at the center of a rotating merry-go-round platform of radius 2.50m and moment of inertia 910kg*m^2. Calculate the rotational kinetic energy of the system of platform plus person before and after the person's walk
One mole of neon gas is heated from 364 Kto 410K at constant pressure. Calculate the change in the internal energy of the gas
A grindstone of radius 4 m is initially spinning with an angular speed of 8 rad/s. The angular speed is then increased to 10 rad/s over the next 4 seconds. Imagine that the angular acceleration is constant.
Two physical pendulums (not simple pendulums) are made from meter sticks that are suspended from the ceiling at one end. Determine the period of the wood pendulum
A car traveling at 93km/h strikes a tree. The front end of the car compresses and the driver comes to rest after traveling 0.75 m. What was average acceleration of the driver during the collision? Express the answer in terms of "g's," where 1.00g ..
The electric field within the membrane separating the inside and outside of a biological cell is approximately 7.8MV/m, what is the potential difference across the membrane
As the driver steps on the gas pedal, a car of mass 1 180 kg accelerates from rest. What is the minimum average power output of the engine over this time interval
A uniform beam of length L and of weight 900.00 N is attached to a vertical wall by a hinge. calculate the force exerted by the hinge on the beam
Emilie wishes to fly to Phun City, a place where Physics Geeksrule the land, loacted 800 km [N] of her present postion. what will be her observed ground velocity
A rectangular loop of side lengths 3 cm and 5 cm, What is the speed of the loop if the induced current is 1.5 mA
The terminal voltage of a certain battery is measured with the battery disconnected and is found to be 6.30 V. Find the voltage across the battery terminals
The projection lens in a certain slide projector is a single thin lens. A slide 24.6 mm high is to be projected so that its image fills a screen 1.78 m high. Determine the focal length of the projection lens
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