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A steel bicycle wheel (without the rubber tire) is rotating freely with an angular speed of 16.4 rad/s. The temperature of the wheel changes from -141 to 202 °C. No net external torque acts on the wheel, and the mass of the spokes is negligible. What is the angular speed of the wheel at the higher temperature?
A 1200 N uniform boom is supported by a cable perpendicular to the boom, as in Figure P8.28. The boom is hinged at the bottom, and a 2000 N weight hangs from its top. Find out the tension in the supporting cable and the components of the reaction ..
Consider two identical 25-micro-coulomb point charges, each of 18 mg mass. Let them initially be at rest, 80 cm apart. How fast (in m/s) will each charge be moving when the charges are very far apart
You stand in the earth's magnetic field, directly facing its horizontal component (in other words, facing magnetic south). Compute the outward flux through your body's back surface
A 0.450-kg ball is dropped from rest at a point 1.30-m above floor. The ball rebounds straight upward to a height of 0.700-m. What are the magnitude and direction of the impulse of the net force applied to the ball throughout the collision with th..
at the surface of the earth what is the force on the rocket due to gravity when the rocket has reached an altitude of 1.2 x 104 km
What is the average induced emf in the coil in mV. If he is crossing a river where the current is 1.60 km/h, in what direction should his boat be headed if he wants to reach the point directly opposite his starting point.
A hydrogen atom is in the 2s state. Determine the principal quantum number and the energy of the state
A charged paint is spread in a very thin uniform layer over the surface of a plastic sphere of diameter 14.0cm , giving it a charge of -11.0μC. Find the electric field just outside the paint layer
A 225-m length of wire stretches between two towers and carries a 180-A current. Determine the magnitude of the force on the wire due to the Earth's magnetic field
Calculate the speed of a proton after it accelerates from rest through a potential difference of 160.
A car is traveling at 61.6 km/hr on a flat, concrete highway. If the brakes are applied such that skidding occurs, the kinetic coefficient of friction between the road and tires is 0.802. If anti-lock brakes are properly applied then no skidding o..
The International Space Station ISS (the mass is approximately 990,000 pounds) orbits the earth at an altitude of approximately 250 miles above the surface of the earth.
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