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A 2100-kg truck traveling north at 41 km/hr turns east andaccelerates to 60 km/h.
(a) What is the change in the truck's kinetic energy?
(b) What is the magnitude of the change in the truck'smomentum (i.e., the magnitude of delta p)
(c) What is the direction of the change in the truck'smomentum (i.e., the direction of delta p)?
An energy storage system based on a flywheel (a rotating disk) can store a maximum of 3.0 MJ, What is the moment of inertia of the flywheel
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A meter rule is balanced at the 70 cm mark by placing a 200-g mass at the 80 cm mark. At what point will the ruler balance if the 200-g mass is moved to the 90 cm mark?
A solenoid of length 5.6 cm and diameter 0.88 cm is wound with 167 turns per cm. The current is decreasing at a rate of 37.4 A/s. What is the induced emf in the entire solenoid
Wool is rubbed against a plastic ruler. how many electrons have been transferred to the ruler
A 70 kg astronaut floating in space in a 110 kg MMU (manned maneuvering unit) experiences an acceleration of 0.029 m/s2 when he fires one of the MMU's thrusters. What is the thrust of the thruster
questionthe cornea of the eye has a radius of curvature of approximately 0.50 cm and the aqueous humour behind it has
a metal airplane flies horizontally at 200. m/s where the Earth's magnetic fiels is vertical and is 45.0uT. If the wingspan is 25.0 meters. what emf is induced across the wings
With a 2 meter lever, the fulcrum is 30 cm from the load of 200 pounds. How much "effort" force will be needed to lift it, Which type of lever describes a wheelbarrow
the second person is initially at rest. Illustrate what are the velocities of the two people after the snowball is exchanged? Disregard the friction between the skates and the ice.
A proton moves at 7.50 X 10 ^7 m/s, perpendicular to a magnetic field. The field causes the proton to travel in a circular path of radius 0.800m.
A tree is approximated as a 60m tall cylinder with a diameter of 3m. What is the weight of the tree, using p as the unknown density of wood? Calculate the amount of compression of the tree due to gravity.
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