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A sphere is spinning with a constant angular velocity. A 371 N force is applied at the axis of rotation. A rotating body has an angular acceleration of 9rad/s 2. A 3175 N force is applied 6 cm from the axis of rotation and is parallel to the lever arm. A force is applied 47 cm away from the axis of rotation and is perpendicular to the lever arm.
A spring-loaded toy gun shoots a 18 g plastic ball. What is the launch speed if the spring constant is 4.4×104 N/m^3 and the spring is compressed 14 cm
A spring with an unstrained length of 0.070 m and a spring constant of 2.4 N/m hangs vertically downward from the ceiling. What is the magnitude of the external electric field
Your car's fan belt turns a pulley at 3.15rev/s . When you step on the gas for 1.60s , the rate increases steadily to 5.95rev/s . What's the pulley's angular acceleration
A steel rod (? = 7860 kg/m3) has a length of 2.19 m. It is bolted at both ends between immobile supports. Initially there is no tension in the rod, because the rod just fits between the supports. Find the tension that develops when the rod loses 3..
At a market a bunch of bananas are set on a spring scale tomeasure their weight. What is the massof the bananas
A violinist places her finger so that the vibrating section of a 1.20 g/m string has a length of 40.0 cm, then she draws her bow across it. A listener nearby in a 20 ^circ {rm C} room hears a note with the wavelength of 30.0 cm. What is the tensio..
A uranium nucleus (mass 238 u), initially at rest, undergoes radioactive decay. what is the recoil speed of the thorium nucleus
A 720-kg race car can drive around an unbanked turn at a maximum speed of 43 m/s without slipping. The turn has a radius of 160 m, What is the coefficient of static friction between the track and the car's tires
A nebula ‘a region of the galaxy where new stars are forming contains a extremely tenuous gas with 133atoms/cm3. This gas is heated to 7131 K with ultraviolet radiation from nearby stars. What is the gas pressure?
Assume The resistance per length of the wire is 0.089 Ω/m. When the magnetic field is 0.5 T, find out the magnitude of the current through middle leg PQ of the circuit.
a 31 kn roller coaster starts from rest and is launched along a horizontal section of track. it takes 23 m to reach a
A 120g ball moving at 0.50 m/s in the + x direction is subject to a 0.25 N force in the - y direction for 2.5 s, Find the balls final speed
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