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A hoop and a disk, both of 0.44- m radius and 5.0- kg mass, are released from the top of an inclined plane 3.5 m high and 8.7 m long. What is the speed of each when it reaches the bottom? Assume that they both roll without slipping. What is the speed of the hoop?
A 55-kW radio station broadcasts its signal uniformly in all directions. What is the average intensity of its signal at a distance of 250 m from the antenna
If a lens with focal length 10 cm is placed 30 cm from an image 3 cm tall, how tall is the resulting image
A rock is suspended from the string and moves downward at constant speed. Which statement is true concerning the tension in the string if air resistance is ignored.
Draw a free body diagram for each situation and find the magnitude of the larger of the two individual forces in units of N. Find out the magnitude of the smaller of the individual forces in units of N.
a 2.5-kg mass is connected to a spring with spring constant k = 150 N/m and unstretched length 19 cm. the pair are mounted on a frictionless air table, with the free end of the spring attached to a frictionless pivot. the mass is set into circular..
A whale swims due east for a distance of 1.5 km, turns around and goes due west for 5.7 km, and finally turns around again and heads 4.5 km due east. What is the total distance traveled by the whale
AC power is carried to a home via a transmission line, where each wire has a resistance of 0.36 OHMS. What is the rms voltage on the primary side of transformer T2
An empty storage tank has a volume of 144 ft3. What is the buoyant force exerted on it by the air
A generating station is producing 2.00 106 W of power that is to be sent to a small town located 8.0 km away. Find the power used to heat the wires if the power is transmitted at 1300 V
The blood flow rate through the aorta is typically 95 cm3/s, and a typical adult has about 5.1 liters of blood. what is the speed of blood as it flows through the aorta
A point charge q = -2.4 nC is initially at rest adjacent to the negative plate of a capacitor, What is the kinetic energy of the point charge just before it hits the positive plate
The coefficient of friction between a certain brass block and a large revolving turntable is μ = 0.24. What is the period of rotation of the turntable
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