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A turntable 1.50{m} in diameter rotates at 80.0{rpm} . Two speakers, each giving off sound of wavelength 30.7{cm}, What is the greatest beat frequency the listener will receive from this system
A ball is thrown horizontally from the roof of a building 47.0m tall and lands 21.3m from the base. What was the ball's initial speed
A crate of mass 10.6 kg is pulled up a rough incline with an initial speed of 1.52 m/s. What is the change in kinetic energy of the crate
The child then walks towards the center of the merry-go-round and stops at a distance 0.555 m from the center. Now what is the angular velocity of the merry-go-round
A horizontal 605 N merry-go-round of radius 1.31 m is started from rest by a constant horizontal force of 77.9 N applied tangentially to the merry-go-round. Find the kinetic energy of the merry-go-
A block of mass 0.243 kg is placed on top of a light, vertical spring of force constant 4 825 N/m, To what maximum height above the point of release does it rise
The total electric field consists of the vector sum of two parts. One part has a magnitude of E1 = 1300 N/C, Find the magnitude and direction of the total field
A 5.5 %u03BCC point charge is placed in an external uniform electric field that has a magnitude of 68000 N/C
An engineer is designing the runway for an airport. Of the planes that will use the airport, the lowest acceleration rate is likely to be 3 m/s2. what is the minimum allowed length for the runway
Object A is moving due east, while object B is moving due north. They collide and stick together in a completely inelastic collision. Momentum is conserved. Find the direction of the final velocity
A 7 kg fish is swimming at 1.8 m/s to the right. He swallows a 1.0 kg fish swimming toward him at 3 m/s. what is the velocity of the larger fish
You are to design a tungsten filament light bulb that has a power of 60W when it is connected to 120V at which condition its temperature is expected to be 1020C. Calculate the length of filament tha
Squaw Valley ski area in California claims that its lifts can move 48300 people per hour. estimate the maximum total power needed
An electric vehicle starts from rest and accelerates at a rate a1 in a straight line until reaches a speed of v. How far does the vehicle travel from start to stop
The triceps muscle in the back of the upper arm extends the forearm. What is the moment of inertia of the boxer
A gyroscope slows from an initial rate of 32.0 rad/s at a rate of . How many revolutions does it make before stopping
One afternoon, a couple walks three-fourths of the way around a circular lake, the radius of which is 1.69 km. What is the distance they travel
A series RLC circuit has a peak current of 4A with a frequency of 32kHz, determine the average power of the circuit over one cycle
acA block lies on a plane which is inclined at 22 deg to thehorizontal. The coefficient of kinetic friction between blockand plane is %u03BCk = 0.17. compute the acceleration of the block
An airplane is traveling parallel to the ground in a region where the Earth%u2019s magnetic field is oriented perpendicular to the ground. What is the resulting voltage difference between the ends of
Two moles of an ideal gas are placed in a container whose volume is 6.9 x 10-3 m3. What is the average translational kinetic energy of a molecule of the gas
a 2.745 kHz the reactance in a circuit of a 4uF capacitor and an inductor are equal in magnitude. what is the value of the inductor
Three resistors having resistances of 1.50{\rm \Omega} , 2.30{\rm \Omega}, and 4.70{\rm \Omega} are connected in parallel to a 29.0{\rm V}battery that has negligible internal resistance
It has been suggested that rotating cylinders about 9.0 mi long and 4.6 mi in diameter be placed in space and used as colonies. What angular speed must such a cylinder have
A centrifuge in a medical laboratory rotates at an angular speed of 3,700 rev/min. Find the constant angular acceleration (in rad/s2) of the centrifuge