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Inside the unit is a step-down transformer with a turns ratio of 1:12. The wall socket provides 110 V. What voltage does the secondary coil of the transformer provide?
The jump length is specified to have a horizontal distance of 3.0 meters. Determine the skateboarder's velocity at the moment she leaves the ramp.
If it is given an initial displacement of 0.24 m and then released, what is the initial potential energy of the oscillator?
A wave in the ocean has amplitude of 3m winds pick up suddenly increasing the wave's amplitude to 6m how does this change in amplitude affect the wave's frequency and amount of energy it transports
Two parallel plates separated by 0.2 m, are connected to a 12-V battery. An electron released from rest at a location 0.1 m from the negative plate. When the electron arrives at a distance 0.050 m
If the cab is moving upward at full load at 4.41 m/s, what power is required of the force moving the cab to maintain that speed?
A hockey puck leaves a player's stick with a speed of 7.90 m/s and slides 37.0 m before coming to rest. Find the coefficient of friction between the puck and the ice.
The coefficient of kinetic friction between the tires and the road is uk =0.71 How fast was the car going before the drive applied the brakes?
The coefficient of kinetic friction is 0.200. What is the magnitude of P, so that the net work done by it and the kinetic frictional force is zero?
A cord is wrapped around the rim of a solid uniform wheel 0.300 in radius and of mass 7.80 . A steady horizontal pull of 40.0 to the right is exerted on the cord, pulling it off tangentially from t
The tension on each cable is 5.00 X 10^3 Newton's. The canal is 2-km long. What is the net work done on the boat by the two locomotives?
Find the (a) magnitude and (b) direction of A - B. (Give the direction as a positive angle with respect to due east). Find the (c) magnitude and (d) direction of B - A. (Give the direction as a posi
Find the rate at which thermal energy is being generated. Give a numerical answer, in watts, rounded to the nearest 10 W.
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 the tension in the suppor
What speed would a proton need to circle the Earth 800 km above the magnetic equator, where the Earth's magnetic field is directed on a line between magnetic north and south and has an intensity of
A speed of 0.045 m/s in the same direction. After the collision, glider A continues in the same direction at 0.035 m/s. What is the speed of glider B?
A potential difference of 4.2×10-2 is developed across a 10-cm-long wire as it moves through a magnetic field at 5.0 . The magnetic field is perpendicular to the axis of the wire. What is the
A house has a floor area of 115 m2 and an outside wall that has an area of 24 m2. The earth's magnetic field here has a horizontal component of 2.50 e 10-5 T that points due north and a vertical co
If an apple weighing 1 N is hanging from the limb of a tree, what are the action and reaction forces?
A,find the angular velocity of a wheel that rotates at 120 rpm.B,what will be the tangential velocity of the outside of the wheel if its radius is 25cm?
Where t is in seconds, is applied to the cable, determine the power developed by the force when t = 5s. Hint: First determine the time needed for the force to cause motion.
After a 0.360-kg rubber ball is dropped from a height of 1.85 m, it bounces off a concrete floor and rebounds to a height of 1.35 m. a) Determine the magnitude and direction of the impulse delivered
Calculate g for space shuttle territory 220 km above Earth's surface. Assume Earth's mass is 6.0 1024 kg, and its radius is 6.38 106 m (6380 km).
Air and friction are negligible. What speed vf does the ball have when the cable makes an angle of 30 degrees with respect to the vertical.
She is going fast enough to coast up and over it without peddling. Ignoring air and frictional resistance, find the speed at which the cyclist crests the hill.