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A pendulum bob passes through the lowest part of its path at speed of 2 m/s.
a) What is the tension in the pendulum cable at this point if the pendulum is 80 cm long.
b) When the pendulum reaches its highest point what is the tension in the pendulum cable.
An alternating emf source with a variable frequency fd is connected in series with a 50.0 ? resistor and a 20.3 ?F capacitor. find the angular speed at which the phasors rotate
A 245 kg person lays on board that is supported only on the ends and that has a mass of 12.0 kg. what is the force on either side where the board is supported
A shuffleboard disk is accelerated to the speed of 6.1 m/s and released. If the coefficient of kinetic friction between disk and the concrete court is 0.30, how far does the disk go before it comes to a stop? The courts are 14.5m long.
Suppose a block with mass 2.30kg is resting on a ramp. If the coefficient of static friction between the block and the ramp is 0.420. Find the maximum static friction force that acts on the block.
A shopper standing 2.40 m from a convex security mirror sees his image with a magnification of 0.240. What is the focal length of the mirror
Three resistors, 31 ?, 34 ?, and 68 ?, are connected in series, and a 0.62-A current passes through them. What are the potential difference across this equivalent resistance
At the same instant that a motionless 9.6 kg ball is dropped from 27 m above the Earth's surface, a second ball, what is the velocity of the center of mass of the two-ball system
A transformer steps up the 120 V rms AC power line voltage to 23 kV rms for a TV picture tube. what is the secondary current
a standing wave oscillating on a string at frequency f_0. How many antinodes will there be if the frequency is increased to 3f_0
A negative charge of -2.0 multiplied by 10-4 C and a positive charge of 9.5 multiplied by 10-4 C are divided by 0.30 m. What is the force between the two charges.
A car travelling in a large circle passes by the motorcycle that is travelling in a straight line from North to South. Both of their speedometers read 10m/s.
A football is kicked at an angle of 28.4 degrees above horizontal and with an initial speed of 27.9. The ball lands on a level field. Determine The range of the football
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