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A sinusoidal ac voltage source in a circuit produces a maximum voltage of 12.6V and an rms current of 7.50mA .
Part A: Find the voltage amplitude.
Part B: Find the current amplitude.
Part C: Find the rms voltage of this source.
If the internal energy of a system increases as the result of an adiabatic process, Calculate the work done on or by the system in part (a) if its internal energy increases by 700J
The intensity of electromagnetic waves from the sun is 1.4kW/m2 just above the earth's atmosphere. How many Joules of solar energy fall on your back as you work on your tan for 1.1hr
A tennis ball rolls off the edge of a tabletop 0.500m above the floor, Find the direction of the velocity of the ball just before it strikes the floor
A 150 g ball and a 220 g ball are connected by a 36{rm cm}-long, mass less, rigid rod. The balls rotate about their center of mass at 130 rpm. What is the speed of the 150 g ball.
A certain spring is found not to obey Hooke's law; it exerts a restoring force Fx(x)=??x??x2 if it is stretched or compressed, Calculate the potential energy function U(x) for this spring. Let U=0 when x=0
To estimate the muzzle speed of a blow dart, fire dart straight up into the air and time how long it takes to come back down. Roughly half of that time is the time for object to decelerate from its initial velocity to motionless. Estimation the in..
A pendulum clock keeps time by the swinging of an attached mass at the end of a massless string of length L, What is the angular position of the mass at t = 0.246s
In designing a transformer, an engineer knows she needs 240 V to come out of the secondary circuit. what is the ratio of primary voltage to primary turns
A parallel plate capacitor has plates 2.00 cm by 3.00 the plates are saparated by a 1.00 m thickness of teflon. find the capacitance of this device
Two small metallic spheres, each of mass 0.20g, are suspended as pendulums by light strings from a common point.
A 69.00 kg person on skis is going down a hill sloped at 30° from the horizontal. The coefficient of friction between the skis and the snow is 0.20. What would be magnitude of the acceleration.
Calculate the magnitude of the electric field at the origin due to the following distribution of charges: -q at (x,y) = (a,a), +q at (a,-a), +q at (-a,-a) and -q at (-a,a)
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