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In the AC circuit shown in Figure P33.5, R = 70.0 ohms and the output voltage of the AC source is Vmax*sin(wt). (a) If VR = .250*Vmax for the first time at t = .010 s, what is the angular frequency of the source? (b) What is the next value of t for which VR = .250*Vmax?
A 120 W lightbulb and a 90.0 W lightbulb are connected in a series. what is the current through the two bulbs
I put a material on top of it, and it only took one rotation--or crank--to knock the material off from the machine and onto the ground.
question1a 1201.0 n uniform boom of length l is supported by a cable. the boom is pivoted at the bottom the cable is
Estimate how many times planet has orbited its star
A satellite weighing 500 kg is in a circular orbit around the earth. It takes exactly 3 hours to go around the earth. what is the force of gravity on this satellite
A meteor streaking through the night sky is located with radar, its has moved to point B, Find the x component of its average velocity between A and B
A football is kicked off at a speed of 24 m/s at 30 degree about the horizontal and lands on the field. What is the horizontal distance from the starting point
A 200 g calorimeter contain 500 g of water at 21 degree Celsius. A 100g of ice at -20 degree Celsius is placed into the calorimeter. find the specific heat of the material of the calorimeter
An airplane must reach a speed of 377mi/h in order to take off. If the runway is 403 m long, what is the minimum value of the acceleration that will allow the airplane to take off successfully.
Draw a plot of ct vs x showing the positions of the three spaceships and of the light pulses vs. time, in Earth's frame. Find the times, according to the Earth frame, at which the pulses from ships C and A reach ship B.
A novice skier, starting from rest, slides down a frictionless 33.0° incline whose vertical height is 124 m. Explain how fast is she going when she reaches the bottom?
Two planes approach each other head-on. Each has a speed of 790km/h , How much time do the pilots have to take evasive action
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