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Q. A pendulum bob of length L has its motion interrupted by the peg perpendicularly beneath the support. The bob is released when the string is horizontal. Find out the minimum value for y in order for the bob to swing in a complete circle. State this value of y in terms of L only.
Q. A 2840 kg truck has a velocity of 8.30 m/s and comes to a stop in 15s. What are the initial velocity, final velocity, initial momentum and final momentum?
A hiker walks 3.50 km at an angle of 45.0 degrees north of west. After that the hiker walks 1.5 km south. What is the magnitude and direction of hiker's totally displacement.
How many 185 W lightbulbs can you use in a 191 V circuit without tripping a 15 A circuit breaker? (The bulbs are connected in parallel, which means that the potential difference across each lightbulb is 131 V.)
In an effort to stay awake for an all-night study session, a student makes a cup of coffee by first placing a 200 W electric immersion heater in 0.320kg of water.
explain the separation between the two sources. What is the displacement of the car between 3 P.M. and 6 P.M.
How strong is the electric field between the plates.
A spring has k = 96 Nm. use a graph to determine the work needed to stretch it from x=3.8 cm to x=6.1cm, where x is the displacement from its unstretched length.
A copper telephone wire has essentially no sag between poles 20.5 meters apart on a winter day while the temperature is -15.5° C. How much longer is the wire on the summer day when the temperature is 27.0° C.
You and a friend each drive 67 km. You travel at 88.1 km/h, your friend at 952.6 km/h. How long would your friend wait for you at the end of the trip.
Find the distance point P on the tip of the blade has traveled in 3 sec. Also, find the magnitude of the acceleration of point P when t = 3 sec.
Using the medium p model of the line, Find the current, voltage, reactive power, real power, & power factor at the sending end of the line.
What is the direction of E for points. find the balls initial speed.
Suppose the Eskimo is pushing the same 50.0-kg sled across level terrain with a force of 50 N. If he does 4 x 10^2J of work on the sled while exerting the force horizontally, through what distance must he have pushed it.
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