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Q. A woman walks 300m in the direction 30° east of north, then 300 m directly east. Find
(a) magnitude and
(b) angle (from due east) of her final displacement from the starting point.
(c) Find the distance she walks.
A wheel of diameter 5.8 cm has a 4 m cord wrapped around its periphery. Starting from rest, wheel is given a constant angular acceleration of 4.9 rad/s2. How much time it will take for the cord to unwind.
Students hypothesized that by running the electric current through the wire of the apparatus shown here, they could cause the non-magnetic nail to exhibit magnetic properties. What would be a reasonable way to test this.
A bumper car with mass m1 = 115kg is moving to the right with a velocity of v1 = 4 m/s. A second bumper car with mass m2 = 95 kg is moving to the left with a velocity of v2 = -3.7 m/s. The two cars have an elastic collision. Suppose the surface is fr..
A person with perfect pitch sits on a bus bench listening to the 445 Hz horn of an approaching car. If the person detects the frequency of 488 Hz, how fast is the car moving.
What is the muzzle velocity
What is the velocity of 5.5kg object with a force of 2.5N while it reaches 6.0 meters, assuming the velocity at zero meters is zero.
A child and sled with a combined mass of 49.20 kg slide down a frictionless hill that is 7.38 m high. If the sled starts from rest, what is its speed at the bottom of hill.
What is the velocity of the gold pack after the collision. what least average speed must it have in the second half of the event in order to qualify.
How much charge is applied to each of the cylinders.
A person desires to reach a point that is 3.40 km from her present location and in a direction that is 350 north of east. However, she must travel along streets that are oriented either north-south or east-west. What is the minimum distance she mi..
Find maximum height reached by the diver using the equation of motion.
A 380-N, uniform, 1.50 m bar is suspended horizontally by two vertical cables at each end. A small object of weight 520 N is placed distance 0.5 m from the cable A. What is the tension in cable A.
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