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A mechanic pushes a 2.8 multiplied by 103 kg car from rest to a speed of v, doing 5400 J of work in the process. During this time, the car moves 20.0 m. Neglecting friction between car and road, find each of the following.
(a) the speed v
m/s
(b) the horizontal force exerted on the car
N
What is the force on the bottom of a 36.0 cm tall cylindrical beaker with a diameter o 6.0 cm with water filled to its brim, answers in N.
A wrecking ball (weight = 5010 N) is supported by a boom, which may be assumed to be uniform and has a weight of 3670 N. As the drawing shows, a support cable runs from the top of the boom to the tractor.
Calculate the change in specific entropy of air as it is expanded from 2500kPa and 550 degrees C to 120kPa and 65 degrees C
A man in a restaurant asked a waiter for a juice glass, a dinner plate, water, a match, and a lemon wedge. How did the waiter get the water into the glass
A 25 g of copper pellets are removed from a 300 C oven and immediately dropped into 120 mL of water at 18 C in an insulated cup. What will the new water temperature be.
A +19nC charge is located at the origin. What is the electric field at the position (x1,y1)=(5.0cm,0cm)? Write electric field vector in component form
A long rod of lenght " L " and cross sectional area "A" is weighted such that when it is placed in a bucket of water it floats vertically. determine the magnitude of the buoyant force on the rod
What was the final temperature of the coins. What is the train's acceleration after its wheel begins to stick.
What is the energy in joules of an x-ray photon with wavelength 1.95 10-9 m, Convert the energy to electron volts
A dolphin located in sea water at a temperature of 25°C emits a sound directed toward the bottom of the ocean 100 m below
A circuit contains two elements, but it is not known if they are L, R or C. The current in this circuit when connected to a 9.30×101 V, What is the power dissipated in the circuit
While on a camping trip, you would like to carry water from the lake to your campsite. find Which bucket holds more water
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