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A projectile of mass 0.605 kg is shot straight up with aninitial speed of 18.3 m/s. (a) How high would itgo if there were no air resistance? (b) If theprojectile rises to a maximum height of only 7.02 m, determine the magnitude of the average force due to air resistance.
a soccer ball is kicked at an angle of 62 degrees to the horizontal with an initial speed of 18 ms. assume for the
An open train car, with a mass of 2010 kg, coasts along a horizontal track at the speed 2.73 m/s. evaluate the car\'s speed after the loading is completed
A Carnot engine absorbs 950J of heat each cycle and provides 340J of work. How much heat is rejected each cycle
A 0.954-kg toy car is powered by three D cells (4.50 V total) connected directly to a small DC motor. What is the average current supplied to the car\'s motor
A bowling ball encounters a 0.76 m vertical rise on the way back to the ball rack, as the drawing illustrates. find the translational speed at the top
a metal cylinder which has length l and a resistance of 4 ohms is melted down to form a new cylinder with twice the
a hockey puck has an initial velocity of 42 ms and a final velocity of 26 ms.a. if it travels 25 m during this time
A straight horizontal wire carries a current of 3.55 ?A. A proton is moving above the wire in a direction parallel to it but opposite to the direction of the conventional current in the wire, How far is the proton above the wire
question a speedboat increases its speed uniformly from 20 ms to 30 ms in a distance of 200m. find a the magnitude of
Given that the rotational constant of HF is 20.5cm-1, calculate the bond length of HF molecule
A boy in a wheelchair (total mass 51.0 kg) has speed 1.40 m/s at the crest of a slope 2.40 m high and 12.4 m long. Find the work he did in pushing forward on his wheels
A 3.4-cm-diameter parallel-plate capacitor has a 1.8mm spacing. The electric field strength inside the capacitor is 1.3×105V/m, What is the potential difference across the capacitor
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