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You throw a rock vertically upward with an initial speed of 19.9 m/s. What is the maximum height reached by the rock if it leaves your hand at a height of 1.81 m? 2.20×101 m You are correct. Your receipt no. is 161-604 Previous Tries How much time does it take for the rock to hit the ground?
What is the highest height reached by the rocket. what is its initial speed as it leaves the ground.
find the moment of inertia about the z axis of the hemispherical shell of z= (2^2-x^2-y^2)^(1/2), derive the unit normal vector for surfaces given by y=g(x,z_ x=h(y,z)
80 pF capacitor and a 320 pF capacitor are both charged to 2.8 kV. They are then disconnected from the voltage source and are connected together, Find the resulting potential difference across each capacitor
Two particles of charge Q(-L,0) and nQ(αL,0) where n = 10. When a third charge is placed at the origin, it is found that the force on it is zero. Find out α.
An electron has an initial velocity of 8.00 106 m/s in a uniform 7.00 105 N/C strength electric field. How long does it take the electron to come to rest
A 55-kg man holds a weight of 20 kg on his head. what is the work done by him against gravity if he moves a distance of 20 m (1) on a horizontal road, (2) on an incline of 1 in 5 ? take g = 10 m/s.s
A corner reflector is made from a triangular prism with an index of refraction of n=2.54 (in a right angle 45 45 90 triangular prism). What is the maximum angle of incidence
The maximum angular magnification of a magnifying glass is 12.0 when a person uses it who has a near point that is 25.0 cm from his eyes. Obtain the focal length of the objective
A heat engine operates in a Carnot cycle between 82.0°C and 345°C. It absorbs 20,000 J of energy per cycle from the hot reservoir, What is the mechanical power output of this engine
a freezer with a coefficient of performance of 3.88 is used to convert 1.75 kg of water to ice in one hour. how much electrical energy does the freezer use during this hour of operation
A 7.7cm diameter horizontal pipe gradually narrows to 6.7cm . When water flows through this pipe at a certain rate, What is the volume rate of flow
A tennis ball of mass 57 g travels with velocity m/s toward a wall. After bouncing off the wall, the tennis ball is observed to be traveling with velocity m/s.
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