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Q1. A ball is thrown directly up from the ground with speed vsub0. At the same time, a second ball is dropped from rest from a height H, straight above the point where the first ball was thrown upward. There is no air resistance. A) Find out the time at which the two balls collide. B) Find out the value of H in terms of vsub0 and g so that at an instant the balls collide, first ball is at the highest point of its motion.
Q2. Consider the vector with magnitude 5.00 at an angle 25.5 north of east. What is the x component of the vector?
a car with a mass 1865 kg is travelling west and slows down uniformly to 8.5 m/s over a distance of 108 m. calculate the initial speed of the car if the required braking force is 7525 N
How much time elapses between first splash and second splash
Using the capacitance determined in part (a), calculate the current in the circuit 7.4 ms after the switch is closed. Suppose that the capacitor is uncharged initially and that the emf of the battery is 9.0 V
How long does it take for amplitude to drop to half its initial value . How long does it take for mechanical energy to drop to half its initial value.
Two boats start together and race across a 62-km-wide lake and back. Boat A goes across at 62 km/h and returns at 62 km/h. Boat B goes across at 31 km/h, and its crew, realizing how far behind it is getting, returns at 93 km/h.
A 79.0 kg man is riding in a shopping mall. The escalator moves the man at constant velocity from ground level to the floor above, the vertical height of 4.40m.What is the work completed on the man by the gravitational force and the escalator.
The flywheel of an engine has a moment of inertia 2.20 {rm kg} cdot {rm m}^{2} about its rotation axis. What is its final kinetic energy.
What are sunspots and how are they related to the Sun's magnetic field? Is the magnetic field stronger weaker in sunspots? How does the temperature in a sunspot relate to the temperature in the rest of the photosphere.
The link between portfolio level objectives with portfolio success factors that are achieved through individual projects and points out how contributes to strategic fit, use of synergies, etc.
A 65Kg ice skater pushes off his partner and accelerates backwards at 1.3m/s^2. If the partner accelerates in the opposite direction at 2.0m/s^2, what is mass of the other skater.
What is an electric potential at a point
What is instantaneous acceleration
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