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A) A ball at is launched at 30 degrees above the horizontal with an initial speed at t = 0 of v0 = 1.00 m/s, from an initial height h0 = 1.00 m above the ground. What is the maximum height hmax it achieves above the ground, and what is the time tmax it takes to get there? Show your final formulas, and the numerical results.
B) For the projectile motion mentioned above, what is the total time tf before it hits the ground, and what is the distance xf where it hits from its initial value x0 = 0? Show your final formulas, and the numerical results.
What power of contact lens (lens eye distance is zero) is required so that objects far away are sharp? What will be the nearest distance at which the person can read with the contact lens in place?
A projectile is launched with an initial speed of40.0 m/s at an angle of 35.0° above the horizontal. What is the projectile's velocity at the highest point of its trajectory
An electric field of 220000 N/C points due west at a certain spot. What is the magnitude of the force that acts on a charge of -10C at the spot.
The springs of a 1,349.37 kg car compress 5.0 mm when its 68-kg driver gets into the driver's seat. If the car goes over a bump, what will be the frequency of vibrations
A stone is dropped at t = 0. A second stone, with twice the mass of the first, is dropped from the same point at t = 179 ms. How far below the release point is the center of mass of the two stones at t = 386 ms
question an emf is induced in a conducting loop of wire 1.10 m long as its shape is changed from square to circular.
A piece of wood is 6.00 m long, 0.260 m wide and 0.060 m thick. Its density is 600kg/m cubed. What volume of iron ( P iron = 7.8 x 10 cubed kg/m cubed) must be fastened underneath the wood to sink it so that the top surface of the wood is just even w..
A spring (k =805N/m) is hanging from ceiling of an elevator, and a 5.0-kg object is attached to the lower end. By how much does the spring stretch (relative to its unstrained length) when the elevator is accelerating upward at a = 0.47m/s2.
A 212-kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. evaluate the tension in the rope
A 4-cylinder, 4-stroke engine of 78 mm bore and 105 mm stroke develops an indicated power of 47.5 kW at 4400 rpm. The air/fuel ratio is 21 kg air/kg fuel, the fuel consumption is 13.6 kg/h and the calorific value of the fuel is 41.8 MJ/kg. calcula..
A flywheel has a constant angular deceleration of 2.2 rad/s2. Find the time for the flywheel to come to rest
What is the acceleration of the block? What is the tension in the string? Find the magnitude α of the angular acceleration of the cylinder as the block descends.
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