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A ball is thrown from the top of a building upward at an angle of 35? to the horizontal and with an initial speed of 15 m/s. The ball is thrown at a height of 33 m above the ground. How long is the ball "in flight"? The accel- eration due to gravity is 9.8 m/s2.
The plate seperation of a parallel plate capacitor is 1 cm. The potential on the negatively charged plate of the capacitor is zero. What is the strength of the electric field in the capacitor
If an inductor carrying a 1.40 A current stores an energy of 0.250 mJ, How much energy does the same inductor store if it carries a 2.9 A current
q1. a car carrying a 77-kg test dummy crashed into a wall at 27ms and is brought to rest in 0.1 s. demonstrate that the
The critical angle for a certain liquid-air surface is42.0°. What is the index of refraction of the liquid
A vertical cylinder with a heavy piston contains air at 320 K. The initial pressure is 3.35x10^5 Pa, and the initial volume is 0.270 m3. Calculate the mass of the air in the cylinder
A uniformly charged ring of radius 10.2 cm has a charge of 87.5 µC. Find the electric field on the axis of the ring at x = 3.0 cm
If the kinetic energy of an electron is 910 eV, calculate its De Broglie wavelength. For this non-relativistic electron you must firs, calculate its velocity from the general kinetic energy equation
a train traveling at v0 25.0 ms begins to brake by applying a velocity-dependent instantaneous acceleration av alpha
A circuit consists of a 6.0V battery, a 37-mH inductor, and four 55 ohm resistors. Find the characteristic time for this circuit
Two 0.70m -long pendulums hang side by side. The masses of the pendulum bobs are 55g and 65g. To what height does the heavier bob rebound
Calculate the final equilibrium temperature assumning no heat loss after mixing occurs.
An electron moves in the positive x-direction a distance of 2.38 m in 2.95 x10-8 s, bounces off a moving proton, and then moves in the opposite direction a distance of 1.63m in 3.53x 10-8 s.
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