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When a water gun is fired while being held horizontally at a height of 1.00 m above ground level, the water travels a horizontal distance of 4.90 m. A child, who is holding the same gun in a horizontal position, is also sliding down a 45° incline at a constant speed of 2.02 m/s. If the child fires the gun when it is 1.0 m above the ground and the water takes 0.3289 s to reach the ground, how far will the water travel horizontally?
A certain conductor has 7.60 1028 free electrons per cubic meter, a cross-sectional area of 4.00 ? 10-6 m2, Find the drift speed of the electrons in the conductor
A hollow metal sphere has inner radius a, outer radius b, and conductivity sigma. Evaluate the electric field strength at the inner surface of a copper sphere if 0.70cm and 28A
You are designing a sensor to detect biological pathogens in drinking water. Your sensor is based on a cantilever which is micromachined from silicon, with a length of 300m, a width of 100m, and a thickness of 1m.
Blue light (λ = 450 nm) shines on a diffraction grating that has 4000 lines/inch. Calculate the angle of the fourth-order image.
Two identical conducting small spheres are placed with their centers 0.395 m apart. Find the electric force exerted by one sphere on the other
How much work would it take to move a positive charge, 1uC, from the negative side of a parallel plate combination to the positive side when the voltage difference across the plates is 100V
A wave has the following properties: amplitude = 0.559 m, period = 0.801 s, wave speed = 13.9 m/s. What is the equation for the wave
A tiger leaps horizontally from a 6.5 m high rock with a speed of 4.1 m/s. How far from the base of the rock will she land
A high-energy pulsed laser emits a 1.5-ns-longpulse of average power 1.8×1011W. find Determine the energy delivered in each pulse.
What is the frequency of the note played by this pipe.
A spring with spring constant 40N/m is attached to the ceiling, and a 5.5-cm-diameter, 1.5kg metal cylinder is attached to its lower end. what length of the cylinder is submerged
A tee consisting of two thin rods each having a mass of M and with lengths L1 and L2, Find the rotational velocity of the tee-clay ball combination just after the collision
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