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What is the (average) acceleration of a vehicle which speeds up from 22 m/s to 88 m/s in 21.2 seconds?
please provide work to explain
The electric field of a uniform plane wave propagating in a perfect dielectric medium having m = m0 is given by E = 10 cos (6p * 107t - 0.4pz) ax V/m. Find (a) the frequency, (b) the wavelength, (c) the phase velocity, (d) the permittivity of the..
A wheel free to rotate about its axis that is not frictionless is initially at rest. A constant external torque of +52 N·m is applied to the wheel for 15 s, giving the wheel anangular velocity of +520 rev/min.
How did the capitalists who shaped post-Civil War industrial America by using questionable methods earned the title of "robber barons"?
You are flying in a 60,000 kilogram plane that is climbing in a straight line at an angle of 15o above the horizontal from an altitude of 9000 meter to an altitude of 11,000 meter with a constant speed of 220 m/s. Obtain the net force acting on the..
The light has a wavelength of 625 nm and has passed through a diffraction grating with a slit separation of 2.80x10^-6 m.
A pilot, whose mass is 72.0 kg, makes a loop-the-loop in a fast jet. Assume that the jet maintains a constant speed of 185 m/s and that the radius of the loop-the-loop is 1.570 km, What is the pilot's apparent weight at the top of the loop-the-loop
A stuntman testing a bungee-cord apparatus hangs a bag of sand from the bungee and pulls down to start the sand bag oscillating. What is the period of this motion
In the high jump, Fran's kinetic energy is transformed into gravitational potential energy without the aid of a pole. Estimate with what minimum speed must Fran leave the ground
A 30g dart is shot straight up at 10 m/s . At the same instant, a 21g ball of cork is dropped from 2.8m above the dart. What is the speed of the cork ball immediately after it is hit by the dart
at a certain point when a spring is stretched near its elastic limit the spring force satis?es the equation f -alpha x
A fixed 0.18-{\rm kg} solid-disk pulley with a radius of0.075 m is acted on by a net torque of 6.4 m \cdot N. What is the angular acceleration of the pulley
The traffic in a large city is to be studied. Explain how it would be done using (a) the Lagrangian approach and (b) the Eulerian approach.
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