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A vehicle starts from rest and accelerates to 4.0 m/s2 for 5 seconds, then maintain that velocity for 10 second, and then decelerates at the rate of 2.0 m/s2 for 4 second. Determine what is the final speed of the vehicle?
Neutron stars, such as the one at the center of the Crab Nebula, what would you weigh on the surface of a neutron star that has the same mass as our sun and a diameter of 20.0 km
A rocket is fired at a speed of 75.0 m/s from ground level, at an angle of 66.3° above the horizontal. By how much does the rocket clear the top of the wall
What is the radius r of the iron ball?
A steady current, I flows through a wire of radius R. Find the magnetic field inside and outside the wire if a uniform current density, K=Ko(z-hat) flows on the surface of the wire, s = R , like in a superconductor.
A cylindrical iron wire of length 16 m is connected to the terminals of a .3 V battery. What is the diameter of the wire, in mm
In a playground, a wooden horse is attached to the ground by a stiff spring. When a 24 kilogram boy sits on the horse, the spring compresses by 28 centimeter. Find the oscillation frequency of the spring
A light source of wavelength λ illuminates a metal and ejects photoelectrons with a max KE of 1.00eV, Find what is the work function of the metal
Air is trapped above liquid ethyl alcohol in a rigid container. If the air pressure above the liquid is 1.10 atm, determine the pressure in the bulb inside a bubble 4.0 m below the surface of the ethanol.
A particle with a charge of +8.7 ?C and a speed of 45 m/s enters a uniform magnetic field whose magnitude is 0.35 T. find the magnitude of the magnetic force on the particle
A mass of .75 kg oscillates on a light spring, and another .75kg oscillates as the bob of a simple penulum in SHM. If the pendulum length is .3m, what whould be the spring constant of the spring if the periods of oscillation are equal?
A transverse harmonic wave travels on a rope according to the following expression: y(x,t) = 0.15sin(2.2x + 17.4t), What is the average speed of the rope during one complete oscillation of the rope
What is the difference between mass and weight? On earth, what is the weight of a 1 kg mass?
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