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You buy a plastic dart gun, and being a clever physics student you decide to do a quick calculation to find its maximum horizontal range. You shoot the gun straight up, and it takes 4.6 s for the dart to land back at the barrel. What is the maximum horizontal range of your gun (in meters)?
A car with a total mass of 1.43 103 kg has wheels of radius 29.0 cm and moment of inertia 0.885 kg · m2. Find the car's rotational energy when the car is moving at a speed of 22.0 m/s
There is a uniform magnetic field present, given by B=0.003 i + 0.004 j + 0.002 k, where i,j,k are the unit vectors along the cartesian coordinate axes in units of Tesla. Compute the y-component of the magnetic force acting on a segment of wire of..
An elevator weighing 2500 N ascends at a constant speed of 8.0 m/s. How much power must the motor supply to do this
The front 1.20 m of a 1600 kg car is designed as a "crumple zone" that collapses to absorb the shock of a collision.
Two people pull as hard as they can on horizontal ropes attached to a boat that has a mass of 200 kg. If they pull in the same direction, the boat has an acceleration of 1.59 m/s2 to the right. If they pull in opposite directions, the boat has..
Find out kinetic energy of the merry-go-round
A parachutist bails out and freely falls 61 m. Then the parachute opens, and thereafter she decelerates at 2.3 m/s2. How long is the parachutist in the air
A small plastic sphere with a charge of -5.0 nC is near another small plastic sphere with a charge of -15 nC, what is the distance between the spheres
A current loop, carrying a current of 4.0 A, is in the shape of a right triangle with sides 30, 40, and 50 cm. Find the magnitude of the magnetic dipole moment of the loop
The blackbody radiation emitted from a furnace peaks at a wavelength of 3.4 10-6 m(0.0000034 m). What is the temperature inside the furnace
What is the distance (in mm) separating the violet (lambda = 400nm) in the first-order band from the red (lambda = 600nm) in the second order.
Light of wavelength 653.0 nm is incident on a narrow slit. The diffraction pattern is viewed on a screen 83.5 cm from the slit. obtain the width of the slit
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