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A block of mass m1 = 3 kilogram is sliding across a frictionless table at a speed of v1 = 3 m/s. You send a second mass, m2 = 2 kilogram at it such that m1 will stop. Obtain the maximum energy lost in the collision.
A current-carrying wire passes through a region of space that has a uniform magnetic field of 0.76 T. determine the minimum current needed to levitate the wire
Photorefractive keratectomy (PRK) is a laser-based surgery process that corrects near- and farsightedness by removing part of the lens of the eye to change its curvature and hence focal length. What is the energy of a single photon
An east-west electric power line carries a 500-A{\rm A} current toward the east. Determine the direction of this magnetic field at Earth's surface directly under the wire
A 12.8 g bulletis fired horizontally into a 93 g woodenblock initially at rest on a horizontal surface. evaluate the speed of the bullet immediately before impact
Cars have shock absorbers to damp the oscillations that would otherwise occur when the springs that attach the wheels to the car's frame are compressed or stretched. What will the period of the underdamped oscillation of this car be if the pushing-..
Discover the tensions in the rope
a 15.0 k ohms resistor is connected in series with a capacitor and a 24.0v battery. assume the switch is closed at time
When only the front wheels of an automobile are on a platform scale, the scale balances at 7.5 kN; when only the rear wheels are on the scale, How far is its center of mass behind the front axle
A wildland fire sawyer is cutting a snag of length L = 23.5m and mass m = 880kg. He puts a Humboldt face cut on the snag which has a negligible amount of taper, what is the final angular velocity of the snag
a skateboarder starting from rest rolls down a 12.0 m ramp. when she arrives at the bottom of the ramp her speed is
As the wood flap rotates at 65.9rad/sec, it hits a switch and turns on a heater. The heater warms the bottom of a 2:0 m rod. how much has the rod grown
The vitreous humor, a transparent, gelatinous fluid that fills most of the eyeball, What are ranges of wavelength, frequency and speed of light
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