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A sled of mass m is given a kick on a frozen pond. The kick imparts to it an initial speed of vi = 2.00 m/s. The coefficient of kinetic friction between sled and ice is µk = 0.150. Use energy considerations to find the distance the sled moves before it stops.
m
A spaceship of mass 2.30×106kg is cruising at a speed of 5.30×106m/s when the antimatter reactor fails, What is the speed of the third piece
An ac generator with a frequency of 135Hz and an rms voltage of 20.5V is connected in series with a 11.0 kOhms resistor, What is the rms current in this circuit
For a real train the friction between the car and the track can be described by a friction coefficient, μ. Find out this coefficient assuming that the time it takes for the car to come to rest is 3 s.
A hydrogen atom consists of a single proton and a single electron. Experimentally it is found that it takes 13.6eV of energy to strip the electron from the proton. calculate the size of the hydrogen atom
a worker exposure to noise in a given plant is measured as follows during various time periods in an 8-hour shifta.
Block 1, of mass m1 = 1.70kg , moves along a frictionless air track with speed v1 = 25.0m/s, Find the magnitude pi of the total initial momentum of the two-block system
A stream of water strikes a stationary turbine blade horizontally. The incident stream has a velocity of +16m/s whilst the exit has a velocity of -16m/s. mass of water per second that strikes the blade is 30kg/s.find the magnitude of average force ex..
A diver beneath the surface of water in a lake looks up at 27 degrees from the vertical to see a life ring floating on the surface. How far is the base of the smokestack from the life ring
A concrete highway curve of radius 60 m is banked at a 13.0^circ angle. What is the maximum speed with which a 1300 kg rubber-tired car can take this curve without sliding? (Take the static coefficient of friction of rubber on concrete to be 1.0.)
A spherical cavity of radius 4.31 cm is at the center of a metal sphere of radius 15.0 cm, Determine the electric field at a point 3.06 cm from the center of the cavity
The moon's diameter is 3.48 x 10 6 m, and its mean distance from the earth is 3.85 x 10 8 m. what is the diameter of the moon's image on the screen
A simple pendulum is made of a small blob of mass m = 9.500 kg attached to the end of an inextensible wire. What is the magnitude of the tension in the wire
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