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A box of unknown mass is sliding with an initial speed vi=4.90 m/s across a horizontal frictionless warehouse floor when it encounters a rough section of flooring d=4.30 m long. The coefficient of kinetic friction between the rough section of flooring and the box is 0.100. Using energy considerations, determine the final speed of the box after sliding across the rough section of flooring.
__________m/s
As shown in the figure below, a box of mass m = 38.0 kg is sliding along a horizontal frictionless surface at a speed vi = 7.00 m/s when it encounters a ramp inclined at an angle of θ = 22.8°. The coefficient of kinetic friction between the ramp and the box is μ = 0.0704 and the box slides a distance d up the ramp before coming momentarily to rest.
Determine the distance the box slides up the ramp before coming momentarily to rest. _________m
A 2000-kg car moving with a speed of 20 m/s collides with andsticks to a 1500kg car at rest at a stop sign. Show that because momentum is conserved in the rest frame, momentum is also conservedin a reference frame moving with a speed of 10 m/s in the..
The Sun is approximately a sphere of radius 6.963 105 km, at a mean distance a = 1.496 108 km from the Earth. The solar constant, the intensity of solar radiation at the outer edge of Earth's atmosphere, is 1370. W/m2. Assuming the Sun radiates as a ..
A 7.52 nC charge is located 1.68 m from a 4.30 nC point charge. Find the magnitude of the electrostatic force that one charge exerts on the other
Sound is generated from standing waves in two tubes which are bothopen at both ends and are identical, apart from one tube havinglength L and the other tube being only seven eighths as long
an rl circuit has a v 7v battery a r 15000 ohm resistor and a l0.7h connected in series with a switch. the switch is
A tire is filled with air at 15 oC to a gauge pressure of 220 kPa. If the tire reaches a temperature of 38 oC, How much energy do you need to boil off 2 kg block of ice
A very small steel marble is shown rolling at a constant speed on a horizontal table. The marble leaves the table at L, falls, and hits the ground at P. Calculate the time it took the marble to travel from N to P
A ball is dropped from the top of a building. In the absence of air resistance, the ball will hit the ground with a speed of 49 m/s. The height of the building is
Consider the Earth and a cloud layer 800m above the planet to bethe platesof a parallel-plate capacitor. what is the maximum charge thecloud can hold
In previous units you were given a scenario and asked to demonstrate your knowledge of the concepts in this course and your ability to relate the concepts to practical situations. For your final Case Study you will need to locate your own fire and em..
A cord of length 1.4 meter is fixed at both ends. Its mass per unit length is 1.0 g/m and the tension is 11 N. Evaluate the frequency of the fundamental oscillation
Two blocks of weights 24.0 and 50.0 N are connected by as massless string and slide down an inclined plane making an angle of 23.0 deg. to the horizontal. find the magnitude of the heavier block's acceleration
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