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Scenario: A man begins pushing a box from rest up a ramp angled at 22 degrees from horizontal, exerting a constant force of 500N, but he is opposed by a force of kinetic friction of magnitude 20N. a. If the length of the ramp is 3.6m and mass of the box is 40kg, what is the total work done by the time the box reaches the top of the ramp? (Hint: don't forget to also account for the work done by the component of gravity acting along the length of the ramp.) b. What is its speed at the top of the ramp? c. By the time he reaches the top, the box is now at a height of 1.35m from the ground. What is the box's potential energy? d. Suppose the man brings the box to a rest once he reaches the top, but it begins to topple off the side of the ramp and fall straight down to the ground. How fast will it be traveling when it hits the ground? e. If it takes 2.1 x 10^-3 seconds for the box to be stopped by the impact, with what average force will it hit the ground?
Earlier we described the fact that entrepreneurs score significantly lower than managers on agreeableness. Explain how would you reconcile this finding with Sutton's point?
If i have a hollow copper sphere that has an outer diameter of 20.00 cm that is floating so that everything is just submerged in a bucket of water
On an air track, a 402.0g glider moving to the right at 2.25m/s collides elastically with a 498.0g glider moving in the opposite direction at 2.90m/s. Find the velocity of second glider after the collision
A block of mass M= 100 kg is sliding down an inclined at an angle q= 30 degree above the horizontal. Find the acceleration of the block down the incline
A performer, seated on a trapeze, is swinging back and forth with a period of 9.95 s. what will be the new period of the system
What is a stopping distance
Kinetic friction is a constant-value force, while static friction changed in response to other forces, up to some maximum, What if static friction behaved more like kinetic friction, with same constant value
The secondary colors, cyan, magenta, and yellow, can each be obtained by subtracting a color from white light. Which primary color is subtracted in each case
Consider a spherical Gaussian surface and three charges: q1 = 1.62?C , q2 = -2.45?C , and q3 = 3.57?C . Find the electric flux through the Gaussian surface
A ranger in a national park is driving at 32.0 mi/h when a deer jumps into the road 200 ft ahead of the vehicle. What is the maximum reaction time allowed
Two tiny conducting spheres are identical and carry charges of -21.4C and +51.0C. They are separated by a distance of 3.30 cm. (a) What is the magnitude of the force that each sphere experiences?
Consider a cube of sides a = 4.60 m, as shown in the diagram below. Suppose that an electric field is present and is given by E = bxn, Calculate the magnitude of the total charge within the cube
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