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A 525-g squirrel with a surface area of 925 cm2 falls from a 4.0-m tree to the ground. Estimate its terminal velocity. (Use the drag coefficient for a horizontal skydiver. Assume that the cross-sectional area of the squirrel can be approximated as a rectangle of width 11.5 cm and length 23 cm. Note, the squirrel may not reach terminal velocity by the time it hits the ground. Give the squirrel's terminal velocity, not it's velocity as it hits the ground.) m/s
What will be the velocity of a 52.5-kg person hitting the ground, assuming no drag contribution in such a short distance? m/s
A 0.73-kg mass is hanging from a spring with spring constant 13 N/m. What is the resulting period of the oscillation
A can of sardines is made to move along an x axis from x = 0.36 m to x = 1.40 m by a force with a magnitude given by F = exp(-4x), How much work is done on the can by the force
At an accident scene on a level road, investigators measure a van's skid mark to be 86 meter long. estimate the speed of the van when the driver slammed on (and locked) the brakes
A 7.80-g bullet moving at 550 m/s penetrates a tree trunk to a depth of 6.1 cm. Use work and energy considerations to find the average frictional force that stops the bullet
A typical ten-pound car wheel has a moment of inertia of about 0.35 kg(m^2). What is the rotational kinetic energy of the rotating wheel
5.00 kg object placed on frictionless, horizontal table is connected to a cable that passes over a pulley and then is fastened to a hanging 9.00kg object as shown below. Draw free body diagram of both. Find the acceleration of both objects and ten..
In a Broadway performance, an 89.8-kg actor swings from a 4.50-m-long cable that is horizontal when he starts. What maximum height do they reach after their upward swing
Consider a square which is 1 meter on a side. Find the magnitude of the electric field at the square center
A thin spherical shell has a radius of 2.8 m and a mass of 270 kg, and its center is located at the origin of a coordinate system. Another spherical shell with a radius of 1 m and mass 100 kg is inside the larger shell with its center at 0.6 m on the..
The resistance of the primary and secondary coils of a transformer are 56 and 14Ω, respectively. Both coils are made from lengths of the same copper wire. The circular turns of each coil have the same diameter. Discover the turn’s ratio Ns/Np
Perform the experiment for each of the angles 15 degrees - Perform the experiment with the initial velocities.
Two forces act on a 6.00- kg object. One of the forces is 10.0N. If the object accelerates at 2.00 m/s 2, what is the greatest possible magnitue of the other force
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