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Question: A bicyclist rides down a hill to a long flat road. The bicycle and the bicyclist together weight 150 N. At the bottom of the hill the bicyclist has a speed of 20 m/s. If the bicyclist just coasts at the bottom of the hill she travels 215 m.
Part I: Determine the magnitude of the frictional force (assumed constant) that acts on the bicycle.
I want help to compute the magnitude of the frictional force (assumed constant) that acts on the bicycle.
A window washer of mass 86 kg stands at a distance d from the midpoint of the scaffold. The tension in the cable nearest the worker is twice the tension in the other. Illustrate what is the tension in the cable nearest the worker? What is the tens..
An engine absorbs 1699 Joule from a hot reservoir and expels 1199 Joule to a cold reservoir in each cycle. Compute how much work is done in each cycle
One mole of a ideal gas initially at temp To=0C undergoes an expansion at a constant pressure of 1atm to four times it original volume
As you zip through space in your PPS (personal propulsion suit), your pulse rate, as you count it, is 115 bpm. Obtain how fast are you moving with respect to the Moon
You have 11 meter of 0.60 millimeter diameter copper wire and a power supply capable of passing 25Amp through the wire. Find what magnetic field strength would you obtain
A projectile is launched with a velocity of 20m/s at 60o with the ground. at what angle are the magnitudes of the components equal
The speedometer of a truck shows the linear velocity of the truck but actually measures the angular velocity of the wheels and converts that to the linear velocity. If the tires are changed out and larger diameter tires replace the stock tires, does ..
Water is flowing through a pipe with a constriction. The diameter of the narrow section is one-third the diameter of the wide section. what is the velocity of the fluid in the wide section
A plane mirror is lying flat in the x-y plane with its reflecting surface facing up. A point source of light is located at (x=0.0 m, y=2.0 m, z=3.0 m). What is the distance from the object to the image
An astronaut on a spaceship traveling at 0.75c relative to Earth measures his ship to be 29m long. On the ship, he eats his lunch in 23min. What length is the spaceship according to observers on Earth
A block of mass m=3.15kg is pushed a distance d=2.05m along a frictionless horizontal table by a constant applied force of magnitude F=16.0N directed at an angle Theta=38.0 degrees below the horizontal
What is the mean number density of galaxies within the half mass radius? Suppose the typical physical cross section of a galaxy is 10^-3 Mpc^2
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