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A bicyclist travels in a circle of radius 29 meter at a constant speed of 5 m/s. The bicycle-rider mass is 76 kilogram.
a) Find the magnitude of the force of friction on the bicycle from the road
b) Find the magnitude of the net force on the bicycle from the road?
a vertical right circular cylindrical tank measures 30ft high and 20 ft in diameter. it is full of oil weighing 51.2
find how much energy is needed to remove one of the neutrons from a 3h atom to yield a 2h atom plus a neutron.the rest
A friend of yours is loudly singing a single note at 410 Hz when racing toward you at 26.1 m/s on a day when the speed of sound is 339 m/s. What frequency does your friend hear if you suddenly start singing at 410 Hz.
A box weighing 300N is shoved across the floor of an apartment by a force of 400 N exerted downward at an angle of 35.2° below the horizontal. If the coefficient of kinetic friction between the box and the floor is 0.540, how long does it take to mov..
A racquetball with a diameter of 5.6 cm and a mass of 42 g is cut in half to make a boat for American pennies made after 1982. The mass and volume of an American penny made after 1982 are 2.5 g and 0.36 cm3. How many pennies can be placed in the r..
A 10.0g bullet is fired horizontally into a 101g wooden block that is initially at rest on a frictionless horizontal surface and connected to a spring having spring constant 141 N/m. The bullet becomes embedded in the block. If bullet-block system co..
A car comes to a bridge during a storm and finds the bridge washed out. The driver must get to the other side, What is the speed of the car just before it lands safely on the other side
a lightning bolt delivers a charge of 37 c to the ground in a time of 1.0 x 10-3 s. what is the current?the heating
Michael and Misty are standing motionless together on the ice at the center of a very slippery frozen pond. what is Michael's acceleration
A baseball player hits a ball at 49.2m/s at an angle of 29.0 degrees above the horizontal. The outfield bleachers are 145 m away from the home plate.
Four point charges, each with Q = 8.8 µC, are arranged at the corners of a square of edge length 1.4 m. What is the electric potential at the center of the square
A vertical spring (spring constant =175 N/m) is mounted on the floor. A 0.470-kg block is placed on top of the spring and pushed down to start it oscillating in simple harmonic motion. Obtain the frequency (in Hz) of the motion
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