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A 81-kg fullback is running at 3.3m/s to the east and is stopped in 0.85s by a head-on tackle by a tackler running due west.
A. Calculate the original momentum of the fullback.
B. Calculate the impulse exerted on the fullback.
C. Calculate the impulse exerted on the tackler.
D. Calculate the average force exerted on the tackler.
A kayaker needs to paddle north across a 100m wide harbor. The tide is going out, creating a tidal current that flows east at 2 m/s. The kayaker can paddle with a speed of 3 m/s.
Calculate the wavelength of light in vacuum that has a frequency of 6.0 1011 Hz and What is its wavelength in water
include a free body diagram. Be sure to label all forces with their agents and size. 1. A 5.0kg cat running along suddenly braces his furry feet on the slippery floot in order to stop.
A 2.5-m-long steel wire in a musical instrument has a radius of 0.02 mm. When the wire is under a tension of 91 N, how much does its length change
A bumper car with mass m1 = 115kg is moving to the right with a velocity of v1 = 4 m/s. A second bumper car with mass m2 = 95 kg is moving to the left with a velocity of v2 = -3.7 m/s. The two cars have an elastic collision. Suppose the surface is fr..
A circular coil (660 turns, radius = 0.036 m) is rotating in a uniform magnetic field. Find the magnitude of the magnetic field at the location of the coil
A tennis player swings her 1000 g racket with a speed of 15.0m/s . She hits a 60 g tennis ball that was approaching her at a speed of 15.0m/s. compute the average force that the racket exerts on the ball
Calculate the width of the dark area between the first and second
what is the maximum deformation of the bumper. The coefficient of kinetic friction for a 25 bobsled on a track is 0.10. What force is required to push it down a 5 incline and achieve a speed of 64 at the end of 75.
determine that the auto was traveling at a speed of approximately 30 m/s upon impact with the groung. Explain how fast must the car have been moving before leaving the road?
A 2345 kg car plans to round an unbanked corner with a radius of 34m at a speed of 45mph. What is the maximum speed at which the car could make the turn if the coefficient of static friction is 1.5
A 4µF and 10uF capacitor are connected in series across a potential difference of 40 V. Find the charge on each capaacitor and the potential difference across each
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