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A 95-kg fullback is running at 4.0 m/s to the east and isstopped in 0.75 s by a head-on tackle by a tackler running duewest. Calculate
(a) the original momentum of the fullback,
(b) theimpulse exerted on the fullback,
(c) the impulse exerted onthe tackler, and
(d) the average force exerted on the tackler.
Jack and a friend skiing in the colorado mountain. they first see an avalanche on mountain side 1.5 miles away from them. what is the power the avalanche is producing the sound
If the converging lens in a slide projector has a focal length of 104.00 mm and the slide is located 109 mm from the lens, Determine the dimensions of the image of the slide
An elevator moving upward approaches the top floor of a high rise building and begins to slow down at the rate of 2.00 m/s2. Calculate the apparent weight of the passenger if her mass is 60.0 kg
A person is riding a bicycle, and its wheels have an angular velocity of 22.7 rad/s. What is the anguar acceleration (in rad/s2) of each wheel
An object is determined to have an apparentm mass of 882 g in air and 643 g when immersed in water. What is the density of the object
A car with a mass of 2400 kg is traveling at a speed of 40.0 km/h on an icy road when it collides with a 10000 kg truck which was traveling toward the car with the speed of 18 km/h. Find the change in the kinetic energy of the system
suppose a speck of dust in an electrostatic precipitator has 1.0000x1012 protons in it and has a net charge of -5.00nc
A certain radioactive material has an atomic mass of 172 and a half-life of 505 years (take 1 yr = 365.25 d). What is the activity of 0.9 g of this material?
One leg of a Michelson interferometer contains an evacuated cylinder of length L, having glass plates on each end, what is the index of refraction of the gas
A 2 kg mass is placed at rest against a spring of spring constant 5 N/m, which is compressed by 10 cm from its equilibrium position. find the amount of potential energy stored in the spring
You push a box up a ramp inclined at 26.2o using a force of 230.0N, for a distance of 10.9 m. How much work do you do in the horizontal direction
The plates of a parallel-plate capacitor have a separation of 3.68mm , and each has an area of 15.8cm^2. What is the potential difference between the plates
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