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Question: The longest pass in NFL history is approximately 86.9 m. Ignoring the effects of air resistance,
Part A: Calculate what must have been the initial speed of the football.
I know the correct answer for above question but explain how to get this answer! Thanks.
Mass of box is 1.5kg starts with an initial velocity of 3m/s in the direction opposite ot that of the force. What is the final kinetic energy of the box
A 40-N crate starting at rest slides down a rough 6.0-M long ramp, inclined at 25 degrees with the horizontal. 30J of energy is lost to friction. What will be the speed of the crate at the bottom of the incline?
question a rod rests on frictionless ice. forces that are equal in magnitude and opposite in direction are
A tank with a volume of 0.150 m contains 27.0 degrees celcius helium gas at a pressure of 100 atm. How various balloons can be blown up if each filled balloon so a sphere 30.0 cm in diameter at 27.0 and absolute pressure of 1.20atm .
Suppose that a parallel-plate capacitor has circular plates with radius R = 40.0 mm and a plate separation of 4.0 mm. Suppose also that a sinusoidal potential difference with a maximum value of 340 V and a frequency of 120 Hz is applied across the..
A model of a red blood cell portrays the cell as a sphericalcapacitor, a positively charged liquid sphere of surface areaA separated from the surrounding negatively charged fluidby a membrane of thickness t.
question a boy of mass 40 kg wishes to play on pivoted seesaw with his dog of mass 15 kg. when the dog sits at 3 m from
A container holds 2.3 mol of gas. The total average kinetic energyof the gas molecules in the container is equal to the kineticenergy of a 7.6x10-3 kg bullet with a speed of 550 m/s. What is the Kelvin temperature of the gas
It's nighttime, and you've dropped your goggles into a swimming pool that is 4.5m deep. How far are the goggles from the edge of the pool
An inductor with an inductance of 2.70H and a resistance of 7.20(phi) is connected to the terminals of a battery with an emf of 5.80V, Find the final steady-state current
An ice-cube tray contains 0.332 kg of water at 18.5C. How much heat must be removed from the water to cool it to 0 degreesC and freeze it? Express your answer in joules
A Force F of magnitude 2.04 N is applied to a block of mass1.00 kg in the opposite direction to the normal force on an inclinethat is angled at 37.1 degree to the horizontal. What is the value of the coefficient of static friction
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