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A 100 kg quaterback is traveling 5 m/s and is stopped by atackler in 1 second. Calculate
(a) the initial momentum ofthe quater back
(b) the impulse imparted by the tackler
(c) theaverage force exerted by the tackler.
A boy ties a small stone to one end of a string and holding the other end, he whirls the stone above his head in a horizontal circle. If the stone has a mass of 0.5 kg, find the centripetal force on the stone
Lisa in her Lamborghini accelerates at the rate of (3.00 i - 2.00 j) m/s^2, while Jill in her Jaguar accelarates at (1.00 i + 3.00 j) m/s^2. They both start from rest at the origin of an xy coordinate system.
The earth orbits the sun in an approximately circular orbit of radius 1.496 X 10^11 m (about 93 million miles) in a period of 365 1/4 days. Use these data to determine the mass of the sun
In the amusement park ride known as Magic Mountain Superman, powerful magnets accelerate a car and its riders from rest to 38 m/s (around 90 mi/h) in a time of 7.5 s. The mass of the car and riders is 3600 kg. Find the average net force exerted on th..
A cylinder with a movable piston contains gas at a temperature of 27°C, a volume of 1.5 m³, and an absolute pressure of 20,000 Pa. What will be the final temperature if the gas is compressed 2.7 m³ and the absolute pressure increases to 80,000 Pa.
The great, grey-green, greasy Zambezi River flows over Victoria Falls in south central Africa. what is the velocity of the water when it hits the bottom
One of the harmonic frequencies of tube A with only one end open is 1080 Hz. The next-highest harmonic frequency is 1320 Hz. Find the length of the tube A
A see-saw board is supported at its center by a fulcrum A 25 kg person sits 80 cm from center. How much force does the fulcrum exert on board
A block of mass m1 = 1.75 kg and a block of mass m2 = 5.90 kg are connected by a massless string over a pulley in the shape of a solid disk having radius R = 0.250 m and mass M = 10.0 kg. These blocks are allowed to move on a fixed block-wedge of ..
Light of wavelength 624 nm passes through a single slit and then strikes a screen that is 1.2 m from the slit. What is the width of the slit
The Hall voltage across a conductor in a 44mTmagnetic field is 1.9?V. What is the strength of the second field
how much work is required to accelerate a proton from rest up to a speed of 0.957c, what would be the momentum of this proton
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