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A car is traveling at 61.04 mph. The driver applies the brakes and the car decelerates at 1.97 m/s2. What is the stopping distance in meters?
calculate the weight of air at 20 c in a room that measures 5.06 x 4.50 x 3.25 mpart a give your answer in newtons.
An airplane pulls a 25 kg banner on a cable as depicted in the figure below. What is the drag force exerted on the banner by the air
A container in the shape of a cube 20.0 cm on each edge contains air (with equivalent molar mass 28.9 g/mol) at atmospheric pressure and temperature 330 K. Find (a) the mass of the gas, (b) the gravitational force of the Earth exerted on it, and (c) ..
A 1.6-m wire is wound into a coil with a radius of 4.07 cm. If this coil is rotated at 105 rpm in a 0.070-T magnetic field, what is its maximum emf
q1. a 2700-kg satellite is in a circular orbit around a planet. the satellite travels with a constant speed of 6270 ms.
On a cool morning, when the temperature is 15deg Celsius, you measure the pressure in your car tires to be 30 psi. After driving 20 mi on the freeway, temperature of your tires is 45 deg Celsius. What pressure will your tire gauge now show.
A long solid cylindrical wire of radius 0.01 meters carries a current whose density (current per unit area) is given by J=0.02r^2.
What amplitude of simple harmonic motion of the spring-blocks system puts the smaller block on the verge of slipping over the larger block.
An ambulance moving at 37 m/s sounds its siren whose frequency is 500 Hz. What frequency does a person in the car hear as the ambulance approaches the car
A proton accelerates from rest in a uniform electricfield of 670 N/C. At some later instant,its speed is 1.60 X106 m/s(nonrelativistic, because v is much less than the speed of light). Find the acceleration of the proton.
A body moves with respect to a stationary reference point. At time 1.0 s, position of the body is given by vector R1 bar that points to the east of the reference point, Find the average velocity of the body
The D string of a violin is a little too tightly stretched. Seven beats per second are heard when the string is sounded together with a tuning fork that is oscillating accurately at 293.66 Hz
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