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A box that weighs 10lbs is pushed along a surface by a variable force, F=0.1t^0.5 lbs. What is the velocity (in ft/s) of the box after 6 seconds? Assume the box starts from rest, and assume there is no friction between the box and the surface.
Light from a monochromatic source shines through a double slit onto a screen 5.0 m away, What is the wavelength of the incident light
In a tennis serve, a 0.070 kg ball can be accelerated from rest to 36 m/s over a distance of 0.75 m. Find the magnitude of the average force exerted by the racket on the ball
A car is traveling at 66.2 mph. The driver applies the brakes and the car decelerates at 1.3 m/s2. What is the stopping distance
A simple pendulum consists of a ball connected to one end of athin brass wire. evaluate the change in the period of the heated pendulum
One particle has a mass of 4.41 x 10-3 kg and a charge of +6.92 ?C. A second particle has a mass of 6.52 x 10-3 kg and the same charge. The two particles are initially held in place and then released.
A flight attendant pulls her 70.10 N flight bag a distance of 258 m along a level airport floor at a constant speed. The force she exerts is 36.30 N at an angle of 52.0° above the horizontal.
An object falls from a height h from rest. If it travels a fraction of the total height of 0.6995 in the last 1.00 s, Find the height of its fall
A series R–L–C circuit of R= 210ohms , L= 0.950H and C= 2.25uF carries an rms current of 0.270A with a frequency of 100Hz. What is the average rate at which electrical energy is converted to heat in the resistor? P(R)= W What average power is deliver..
A fish is 2 m below the surface of a smooth lake. What is the diameter of circle on the surface through which the fish can see the world outside the water
Two charged spheres are 19 cm apart. They are moved, and the force on each of them is found to have been quadrupled. How far apart are they now.
A sound wave in air has a frequency of 264Hz and travels with a speed of 347m/s. How far apart are the wave crests
How is single slit diffraction pattern and intensity affected by the width of the slit, the distance of the slit from the screen, Which of these parameters affects the pattern most
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