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What is the differences between directed motion and random motion when talking about Physics? Is Newton's Law being applied?
As steady force of 2000 N is used for 8seconds to accelerate a 1500 kg car which was initially going 20m/s. a.) What impulse was given to the car? b.) What was the change in momentum of the car?
Light of wavelength 517 nm in air enters a fishbowl full with water, and then exits during the crown-glass wall of the container. What is the wavelength of the light in the water? The refraction index for water is 1.333 and for crown-glass 1.52.
An observer to the right of the mirror-lens combination shown in the figure below sees two real images that are the same size and in the same location. One image is upright and the other is inverted. Both images are 1.90 times larger than the object.
You pull a 14 kilogram box across the floor with a strap that is at an angle of 34 degree above the horizontal. Compute the normal force and the tension in strap
A railroad car of mass 3.4 x 104 kg moving at 4.00 m/s collides and couples with two coupled railroad cars, What is the speed of the three coupled cars after the collision
A sample of isotope of 131 Iodine (half-life of 8.04 days) has activity of 5.8 mCi at the time of shipment. How much time has elapsed between the two measurements
A ball in uniform circular motion with a centripetal acceleration of 12.0 m/s2 has an angular velocity of 3.00 rad/s.
A student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 15.8 m/s. Find at what angle below the horizontal does it land
An antique phonograph turntable has a kinetic energy of 2.60×10?2 J when turning at an angular velocity of 47.0 rev/min
A thin piano-convex lens s made of flint glass which has an index of refraction of 1.64 for red light and 1.69 for violet light, if the radius of curvature of the surface of the lens s 20 cm, what s the dissimilarity in focal length of the lens for ..
a pendulum of length 50 cm is pulled 30 cm away from thevertical axis and released from rest. What will be its speed at the bottom of its swing
A woman performs a vertical jump. How much work was done on this woman during the jump? The jump begins in the standing position and ends the instant the woman leaves the floor.
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