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A sinusoidal wave with an amplitude of 1.5 cm and a frequency of 100 Hz travels at 200 m/s in the positive x-direction. Write the equation for the wave's displacement as it travels.
The asteroid 243 Ida has a mass of about 4.0×1016 kg and an average radius of about 16 km, How long would it take for your rock to return and hit you in the back of the head
Two cars approaching each other collide and stick together after the collision. What was the initial velocity of the second car
In the figure below a crowbar is used to lift a weight. If a down ward force of 228 N is applied to the end of the bar, how much weight does the other end bear? The crowbar itself has negligible weight. (Let r1 = 29.0 cm and r2 = 4.70 cm.)
q1.the density of the tightly compressed sugar cube is about 1.4 1.4gml. if a sugar cube weighs very close to 5 grams
a pendulum consists of a 1.6-kg bob attached to a light 3.0-m-long string. while hanging at rest with the string
A metal ball with a mass of 3.23·10-6 kg and a charge of +4.47 mC has a kinetic energy of 7.55·108 J. how close will it come to the plane before stopping
monochromaticlight of wavelength lambda 620nm from a distant sources passes through a slit 0.450 mm wide.the
Both car A and car B leave school at the same time, traveling in the same direction. Car A travels at a constant speed of 71 km/h while car B travels at a constant speed of 90 km/h. how faris car A from school 2.2 h later.
An insulating rod of length 14.0 cm is bent into the shape of a semicircle and has a uniform total charge of -7.5 uC, Calculate the magnitude and direction of the electric field at the center of the semicircle arc
two identical guitar strings are prepared such that they have the same length 2.30 m and are under the same amount of
The drive propeller of a ship starts from rest and accelerates at 2.70 x 10-3 rad/s2 for 3.10 x 103 s. For the next 1.30 x 103 s the propeller rotates at a constant angular speed. Find the total angular displacement of the propeller
An undersea research chamber is spherical with an external diameter of 5.20 m. The mass of the chamber, when occupied, is 66400 kg. find the buoyant force on the chamber
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