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Three identical (massless) springs are hung from the ceiling.
Spring 1: Nothing hung from spring. The spring's bottom is0.2 m below the ceiling.
Spring 2: A 5 N object is hung from the spring. The spring's bottom is 0.6 m below the ceiling.
Spring 3: An object of unknown weight is hung from the spring. The spring's bottom is 0.8 m below the ceiling.
a) Discover the spring constant that each spring has in. __________ N/m
b) Discover the weight of the unknown object._________ N
Assume unpolarized light of intensity 197 W/m2 falls on the polarizer in the figure, and the angle in the drawing is 37.0°. What is the light intensity reaching the photocell?
a neutral particle is at rest in a uniform magnetic field b. at time t 0 it decays into two charged particles each of
A 200 lbs guy wants to slide down a plastic slide 24 ft long and on a 30 degree angle, after that the slide goes horizontally for 6 feet. Taking friction into consideration, how fast would he be going down the slide.
Four identical metallic objects carry the following charges: +8.2 µC, +7.0 µC, -2.6 µC, and -9.2 µC. What is the final charge on each object
At the Earth's surface a projectile is launched straight up at a speed of 8.4 km/s. To what height will it rise
A block with a mass of 0.148 kg is traveling at 8.4 m/s on a horizontal, frictionless surface when it hits a spring with a spring constant of 722 N/m. What is the maximum amount the spring is compressed
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Two astronauts are 1.0 m apart in their spaceship. One speaks to the other. The conversation is transmitted to earth via electromagnetic waves.
A spring is stretched a distance of Dx = 40 cm beyond its relaxed length. Attached to the end of the spring is an block of mass m = 12 kg, which rests on a horizontal frictionless surface. what is the speed of the attached object
one gram of water changes from liquid to solid at a constantpressure 1.00 atm and a constant temperature of 0degrees. Find the work done on the water
A fully loaded Boeing 777 commercial airplane with a mass of 303.6 tonnes is at one end of the runway and about to take off. Calculate the length of the runway
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