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A surface completely surrounds a 4.5 × 10-6 C charge. Find the electric flux through this surface when the surface is (a) a sphere with a radius of 0.66 m, (b) a sphere with a radius of 0.30 m, and (c) a cube with edges that are 0.65 m long.
In photo like the Hubble Deep Field, we see galaxies in many different stages of their lives. In general, which galaxies are seen in the earliest (youngest) stages of their lives.
A 1000 kg car carrying four 76 kg people travels over a rough "washboard" dirt road with corrugations 4.0 m apart which causes the car to bounce on its spring suspension. The car bounces with utmost amplitude when its speed is 18 km/h. The car now ..
A 400 g lemming (does anyone remember that old computer game?) waddles horizontally off a small 4.90 m high cliff with a speed of 0.5 ms-1.How far from the base of the cliff will the lemming land? What will be the lemmings speed upon landing.
In 0.181s, through a distance of 8.05 m, a test pilot's speed decreases from 88.9m/s to 0m/s. If the pilot's mass is 70 kg, how much work is done against his body.
A block of mass m = 0.2 kg, in simple harmonic motion, has an amplitude of 3.5 cm and a maximum speed of 70 cm/s. What is the potential energy of the system when the block is 2 cm away from the equilibrium position?
Three blocks, each of mass 12 kg are on the frictionless table. A hand pushes on the left most box (A) such that the three boxes accelerate in the positive horizontal direction as shown at a rate of a = 1.1 m/s2. What is the net horizontal force on b..
A two-ended "rocket" that is at first stationary on a frictionless floor, with its center an origin of an x axis.
Why is it sometimes better to use a small telescope in orbit around the Earth than it is to use a large telescope on a mountaintop?
A platform moves up and down in SHM, with amplitude 0.050 m. Resting on top of the platform is a block of wood. What is the shortest period of motion for the platform so that the block will remain in constant contact with it?
While a roofer is working on a roof that slants at 44.0 above the horizontal, he accidentally nudges his 93.0 toolbox, causing it to start sliding downward, starting from rest.
The cord between the pouch and the person's hand has negligible mass and will break when the tension in the cord is 33.0 N or more. Assume the sling thrower could gradually increase the speed of the stone.
Find the total work done on the car
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