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a spring is pressed against a wall so that it is compressed by 0.25 m (ie it is 0.25 m shorter than its equilibrium length). the spring is then released. the spring constant is k= 35 N/m and the spring weighs 50 g. what is the speed at which the spring leaves the wall?
Starting from one oasis, a camel walks 50 km in a direction 30° south of west and then walks 30 km, What is the distance in km between the two oases
A 71.0kg football player is gliding across very smooth ice at 2.00m/s, What is the player's speed afterward if the ball is thrown at 18.0m/s relative to the ground
A rectangular block of ice 12 m on each side and 1.2m thick floats in sea water. The density of the sea water is 1025 kg/m3. The density of ice is 917kg/m3.
A single circular loop piece of copper wire has a radius (r) of 12 cm. What is the average electrical energy dissipated in the resistance of the wire
If the beam now strikes the top of a building standing directly at the water's edge, find out the height of the building.
There are three point charges on the x-axis. One is at the origin and has a charge of 4 coulombs. The second is at 0.2 meters, What is the elctric potential energy of this arrangement
A ball on a porch rolls 60cm to the porch's edge, drops 40cm, continues rolling on the grass, and eventually stops 80cm from the porch's edge. What is the magnitude of ball's total displacement, in centimeters.
If a person can jump a maximum horizontal distance (by using a 45° projection angle) of 2.2 m on Earth, what would be his maximum range on the Moon, where free-fall acceleration is g/6 and g = 9.80m/s2.
Then, a thin conducting wire connects the spheres, redistributing the charge on each sphere. When the wire is removed the spheres still repel but with a force of F2 = 0.100 N. Using this information, find the initial charge on each sphere, q1 and ..
a pumpkin is pushed horizontally at a speed of 2.2 m/s off of a desktop that is 0.8 meters above the floor. how far frome the base of the desk
If you are designing a lander for Venus in the shape of a hemisphere 2.6m in diameter, how many newtons of inward force must it be prepared to withstand due to the Venusian atmosphere
A parallel-plate capacitor has 1.65 cm2 plates that are separated by 4.17 mm with air between them, how much energy does it store
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