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Q. A 515-g block slides along a frictionless surface at a speed of 0.350 m/s. It runs into a horizontal massless spring with spring constant 56-N/m that extends outward from a wall. It compresses the spring, and then is pushed back in the opposite direction by the spring, eventually losing contact with the spring.
Q. A balloon of volume 3.00 m3 contains argon gas at a pressure of 6.00 times 105 Pa and room temperature (20 degrees C). What is the total internal energy of the gas?
A ball is thrown directly downward with an initial speed of 8.50 m/s, from the height of 29.5 m. After what time interval does it strike the ground.
How various lines per centimeter does a grating have if the third-order occurs at a 23.0 degree angle for 630-nm light.
An average temperature of the rest of the universe
A force F = 200i - 400j + FZ k N, is acting through point A(0,0,0) m.
A charge of -4.00 nC and a charge of -6.10 nC are separated by the distance of 60 cm. Find out the position at which a third charge of +7.90 nC can be placed so that net electrostatic force on it is zero.
A 13.30 kg crate is pulled by an 181N force (parallel to the incline) up a rough incline. Assume that the incline makes an angle of 31.80° with the horizontal and that the coefficient of kinetic friction is 0.436.
How long does it take the crate to hit the ground. suppose that the plane continues to fly with the same velocity.
A tennis ball rolls off the edge of a tabletop of height 0.850m above the floor and strikes the floor at a point a horizontal distance 1.80 m from the edge of the table. You can ignore air resistance. Find out the time of flight.
Dennis, driving his 600 kg car, makes a 90 degree turn. His speed before the turn is 15.0 m/s and after the turn are 20 m/s. What is the magnitude of the change in car's momentum.
What is the apparent weight of a 75 kg astronaut.
Let the x axis be parallel to the ground, +y direction be vertically upward, and take as an origin the point on the ground directly below the top of the ramp.
Stone with a mass of 0.800 {rm kg} is attached to one end of a string 0.900 {rm m} long. The string will break if its tension exceeds 65.0 {rm N}. The stone is whirled in a horizontal circle on a frictionless tabletop; the other end of the string rem..
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