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A 1248.0 g mass is on a horizontal surface with ?k = 0.36, and is in contact with a massless spring with a force constant of 790.0 N/m which is compressed. When the spring is released, it does 1.42 J of work on the mass while returning to its equilibrium position. Calculate the distance the spring was compressed.
What is the velocity of the mass as it loses contact with the spring?
The equation of a transverse wave traveling in a string is given by y=A sin(k x??t). The tension in the string is 18.0 N, A = 1 mm, k = 22 rad/m, ? = 325 rad/s. What is the linear density of the string. I have the speed of the wave but i cant get ..
The crates are pulled to the right at a constant acceleration 3m⁄s^2 by a horizontal force F. Calculate (a) the magnitude of the force F and (b) the tension in the rope connecting the blocks. Include the free body diagram or diagrams you used.
One runner ran the 100-m dash in 11.9 s. Another runner came in secona at 12.4 s. Assuming that the runners traveled at their average speeds for the entire distance, determine the sepaaration between the two runners when the winner crossed the fin..
imagine that you spill a cup (250 g) hot water, initially at 75 C, onto the cold ground on a winter fay, Calculate the net change in the entropy of the universe due to this process, and comment on the result
A water molecule, which is electrically neutral but has a dipole moment of magnitude p = 6.20·10-30 C m, is 3.20 cm away from a point charge q = +6.90 ?C, Calculate the magnitude of the net force
A bicycle and rider have a combined mass of 100 kg. How many calries of heat are generated in brakes when the bicycle comes to a stop from a speed of 36 km/h.
A bullet is fired into a block of wood sitting on a block if ice. The bullet has an initail velocity of 500m/s and a mass of 0.005 kg. The wooden block has a mass of 2kg and is initially at rest.
Find the force necessary to start the crate moving, given that the mass of the crate is 32 {rm kg} and the coefficient of static friction between crate and floor is 0.60.
When a potential difference of 140 V is applied to the plates of a parallel-plate capacitor, plates carry a surface charge density of 27 nC/cm2. What is the spacing between the plates.
How many 95W light bulbs can you use in a 120V circuit without tripping a 17A circuit breaker? (The bulbs are connected in parallel, which means that the potential difference across each light bulb is V.)
Determine the vertical component. when would a microphone at the other end first detect a disturbance.
A 124 balloon carrying a 22 basket is descending with a constant downward velocity of 25.2. A 1stone is thrown from the basket with an initial velocity of 19.9 perpendiculars to the path of the descending balloon.
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