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a spring with spring constant k = 170 N/m is at the top of a frictionless incline of angle θ = 38°. The lower end of the incline is distance D = 1.0 m from the end of the spring, which is at its relaxed length. A 2.4 kg canister is pushed against the spring until the spring is compressed 0.16 m and released from rest.
(a) What is the speed of the canister at the instant the spring returns to its relaxed length (which is when the canister loses contact with the spring)?
(b) What is the speed of the canister when it reaches the lower end of the incline?
Three liters (3000 cm3) of oil is spilled onto a smooth lake. If the oil spreads out uniformly until it makes a circular oil slick just one molecule thick, estimate the diameter of the oil slick
2 equal charges are seperated by 33 mm and experiences a repulsion force of 9 Newton. Calculate the amount of each charge in micro Coulombs.
At 20 degree C, the carbon resistor in an electric circuit connected to a 6.3-V battery has a resistance of 2.9 x 10^2 ohm. What is the current in the circuit when the temperature of the carbon rises to 76 degree C? mA
A cylindrical aluminium pipe of length 1.42 m has an inner radius of 1.90*10-3 m and an outer radius of 2.90*10-3 m. The interior of the pipe is totally filled with copper. What is the resistance of this unit?
A hunter is standing on flat ground between two vertical cliffs that are directly opposite one another. find the distance between the cliffs
Derive the expression for the volume of liquid passing per seconds, V, through a pipe when the flow is steady. Assuming that v is proportional to (i) the coefficient of viscosity n of the liquid
What is the total force on an object if 47.2 pounds upward, and 59.3 lb to the right are acting on it? answer sketching the diagram and show mathematical calculation.
boral is a commercial shielding material consisting of approximately equal parts by weight of boron carbide b4c and
Illustrate what is the average force exerted on the ball by the bat? Neglect the weight of the bat, since it is so much less than the force of the bat. Choose the direction of the incoming ball as the positive direction.
A cart of mass M = 1.6 kg can roll without friction on the level track. A light string draped over a light, frictionless pulley connects the cart to a hanger with mass m = 0.7 kg.
Assuming that the depth of Earth's atmosphere is 100.0 km, what is the total charge incident on the atmosphere in 177.0 s? Assume that the radius of the surface of the Earth is 6378. km.
Find the escape velocity for a partical on a spherical planet of radius R and mass M. What is the numerical value for the Earth? the moon? the sun?
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