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when a new equilibrium has been established, there are 5.0 g less ice. From what height was the ball dropped? Assume no water or ice splashed out.
Consider an RC circuit in which a capacitor is being charged by a battery connected in a circuit. Initially the capacitor is uncharged. Then the switch is closed. After a time equal to 1.8 time cons
With the tank empty, the inlet valve is opened with a step change from 0 to 0.25 m3/s. Determine the level after 0.05 s and the final level in the tank.
A uniform disk turns at 3.7 rev/s around a frictionless spindle. A nonrotating rod, of the same mass as the disk and length equal to the disk's diameter, is dropped onto the freely spinning disk, s
Find the gauge pressure at a second point in the line 11.0 lower than the first if the pipe diameter at the second point is twice that at the first.
Hold a pocket mirror at almost arm's length from your face and note the amount of your face you can see. To see more of your face, should you hold the mirror closer or farther, or would you have to
A proton, mass 1.67 · 10 -27 kg and charge +1.6 · 10 -19 C, moves in a circular orbit perpendicular to a uniform magnetic field of 0.75 T. Find the time for the proton to make one com
A rectangular block of ice 6 m on each side and 0.9 m thick floats in sea water. The density of the sea water is 1025 kg/m^3. The density of ice is 917 kg/m^3. How many penguins of mass 24 kg each c
The wire has a linear charge density of -8.0 pC/m, and the cylinder has a net charge per unit length of -4.0 pC/m. Determine the magnitude of the electric field 3.0 cm from the axis.
Find the tension in the support cable and find the magnitude of the force exerted on the lower end of the boom by the hinge.
A 2000 kg car is slowed down uniformly from 21.0 m/s to 10.00 m/s in 3.60 s. (a) What average total force acted on the car during that time? (b) How far did the car travel during that time?
After the engine is ignited, what is the rocket's speed when the spring has stretched 15.8 cm past its natural length? What would be the rockets speed after travelling the distance if it weren't tie
The current in each wire is 10.00 A, but its direction in wire M is opposite to that in wires N and P (see figure). Determine the magnetic force per unit length on each wire due to the other two?
A mountain climber jumps a 3.0m wide crevasse by leaping horizontally with a speed of 8.0 m/s. If the climber's direction of motion on landing is -45 degrees, what is the height difference between
If the current in the windings is 0.531 A and a constant magnetic field of 0.594 T makes an angle of 65? with a vector perpendicular with the loop, what torque acts on the loop?
A diving board length = 5.60 that weighs 210 is supported by two pillars. One pillar is at the left end of the diving board, as shown below; the other is distance = 1.60 away. Find the magnitude of
Air fills the volume between the plates. What potential difference is required to establish a 3.0 uC charge on the plates?
A 800 kg cart is rolling to the right at 3.30 m/s. A 80.0 kg man is standing on the right end of the cart. What is the speed of the cart if the man suddenly starts running to the left with a speed
A U-shaped tube, open to the air on both ends, contains mercury. Water is poured into the left arm until the water column is 14.3 deep. How far upward from its initial position does the mercury in t
Find the minimum thickness t of the oil film that will give constructive interference of reflected light with lambda = 675 nm.
What acceleration must it maintain, so that the two cars meet for the first time at the next exit, which is 2.7 km away?
Standing at a crosswalk, you hear a frequency of 540 Hz from the siren of an approaching ambulance. After the ambulance passes, the observed frequency of the siren is 430 Hz. Determine the ambulance
At a time when mining asteroids is flexible. Astronauts have connescted a line between their 3500 kg spacecraft and a 6200 kg asteroid. Using their ship's engine, they pull on the asteroid with for
A 3.00-kg mass rests on the ground. It is attached to a string which goes vertically to and over an ideal pulley. A second mass is attached to the other end of the string and released. The 3.00-kg
Determine the equation of motion of the inside cylinder using Lagrangian techniques. Find the period of small oscillations about the stable equilibrium position.