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A 1200g model rocket is resting horizontally at the top edge of a 40-m-high wall when it is accidentally bumped. The bump pushes it off the edge with a horizontal speed of 0.5 m/s and at the same time causes the engine to ignite. When the engine fires, it exerts a constant 20 N horizontal thrust away from the wall.
How far from the base of the wall does the rocket land?
A string is wrapped around the disk of mass m = 1.8 kg and radius R = 0.11 m. Starting from rest, you pull the string with a constant force F = 8 N along the nearly frictionless surface. At an instant when the center of the disk has moved a distan..
What is the value of a current in the smaller loop that would result in zero total magnetic fields at the center of the two loop system.
what is the maximum weight of the crate that the system can support? What is the angle needed for equilibrium.
If the pump outlet is blocked and the handle pushed until internal length of the pump cylinder is 21, by how much does the air temperature rise? Suppose that no heat is lost.
This is accomplished using two small rockets, each with 150-N thrust, that are mounted on the rim of the station.
A 50.0 g copper calorimeter contains 260 g of water at 22.0°C. How much steam ought to be condensed into the water if the final temperature of system is to reach 42.0°C.
A train siren indicating that the stationary train is ready to leave the station has a frequency of 80 Hz. What frequency is perceived by the occupant of a car traveling away from the train at 30 m/s? The speed of sound in air is 343 m/s.
(a) Determine the sound intensity at each of the three patches. (b) The sound power that passes through each of the patches is 2.00 10-3 W. Find the area of each patch.
Describe Erikson, Levinson, cognitive developmental theorists, Kohlberg, behavioral theorists, Bronfenbrenner, Holland, the eclectic theory, and composite theory.
What is the gauge pressure of the air in the tires when its temperature rises to 27 .00C and its volume increases to 1.67 x 10-2 m3? Assume atmospheric pressure is 1.01 x 105 Pa.
What pull does each one exert if their resultant pull is 402-N straight upward.
You are given three capacitors, with capacitances 0.0077 µF, 12000 pF, and 0.027 µF. Choosing from these three capacitors, How would you connect them in each case
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