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1. A river flows at a speed of 12m/s from north to south. A powerboat can move at a constant maximum speed of 23 m/s in still water.
What is the maximum velocity of the boat traveling upstream?
What is the maximum velocity of the boat traveling downstream?
If the boat were headed east across the river at its maximum speed, what would the resultant velocity of the boat be? (draw a picture)
Heat flows into an ideal gas at a constant volume. The pressure increases from 1.5 atm to 5.5 atm. What is the total change in internal energy
A blue car with mass mc = 442 kg is moving east with a speed of vc = 22 m/s and collides with a purple truck with mass mt = 1213 kg that is moving south with a speed of vt = 12 m/s. find the magnitude of the initial momentum of the car
A rotten pumpkin of mass 2.44 kg is dropped from a height of 2-m above the ground. Ignore air friction. Let the positive y-axis point down. How much momentum will the pumpkin have
If a car traveling at 66 km/h will skid 22 m when its brakes lock, how far would it skid if it is traveling at 120 km/h when its brakes lock.
Illustrate what is the maximum vertical displacement that he ball reaches during its trajectory?
A cylinder of gas is at room temperature (20°C). What is the new pressure of the gas relative to its initial pressure
A 1.18 m long sample from a roll of string is measured to have a mass of 1.04 g. find the wavelength of traveling waves on this string which have frequencies of 40.0 Hz and 5.00 Hz
The speakers produce the same single-frequency tone in either drawing and are in phase. The speed of sound is 343 m/s. Find the single smallest frequency that would produce both constructive interference in drawing 1 and destructive interference in d..
q1. the brick wall of thermal conductivity 0.91 wmdegrees c of a building has dimensions 2.9 m by 6 m and is 18 cm
Illustrate what fractional increase in the tension of one wire lead to the occurrence of 6 beats/s when both wires oscillate simultaneously?
Assuming that the total retarding force on the diver is constant at 55.0 N with the parachute closed and constant at 3600 N with the parachute open, what is speed of the diver while he lands on the ground.
A 42 kg child is riding on a carousel (merry-go-round) at a constant speed of 6 m/s. What is the magnitude of the change in the child's momentum |Δp with arrow| in going all the way around (360°)?
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