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Q1. The pilot of an aircraft wishes to fly due west in a 37.70 km/h wind blowing toward the south. The speed of the aircraft in the absence of the wind is 191 km/h.
Q2. If the first astronaut were moving at 4 m/s, and the two astronauts have the same mass, what is their final momentum after they collide? Suppose each astronaut has a mass of 100 kg.
Q3. A 27 rifle bullet travelling 215 buries itself in a 3.4- pendulum hanging on a 2.60 long string, which makes the pendulum swing upward in an arc.
A 36.0 g bullet moving at 478 m/s strikes a 3.7 kg bag of flour that is on ice, at rest. The bullet passes during the bag, leaving at 255 m/s. How fast is the bag moving when the bullet exits.
A firefighter at a distance d from a burning building directs a stream of water from a fire hose at angle θi above the horizontal as shown in Figure. If the initial speed of the stream is vi. At what height h does the water strike the building?
Young's double-slit experiment is performed with 570 nm light and a distance of 2.00 m between the slits and the screen. The tenth interference minimum is observed 7.64 mm from the central maximum. Settle on the spacing of the slits.
The heat of vaporization of ethyl alcohol is about 200 cal/g. If 2.3 kg of it were allowed to vaporize in a refrigerator, how many grams of ice will be formed from 0°C water.
Calculate torques about an axis
Determine the location at which the tuning is formed and the vibrating frequency of a string to form a standing wave pattern.
What was the absorbed dose in the carbon walls? The average mass stopping powers of graphite and CO2 for the photons are, respectively, 1.648 and 1.680 MeV cm^2/g.
What is the reading of spring scale
3.00 m-long, 350 steel beams extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 66.0 construction worker stands at the far end of beam.
Find out the intensity if the frequency is increased to 2.90 kHz while constant displacement amplitude is maintained.
What is change in the car's kinetic energy KEf - KEo from A to B. How fast will the father be moving.
Compute average magnetic flux through turn of inner solenoid
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