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600g model rocket is on a cart that is rolling to the right at a speed of 4.5m/s . The rocket engine, when it is fired, exerts an 7.0N thrust on the rocket. Your goal is to have the rocket pass through a small horizontal hoop that is 15m above the launch point.
At what horizontal distance left of the loop should you launch?
Migrating geese tend to travel in straight-line paths at approximately constant speed. How far is the goose from its original position
A point P is on a rim of a wheel of radius 2.0m. At time t=0 wheel is at rest and P is on the x-axis. The wheel undergoes a uniform angular acceleration of 0.01 rad/s2 about the center O. Find out the time t, when P returns to an original position on..
A converging lens, which has a focal length equal to 8.2 cm, is separated by 32.5 cm from a second lens. Find the position of the final image using both a ray diagram and the thin-lens equation
An MP3 player operates with a voltage of 3.7 V, and is using 0.28 W of power. Find the current being supplied by the player's battery
Suppose the superhero had flown 145 m at a 125° angle with respect to the positive x-axis
An ideal heat engine absorbs 81.2 kJ of heat and exhausts 66.1 kJ of heat in each cycle, How much work is done in a cycle
A professor walks in a long hall carrying a vibrating 512Hz tuning fork. The end of the hall is closed so that sound reflects from it. The student hears 4 beats per second. How fast is the student walking and in what direction.
When the starter motor on a car is engaged, there is a 330A current in the wires between the battery and the motor, What minimum diameter can the wires have if the voltage drop along the wires is to be less than 0.45V
A helium-neon laser beam has a wavelength of 633 nm in air. What is the wavelength of the light in that liquid
An electron moves in a circular path perpendicular to a magnetic field of magnitude 0.225 T, find the radius of the circular path
A high-speed photograph of a club hitting a golf ball. The club was in contact with a ball, initially at rest, for about 0.0028s. If the ball has a mass of 55 g and leaves the head of the club with a speed of 1.8 102 ft/s, find out the average forc..
Unpolarized light is incident on a series of two Polaroid sheets. The intensity of the light emerging from the second sheet is 18.4 percent of the intensity of the light incident on the first sheet. Find out the angle between the transmissions axe..
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