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A rocket moves upward from rest with an acceleration of 29.4 m/s2 for 4 sec. It then runs out of fuel and continues to move upward. Ignoring any air resistance, evaluate how high will it rise?
A 9.0 kg object undergoes an acceleration of 2.4 m/s2. What is the magnitude of the resultant force acting on it
In the reference frame of the laboratory, a particle moves in the x-y plane with a velocity of 0.7c at an angle of 40 degrees with the x-axis. Find the velocity (magnitude and direction) of this particle
Given that apparent expansivity of a liquid is 0.00015x10(raised to power -3) per Kelvin and the linear expansivity of the container is 0.00012 x 10(raised to power -3) per Kelvin
X rays with a wavelength of 0.14 nm undergo first-order diffraction from a crystal at a 70^\circ angle of incidence. What is the angle of second-order diffraction
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
The current in a 100 watt lightbulb is 0.770 A. The filament inside the bulb is0.190 mm in diameter, What is the current density in the filament
A 1000 kg sports car accelerates from rest to 25.0m/s in 7.5s. What is the average power output of the automobile engine
The input piston and output plunger of a hydraulic car lift areat the same level, as shown in the drawing. The cross-sectionalarea of the input piston is 12 cm2, while that of theoutput plunger is 1200 cm2
Two automobiles drive in the same direction next to the highway. Each moves initially at speed v = 30 meters per second, (that's 67.11 miles per hour) and the distance between them is D meters.
A person has severe hearing loss that reduces the intensity in his inner ear by 31.5 dB. What amplification factor is needed for this person
Suppose the slope of a beach underneath the ocean is 20 cm of dropoff for every 1.6 m of horizontal distance. A wave is moving inland, slowing down as it enters shallower water. What is its acceleration when it is 11 m from the shoreline?
scientists are experimenting with a kind of gun that may eventually be used to fire payloads directly into orbit. in
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