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A skier launches off a ski jump with a horizontal velocity of 26.2 m/s (and no vertical velocity component). What are the magnitudes of the horizontal and vertical components of her velocity the instant before she lands 1.96s later?
On the Apollo 14 mission to the moon, astronaut Alan Shepard hit a golf ball with a golf club improvised from a tool. The acceleration free-fall on the moon is 1/6 of its value on earth
In a large centrifuge used for training pilots and astronauts, a small chamber is fixed at the end of a rigid arm that rotates in a horizontal circle. How long is the arm of the centrifuge
question you are designing a motor cycle. to provide a smooth ride you want the bike to loose energy it acquires from
A loudspeaker sounds a 600 Hz tone. Find the difference in the wavelength of the sound waves produced in air at -5°C and at 36°C
A centripetal force of 205 N acts on a 1,350-kg satellite moving with a speed of 4,900 m/s in a circular orbit around a planet. What is the radius of its orbit
What is the specific heat capacity of other substance.
A mass of 12.5 kg is hanging by a steel wire 1.13 m long and 1.03 mm in diameter. If the mass is pulled down slightly and released, what will be the frequency of the resulting oscillations
Automobiles A and B are traveling in adjacent highway lanes and at t = 0 have the positions and speeds shown. Knowing that automobile A has a constant acceleration of 0.6 m/s2 and that B has a constant deceleration of 0.4 m/s2, determine
A proton is on the x axis at x = 1.9 nm. An electron is on the y axis at y = 0.84 nm. Discover the net force the two exert on a helium nucleus (charge +2e) at the origin.
A concave mirror produces an upright virtual image that is 3.00cm times taller than the object. The focal length is 15.0cm. Dtermine the distance to the image
At a Washington Nationals game, Jason Werth hits a baseball directly upward. You observe it takes 3.5 s for the ball to reach the top of its trajectory. Find the maximum height it reaches
Light from the bottom of a swimming pool is incident on the surface at an angle of 20°. What is the angle of refraction
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