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The earth orbits the sun once a year (3.16 x 10^7 s) in a nearlycircular orbit of radius 1.50 x 10^11 m. With respect to the sun,determine the magnitude of the earth’s centripetal acceleration. Hint: First find the average angular speed.a. 1.49 × 10^–3 m/s^2b. 5.94 × 10^–3 m/s^2c. 6.93 × 10^–3 m/s^2d. 8.80 × 10^–2 m/s^2e. 2.82 × 10^–3 m/s^2
A particle travels 18 times around a 11-cm radius circle in 45 seconds. What is the average speed (in m/s) of the particle
If an astronaut dropped a small rock near the surface of Neptune, how far (in m) would the rock fall in 1.5 s
Hair dryer draws a current of 9.2a. How long does it take 1.9*10^3 C of charge pass through? How many electrons does this represent.
A 4.0 kg shell is shot with an initial velocity of magnitude 20.0 m/s at an angle of 60o with the horizontal, Find how long it takes for the shell to rise to the top of its trajectory
An early .75 caliber rifle fires a 12 gram spherical ball at 800 ft/sec with a spin of 1 revolution per 114 mm. How much energy is in the rifle ball
A uniform electric field exists in the region between two oppositely charged plane parallel plates, find speed of electron when it strikes second plate
Suppose you have a spherical balloon filled with air at room temperature and 1.0 atm pressure; its radius is 18cm. what's the balloon's new radius
A string of a violin is 32 cm long between fixed points with a fundamental frequency of 440 Hz and a mass per unit length of 7.2 x 10-4 kg/m. What are the wave speed and the tension in the string
White light, with frequencies ranging from 4.20×1014 Hz to 7.74×1014 Hz, is incident on a calcium surface. Calculate the lowest frequency for which no electrons are ejected
Light of wavelength 0.519 µm (in air) enters the water in a swimming pool. What is the wavelength of the light in water
A capacitor is connected to an ac generator that has a frequency of 3.4 kHz and produces a rms voltage of 1.9 V. What rms voltage does the second generator produce
A sled weighing 100N is held in place on a frictionless 20 degree slope by a rope which is attached to a stake at the top. What is the normal force of the slope acting on the sled
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