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An exoplanet of mass = 5 times the mass of Jupiter and 3 Jupiter radii orbits a star identical to the sun at a distance of 3 AU from the star. Assuming the a circular orbit:
a) estimate the period of the orbit
b) estimate the orbital velocities of the star and the planet
c) estimate the depth of an eclipse cause by this planet as a percentage decrease in the light from the star (assume that the distance to the star is >> radius of the orbit of the planet around the star).
The tension in a string is 15 N and its linear density is0.085 kg/m. What is the speed and wavelength of the wave
A charged paint is spread in a very thin uniform layer over the surface of a plastic sphere of diameter 18.0 cm, Find the electric field just outside the paint layer
A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1360 Hz. The bird-watcher, however, hears a frequency of 1430 Hz. What is the speed of the bird, expressed as a percentage of the speed of sound?
A small insect viewed through a convex lens is 1.6 cm from the lens and appears twice its actual size. What is the focal length of the lens
A hot, 35-gram aluminum rivet is dunked into a tank containing 2.2 L of water to cool it. Calculate the original temperature of the rivet
a 1.5-kg object is attached to an ideal massless spring with a spring constant of 20 nN/M OSCILLATES on horizontal, Find the frequency of the oscillations
How many 95W light bulbs can you use in a 120V circuit without tripping a 17A circuit breaker? (The bulbs are connected in parallel, which means that the potential difference across each light bulb is V.)
Two large metal plates are parallel to each other and separated by 2 cm. they are connected to a 120 V battery. What is the speed of the electron just before it hits the positive plate
A 38.0-kg child swings in a swing supported by two chains, each 2.90 m long. The tension in each chain at the lowest point is 418 N. Find the child's speed at the lowest point
An airplane has a speed 560 km/h. If a wind begins blowing from the southwest at a speed of 86.3 km/h, what will be the angle of west of south
The same train ordinarily decelerates at a rate of 1.95 m/s2. How long does it take to come to a stop from its top speed
A standing wave on a string is produced when one end is fixed and the other is driven by a 76 Hz oscillator, what is the total length of the string in meters
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