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Comet orbits are highly elliptical. A periodic comet orbiting a two solar mass star with an orbital period of 200 years comes to a periastron distance of 0.7 AU. Using only Keplers third law calculate a) the semimajor axis of the comet's orbit b) the comet's apastron distance
q1. a rubber ball of mass m 0.739 kg is dropped from a height ho 4.73 m and it rebounds to a height hf 3.66 m.
A 4.0-m-long iron bar of uniform cross section is held perpendicular to the wall by a wire from the end of the bar to the wall, what is the magnitude of the vertical component of force produced by the wall
The intake in the figure has cross-sectional area of 0.80 m2 and water flow at 0.41 m/s. What is the pressure difference between inlet and outlet
question1a 240 33.0-cm-diameter turntable rotates on frictionless bearings at 55.0. a 25.0 block sits at center of the
An ambulance is generating a siren sound at a frequency of 2,400 Hz. The velocity of sound is 345.0 m/s. find the frequency of the siren perceived by the observer
The inlet of the pipe shown has a cross sectional area of 202.0cm2, and the outlet has a cross sectional area of 75.0cm2. What is the volumetric flow rate in the horizontal pipeline
A lighted candle is placed 36 cm in front of a diverging lens. The light passes through the diverging lens and on to a converging lens of focal length 10 cm that is 5 cm from the diverging lens. Find the focal length of the diverging lens
A pilot claims to have seen a UFO moving initially at a speed of about 484 m/s in an easterly direction, Compute the UFO's average acceleration during the turn
A brick is initially 10.74 cm high and an aluminum can is initially 10.75 cm high. By how much must their temperatures be raised in order for the brick
Two 2.0-g pith balls hang in air on essentially weightless cotton threads 50-cm long from a common point of support. Find the magnitude of the charge on each ball
A jogger's internal energy changes because he performs 6.10 105 J of work and gives off 4.9 multiplied by 105 J of heat. Determine the magnitude of the heat given off while walking
A helicopter lowers a rope with a seat at the end to resue someone. The seat has a mass of 4.4 kg. The person has a mass of 74.4 kg. How much tension will be on the rope
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