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A planet's moon travels in an approximately circular orbit ofradius 7.0 x 107 m with a period of 6 h 29 min. Calculate the mass of the planet from this information.
kg
A wheel with a radius of 0.25 m rolls without slipping on a level road at a constant speed of 1.1 m/s for 2.0 min
A high intensity desk lamp is rated at 45 W and 12 Volts. It contains a transformer in its base that converts 120 V household voltage to the needed level. What is the current in the primary when the lamp is on
During this process the arrow's deceleration has a magnitude of 1800 m/s2 and the block's acceleration has a magnitude of 450 m/s2
As you stand by a railroad track a train passes with its whistle blowing. As it passes, you hear a frequency shift equal to 24% of the frequency of the whistle. How fast is the train moving. Express your answer in km/hr. (Speed of sound is 331..
a motorist drives north for 35 minutes at 85 km/h and then stops for 15 minutes. he then continues north traveling 130km in 2h. what was his total displacement
An object with a charge of -2.6?C and a mass of 1.2×10?2kg experiences an upward electric force, Find the magnitude of the electric field
a 1.000 meter long rod (measured when stationary) is moving at 0.8 c. How long would the rod appear to a stationary observer
Illustrate what is the maximum mass, m1, that can be hung from the chords before the 5.0kg mass just begins to move?
A rectangular barge, 5 m long and 2 m wide, floats in fresh water. How much deeper would it go if there were a 500kg horse on it.
A 5.00-g lead bullet traveling at 300 m/s is stopped by a large tree. If half the kinetic energy of the bullet is transformed into internal energy and remains with the bullet while the other half is transmitted to the tree, what is the increase in te..
A team of tornado-chasing meteorology graduate students is out in search of tornados. What frequency of sound do the students hear
A cargo plane in flight lost a package because somebody forgot to close the rear cargo doors. You are on the team of safety experts trying to analyze what happened, Calculate the time at which the package fell off the back ramp
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