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A baseball is thrown straight upward on the moon with an initial speed of 35 m/s. Calculate
(a) the maximum height reached by the ball,
(b) the time taken to reach that height,
(c) its velocity 30 s after it was thrown, and
(d) when the ball's height is 100 m.
What must your average speed over the next 10 miles be to have your average speed for the total 20 miles be 13m/h? c)Given this average speed for the first 10 miles, can you possibly attain an average speed of 14for the total 20-mile ride?
Two newly discovered planets follow circular orbits around a star in a distant part of the galaxy. What is the mass of the star
A 0.0500 kg cube of ice at an initial temperature of-15.0oC is placed in 0.600 kg of water at T =45.0oC in an insulated container of negligible mass. Calculate the change in entropy of the system
The two stars in a binary star system have masses 2.2x10^30kg and 5.9x10^30kg. They are separated by 1.8x10^12m. What is the speed of the lightest star
q1. for years marine scientists were mystified by sound waves picked up by underwater microphones in the pacific ocean.
A rectangular air mattress is 2.2m long, 0.57 m wide, and 0.07 m thick. If it has a mass of 2.0 kg, what additional mass can it support in water
To transmit only portions of an input wave lying on one side of an amplitude boundary, you would use a.
If a disco disk is rotating with a person on it on the outer side, then if he moves inside (towards the center), the angular velocity will change-How will the energy be conserved.
a 100v dc battery, a resistor and a capacitor are connected in series. The capacitor is initially uncharged. estimate the capacitance of the capacitor
Write down the equation for this process, and using values for the binding energy of the hydrogen and carbon-12 nuclei of 0 MeV and -92.2 MeV respectively, calculate the binding energy of the nitrogen nucleus.
A 430 gram rock is whirled on the end of a string 45 cm long which will break under a tension of 22 N. What is the highest speed the rock can reach before the string breaks? (Neglect gravity.)
A 10.4-g bullet is fired into a stationary block of wood having mass m = 5.03 kg. determine the original speed of the bullet
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