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1. A bicyclist is heading east at 6.6 m/s for 2.5 minutes when she realizes she left her cell phone in her apartment. She turns around and it takes her 3.5 minutes to reach her apartment. What is her average speed and velocity for the round trip?
A stretched cord has a fundamental frequency of 144 Hz, a length of .9 m, and a mass of 2 g. What is the tension on the cord
During a physics experiment, helium gas is cooled to a temperature of 19.0K at a pressure of 6.00×10?2atm. find the rms speed of the atoms
A wood log with a volume of 12 ft3 is submerged in water. Calculate the buoyant force (in Newtons) acting on the log
An automobile traveling at 15.0 km/h along a straight, level road accelerates to 65.0 km/h in 6.00 s. What is the magnitude of the auto's average acceleration
Rocket-powered sleds are used to test the human response to acceleration. what is the distance that the sled travels
A wave has angular frequency 135 rad/s and wavelength 1.70 m. Calculate the following values of the wave. estimate the angular wave number
IF Earth's orbit were suddenly to become much more eccentric. keeping orbital semimajor axis as is, fixed at 1 AU, but let's imagine shifting both the Earth's perihelion and aphelion points by 0.9 AU, so that at perihelion we were only 0.1 AU from th..
A Federation starship (7.5 multiplied by 106 kg) uses its tractor beam to pull a shuttlecraft (5.0 multiplied by 104 kg ) aboard from the distance of 12 km away.
If the mass of Jupiter is 1.8 x 10^27 kg, then find the escape velocity for an object launched from the surface of Jupiter
An ultralight plane and pilot have a total mass of 150 kg. what is the net force acting on the plane and pilot
The density of a 4.07-m long rod can be described by the linear density function ?(x) = 117 g/m + 15.1x g/m2. Determine the total mass of the rod
A 75 kg man jumps from an airplane. When his parachute deploys, it exerts a 500 N force on the man at an angle of 30 degrees with respect to vertical
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