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You fly from Boston's Logan Airport, at sea level, to Denver, at an altitude of 1.6 km. Take your mass as 65 kg and the zero of potential energy at Boston. What is your gravitational potential energy at the plane's 13-km cruising altitude? What is your gravitational potential energy in Denver?
A baseball is hit with a speed of 28.0{\rm m/s} at an angle of 47.0{\rm ^\circ} . It lands on the flat roof of a 14.0{\rm m} -tall nearby building. what horizontal distance does it travel before it lands on the building
The speed of a projectile when it reaches its maximum height is 0.38 times its speed when it is at half its maximum height
A loudspeaker is generating sound in a room. At a certain point, the sound waves coming directly from the speaker (without reflecting from the walls) create an intensity level of 75.1 dB. What is the total intensity level
A parallel-plate capacitor with plate area3.5cm2 and air-gap separation 0.50?mm is connected to a 12-V battery, How much work was required to pull the plates to their new separation
An unknown gas is introduced into the aforementioned apparatus using the same tuning fork, and the first resonance occurs, Find the speed of sound in the gas
A football is thrown with an initial upward velocity component of 15.0 and a horizontal velocity component of 17.5 . How high does it get above the ground? How far has the football traveled horizontally from its original position?
An electron and a proton are accelerated starting from rest through a potential difference of 10 million volts. Find the momentum (in MeV/c) and the kinetic energy (in MeV) of each
Light of wavelength 5.60 multiply.gif 102 nm passes through a slit of width 0.180 mm. Determine the width of the first-order bright fringe
A 200 kg rocket sled can be accelerated at a constant rate from rest to 1600 km/h in 2.0 s. What is the magnitude of the required net force
A block is placed at the bottom of the incline and given an initial velocity V0 directed along the incline. Find what should be the angle of the incline a
A sled of mass m is given a kick on a frozen pond. The kick imparts to it an initial speed of vi = 2.00 m/s. find the distance the sled moves before it stops
A rescue plane spots a survivor 182 m directly below and releases an emergency kit with a parachute. how far away from the survivor will it hit the waves
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