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A group of students launches a model rocket in the vertical direction. Based on tracking data, they determine that the altitude of the rocket was 27.5 m at the end of the powered portion of the flight and that the rocket landed 16 s later. Knowing that the descent parachute failed to deploy so that the rocket fell freely to the ground after reaching its maximum altitude and assuming that g = 9.81m/s2, determine
(a) The speed v1 of the rocket at the end of powered flight,
(b) The maximum altitude reached by therocket.
The left ventricle of a resting adult's heart pumps blood at a flow rate of 83.0 cm3/s, increasing its pressure by 117 mm Hg, Calculate the total power output of the left ventricle
monochromatic light of variable wavelength is incident normally on a thin sheet of plastic film in air. the reflected
A block with mass m = 7.0 kg is attached to two springs with spring constants kleft = 37.0 N/m and kright = 48.0 N/m. The block is pulled a distance x = 0.21 m to the left of its equilibrium position and released from rest. 1) What is the magnitud..
Compute the momentum, total energy and kinetic energy of a proton moving with a velocity v=0.99c relative to the laboratory frame
a computer monitor accelerates electrons and directs them to the screen in order to create an image. if the
q1. a student in a parked car honks the horn that has a proper frequency of 310.00 hz. an observer in an approaching
The total volume of the column of water in the neck is 0.200 m^3. Illustrate what is the magnitude of the force exerted by the water on the bottom of the container?
A grandfather clock is controlled by a swinging brass pendulum that is1.2m long at a temperature of28°C. What is the length of the pendulum rod
A Carnot engine operates between 235°C and 125°C, absorbing 6.30 ? 104 J per cycle at the higher temperature. How much work per cycle is this engine capable of performing
At a particular moment in kayla's skydive, her acceleration is 16 meters/sec^2. how much force of air resistance is acting on her
Find the energie level and the wave function of the ground state and the first excited state for system of two noninter acting fermions with spin 1/2 moving in a one dimentional infinite squarewell
A 70.0 kg stuntman is attached to a bungee cord. He is standing on a ledge that is 50 m high. How much gravitational potential energy does he have
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