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Why is it justified to say that the momentum in the horizontal direction is conserved over the collision interval? Is momentum conserved before and after the collision? Explain.
question a student calculates the frequency of a waveform produced by a tuning fork to be 303 hz. if the tuning fork is
A 0.07 kg bullet traveling at 569 m/s hits a 5.9 kg block of wood and stays in the wood. What is the velocity (speed)of the wood block
a cannon barrel is elevated at an angle of 45deg. it fires a ball with a speed of 346 ms. for the following questions
A technician wraps wire around a tube of length 39 cm having a diameter of 7.8 cm. what is the self-induced emf in the solenoid
8.0 moles of an ideal monatomic gas are compressed from a volume V1 = 0.26 m3 to V2 = 0.13 m3 at a constant pressure of 90 kPa
Ilya and Anya each can run at a speed of 8.40mph and walk at a speed of 3.00mph. Find Anya's average speed. How long does it take Ilya to cover the distance
An electromagnetic plane wave at a certain location has an electric field pointed up which is given as a function of time as E = 54 V/m x sin (6x10^6 Hz x t). how much energy does the foil absorb
a river flows due eat at 1.50 ms. a boat crosses the river from the south shore to the north shore by maintaining a
A projectile is shot vertically from the surface of the Earth. Calculate the final speed of the projectile
In the reference frame of the laboratory, a particle moves in the x-y plane with a velocity of 0.7c at an angle of 40 degrees with the x-axis. Find the velocity (magnitude and direction) of this particle
A student holds a tuning fork oscillating at 260 Hz. He walks towards a wall at a constant speed of 1.16 m/s. How fast must he walk away from the wall to observe a beat frequency of 4.50 Hz
A cannon tilted up at a 25 degree angle fires a cannon ball at 81.0m/s from atop a 18.0m -high fortress wall
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