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Calculate the momentum of a 2100 kg elephant charging a hunter at a speed of 7.50 m/s.
kg·m/s
Compare the elephant's momentum with that of a 0.0400 kg bullet fired at a speed of 600 m/s.
(momentum of elephant / momentum of bullet)
What is the momentum of the 90.0 kg hunter running at 8.00 m/s after missing the elephant?
A spherical aluminum ball of mass 1.55 kg contains an empty spherical cavity that is concentric with the ball. The ball just barely floats in water. Calculate the outer radius of the ball
A bar length lies on two supports C and D with distance between them. Over this distance the load q(x) is placed, linearly going from 0 in C to q in D. determine the bending angles
A deuteron particle (the nucleus of an isotope of hydrogen consisting of one proton and one neutron and having a mass of 3.34×10?27 kg) moving horizontally enters a uniform, vertical, How fast was this deuteron moving just before it entered the mag..
A helium-neon laser (l=583 nm) illuminates a single slit and is observed on a screen 2 m behind the slit. What is the width (in mm) of the slit
A violin string 12.2 cm long and fixed at both ends oscillates in its n = 4 mode. The speed of waves on the string is 285 m/s, and the speed of sound in air is 348 m/s. What are (a) the frequency and (b) the wavelength of the emitted sound wave?
A parallel-plate capacitor is formed from two 5.0cm -diameter electrodes spaced 2.9mm apart. What is the charge (in nC) on each electrode
On the Apollo 14 mission to the moon, astronaut Alan Shepard hit a golf ball with a 6 iron. For how much more time was the ball in flight
A projectile is launched in the horizontal direction. It travels 2.050m horizontally while it falls .450m vertically, How long is the projectile in the air
The work function for zinc is 4.31 eV. Ultraviolet light of wavelength 144 nm is incident on the clean surface of a zinc sample. What is the photon energy of the ultraviolet light
A wheel spinning at 25 rev/s is slowed to a stop by a constant acceleration while turning 50rev. What is the magnitude of the constant acceleration
the 500N weight is supported by two cables, the cable forces being F1 and F2. knowing that the resultant of F1 and F2 is a force of magnitude 500N acting in Y-direction, determine F1 and F2.
The figure below shows a refracted light beam in oil making an angle of α = 24.0o with the normal line NN'. the index of refraction of the oil is 1.40. Determine the angle θ. answer in degree
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