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A golfball rolls off a horizontal cliff with an initialspeed of 11.4 m/s. The ball falls a vertical distance of 15.5m intoa lake below.
a) How much time does the ball spend in the air?
b) What is the speed v of the ball just before it strikes the water?
Two thermally insulated reservoirs each contain 2 kg of water at temperatures of 80 °C and 20 °C respectively, Determine the find equilibrium temperature and find the change in entropy of the local universe in the mixing process
what is the max number of steps any worker should be allowed.
Two cars of equal mass collide on a horizontal frictionless surface. What is the speed of the composite body (AB) after the collision
A small glass bead has been charged to +19 nC. A metal ball bearing 1.0 cm above the bead feels a 0.020 N downward electric force. What is the charge on the ball bearing
An 8.7 hour trip is made at an average speed of 73 km/hr. If the first third of the trip (chronologically) was driven at 96.5 km/hr, what was the average speed for the rest of journey.
A 31.2cm diameter coil consists of 17 turns of circular copper wire 1.70mm in diameter. The resistivity of copper is 1.68×10-8 Ohm m. Determine the current in the loop
Two moles of an ideal diatomic gas have an initial pressure of 4:00 atm and initial volume of 16:0 L. What are the initial and final temperatures of the gas
A projectile is fired straight upward from the Earth's surface at the South Pole with an initial speed equal to one third the escape speed. What is the altitude of the projectile at this instant
Sodium light of wavelength 589 nm is focused through a pinhole before illuminating a Young's double aperture with an aperture spacing of 1.00 mm. what is the maximum pinhole diameter
er beam with wavelength ? = 6328 Å is incident normal to the plane of a diffraction grating. find the distance between the two first-order maxima in the pattern
The potential difference between two parallel conducting plates in vacuum is 475 V. An alpha particle with mass of 6.50×10-27 kg and charge of 3.20×10-19 C is released from rest near the positive plate. What is the kinetic energy of the alpha particl..
A 380 kg piano slides 3.9 m down a 27 incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. Determine the work done by the man on the piano
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