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An all-terrain vehicle of 2000 kg mass moves up a 15 degree slope at a constant velocity of 6 m/s. The rate of change of gravitational potential energy with time isa 5.25 kWb 24.8 kWc 30.4 kWd 118 kWe 439 kW
An electron with initial velocity v0 = 1.20 × 10^5 m/s enters a region 1cm long where it is electrically accelerated. It emerges with velocity v = 5.87 × 10^5 m/s. What is its acceleration, assumed constant? (Such a process occurs in conventional ..
A major-league pitcher can throw a ball in excess of 41.5 m/s. If a ball is thrown horizontally at this speed, how much will it drop by the time it reaches a catcher who is 17.0 m away from the point of release
A parallel-plate air capacitor has a capacitance of 500 pF and a charge of magnitude 0.150 mu C on each plate. What is the surface charge density on each plate
One piece of 50 g ice at 0C is added to m grams of water at 25C. The system is insulated from outside and the exchange of heat is limited to ice and water only. find the total change in entropy
q1. fuel aboard a rocket has a density of 2770 kgm3 and is ejected with a speed of 3270 ms. if the engine is to provide
a) Write an expression for the magnitude of the force, F, that propels the dragster forward in terms of the variables provided. b) If the track has length L, select the correct symbolic equation for how fast Vf the dragster is traveling when it fi..
Two capacitors are connected parallel to each other. Let C1 = 3.50 ?F, C2 = 5.50 ?F be their capacitances, Calculate the potential difference across each capacitor: V1 = and V2 =
Eris, the largest known dwarf planet in the Solar System, has a radius R = 1200 km and an acceleration due to gravity on its surface of magnitude g = 0.77 m/s2. Use these numbers to calculate the escape speed from the surface of Eris
describes the net gravitational force on the particle due to the shell? zero if the particle is at the center of the shell but nonzero at other locations within the hollow zero for any location of the particle within the hollow.
Assume that, when Hiawatha aims vertically, his arrow reaches a maximum height of 20 m. Use this fact to find the initial speed u with which Hiawatha can launch the arrow vertically.
A water collector on a farm roof 5m high from the ground overflows with rain through a large circular are of radius 1.2m. The water then falls through a pipe and into a tub near the ground; it exits the pipe through a .3m radius spout located .5m fro..
A common flea that has a mass of 0.008 g can jump vertically as high as 19 cm. Estimate the wavelength for the flea immediately after takeoff
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