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Three light bulbs each with a resistance of 50 ohm, are connected in series to a 100 Volt power supply. Determine the current flowing through third light bulb?
a 1.5 kilogram block is at rest on a ramp of height h. when the block is released it slides without friction to the
A 2100-kg truck traveling north at 41 km/hr turns east andaccelerates to 60 km/h. What is the change in the truck's kinetic energy
An object of mass m = 4.4 g and charge Q = 32 µC is attached to a string and placed in a uniform electric field that is inclined at an angle of 30.0° with the horizontal. The object is in static equilibrium when the string is horizontal.
Suppose a 1-meter-long bare expands 0.5 centimeters when heated. by how much will a 100-meter-long bar of the same material expand when similarly heated?
0.5 kg of saturated vapor (H2O) at 1.5 bars is contained in a piston-cylinder device. Heat transfer in the amount of 150 kJ to the steam occurs and some work is done on the steam by a impellor. At the end of this process the steam is at 1.5 bars and ..
A force of 78gm acts at the point (2, 3, 5) the direction cosines of its line of action being as 2:2:1 find the magnitude of its moment about the joining the origin to the point (2, 3, 4).
a meteoroid is speeding through the atmosphere traveling east at 23.8 kms while descending at 19.9 kms. what is its
A car is traveling at 43.2km/hr on a flat, concrete highway. If the brakes are applied such that skidding occurs, the kinetic coefficient of friction between the road and tires is 0.808. If anti-lock brakes are properly applied after that no skidd..
two cylinders are made of the same unknown material. the first has a radius r1 resistance r1 and mass m1. the second
A football punter accelerates a football from rest to a speed of 10 m/s during the time in which his toe is in contact with the ball, what average force does the punter exert on the ball
A jet plane lands with a velocity of +103 m/s and can accelerate at a maximum rate of -5.00 m/s2 as it comes to rest. find the minimum time needed before it can come to rest
Two ice skaters, with masses of 50.0kg and 85.0kg , are at the center of a 40.0m -diameter circular rink. The skaters push off against each other and glide to opposite edges of the rink.If the heavier skater reaches the edge in 40.0s , how long does ..
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