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Determine the amount of heat in joules required to raise 30 g of aluminum from 22°C to 30°C. Specific heat capacity for aluminum is 0.22 calories per gram per degree Celsius.
A spring is first stretched 2.0 cm from its unstressed length. It is then stretched an additional 1.7 cm.How does the work required for the second stretch compare to the work required for the first stretch (give a ratio of second to first)?
In an effort to pump up you decide to hit the gym and lift weights everyday of the week. Your favorite lift, which you per- form every trip to the gym, is the bench press. This lift involves lifting a 125 lb.
Two circular loops are centered on the x-axis parallel to the yz-plane. The smaller loop is stationary with radius r=0.01m, and resistance R=0.003Ohms. The larger loop has radius, s=0.1m, carries current I=1.5A, and moves towards the smaller loop ..
1 consider a system of n distinguishable atoms fixed in a lattice each of which has mnbspequally spaced energy levels
What was his average swimming speed during the second half of the race if he tied the record, which was at an average speed of 2.05 m/s
A 61.0 skier is moving at 6.15 on a frictionless, horizontal snow-covered plateau when she encounters a rough patch 3.55 long. How fast is the skier moving when she gets to the bottom of the hill
A diver shines light up to the surface of a flat glass-bottomed boat at an angle of 30 degree relative to the normal. find at what angle does the light leave the glass
The distance between two telephone poles is 200 ft. A 3 poundbird lands on the phone wire midway between the poles. If the wiresags 4 inches what is the tension in the wire?
A car in a roller coaster moves along a track that consists of a sequence of ups and downs, Derive a general expression for the speed v of the car
By the time Yuchong is 70 years old, how many light-years is the ship away from the earth? (Assume that the ship does not stop or change direction.)
A deposit of 0.5 kg of silver per hour is obtained on the cathode of silver voltameter of resistance 0.7 milli -ohm . how much potential difference must be maintained between the plates ? given atomic..
A pair of hedge trimmers are 45 cm long from the pivot to the end of the handles. If the person applies of a force of 15 N on each handle, how much force is applied to the branch
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