Physics, 27.06.2019 08:30 krazziekidd2p845ri
An 8 000-kg aluminum flagpole 100-m high is heated by the sun from a temperature of 10°c to 20°c. find the increase in internal energy (in j) of the aluminum. (the coefficient of linear expansion is 24 × 10 −6 (°c) −1 , the density is 2.7 × 10 3 kg/m 3 , and the specific heat of aluminum is 0.215 cal/g⋅°c.) a. 7.2 × 10 5 b. 7.2 × 10 7 c. 7.2 × 10 3 d. 7.2 × 10 1 e. 7.2 × 10 2
Answers: 1
Physics, 22.06.2019 10:00
** urgent** the voltage across the primary winding is 350,000 v, and the voltage across the secondary winding is 17,500 v. if the secondary winding has 600 coils, how many coils are in the primary winding? a- 30 coilsb- 583 coilsc- 12,000 coilsd- 332,500 coils
Answers: 1
Physics, 22.06.2019 10:20
Asmall object with mass 0.200 kg swings back and forth on the lower end of a light rope that is 3.00 m long. the upper end of the rope is attached to the ceiling. as the object swings through its lowest position, where the rope is vertical, the speed of the object is 5.80 m/s. at this point in the motion, what is the tension in the rope? (use g = 9.80 m/s2.)
Answers: 2
Physics, 22.06.2019 12:00
For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up
Answers: 2
An 8 000-kg aluminum flagpole 100-m high is heated by the sun from a temperature of 10°c to 20°c. fi...
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