Physics, 20.09.2019 23:30 mostman077
An office worker uses an immersion heater to warm 250 g of water in a light, covered, insulated cup from 20°c to 100°c in 4.00 minutes. the heater is a nichrome resistance wire connected to a 120-v power supply. assume the wire is at 100°c throughout the 4.00-min time interval. specify a diameter and a length the wire can have. can it be made from less than 0.5 cm3 of nichrome?
Answers: 1
Physics, 22.06.2019 19:30
Because atoms of elements in the same group of thbecause atoms of elements in the same group of the periodic table have the same number of neutrons, they have similar properties. select the best answer from the choices provided t fe periodic table have the same number of neutrons, they have similar properties. select the best answer from the choices provided t f
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Physics, 22.06.2019 19:50
An air-filled capacitor is formed from two long conducting cylindrical shells that are coaxial and have radii of 26 mm and 103 mm. the electric potential of the inner conductor with respect to the outer conductor is - 700 v (k = 1/4πε 0 = 8.99 × 109 n · m2/c2) the energy stored in a 1.0-m length of this capacitor is closest to
Answers: 1
Physics, 22.06.2019 20:10
On a frictionless air track, a blue glider with mass 0.200 kg is moving to the right with a speed of 8.00 m/s. it strikes a red glider that has mass 0.600 kg and that is initially at rest. after the collision, the blue glider is moving to the left with a speed of 3.00 m/s.(a) what are the magnitude and direction of the velocity of the red glider after the collision? (b) is this collision elastic?
Answers: 1
Physics, 23.06.2019 06:00
2) the sun is wonderful source of energy. it is renewable and natural with few dangers. solar cells rely on the sun for energy. these cells would be more practical to use if they were
Answers: 2
An office worker uses an immersion heater to warm 250 g of water in a light, covered, insulated cup...
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