subject
Physics, 16.04.2020 17:21 jack487

Two identical pots, one black and one silver, containing exactly the same amounts of water, are heated to the same temperature,
They are left uncovered and placed in the same room. After 15 minutes the water in the black pot is significantly cooler than the
water in the silver pot. Which of these statements best explains this difference?

ansver
Answers: 1

Another question on Physics

question
Physics, 22.06.2019 02:00
The motor m applies a time-varying force of f (200 t) n, where t is in seconds. box b with mass 200 kg starts from rest, and the coefficients of kinetic and static friction are 0.2 and us 0.3 the acceleration due to gravity is g 9.8 m/s2 b 300 a) find the time ' when the box starts to move. b) calculate the speed of the crate at 3 s c) calculate the power delivered by the motor at t 3 s
Answers: 3
question
Physics, 22.06.2019 05:00
At time t=0, a particle is located at the point (3,6,9). it travels in a straight line to the point (5,2,7), has speed 8 at (3,6,9) and constant acceleration 2iāˆ’4jāˆ’2k. find an equation for the position vector of the particle.
Answers: 2
question
Physics, 22.06.2019 10:50
The temperature at a point (x, y) is t(x, y), measured in degrees celsius. a bug crawls so that its position after t seconds is given by x = 6 + t , y = 8 + 1 3 t, where x and y are measured in centimeters. the temperature function satisfies tx(3, 9) = 5 and ty(3, 9) = 4. how fast is the temperature rising on the bug's path after 3 seconds? (round your answer to two decimal places.)
Answers: 3
question
Physics, 22.06.2019 14:20
Antireflective coatings on solar cells are often made by applying a thin film of silicon nitride (sinx), which has an index of refractive of 1.2, on the top of the silicon solar cell, which has a refractive index of about 3.5. however, the sun emits radiation of various wavelengths which the solar cell absorbs, and the antireflective coating can only absolutely minimize the reflection of one of these wavelengths. the coating thickness is chosen to reduce the reflection of green/yellow light (e = 2.2 ev), which is the most intense color in the solar spectrum (shown below). which of the following coatings would minimize reflection of green/yellow light? the answer is 820 nm how? what is the angular width of the central maximum of an electron traveling at 2 x 108 m/s going through a single slit of width 1 mm.
Answers: 1
You know the right answer?
Two identical pots, one black and one silver, containing exactly the same amounts of water, are heat...
Questions
question
Mathematics, 19.11.2020 04:10
question
Mathematics, 19.11.2020 04:10
question
Mathematics, 19.11.2020 04:10
question
Mathematics, 19.11.2020 04:10
question
Mathematics, 19.11.2020 04:10