Physics, 28.01.2021 01:00 JAlvelo

Which Statement Describe the Atoms of an Element? A. They Are Weightless
B. They can be seen with a magnifying Glass
C. They have different sizes and shapes.
D. They have Mass and Volumes

Answers: 1

Show answers

Another question on Physics

Physics, 22.06.2019 04:00

If steel is more dense that lake water, why can a boat float

Answers: 1

Answer

Physics, 22.06.2019 11:50

Find the dimensions and area of the largest rectangle that can be inscribed in the upper half of the ellipse. (give your answers in terms of a and b. enter the dimensions as a comma-separated list.)

Answers: 2

Answer

Physics, 22.06.2019 17:40

The weights of bags filled by a machine are normally distributed with a standard deviation of 0.05 kilograms and a mean that can be set by the operator. at what level should the mean weight be set if it required that only 1% of the bags weigh less than 9.5 kilograms? round the answer to 2 decimal places.

Answers: 1

Answer

Physics, 22.06.2019 18:00

Air enters a gas turbine with two stages of compression and two stages of expansion at 100 kpa and 17°c. this system uses a regenerator as well as reheating and intercooling – the intercooler returns the air to the inlet temperature. the pressure ratio across each compressor is 4 ; 300 kj/kg of heat are added to the air in each combustion chamber; and the regenerator operates perfectly while increasing the temperature of the cold air by 20°c. determine the system’s thermal efficiency. assume isentropic operations for all compressor and the turbine stages and use constant specific heats at room temperature. (0.378)

Answers: 3

Answer

You know the right answer?

Which Statement Describe the Atoms of an Element? A. They Are Weightless
B. They can be seen...

Questions