Two bodies X and Y of mass 5.0 kg and 7.5 kg respectively are connected by a light in extensible string if x is placed on a rough surface of coefficient of friction 0.5, calculate the magnitude of the
1 normal friction
2 frictional forces between x and the surface
3 tension on the string​
Answers: 2
Physics, 22.06.2019 12:40
Find the equation for the plane through upper p 0 left parenthesis negative 4 comma negative 8 comma negative 5 right parenthesis perpendicular to the following line. xequalsnegative 4 minus t, yequalsnegative 8 plus 2 t, zequals3 t, minusinfinityless thantless thaninfinity
Answers: 2
Physics, 22.06.2019 15:20
Aphoton is absorbed by an electron that is in the n = 3 state of a hydrogen atom, causing the hydrogen atom to become ionized. very far away from the nucleus, the released electron has a velocity of 750,000 m/s. what was the wavelength of the absorbed photon?
Answers: 2
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
Physics, 22.06.2019 21:30
Ateacher gives students four liquids commonly found in the kitchen - vinegar, apple juice, dish detergent, and milk - and ph indicator strips, which measure acidity. the teacher asks the students to put the liquids in order from most acidic to most basic. what type of investigation could the students conduct to determine the correct order for the liquids?
Answers: 3
Two bodies X and Y of mass 5.0 kg and 7.5 kg respectively are connected by a light in extensible str...
Spanish, 22.09.2021 07:00
Mathematics, 22.09.2021 07:00
Mathematics, 22.09.2021 07:00
Chemistry, 22.09.2021 07:00
History, 22.09.2021 07:00
Mathematics, 22.09.2021 07:00
Mathematics, 22.09.2021 07:00
Mathematics, 22.09.2021 07:00
Social Studies, 22.09.2021 07:00
Chemistry, 22.09.2021 07:00
Mathematics, 22.09.2021 07:00
Social Studies, 22.09.2021 07:00