HELP ME PLEASE
...
Answers: 3
Physics, 22.06.2019 10:50
If jerome is swinging on a rope and transferring energy from gravitational potential energy to kinetic energy, is being done.
Answers: 3
Physics, 22.06.2019 13:30
Which is not an example of how an object gains elastic potential energy by stretching? a. jumping on a pogo stick b. pulling on a rubber band c. jumping on a trampoline
Answers: 1
Physics, 23.06.2019 13:30
How many joules will be lost by 150 g of water if it is cooled from 90oc to 5oc?
Answers: 1
Physics, 23.06.2019 16:00
Acommon procedure for measuring the velocity of an airstream involves the insertion of an electrically heated wire (called a hot-wire anemometer) into the airflow, with the axis of the wire oriented perpendicular to the flow direction. the electrical energy dissipated in the wire is assumed to be transferred to the air by forced convection. hence, for a prescribed electrical power, the temperature of the wire depends on the convection coefficient, which, in turn, depends on the velocity of the air. consider a wire of length l = 20 mm and diameter d = 0.5 mm, for which a calibration of the form v = 6.25 ă— 10â’5 h2 has been determined. the velocity v and the convection coefficient h have units of m/s and w/m2 â‹… k, respectively. in an application involving air at a temperature of tâž = 25â°c, the surface temperature of the anemometer is maintained at ts = 75â°c with a voltage drop of 5 v and an electric current of 0.1 a. what is the velocity of the air?
Answers: 1
Mathematics, 30.11.2019 07:31
Health, 30.11.2019 07:31
Mathematics, 30.11.2019 07:31
Mathematics, 30.11.2019 07:31
Spanish, 30.11.2019 07:31
Mathematics, 30.11.2019 07:31
Mathematics, 30.11.2019 07:31
Mathematics, 30.11.2019 07:31
History, 30.11.2019 07:31
Chemistry, 30.11.2019 07:31
English, 30.11.2019 07:31
Mathematics, 30.11.2019 07:31