Physics, 12.03.2020 06:14 itsstaytay200
A composite plane wall consists of a 3-in.-thick layer of insulation (κs = 0.029 Btu/h · ft · °R) and a 0.75-in.-thick layer of siding (κs = 0.058 Btu/h · ft · °R). The inner temperature of the insulation is 67°F. The outer temperature of the siding is −8°F. Determine at steady state (a) the temperature at the interface of the two layers, in °F, and (b) the rate of heat transfer through the wall in Btu per ft2 of surface area.
Answers: 2
Physics, 22.06.2019 12:00
Suppose a wire with a current is pushed upward by a magnetic field. how would the wire move if the direction of the current reversed? explain your answer.
Answers: 1
Physics, 22.06.2019 18:00
Avector of magnitude 2 cannot be added to a vector of magnitude 3 so that the magnitude of the resultant is a. zero b. 1 c. 3 d. 5 e. 7
Answers: 1
Physics, 22.06.2019 20:40
Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 740 n/m. it is initially at rest on an inclined plane that is at an angle of theta= 26 with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is uk = 0.17. in the initial position, where the spring is compressed by a distance of d = 0.16 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. the block's initial mechanical energy is 9.472 j.b. if the spring pushes the block up the incline, what distance l in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.
Answers: 3
Physics, 22.06.2019 22:30
The record distance in the sport of throwing cowpats is 81.1 m. this record toss was set by steve urner of the united states in 1981. assuming the initial launch angle was 45° and neglecting air resistance, answer the following. (a) determine the initial speed of the projectile. m/s
Answers: 2
A composite plane wall consists of a 3-in.-thick layer of insulation (κs = 0.029 Btu/h · ft · °R) an...
Law, 02.10.2020 21:01
English, 02.10.2020 21:01
Mathematics, 02.10.2020 21:01
History, 02.10.2020 21:01
Chemistry, 02.10.2020 21:01
Mathematics, 02.10.2020 21:01
Health, 02.10.2020 21:01
Chemistry, 02.10.2020 21:01
Mathematics, 02.10.2020 21:01
English, 02.10.2020 21:01
Mathematics, 02.10.2020 21:01