Um painel coletor de energia
solar é utilizado para aquecer a água de uma
resi...
Physics, 23.04.2020 21:42 nathaniel12
Um painel coletor de energia
solar é utilizado para aquecer a água de uma
residência e todo o sistema tem um rendimento de
60 %. Para aumentar a temperatura em 12,0 °C de
uma massa de água de 1.000 kg a energia solar total
coletada no painel deve ser de
Dado: considere o calor específico da água igual a
4,0 J/graus C
Answers: 2
Physics, 22.06.2019 20:00
Awave that is traveling fast can be said to have a high a. frequency b. speed c. wavelength d. amplitude e. period f. none of these
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
Physics, 23.06.2019 00:30
Diego kicks a soccer ball from the end line. his fellow students time and mark the soccer ball as it moves down the field. the graph represents the ball's progress. based on the graph, during what time is the velocity constant and positive?
Answers: 1
English, 28.08.2019 20:10
English, 28.08.2019 20:10
Physics, 28.08.2019 20:10
Mathematics, 28.08.2019 20:10
Mathematics, 28.08.2019 20:10