Answers: 1
Physics, 21.06.2019 17:10
An object is moving east, and itβs velocity changes from 65m/s to 25m/s in 10 seconds. which describes the acceleration?
Answers: 1
Physics, 22.06.2019 02:50
Ammonia enters the expansion valve of a refrigeration system at a pressure of 10 bar and a temperature of 18oc and exits at 6.0 bar. the refrigerant undergoes a throttling process. determine the temperature, in oc, and the quality of the refrigerant at the exit of the expansion valve.
Answers: 3
Physics, 22.06.2019 03:50
Aspecimen of oil having an initial volume of 580cm^3 is subjected to a pressure increase of 4.0 mpa, and the volume is found to decrease by 0.40 cm^3. (a) what is the bulk modulus of the material? (b) what is the compressibility of the material?
Answers: 1
Physics, 22.06.2019 16:40
Aparticle's position is given by x = 3.00 - 9.00t + 3t2, in which x is in meters and t is in seconds. (a) what is its velocity at t = 1 s? (b) is it moving in the positive or negative direction of x just then? (c) what is its speed just then? (d) is the speed increasing or decreasing just then? (try answering the next two questions without further calculation.) (e) is there ever an instant when the velocity is zero? if so, give the time t; if not, answer "0". (f) is there a time after t = 3 s when the particle is moving in the negative direction of x? if so, give the time t; if not, answer "0".
Answers: 3
When a sound is produced, how does it travel to your ear?...
Mathematics, 28.06.2019 10:20
Mathematics, 28.06.2019 10:20
History, 28.06.2019 10:20
History, 28.06.2019 10:20
Mathematics, 28.06.2019 10:20
Mathematics, 28.06.2019 10:20
Mathematics, 28.06.2019 10:20
History, 28.06.2019 10:20
Mathematics, 28.06.2019 10:20
Mathematics, 28.06.2019 10:20
Mathematics, 28.06.2019 10:20
Mathematics, 28.06.2019 10:20