Physics, 11.11.2021 07:30 TerronRice
Energy may be the most familiar concept in science, yet it is one of the most difficult to define. When do we observe the effects of energy?
Answers: 3
Physics, 22.06.2019 08:00
5g of ammonium nitrate was dissolved in 60g of water in an insulated container. the temperature at the start of the reaction was 23.0°c and at the end it was 19.0°c. calculate the energy absorbed by the reaction.
Answers: 3
Physics, 22.06.2019 16:30
3. a lunar exploration vehicle was created by a research team. it weighs 3,000 kg on the earth. it needs an acceleration of 10 m/s2 on the moon. in order to have the same acceleration, what will be the net force acting on the vehicle on the earth?
Answers: 2
Physics, 22.06.2019 17:30
Asilver dollar is dropped from the top of a building that is 1324 feet tall. use the position function below for free-falling objects. s(t) = −16t2 + v0t + s0 (a) determine the position and velocity functions for the coin. s(t) = v(t) = (b) determine the average velocity on the interval [1, 2]. ft/s (c) find the instantaneous velocities when t = 1 second and t = 2 seconds. v(1) = ft/s v(2) = ft/s (d) find the time required for the coin to reach the ground level. (round your answer to three decimal places.) t = s (e) find the velocity of the coin at impact. (round your answer to three decimal places.) ft/s
Answers: 3
Physics, 22.06.2019 19:30
Refrigerant-134a flows through a carnot heat pump cycle at 0.5 kg/s. it is known that the maximum absolute temperature in the cycle is 1.1 times the minimum absolute temperature, and the net power input to the cycle is 2.5 kw. if the refrigerant changes from a saturated vapor to a saturated liquid during the heat rejection process, determine the maximum magnitude of the enthalpy of vaporization for this process in kj/kg (with 3 significant figures).
Answers: 3
Energy may be the most familiar concept in science, yet it is one of the most
difficult to define....
Mathematics, 16.04.2021 23:00
Mathematics, 16.04.2021 23:00
Mathematics, 16.04.2021 23:00
Mathematics, 16.04.2021 23:00
Mathematics, 16.04.2021 23:00
Spanish, 16.04.2021 23:00
Mathematics, 16.04.2021 23:00
Mathematics, 16.04.2021 23:00
Mathematics, 16.04.2021 23:00
Computers and Technology, 16.04.2021 23:00
Mathematics, 16.04.2021 23:00
Mathematics, 16.04.2021 23:00