Physics, 08.01.2021 18:20 ineedhelp2285
Which is the best insulator? metal, glass, plastic, or Styrofoam?
Answers: 1
Physics, 22.06.2019 04:00, tamyahamlin02p6b7yt
Determine the maximum r-value of the polar equation r =3+3 cos 0
Answers: 3
Physics, 22.06.2019 10:40, rainbowboi
As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. there is no one around to , so you attach an ideal pulley to the box and a massless rope to the ceiling, which you wrap around the pulley. you pull up on the rope to lift the box. use g for the magnitude of the acceleration due to gravity and neglect friction forces. once you have pulled hard enough to start the box moving upward, what is the magnitude f of the upward force you must apply to the rope to start raising the box with constant velocity? express the magnitude of the force in terms of m, the mass of the box.
Answers: 1
Physics, 22.06.2019 15:50, ksiandua07
An object with initial temperature 130 ∘ f is submerged in large tank of water whose temperature is 50 ∘ f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = − 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )
Answers: 1
Which is the best insulator? metal, glass, plastic, or Styrofoam?...
Social Studies, 21.07.2019 07:10
History, 21.07.2019 07:20