Physics, 01.09.2019 00:10 Andychulo7809
Superconductors can be used to make extra strong magnetic fields
Answers: 1
Physics, 21.06.2019 17:20, londonval
Your 249 ml cup of coffee is too hot to drink when served at 82 degree celsius. what is the mass of an ice cube taken from a -21 degree celsius freezer, that will cool your coffee to a pleasant 54 degree celsius. specific heat of the water is 4190 j/kg c, specific heat of ice is 2090 j/kg c, heat of fusion of ice is 3.33 x 10^5 j/kg
Answers: 3
Physics, 22.06.2019 18:30, breiajr
Aballoon is rising vertically upwards at a velocity of 10m/s. when it is at a height of 45m from the ground, a parachute bails out from it. after 3s he opens his parachute and decelerates ata a constant rate 5m/s. when. (a) what was the height of the parachutist above the ground when he opened his parachute? (b)how far is the parachutist from the balloon at t=3s? (c)with what velocity does the parachutist hit the ground? (d)after how long does the parachutist hit the ground after his exist from the balloon?
Answers: 3
Physics, 22.06.2019 23:00, Miguel1310
According to the image below, which season is about to begin in the southern hemisphere? a. summer b. autumn c. winter d. spring
Answers: 1
Superconductors can be used to make extra strong magnetic fields...
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