Answer:
an open system
Explanation:
which is contrasted with the concept of an isolated system which exchanges neither energy, matter, nor information with its environment.
Starting with the equation for newtons second law of motion:
Answer:
Time = 0.187 secs
Explanation:
Parameters given:
Speed of hot air balloon = 1.60 m/s
Speed of toss = 10.7 m/s
Distance between passenger and friend at time of toss = 2m
To find the time given, we can simply divide the distance between the passenger and her friend by the speed of the toss. Mathematically,
Time = distance/speed
Time = 2/10.7
Time = 0.187 secs
Therefore, it takes 0.187 seconds for the camera to get to her.
Answer:
a) ω = 91.1 rad/s
b) KEr = 15.0 J
Explanation:
I = (2/3)mR²
ω = v/R
PE = KE
mgh = ½mv² + ½Iω²
mgh = ½mv² + ½(2/3)mR²(v/R)²
2gh = v² + (2/3)v²
2gh = 5/3v²
v² = 6gh/5
ω² = v²/R² = 6gh/5R²
a. At what rate was it rotating at the base of the hill?
ω = √(6(9.81)(9.00) / (5(0.226/2)²) = 91.1 rad/s
b. How much rotational kinetic energy did it then have?
KE = ½Iω² = ½(⅔)(0.426)(0.113)²(91.1²) = 15.044616
Answer:
If Earth's diameter doubled but density was similar to the old Earth, the planet's <u>mass would go up and gravity would be twice as strong</u>. That would instantly make <u>tides twice as much as it was before.</u>
Explanation:
brainliest please