- rocket science
- automotive research
- space research
Answer:
166.67 N
Explanation:
Applying Pascal's principle,
Presure in the smaller piston(P') = Pressure in the bigger piston(P)
But,
Pressure = Force/Area
Pressure in the smaller piston(P') = Force applied to the smaller piston(F')/Area of the smaller piston(A')
Pressure in the bigger piston(P) = Force applied to the bigger piston(F)/Area of the bigger piston(A)
F'/A' = F/A.................. Equation 1
Make F the subject of the equation
F = F'A/A'.............. Equation 2
From the question,
Given: F' = 20 N, A = 120 cm², A' = 10 dm² = (10×100) = 1000 cm²
Substitute these values into equation 2
F = 20(1000)/120
F = 166.67 N
Answer:
1.53m
Explanation:
Given parameters:
Mass of box = 3kg
Gravitational potential energy = 45J
Unknown
Height of the box = ?
Solution:
To solve this problem;
Gravitational potential energy = mgh
m is the mass
g is the acceleration due to gravity
h is the height
45 = 3 x 9.8 x h
h = 1.53m
Answer:
1: an elevator moving up to the 3rd floor (gathering potential energy)
2: all options here will increase the GPE
3: the last option
4: just before it hits the ground and has reached a speed of 28 meters per second
5: turning a different direction while moving the same speed
6:a jogger getting faster after spotting a mountain lion behind him on the trail
7: I didn’t watch the lesson
8: at the top of the swinging path, when you are still for a moment just before falling again
9: I d+o)n#t k#n0”w
10: same as 9 sor=ry
<span>no it doesn't.
one way to think of it is that the tropic of capricorn is the furthest south the sun's path goes, and the tropic of cancer is the northern most line that the sun traces out.
since neither the tropic of capriforn nor the tropic of cancer are on the equator, the sun must be tracing out a different line and hence be on a different plane.
also, if the sun was on the same plane as the equator, then we wouldn't have seasons.</span>
