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☆☆☆☆☆Cards in this guide (13)
A desk weighs 500 N with gravity applying that force downward If you apply 275 N upward force and a friend helping you applies 275 N upward force what is the net force applied
50 N upward
Which type of force is exerted on the support ropes of a hammock when you lie in it
Tension
What creates the lift that allows gliders to fly
Unequal Pressure
The aircraft's wing is shaped so that the air passing over the wing moves faster than the air under the wing causing a positive pressure differential, thus creating lift. In simpler terms, it is the air moving above the wing, not below the wing, that causes lift.
What term describes an energy resource that can be used up
nonrenewable energy
Which factors must be known to calculate an object's gravitational potential energy
height and mass
Which of these would you expect to produce the most centrifugal force A spinning arms slowly B spinning forearms arms slowly with biceps tightly at sides C swinging arms fast in circles with arms out
swinging your arms around in circles very quickly
A speed boat is moving at a velocity of 25 ms runs out of gas and drifts to a stop 3 minutes later 100 meters away What is the rate of deceleration
0.14
Which force allows hot air balloons to fly
Buoyancy allows hot air balloons to fly.
Which fundamental force contributes to pressure in both water and the atmosphere
gravity
What is the method used to produce nuclear energy in power plants
nuclear fission
Which of these is a type of drag force turbulence tension thrust and compression
turbulence
What following objects has the greatest density in grams
50 gram object that is 25 cm
³
What is the si unit for pressure which is equal to 1 n exerted over 1m 2
That unit has the special name "pascal".
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