Answer:
Gravity,momentum & friction are examples of FORCE.
Explanation:
Hope this helps you
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Everything would be more advanced and logical while the past people really just tried to survive.
Work done = force × distance travelled in the direction of the force
Force= 2(9.81) = 19.62N
WD= 19.62×130= 2550.6Nm
Answer:
In a given medium the velocity of a wave is always constant. This means that if the wavelength increases the frequency will decrease and if the frequency increases the wavelength will decrease.
Explanation:
= Wavelength
f = Frequency
Velocity
In a given medium the velocity of a wave is always constant. This means that if the wavelength increases the frequency will decrease and if the frequency increases the wavelength will decrease. This is true for any wave whether sound or electromagnetic.
-- The acceleration due to gravity is 32.2 ft/sec² . That means that the
speed of a falling object increases by an additional 32.2 ft/sec every second.
-- If dropped from "rest" (zero initial speed), then after falling for 4 seconds,
the object's speed is (4.0) x (32.2) = <em>128.8 ft/sec</em>.
-- 128.8 ft/sec = <em>87.8 miles per hour</em>
Now we can switch over to the metric system, where the acceleration
due to gravity is typically rounded to 9.8 meters/sec² .
-- Distance = (1/2) x (acceleration) x (time)²
D = (1/2) (9.8) x (4)² =<em> 78.4 meters</em>
-- At 32 floors per 100 meters, 78.4 meters = dropped from the <em>25th floor</em>.
The 5 points are certainly appreciated, but I do wish they were Celsius points.