16.7 m/s
<em>To</em><em> </em><em>deter</em><em>mine</em><em> </em><em>the </em><em>speed</em><em> </em><em>we</em><em> </em><em>use</em><em> </em><em>the</em><em> </em><em>formula</em><em>:</em><em> </em><em>Dista</em><em>nce</em><em> </em><em>÷</em><em> </em><em>Time</em><em> </em><em>so</em><em>,</em><em> </em><em>5</em><em>0</em><em> </em><em>÷</em><em> </em><em>3</em><em> </em><em>=</em><em> </em><em>1</em><em>6</em><em>.</em><em>6</em><em>6</em><em>.</em><em>.</em><em>.</em><em> </em><em>(</em><em> </em><em>rounde</em><em>d</em><em> </em><em>off</em><em> </em><em>to</em><em> </em><em>1</em><em>.</em><em>d</em><em>.</em><em>p</em><em> </em><em>is</em><em> </em><em>1</em><em>6</em><em>.</em><em>7</em><em>)</em><em>.</em>
Answer:
The ocean tides on earth are caused by both the moon's gravity and the sun's gravity. ... Even though the sun is much more massive and therefore has stronger overall gravity than the moon, the moon is closer to the earth so that its gravitational gradient is stronger than that of the sun.
Answer:
(a) the input force is 36.56 N
(b) the input force is 37.49 N
Explanation:
Given;
density of hydraulic oil, ρ = 8.53 x 10² kg/m³
radius of plunger, r₁ = 0.135 m
radius of piston, r₂ = 5.43 x 10⁻³ m
Part (a) The input force needed to support 22600-N weight, when the bottom surfaces of the piston and plunger are at the same level;
Where;
P is pressure
F is force
A is circular area = πr²
Part (b) The input force needed to support 22600-N weight, when the bottom surface of the output plunger is 1.20 m above that of the input plunger
But, F = PA and A = πr²
If 50 identical light bulbs are connected in series across
a single power source, then the voltage across each bulb
is ( 1/50 ) of the voltage delivered by the power source.
