Answer:
most likely just 1
Explanation:
I sucked at sig figs in middle school, in fact it was the lowest test grade i ever received, but it is relatively simple.
because there is only one sig fig involved in each number, there can't be multiple sig figs here. 3000/500=6
500/3000=2(round up from 1.66666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666666) you get the point.
The only force opposing the block's sliding as it slows down is friction with magnitude <em>f </em>. By Newton's second law, the net force in this direction is
∑ <em>F</em> = -<em>f</em> = <em>ma</em> = (4.00 kg) <em>a</em>
Assuming constant acceleration <em>a </em>, the acceleration applied by friction is such that
(1.5 m/s)² - (11 m/s)² = 2<em>a</em> (4.00 m)
Solve for the acceleration :
<em>a</em> = ((1.5 m/s)² - (11 m/s)²) / (8.00 m) ≈ -14.8 m/s²
Then the frictional force exerted a magnitude of
-<em>f</em> = (4.00 kg) (-14.8 m/s²)
<em>f</em> ≈ 59.4 N
and was directed opposite the block's motion.
Answer:
1/2
Explanation:
The energy stored in a capacitor is given by:
where
C is the capacitance
V is the potential difference
For capacitor 1, we have
Capacitor 2 has
(half the capacitance of capacitor 1)
(twice the potential difference of capacitor 1)
So the energy of capacitor 2 is
So, the ratio between the two energies is
Answer:
You build up kinetic energy and you get shocked this happens because static has built up from the socks and the rug. This also happens when you rub a balloon on your head or shuffle across a trampoline with socks on.
Explanation:
brainliest plz
Answer:193.90 m/s
Explanation:
Given
launch angle 
launch velocity 
Horizontal velocity of the shell after 
time of flight of Projectile 
i.e. projectile is declining as 
but horizontal component of velocity will remain same as there is no opposing force in horizontal direction
Horizontal component of velocity is
