<span>A negative space is the space
around and between the real object. It is the space that forms around the
subject after it has altered to give an artistic feel. A dark energy is hypothesized
to infuse all of space accelerating the expansion of the universe. It is also
an unknown form of energy. A black hole exhibits a strong gravitational pull
that no astronomical object can escape from it. A dark matter is a black space
in the universe that constitutes most of the unknown. They so not emit light at
any wavelength. The answer is letter D.</span>
<h3><u>Answer;</u></h3>
Period = 1/17 seconds
<h3><u>Explanation;</u></h3>
- Wavelength is related to period by the expression:
<em>speed = wavelength / period
</em>
- If we are given the speed, then we can easily calculate the period at the wavelength of 20 m.
<em>Given the speed of sound wave as 340 m/s </em>
<em>Period = Wavelength/ speed</em>
<em> = 20 m/340 m/s</em>
<em> </em><u><em>= 1/17 seconds</em></u>
Answer:
![variables \: v = 15m {s }^{ - 1} t = 3s \\ equation \: v = \frac{d}{t} \\ solve \: 15 = \frac{d}{3} \\ cross \: multipication \\ 15 \times 3 = d \\ d = 45m](https://tex.z-dn.net/?f=variables%20%5C%3A%20v%20%3D%2015m%20%7Bs%20%7D%5E%7B%20-%201%7D%20t%20%3D%203s%20%5C%5C%20equation%20%5C%3A%20v%20%3D%20%20%5Cfrac%7Bd%7D%7Bt%7D%20%20%5C%5C%20solve%20%5C%3A%2015%20%3D%20%20%5Cfrac%7Bd%7D%7B3%7D%20%20%5C%5C%20cross%20%5C%3A%20multipication%20%5C%5C%2015%20%5Ctimes%203%20%3D%20d%20%5C%5C%20d%20%3D%2045m)
Explanation:
Hope that this is helpful.
Have a great day.
Answer:
8.1Ns
Explanation:
Impulse is expressed as the product of Force and time
Impulse = Ft
F is the force = 180N
Get the time using the equation of motion
v = u+at
18 = 0+F/m(t)
18 = 180/0.45(t)
18 = 400t
t = 18/400 secs
Recall that;
Impulse = Ft
Impulse = 180×18/400
Impulse = 8.1Ns
Hence the impulse imparted to the ball is 8.1Ns
Answer:
more inelastic
Explanation:
Assume the price of gasoline doubles tonight and remains at that price for the next two years. The price elasticity of demand for gasoline measured tomorrow will be <u>more inelastic</u> when compared with the price elasticity of demand for gasoline measured two years from now.
Inelastic refers to the static quantity of a good or service when its price changes.