Answer:
1.) Liquid
2.) Low
3.) Molecular
4.) Surface tension
5.) Solvent
Explanation:
Water is important to living things because it remains in the LIQUID state over a wide range of temperatures. Water in lakes and oceans does
not experience large temperature changes because liquid water has a
LOW specific heat, so it must absorb or release a lot of energy as its temperature changes. The MOLECULAR forces between water
molecules cause water to form round droplets and cause water's high SURFACE TENSION. Water is also an important SOLVENT because it can
dissolve many different substances.
Answer:
The answer to your question is given below
Explanation:
From the question given above, we can see that the wave with a higher frequency has a shorter wavelength while that with a lower frequency has a longer wavelength. This is so because the frequency and wavelength of a wave has inverse relationship. This can further be explained by using the following formula:
Velocity = wavelength x frequency
Divide both side by wavelength
Frequency = Velocity /wavelength
Keeping the velocity constant, we have:
Frequency ∝ 1 / wavelength
From the above illustration, we can see clearly that the frequency and wavelength are in inverse relationship. This implies that the higher the frequency, the shorter the wavelength and the shorter the frequency, the higher the wavelength.
<span>The correct answer for this question is this one:
"The wing tip is moving around a circle at a constant speed. And it says that the acceleration is centripetal. It moves a distance that is equal to the circumference of a circle, as </span>the wing makes a complete circle<span>. The radius of the circle is equal to one half of the wingspan.
</span>Circumference = 2 * π * 6.6 = π * 13.2
<span>To determine the velocity, divide this distance by 22 seconds. </span>
<span>v = π * 13.2 ÷ 22 </span>
<span>This is approximately 1.885 m/s. </span>
<span>Centripetal acceleration = (π * 13.2 ÷ 22)^2 ÷ 6.6 </span>
Answer:
An 8 kg sled mass moves in a straight line on a surface without horizontal friction at a certain point its speed is 4 m / s 2.50 m later its speed is 6 m / s using the work and energy theorem, determine the force acting on the sled assuming it is constant and acts in the direction of the sled movement
The force acting on the 8 kg sled has a value of 32 N.
Explanation:
We have initially look for the work that is applied to the sled, and this will be nothing more than the difference in kinetic energy from the end point to the initial, then:
ΔEc = Ec₂ - Ec₁
ΔEc = 0.5 * m * [V₂² - V₁²]
ΔEc = 0.5* 8 kg * [(6m / s) ² - (4m / s) ²]
ΔEc = 80 J
So, the work is 80 J, now we know that work is a relation distance and force , such that:
W = F * d
F = W / d
F = (80 J) / (2.50 m)
F = 32 N
Therefore, the force acting on the sled is 32 N.