Answer:
<h2>The answer is 5 s</h2>
Explanation:
The time taken can be found by using the formula
![t = \frac{d}{v} \\](https://tex.z-dn.net/?f=t%20%3D%20%20%5Cfrac%7Bd%7D%7Bv%7D%20%20%5C%5C%20)
d is the distance
v is the velocity
From the question we have
![t = \frac{20}{4} \\](https://tex.z-dn.net/?f=t%20%3D%20%20%5Cfrac%7B20%7D%7B4%7D%20%20%5C%5C%20)
We have the final answer as
<h3>5 s</h3>
Hope this helps you
SI unit is an international system of measurements that are used universally in technical and scientific research to avoid the confusion with the units. Having a standard unit system is important because it helps the entire world to understand the measurements in one set of unit system.
Answer:
Matter is anything that has mass and occupies space. The flame itself is a mixture of gases (vaporized fuel, oxygen, carbon dioxide, carbon monoxide, water vapor, and many other things) and so is matter. <em><u>The light produced by the flame is energy, not matter.</u></em>
<em><u></u></em>
Answer:
The acceleration is a = 2.75 [m/s^2]
Explanation:
In order to solve this problem we must use kinematics equations.
![v_{f} = v_{i} + a*t\\](https://tex.z-dn.net/?f=v_%7Bf%7D%20%3D%20v_%7Bi%7D%20%2B%20a%2At%5C%5C)
where:
Vf = final velocity = 13 [m/s]
Vi = initial velocity = 2 [m/s]
a = acceleration [m/s^2]
t = time = 4 [s]
Now replacing:
13 = 2 + (4*a)
(13 - 2) = 4*a
a = 2.75 [m/s^2]
Answer:
50 N/m
Explanation:
Elastic energy = kinetic energy
EE = KE
½ kx² = ½ mv²
½ k (4 m)² = ½ (8.0 kg) (10.0 m/s)²
k = 50 N/m