Answer:
Acceleration, a = 6m/s²
Explanation:
<u>Given the following data;</u>
Mass = 62kg
Force = 372N
To find his acceleration;
Force is given by the multiplication of mass and acceleration.
Mathematically, Force is;
Where;
- F represents force.
- m represents the mass of an object.
- a represents acceleration.
Making acceleration (a) the subject, we have;
Substituting into the equation, we have;
<em>Acceleration, a = 6m/s²</em>
<em>Therefore, Zach accelerates at the rate of 6 meters per seconds square. </em>
Answer:
Yes because people that get self control will blame others for their actions.
B. a line connecting only the highest and lowest values on a graph
By using a woodstove, the kilograms of wood required to
heat a room to 20°C is 3 kg
<h3>Efficiency of a machine</h3>
- Efficiency is the percent of work put into a machine (input work) to that of the work done by the machine (output work).
- Efficiency of a machine is always less than 100% because the output work is always less than the input work because some of the input work is used to overcome friction.
Efficiency = work output/work input * 100%
Efficiency of fireplaces = 15%
Amount of food required to heat a room to 20°C = 15 kg
Assuming efficiency of 100%, amount of wood required will be X kg:
X = 15% * 15 kg
X = 2.25 Kg
By switching to woodstoves which are 75% efficient, amount of wood required will be Y kg:
Y = 2.25 kg / 75%
Y = 3 kg
Therefore, by using a woodstove, the kilograms of wood required to
heat a room to 20°C is 3 kg
Learn more about efficiency of machines at: brainly.com/question/3617034
