Answer:
Poke or kick the boxes. The sand box is the one that resists the most
Explanation:
The one that resists the most a change in motion (inertia) is the one with the greater mass—the one filled with sand. Since we cannot open the boxes or perform any weight measurement we can distinguish them by their inertia. Sand has greater mass and thus greater inertia
Answer:
The flow of energy from falling water to the steam is;
a) Mechanical → Mechanical → Electrical → Thermal → Thermal
Explanation:
1) Mechanical → Mechanical
The water in the pipe before it falls possesses potential energy which it converts into kinetic energy as it falls from height
2) Mechanical → Mechanical
The water falling from the pipe stream unto the turbine wheel transfers its kinetic (mechanical) energy due to its motion on to the turbine wheel to give the wheel rotational motion
3) Mechanical → Electrical
The kinetic (mechanical) energy from the rotating turbine wheel is converted into electrical energy in the electrical generator which transported through the electrical circuit
4) Electrical → Thermal
The electrical energy from the electric current is then converted into thermal energy as the current passes through the resistors in the heating filament
5) Thermal → Thermal
The heated filament transfers thermal energy to the the water in the beaker by conduction which raises the temperature of the water such that as the water acquires more thermal energy it turns into steam
Therefore, we have the flow of energy from the falling water to steam as follows;
1) Mechanical 2) Mechanical 3) Electrical 4) Thermal 5) Thermal
Explanation:
Total surface area of cylinder:
sheet of metal required = 120.95 cm^2
Answer:
C. Roadway
Explanation:
"Potholes" are considered major contributors of vehicle accidents. This is the reason why the roadway is often maintained by the government. This happens due to natural <em>wear-and-tear situations</em> or to<em> a base that has not been properly compacted. </em>
There are primarily<u> four main causes of accidents</u>: t<em>he driver, the vehicle, the roadway and the weather.</em> In the situation above, it is obviously clear that the "roadway" is the one involved in the situation. The condition or state of the road is a factor that also contributes to accidents. Such potholes should be repaired.
So, this explains the answer.
