C. Greenhouse gases contribute to climate change
Explanation:
It is desirable to use an energy source that does not produce greenhouse gases because these gases contributes a whole lot to climate change.
Over the years, studies have shown that the primary use of fossil fuels have significant lead to changes in the climate.
- Greenhouse gases are produced during the combustion of fossil fuels.
- The most important gas produced in this process is the carbon dioxide.
- The greenhouse gases prevents long range radiation from leaving the earth.
- They waves interacts with the gases and warms the earth surface.
- Anomalous concentration of the gases causes more warming of the earth surface.
- This leads to a change in climate.
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Answer:
See a tractor is more slow but has a greater force and a car is fast but has a slower force
Explanation:
so your answer is Tractors have more force then cars
Answer: A,C,D,E are correct statements of an inductor
A. When an inductor and a resistor are connected in series with a DC battery, the current in the circuit is reduced to zero in one time constant.
C. An inductor always resists any change in the current through it.
D. When it is connected in a circuit, an inductor always resists having current flow through it.
E. Inductors store energy by building up charge.
Answer:
p = -8 kg-m/s
Explanation:
Given that,
Initial speed of the rock, u = 8 m/s
Mass of the rock, m = 1 kg
The ball travels up to a maximum height, then returns to the ground.
We need to find the rock's momentum as it strikes the ground. Let v be the final speed of the rock. Its final speed is as same as initial speed i.e. 8 m/s but in negative direction. So
p = mv
p = 1 kg × (-8 m/s)
= -8 kg-m/s
So, the rock's momentum as it strikes the ground is (-8 kg-m/s).
100 meters in 9.92 seconds,
=distance/time
=100m/9.92s
=10.0806 m/s