Answer:
1000j
Explanation:
work done = force x distance
w = 5 x 10 x 20 = 1000joules
6 m/s because the position of the object was increasing 6 m every second
Answer:
a. absorbs light at one wavelength and emits light at a longer wavelength.
Explanation:
Fluorescence is a kind of luminescence in which there is the emission of the light by the substance which has absorbed light with more photon energy as compared to the emitted energy.
<u>It occurs when the emitted light has longer wavelength because of lower energy as compared to the absorbed radiation.</u>
<span>The following that describes the intercepts on the graph is "The initial velocity of the runner was 4 m/s, and the runner stopped after 8 seconds." It is because the starting point of the line is at 4 and then the ending point is at 8.
</span>
Answer:
When the volume increases or when the temperature decreases
Explanation:
The ideal gas equation states that:
where
p is the gas pressure
V is the volume
n is the number of moles of gas
R is the gas constant
T is the gas temperature
Assuming that we have a fixed amount of gas, so n is constant, we can rewrite the equation as
which means the following:
- Pressure is inversely proportional to the volume: this means that the pressure decreases when the volume increases
- Pressure is directly proportional to the temperature: this means that the pressure decreases when the temperature decreases
