Answer:
Photon is absorbed by the atom
Explanation:
For an electron to jump from lower energy level to higher energy level it needs some energy. This process can only take place when the atom absorbs energy, which can be in the form of photons. When the electron jumps to higher energy levels, it is known as excited state and it is not stable. So the electron will try to come back to lower energy level and in that process it will release energy.
Answer:
Explanation:
Not really sure what you're trying to do. You propagate uncertainties for indirect measurements, as in when you calculate a value from other values.
What you have here is a series of values of direct measurements it seems.
Anyway, for error bars will have a width of 2 times the uncertainty reported.
For example on the first one
373.67 +/- 15.444
You would have an error bar with a width of 2 * 15.444 = 30.888. This bar would be centered at 373.677. The lowest point of the error bar would be at 358.233 and the highest point at 389.121.
You also mentioned a scatter plot, but scatter plots are 2D at least. Are these measurements associated to something else like time? You need 2 coordinates for each point in a scatter plot.
I can't think of any way that pressure can be decreased due to added pressure.
Be that as it may, and it certainly still is ...
No matter what you do to the pressure or the temperature of
the gas in that tank, the volume doesn't change. Any sample
of gas always expands to fill the container in which it's confined.
Its volume doesn't change until you either transfer it to another
container with different volume, or else change the volume of
the container it's in.
Answer:
D. Satin Cloth
Explanation:
i thought it said glass, not grass lol
satin it the smoothest surface and therefore the least amount of friction.
Answer:
m/s²
m/s²
Explanation:
Normal or centripetal acceleration measures change in speed direction over time. Its expression is given by:
Formula 1
Where:
: Is the normal or centripetal acceleration of the body ( m/s²)
v: It is the magnitude of the tangential velocity of the body at the given point
.(m/s)
r: It is the radius of curvature. (m)
Newton's second law:
∑F = m*a Formula ( 2)
∑F : algebraic sum of the forces in Newton (N)
m : mass in kilograms (kg)
Data
r= 120 m
Problem development
We replace data in formula (1) to calculate centripetal acceleration:
m/s²
m/s²
We replace data in formula (2) to calculate centripetal force Fc) :
