The Luminosity of a star is proportional to its Effective Temperature to the 4th power and its Radius squared.
Answer:
a positive charge of 1
Explanation:
electrons have negative charges
Answer:
charge and distance
Explanation:
The electric force between the two particles are calculated using the formular:
F = kQ₁Q₂ / d²
where:
F = force.
k= Coulomb's law constant.
Q1 and Q2 are the charges.
d= distance.
the equation above is called Coulomb's law.
It can be seen from the equation above that the electric forces between the objects are majorly affected by the substance's charges and distance.
so the correct option is charge and distance.
Answer:
F = 268 Hz
Explanation:
The beat frequency is given as:
|
So, for the first flute and tuning fork:
where,
F = Frequency of tuning fork
F = 248 Hz ± 20 Hz
F = 268 Hz (OR) 228 Hz
Now, for the second flute and tuning fork:
where,
F = Frequency of tuning fork
F = 288 Hz ± 20 Hz
F = 268 Hz (OR) 308 Hz
Since, 268 Hz is common from both calculations. Therefore, it will be the frequency of the tuning fork.
<u>F = 268 Hz</u>
Answer:
97.9 Newtons
Explanation:
It take 4.45 newtons to lift 1 pound, so 4.45 * 22 = 97.9
