Hi there!
1.
The period of a pendulum can be calculated using the following equation:
T = period (s)
L = length of string (m)
g = acceleration due to gravity (m/s²)
Plug in the values:
2.
Calculate the period:
Frequency is the reciprocal of the period, so:
Answer:
Explanation:
We have given the mass of the carbon =0.1 kg
Molar mass of the carbon =12 gram
Number of moles
We know that 1 mole of carbon contain
So atoms contained by 8.333 moles
In question it is given that each atom contain 6 proton so number of proton
Now we know that each proton contain positive charge of
So total charge
a physical change occurs when materials change shape or size but not the molecular composition of the substance
Answer:
An opaque object is an object through which the light rays can not be passed and we can not see from that object while transparent object allows the passage of light. Hence red apple is unable to pass light, so it is a opaque object. Hence red apple looks red because it absorbs all color except red.