Answer:
22.73 Hz
Explanation:
Frequency = 45.45/2 = 22.73 Hz
Answer:
Heat capacity, Q = 781.74 Joules
Explanation:
Given the following data;
Mass = 12g
Initial temperature = 28.3°C
Final temperature = 43.87°C
Specific heat capacity of water = 4.184J/g°C
To find the quantity of heat needed?
Heat capacity is given by the formula;
Where;
Q represents the heat capacity or quantity of heat.
m represents the mass of an object.
c represents the specific heat capacity of water.
dt represents the change in temperature.
dt = T2 - T1
dt = 43.87 - 28.3
dt = 15.57°C
Substituting into the equation, we have;
Q = 781.74 Joules
The size of the atoms does not directly correlate its mass. The mass could be heavy or light, but it may appear to be about the same size. This is because the nucleus of the atom is very dense. Majority of the mass is inside the nucleus of an atom which occupies very little space. So, even though the element is very heavy, when it is crammed into the same little space, they would look like they are of the same size.
Explanation:
Multiply both sides by 2 and then divide by m to get
Take the square root of both sides to get