When a large block of ice is added to a hot cup of water then it won't melt the ice because mass of water is less. Therefore, heat released or given out by it will be less. Whereas lake is able to dissolve the large block of ice because lake has large mass and thus it will have more heat
1 mol of photons contained a number of photons equal to Avogadro number:
The total energy of the mole of photons is
, so the energy of a single photon is the total energy divided by the number of photons:
The energy of a single photon is related to its frequency f:
where h is the Planck constant. From this formula, we find the frequency of the photons in the problem:
And from the frequency we can finally calculate the wavelength
, using the relationship between wavelength, frequency and speed of light (c) for photons:
Answer:
lighter atoms, energy, neutrons.
Explanation:
An atom is divided into two lighter atoms when passing through a nuclear fission. This process also generates some neutrons and a release of energy, that is, the kinetic energy of the nucleus and gamma rays. Therefore, the two resulting nuclei are called fission products.
Answer:
0.5 m/s
Explanation:
From Newton's Third law of motion,
Momentum of the cannon = momentum of the flatcar.
mv = MV........................ Equation 1
Where m = mass of the cannon, v = velocity of the cannon, M = mass of the flatcar, V = Velocity of the flat car.
make V the subject of the equation
V = mv/M................... Equation 2
Given: m = 10 kg, v = 50 m/s, M = 1000 kg
Substitute into equation 2
V = 10×50/1000
V = 500/1000
V = 0.5 m/s
Hence the speed of the flatcar = 0.5 m/s
Answer:
Explanation:
We start from the ideal conditions previously given, as well
We understand that the formula for Maximum Voltage is given by,
In turn, we can take the expression given for the Instantaneous Voltage, which is defined as,
Replacing all expressions in one,
Eliminating units for better reading