<span>The answer is:
PE lost every second = mgh = 1.2x10^6 * 9.81 * 50 = 5.89x10^8J
So, Power = 5.89x10^8W</span>
Answer:
14 atoms
Explanation:
Number of atoms in Fe₂(CO₃)₃
An atom is the smallest indivisible particle that takes part in a chemical reaction.
In Fe₂(CO₃)₃; we have:
Elements Number of atoms
Fe 2
C 3
O 3(3) = 9
Total number of atoms = 2 + 3 + 9 = 14 atoms
F = k(Q₁Q₂)/r²
where k is Coulomb's constant 8.99e9
F = 8.99e9(2.8e-6)²/0.5² = 0.2819N
Answer: 6.4 x 10^14Hz
Explanation:
velocity of blue light (V) = 3.0 x 10^8m/sec
wavelength (λ) = 465 nanometers
(4.65 x 10?m)
Since 1nanometer = 1 x 10^-9 meter
465 nanometer = 4.65 x 10^-7 meters
frequency (F) = ?
Recall that the frequency of a wave is the number of cycles the wave complete in one second, and its unit is Hertz.
So, apply the formula V = F λ
3.0 x 10^8m/sec = F x 4.65 x 10^-7 meters
F = (3.0 x 10^8m/sec / 4.65 x 10^-7 meters)
F = 6.4 x 10^14Hz
Thus, the frequency of the blue light is 6.4 x 10^14Hz
Answer:
Explanation:
Given
Inclination
Distance of landing point
Considering athlete to be an Projectile
range of projectile is given by
where u=launch velocity
(b)If u is increased by 8% then
new velocity is