Answer:30000 meters
Explanation:
there are 6 ten seconds in a minute times 10 is 60 500 meters times 60 is 30000
Answer:
A. Her total angular momentum has decreased
Explanation:
Total angular momentum is the product of her moment of inertia and angular velocity. In this scenario it doesn’t decrease but rather remains constant as the movement of the arms doesn’t have any effect on the total angular momentum.
The movement of the arm under certain conditions however has varying effects and changes on parameters such as the moment of inertia and the angular speed.
Answer:
Explanation:
The energy of the emitted photon is inversely proportional to its wavelength, according to the equation:
where
is the Planck's constant
is the speed of light
is the wavelength
This means that the biggest energy is released when the wavelength is the shortest. For a photon of visible light, the shortest wavelength is
So, substituting into the equation, we find the corresponding energy:
Ba(NO₃)₂ + Na₂SO₄ → BaSO₄ + NaNO₃
By Trial and error.
Ba(NO₃)₂ + Na₂SO₄ → BaSO₄ + 2NaNO₃
Check:
LHS RHS
Ba 1 1
N 2 2
S 1 1
O 3*2 + 4 = 10 4 + 2*3 = 10
Answer: True
Explanation:
A photo detector that can respond to the entire rang of visible light can be design, it is true.
Photo detector is a device in an optical receiver which receives optical signals and convert it to electric signal. It is the key device position in front of the optical receiver.
