I just figured this out now.
First you would use the formula
Ephoton= hc/λ and substitute in the value's of plank's constant, the speed of light in a vaccum and the wavelength which will give you the energy in joules. Then you go to the reference table and solve for the energy used between the different levels for Mercury making sure to convert electron volts to jules. In the end the correct answer should be energy level D.
Answer:
Explanation:
Given
mass of duck=2.40 kg
=0.150 N
=0.160 N in a direction south of east
Net force in x- direction
net force in Y direction
Thus displacement in x direction
Displacement in Y direction
here u=0
net displacement
=0.866 m
Direction of displacement
south of east
Answer:
Explanation:
Force can be found by multiplying the mass by the acceleration.
The mass of the cart is 3 kilograms and the acceleration is 6 meters per second squared.
Substitute the values into the formula.
Multiply.
- 1 kilogram meter per second squared is equal to 1 Newton.
- Therefore, our answer of 18 kg*m/s² is equal to 18 N
The force exerted is <u>18 Newtons</u>
The answer is B. because NaCl are just two elements with one atom from each element