Answer:
e. All of the above would require an EPA permit
Explanation:
For a company to discharge their by-products or waste such as wastewater, the company will need to obtain a specific permit for the Environmental Protection Agency (EPA). The EPA was formed to ensure that the integrity of the environment is not compromised. Thus, all of the options in the given question requires an EPA permit.
Answer:
The type of material of which the resistor is made.
The length of the resistor.
The thickness of the resistor.
The temperature of the conductor.
Answer:
Explanation:
As per energy conservation we know that
initial total gravitational potential energy = final spring potential energy
so we have
also we know that maximum acceleration will be 5.3 g
so it is given as
so we have
Answer:
Pressure,
Explanation:
It is given that,
Mass of the woman, m = 55 kg
Diameter of the circular cross section, d = 6 mm
Radius, r = 3 mm = 0.003 m
Let P is the pressure exerted on the floor. It is equal to the force acting on woman per unit area. It is given by :
So, the pressure exerted on the floor is . Hence, this is the required solution.
Answer:
photons are emitted per second.
Explanation:
Let the number of photons emitted by bulb be 'n'.
Given:
Energy radiated by bulb per second (E) = 100 J
Wavelength of light emitted (λ) = 525 nm =
We know that,
Energy of a photon is given as:
Where,
Now, if there are 'n' photons, the energy will be equal to energy of 1 photon times the number of photons. So,
Now, rewriting in terms of 'n', we get:
Plug in the values given and solve for 'n'. This gives,
Therefore, photons are emitted per second.