Ribosome are used for protein synthesis
Answer:
3.44 W/m²
1.134 J
Explanation:
E₀ = Intensity of electric field = 50.9 V/m
I = Intensity of electromagnetic wave
Intensity of electromagnetic wave is given as
I = (0.5) ε₀ E₀² c
I = (0.5) (8.85 x 10⁻¹²) (50.9)² (3 x 10⁸)
I = 3.44 W/m²
A = Area = 0.0277 m²
t = time interval = 11.9 s
Amount of energy is given as
U = I A t
U = (3.44) (0.0277) (11.9)
U = 1.134 J
Answer:
The impulse transferred to the nail is 0.01 kg*m/s.
Explanation:
The impulse (J) transferred to the nail can be found using the following equation:

Where:
: is the final momentum
: is the initial momentum
The initial momentum is given by:

Where 1 is for the hammer and 2 is for the nail.
Since the hammer is moving down (in the negative direction):
And because the nail is not moving:

Now, the final momentum can be found taking into account that the hammer remains in contact with the nail during and after the blow:
Since the hammer and the nail are moving in the negative direction:
=
= -9.7 m/s
Finally, the impulse is:

Therefore, the impulse transferred to the nail is 0.01 kg*m/s.
I hope it helps you!
We use the voltage division problem between the load resistance, amplifier output resistance as
.
Here,
is the output voltage,
is the amplifier voltage,
is the load resistance and
is the amplifier output resistance.
Therefore,
.
Thus, the amplifier output resistance is
.