Answer:
12 ohms
Explanation:
Ohm's Law tells the relationship between voltage, current, and resistance.
It can be written in three different ways, depending on which ones you know,
and which one you want to find.
Here's the one we need:
Resistance = (voltage) divided by (current)
= (120 V) / (10 Amp)
= 12 ohms .
Answer:
We experience interference while listening to the radio. A radio station works by sending and receiving radio waves. Since the radio waves are being interfered with other waves which must have a wave nature.
The interference is the net result of two individual waves. It can be constructive or destructive interference and is the property of waves and not particles.
This interference is an example of electromagnetic radiation. Thus we experience wave behavior of electromagnetic radiation in our daily communications.
Answer:
Explanation:
To determine the final temperature of the sample, we use the specific heat formular as follows:
Finally, the temperature of the aluminium sample has raised 18 K.
Answer:
9.4 m
Explanation:
This is a projectile motion. The maximum height above the level projection is given by
is the initial velocity, is the angle of projection above the horizontal and is the acceleration of gravity.
The maximujm height above the ground is 1 m + 8.4 m = 9.4 m
The kinetic energy of a molecule or a sample is equal to the mass of the substance multiplied by the square of teh velocity. The mass of electron is equal to 9.10938356 × 10-31 kilograms. The kinetic energy given is 2.28 *10^-19 J.Hence the velocity is equal to 500,291.28 m/s