Answer:
Cost = 165.6 cents = $1.656
Explanation:
First, we will calculate the total energy consumed by the bulb in a month:
where,
E = Energy Consumed = ?
P = power = 23 W
t = time = (1 month)(30 days/1 month)(24 h/1 day) = 720 h
Therefore,
Now, the cost will be:
<u>Cost = 165.6 cents = $1.656</u>
Answer:
Explanation:
The energy of a photon is: when h is the Planck constant.
Then, we calculate the energy of a photon with a wavelength equal to 550 nm.
To find the number of photons we can use this equation:
Have a nice day!
Answer:
Place the north pole of a magnet next to the north pole of another magnet.
Explanation:
Looking at the comments, we can see that the options are:
Place the south pole of a magnet next to the north pole of another magnet.
Place the north pole of a magnet next to the north pole of another magnet.
First, we know that a positively charged particle will repel another positively charged particle.
The same thing happens for magnetic forces (usually we define a magnetic flow from the south pole to the north pole, so we can define the south pole as the "positive" and the north pole as the "negative", but this is only notation and do not really matter), a south pole of a magnet will repel another south pole of a magnet (and the same happens for the north poles)
Then the correct option is:
Place the north pole of a magnet next to the north pole of another magnet.
Answer:
Explanation:
Given the following data;
Mass = 35 kg
Velocity = 3 m/s
To find the kinetic energy of the child;
K.E = ½mv²
GREAT QUESTION! Cool subject to talk about :) Here goes nothing lol
1) Apache- North American Indians of the Southwest who fought against frontiersmen.
2) Arapaho- North American Plains Indians living along the Platte and Arkansas Rivers.
3) Sam Bass- A desperado whose career inspired ballads.
4) Judge Roy Bean- a legendary frontier judge who ruled by one book and a six-shooter!
5) Colt .45 six-shot revolver invented by Samuel Colt and used throughout the West... extremely popular among cowboys and outlaws alike.
6) Last but definetily not last, "Billy the Kid" (William H. Bonney, 1859-1881) Brooklyn-born gunman of the Wild West. Legendary Outlaw.
There are plenty more facts to talk about but in the interest of time this all I can provide for now. Hope it helps and have a nice day/night :)