PHYSICS MIDDLE SCHOOL

1. Jennifer wants to pick up a heavy box. The box weighs 22pounds which is a gravity force down of 100 Newtons. How much
force does Jennifer need to use to lift up the box?

Answers

Answer 1

Answer:

Answer:

97.9 Newtons

Explanation:

It take 4.45 newtons to lift 1 pound, so 4.45 * 22 = 97.9

Related Questions

What type of wave is shown below?
Krista and Blaire are identical twins that were separated at birth. Both of the girls are scared of thunder when they are young. Krista's adoptive parents teach her to deal with her fear by pretending that the thunder is a big drum in an orchestra. Blaire's adoptive parents, on the other hand, teach her to deal with her fear of thunder by thinking about sunny days ahead.Both girls have inherited a fear of thunder. The difference in their way of dealing with this fear, however, can best be explained by differences in their _______.
What is 3a b2 b3 4b2 4 5a identify like terms
Which term identifies the effects of the buildup of stationary electric charges on everyday objects caused by the transfer of electrons fromone object to another? A. stationary electricity B. current electricity C. magnetic electricity D. static electricity
How does the distance the Earth is from the Sun affect its orbit?

What would happen to the amount of matter on earth if mass were not conserved during changes of state?

Answers

earth would be thrown off its balance and nature would be in danger of too many resources and not enough resources

it would be very bad earth wouldve felled

Is winter eye grass autotrophic

Answers

Yes I do believe it is

yes it is autotrophic

20. There are two electrical devices, one is electrical kettle of 2KW-200V andnext one is electrical heater of 1KW-240 V. Which device has highest
resistance?

Answers

Electrical kettle:

P = 2 KW = 2000 W

U = 200 V

⇒ I = P/U = 2000 / 200 = 10 A

We apply the Law of Ohm:

R = U / I = 200V / 10A = 20 Ω

=======

Electrical heater:

P = 1 KW = 1000 W

U = 240 V

⇒ I = P/U = 1000 / 240 = 4,16 A

We apply the Law of Ohm:

R = U / I = 240V / 4,16A = 57,69 Ω

Answer:

The device with the highest resistance is the electric heater.

give 2 examples of events that show that the speep of sound is very much slower than the speed of light

Answers

Answer:

- You see lightning before you hear thunder.

- You see a rock fall before you hear its sound.

Explanation:

Brainliest???

PLEASE ANSWER: How does meiosis affect inheritance through your genes?

Answers

Yes your genes are inherited from your parents. This is because when the egg and sperm meet, and the egg add sperm meet, and the egg is ferlized and the offspring (childs) cells cells are formed by the union.

Meiosis is basically where your cells chromosomes are doubled, then split, and then halved. You are then resulted with a perm or egg, depending on your sex. Because through the process, the cell is doubled, split and then halved, we are left with half as many chromosomes as we have in a regular cell. This is so that when the sperm and egg meet, we have a the original amount of chromosomes for 1 cell. These chromosomes are what affect your body's make up - half from your mum and half from your dad.

How a charge and ions are connected