1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Dafna11 [192]
3 years ago
14

Please help !!!!!!!!,

Physics
1 answer:
garik1379 [7]3 years ago
5 0

Answer:

I think that it's C

You might be interested in
Calculate the amount of heat (in kj) required to convert 74.6 g of water to steam at 100°c
Kryger [21]
You just need the energy of turning of water in to steam. Water is a little funny because once water gets to 100 degrees C, it stops changing in temperature whilst it all turns to steam. The amount of energy required to turn 1 gram of water into steam is 2257 Joules. We call this the latent heat of vaporisation. So to turn 74.6 grams of water to steam, you would need:

2257J/gram x 74.6g = 168,372.2 J = 168.4 kJ

(<span></span><em>latent heat of vaporisation: 2257 J/gram</em>)


7 0
3 years ago
What is a period and how does it work
gtnhenbr [62]
A period is a form of grammer , and it is used to end a sentence 
7 0
3 years ago
Read 2 more answers
Environment includes _______.
insens350 [35]
D should be correct.
6 0
4 years ago
Aluminum, carbon, and calcium are examples of what type of matter?
Vanyuwa [196]
Element would be it man
4 0
3 years ago
A kangaroo kicks downward with a 1000N force. According to Newton's Law the kangaroo is propelled into the air by:
bogdanovich [222]
<h3>Answer: B) his muscles</h3>

Explanation:

Specifically his leg muscles. As the leg muscles expand, they push down on the ground. Newton's 3rd law says that for any action, there's an opposite and equal reaction. That means a downward push into the ground will have the ground push back, more or less, and that's why the kangaroo will jump. The ground (and the earth entirely) being much more massive compared to the animal means that the ground doesn't move while the kangaroo does move. Perhaps on a very microscopic tiny level the ground/earth does move but it's so small that we practically consider it 0.

This experiment can be done with a wall as well. Go up to a wall and lean against it with your hands. Then do a pushup to move further away from the wall, but you don't necessarily need to lose contact with the wall's surface. As you push against the wall, the wall pushes back, and that causes you to move backward. If the wall was something flimsy like cardboard, then you could easily push the wall over and you wouldn't move back very much. It all depends how much mass is in the object you're pushing on.  

5 0
3 years ago
Other questions:
  • What is the center of a tornado called A.the eye B. The center C. The middle road D. The vortex
    13·2 answers
  • What can one say for sure about element #99, Einsteinium (Es))? a) There's no such element! b) It is an alkali metal. c) It is r
    14·1 answer
  • Marta, Cato, and Juan plan a skit to illustrate one of the methods of charging. Marta and Cato are walking together. Each has on
    8·1 answer
  • 1. A particle is moving along the x-axis. Its position as a function of time is given as x = bt − ct 2 . a) What must be the uni
    5·1 answer
  • A series of evenly timed pulses create a wave that can be described as a _______<br><br> wave.
    15·1 answer
  • An airplane is accelerating forward due to a force of 3320 newtons acting
    8·1 answer
  • Write down any four points that should be considered during household wiring
    5·2 answers
  • A wave with a frequency of 56 Hz has a wavelength of 27 meters. At what speed will this wave travel?
    8·1 answer
  • If you make a sound by tapping on a glass of water what is the order of vibration
    7·2 answers
  • Summarize the procedures you perform before, during, and after a lab investigation.
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!