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
Sidana [21]
3 years ago
7

How do i explain to kids how much water on earth is drinkable?

Physics
1 answer:
Sergio [31]3 years ago
5 0
3% of water on earth is fresh water and 2.4% of that is permanently frozen in glaciers 
You might be interested in
What caused the slope to change around 1905 and 1906?
sesenic [268]
Hydro then electric or solar power
8 0
3 years ago
Read 2 more answers
Help on matching please, struggling on it. Even just 1 or 2 would help
n200080 [17]

Answer:

7. free fall -- h. 9.8m/s^2

3. Velocity -- x. 60 km/hr west

6. Acceleration -- d. change in velocity/time

8. Centrifugal --  s. towards the centre

13. Work done --w. Force * displacement

5. Uniform circular motion --j. spin cycle in washer

18. Power -- r. kW an hour

7. g -- a. 10N

hope this helps

6 0
2 years ago
Two engines do same work in different time intervals.Which will have more power?​
Angelina_Jolie [31]

Answer:

who done work in less time will have more power

Explanation:

4 0
3 years ago
A karate master wants to break a board by hitting the board swiftly with his hand. The master's hand has a mass of 0.30 kg, and
slava [35]

Answer:

f=-1380N

Explanation:

A karate master wants to break a board by hitting the board swiftly with his hand. The master's hand has a mass of 0.30 kg, and as it strikes the board, his hand has a velocity of 23.3 m/s. The master contacts the board for 0.0050 seconds

.the concluding part to the question should be

What is the impact force (impulse) on the board?

solution

from the Newton's second law of motion which states that

the rate of change in momentum is directly proportional to the force applied

f=m(v-u)/t

f=0.3(0-23.3)/0.005

f=-1380N

f=force impact

m=mass of the karates master's hand

t=time for the impact

v=0m/s final velocity

u=initial velocity

6 0
3 years ago
Which of these are broken down during chemical, but not physical, changes?
Doss [256]

I think your answer is D

because you already said its not a B is a liquid and  not a solid so its harder to have a chemical change C is solutions and D is compound and I know for a fact that a compound is a solid and if C is also a solid then that could also be a possible answer choice.

5 0
3 years ago
Other questions:
  • A motor is used to operate a lift. There is a man in the lift. The input power of the motor is 6200 watts. The lift and the man
    8·1 answer
  • Please help<br> Right answers please<br> Will mark brainliest
    14·1 answer
  • Two students are watching a person riding a skateboard up and down a ramp. Each student shares what they think about the energy
    14·1 answer
  • A(n) ___ keeps a reaction from occurring by increasing the activation energy required for a reaction to occur. A. inhibitor B. c
    9·2 answers
  • The nuclear equation is incomplete. Superscript 239 Subscript 94 Baseline P u + Superscript 1 Subscript 0 Baseline n yields Supe
    10·1 answer
  • 1) Calculate the torque required to accelerate the Earth in 5 days from rest to its present angular speed about its axis. 2) Cal
    13·1 answer
  • Help me with number 28.
    5·1 answer
  • Which cells in the immune system identify pathogens and distinguish one pathogen from another?
    10·2 answers
  • How would electron domains impact the magnetism of the substance?
    6·1 answer
  • The main illustration in the video shows the life track of a one-solar mass star. Each point along this track represents _______
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!