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
Pavel [41]
2 years ago
7

A straight line with a positive slope on a velocity-time graph indicates which of the following?

Physics
1 answer:
V125BC [204]2 years ago
4 0

Answer:

constant acceleration

Explanation:

I may be wrong, but I'm almost positive cuz I am also taking physics. ;)

You might be interested in
The potential difference between points A and B in an electric
Flauer [41]

Answer:

i hope  the answear is D becuase  went over this long time ago when i was like you

Explanation:

3 0
2 years ago
How do you convert seconds to minutes, seconds to hours , minutes to seconds and hours to seconds
Bess [88]

Answer:

You could memorize conversions, or use conversion charts, or do a quick internet search for help.

Explanation:

I'll do a few of the conversions for you

<u>Seconds to minutes: </u>

there are 60 seconds in one minute. So if you are wondering how many seconds are in 3 and 1/2 minutes, you would do this conversion:

60 sec/min <em>times </em>x sec/3.5 min

which can be written as 60 x 3.5 = 210. so "x" seconds would be 210 seconds in 3 1/2 minutes.

<u>you could do the same thing in the opposite direction for minutes to seconds:</u>

1 min has 60 seconds. So in 7.25 minutes, how many seconds are there?

1 min/60 sec <em>times </em>7.25 min/x sec

which can be written as 7.25 x 60 = 435. so "x" seconds would be 435 seconds in 7.25 minutes.

<u>hours to seconds:</u>

this one is slightly more complicated

In one hour there are 60 minutes, and in one minute there are 60 seconds.

so to convert from hours to seconds you would do this conversion:

1 hr/60 min times 1 min/60 sec. then the "min" would cancel out, and you would be left with the label "hr/sec". to do the math, it would be 1 hr / 60 x 60.

60x60 = 3600. so you would have 1 hr/3600 sec. So in one hour there are 3600 seconds.

so if you want to know how many seconds are in 6.75 hours:

6.75 hr/x sec <em>times </em>3600 sec/1 hr

6.75 x 3600 = 24,300 so there are 24,300 seconds in 6.75 hours.

I hope this helps :)

4 0
3 years ago
(03.05 LC)<br> Which of the following best describes the use of a renewable resource
RUDIKE [14]

Answer:

Option C or the third option.

Explanation: Water is a renewable resource there is so much of it and it just keeps circulating through the system it doesn't run out.

6 0
3 years ago
the light from andromeda galaxy takes about 2.6 million years to reach earth. which of these statements is correct about the and
-Dominant- [34]
A. it is <span>located at a distance of 2.6 million light years from earth</span>
7 0
3 years ago
What quantity of heat is needed to convert 1 kg of ice at -13 degrees C to steam at 100 degrees C?
Effectus [21]

Answer:

Heat energy needed = 3036.17 kJ

Explanation:

We have

     heat of fusion of water = 334 J/g

     heat of vaporization of water = 2257 J/g

     specific heat of ice = 2.09 J/g·°C

     specific heat of water = 4.18 J/g·°C

     specific heat of steam = 2.09 J/g·°C

Here wee need to convert 1 kg ice from -13°C to vapor at 100°C

First the ice changes to -13°C from 0°C , then it changes to water, then its temperature increases from 0°C to 100°C, then it changes to steam.

Mass of water = 1000 g

Heat energy required to change ice temperature from -13°C to 0°C

          H₁ = mcΔT = 1000 x 2.09 x 13 = 27.17 kJ

Heat energy required to change ice from 0°C to water at 0°C

          H₂ = mL = 1000 x 334 = 334 kJ

Heat energy required to change water temperature from 0°C to 100°C  

          H₃ = mcΔT = 1000 x 4.18 x 100 = 418 kJ    

Heat energy required to change water from 100°C to steam at 100°C  

          H₄ = mL = 1000 x 2257 = 2257 kJ    

Total heat energy required

          H = H₁ +  H₂ + H₃ + H₄ = 27.17 + 334 + 418 +2257 = 3036.17 kJ

Heat energy needed = 3036.17 kJ

5 0
3 years ago
Other questions:
  • Calculate the amount of work done if you use a 100N force to push a 50kg box 5m across the kitchen floor.
    9·2 answers
  • 4.5 billion km, the average separation between the sun and Neptune (report answer in hours). How long does it take light to trav
    15·1 answer
  • How many types of quarks are there and what is the name of one of them
    10·1 answer
  • A 400-kg object has a 100-Newton rightward net force being applied to it. What is the magnitude of the rightward acceleration on
    15·1 answer
  • How are ice liquid water and water vapor different from each other?
    8·2 answers
  • An object weighs 15N in air and 13N when completely
    10·1 answer
  • A bullet 2cm log is fired at 420m/s and passes straight a 10cm thick board exiting at 280m/s
    8·2 answers
  • Lamar writes several equations trying to better understand potential energy. What conclusion is best supported by lamar's worm?
    5·1 answer
  • Help! <br><br> I need to do this quickly!!!
    12·1 answer
  • Echoic sensory memory is used when a lightning bolt flashes across the sky. please select the best answer from the choices provi
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!