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
Fiesta28 [93]
4 years ago
12

A cross-country skier can complete a 7.5 km race in 45 min. What is the skier’s average speed?

Physics
2 answers:
Svetlanka [38]4 years ago
6 0

Im not all the way sure but i think it is 2.7778 m/s. I hope this help you. :)

Taya2010 [7]4 years ago
3 0

Answer:

10 km/h is the correct answer

Explanation:

You might be interested in
Are you an antisocial person. Me honestly am
gregori [183]

Explanation:

By the way.. What's the meaning of ANTISOCIAL??..(ㆁωㆁ)

If you tell me the meaning of it, I'll tell you my answer too(ㆁωㆁ)

7 0
3 years ago
Read 2 more answers
A cubical wooden box floating on water rises 1cm when 400 gm of stone is
Ksivusya [100]

Answer:

Explanation:

I'm not  sure you can do this without just a bit more information. I can tell you what the mass of the water is when the rocks are removed. When we know that, we know the volume of the water that was displaced. whether or not this is enough information to determine the volume of the box, I'm not sure.

400 grams raises the box 1 cm.

The density of water = 1 gm / cm^3

400 grams of water = 400 mL or 400 cm^3

The volume of the displaced water = 400 cm^3

The volume a slice from the square prism is B*h

B = 400 cm^2

h = 1 cm

If the base is 400 cm^2 then each side is

s^2 = 400

sqrt(s^2)= sqrt(400)

s = 20

The volume of the box is 20^3 = 8000 cm^3

5 0
3 years ago
sports photographers often use large aperture, long focal length lenses. what limitations do these lenses impose on the photogra
Brut [27]

Answer:

The depth of focus achievable with those lenses is small.

Explanation:

A larger aperture makes it much harder to focus on more than one object. When using a telephoto lens (the ones the question is referring to), the depth of focus is very small. For example, using a telephoto lens to take a photo of a runner might get the runner in focus, but certainly not the track, or the audience behind them. If you look at photos, especially older photos, of Olympians in almost any sport you can see this.

Hope this helps!

6 0
3 years ago
How would it be possible for an object to be traveling with a constant speed and still accelerating?
lys-0071 [83]
Yeah!! It's possible for an object by changing it's direction....
4 0
4 years ago
This illustration represents the compoundA)carbon oxide.B)carbon dioxide.C)carbon monoxide.EliminateD)monocarbon oxide.
pentagon [3]
B.) Carbon Dioxide because the carbon is surrounded by oxygen
3 0
3 years ago
Read 2 more answers
Other questions:
  • If I push on a wall with a force of 3500 N for 5 hours but the wall does not move, how much work have I done.
    9·1 answer
  • PLZ!!!!!HURRY WILL BE FRIEND FOREVER!!!
    6·1 answer
  • Which of the following is not a potential sign of chemical change? a. release of gas c. change of color b. evaporation of water
    9·1 answer
  • The start-up procedure for a batch reactor includes a heating step where the reactor temperature is gradually heated to the nomi
    10·1 answer
  • An object that helps explain ideas about the nautral world is called a model<br> True or False
    6·2 answers
  • Can someone help me on 2 science question,
    7·2 answers
  • Io, a satellite of Jupiter, is the most volcanically active moon or planet in the solar system. It has volcanoes that send plume
    15·2 answers
  • I NEED HELP PLEASE THANKS :)
    12·1 answer
  • Find the escape velocity ve for an object of mass m that is initially at a distance r from the center of a planet of mass m. ass
    8·1 answer
  • A truck of mass 10000kg moving through a sloppy road of length 20km with the help of 5000N force. If the truck climbs the vertic
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!