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
Mamont248 [21]
3 years ago
6

What is the average speed of a car that traveled 222.0 miles in 4.596 hours?

Physics
1 answer:
vivado [14]3 years ago
4 0
48.3 mph
If you need more answers like this I suggest countcalculate .com
You might be interested in
Mechanical Energy is _______ when the amount of kinetic and potential energies added together remains the same.
viktelen [127]
Definitely Conserved
5 0
3 years ago
A biker goes up hill with a constant speed of 10km/h. Then he goes downhill with a constant speed of 50km/h. What's his average
Sladkaya [172]

This is not as simple as it looks.  

His average speed is NOT (10km/hr + 50km/hr)/2 = 30 km/hr.

You have to use the definition of speed:

Speed = (total distance covered) / (time to cover the distance).

Let's say the distance up (and down) the hill is 'd' .

Then the time it takes to go up the hill is (d/10) hours.

And the time it takes to come down the hill is (d/50) hours.

Total distance = 2d km

Total time = (d/10) + (d/50) = (5d/50) + (d/50) = 6d/50

Speed = distance/time = 2d/(6d/50) = 100d/6d

<em>Speed = </em>100/6 = <em>16-2/3 km/hr</em>

4 0
3 years ago
What is the difference between biomass and fossil fuels main points?
skad [1K]

Answer:

Fossil fuels release carbon dioxide into the atmosphere. Natural gas is the best fossil fuel in terms of energy output per unit of carbon dioxide emitted. Biomass is renewable because a new crop can be grown after each harvest, and biomass is a low carbon fuel. Biomass has the approximate chemical formula CHO.

Explanation:

5 0
3 years ago
Joule’s law is a linear relationship, that is, the more heat you provide, the greater the temperature change. However, in the pr
Nitella [24]

Answer:

hydrogen bridge

Explanation:

Joule's relationship to heat and temperature is true for all materials where we assume that interatomic forces are linear, when atoms separate these forces decrease. There is a point where the separation between atoms is enough that thermal agitation can separate the molecules and there is a change of state, generally from solid to liquid and from liquid to vapor. When these changes of state are occurring all the energy supplied is used to break the links, so the temperature does not change.

In the specific case of water, there is a bond called a hydrogen bridge that breaks around 4ºC, therefore, at this temperature there is a deviation from the curve since this link is being broken, this does not lead to a change of macroscopic state.

For the other temperatures the water behaves like the other bodies.

7 0
3 years ago
What is the distance covered by a Freely falling object 5 seconds after being dropped ? After 6 seconds?
mario62 [17]

This year is 60 years since I learned this stuff, and one of the things I always remembered is the formula for the distance a dropped object falls:

D = 1/2 A T²

Distance = (1/2) (acceleration) (time²)

The reason I never forgot it is because it's SO useful SO often.  You really should memorize it.  And don't bury it too deep in your toolbox ... you'll be needing it again very soon. (In fact, if you had learned it the first time you saw it, you could have solved this problem on your own today.)

The problem doesn't tell us what planet this is happening on, so let's make it easy and just assume it's on Earth.  Then the 'acceleration' is Earth gravity, and that's 9.8 m/s² .

In 5 seconds:

D = 1/2 A T²

D = (1/2) (9.8 m/s²) (5 sec)²

D = (4.9 m/s²) (25 sec²)

D = 122.5 meters


In 6 seconds:

D = 1/2 A T²

D = (1/2) (9.8 m/s²) (6 sec)²

D = (4.9 m/s²) (36 sec²)

D = 176 meters


5 0
3 years ago
Other questions:
  • Which of the following body systems has a component that stops functioning and leads to diabetes?
    9·1 answer
  • A man stands on the roof of a building of height 13.0m and throws a rock with a velocity of magnitude 33.0m/s at an angle of 25.
    14·1 answer
  • A 2.00-W beam of light of wavelength 126 nm falls on a metal surface. You observe that the maximum kinetic energy of the ejected
    6·1 answer
  • Gold has a density of 19.32 g/cm3. what is the volume of a sample of gold with a mass of 27.63 grams?
    13·1 answer
  • Which law relates to any pushing or pulling applied to the body to create motion?
    9·2 answers
  • Match each term with the best description. DispersionRayRefractive indexSnell's lawTotal internal reflection Ratio of the speed
    8·1 answer
  • Explain how it is possible for two different elements to have the same mass number
    10·2 answers
  • A point source at the origin emits sound of frequency 175 Hz uniformly in all directions. On the x-axis at x=100 m, the sound in
    8·1 answer
  • Lf a dropped hammer's velocity increases from 0.Omis to 15.0 m/s in 4.04s
    14·1 answer
  • In which direction does the frictional force act on the cube? A) upwards B) downwards C)in all the directions D) side to side
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!