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FrozenT [24]
2 years ago
13

Good morning! Can someone please answer this, ill give you brainliest and you will earn 50 points.

Physics
1 answer:
kicyunya [14]2 years ago
8 0

Correct ones are

  • Technical improvements that have made alternative energy sources more practical to use
  • Increase in concern for environment.

why?

Fossil fuels are hydrocarbons

  • Hydrocarbons on burning with oxygen releases harmful carbon dioxide .
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I REALLY NEED HELP!!!!
Katarina [22]

Answer:

400 Ns

Explanation:

Impulse = Change in momentum

i.e I = ΔP

So that,

Impulse experienced by Max = Change in Max's momentum

Change in Max's momentum = m(v - u)

Where m is the mass, v is the velocity after collision, and u is the velocity before collision.

m = 100.0 kg, v = 2.0 m/s, u = 6.0 m/s

Change in Max's momentum = 100 x (2 -6)

                             = -400 kg m/s

The negative sign shows that the change in momentum was against his direction of motion.

Impulse experienced by Max = 400 Ns.

Thus,

Max experienced an impulse of 400 Ns as a result of the collision.

4 0
3 years ago
Which of the following is a vector quantity?
dezoksy [38]

Answer: B. 23 inches to the left

Explanation: A vector quantity involves both magnitude and direction.

7 0
3 years ago
What factors does the speed of atoms depend on?
Vedmedyk [2.9K]
<h2>Answer:</h2>

The speed of atoms depends upon:

  • Temperature: Speed of atom is directly proportional to the temperature of atoms.
  • Pressure : It is also directly proportional to the speed of an atom.
  • Volume of gas : As the volume of gas increases, collision between atoms increases with increasing the speed of atom
  • Number of atoms surrounding: More number of atoms leads to more collisions, increasing speed of atoms.


4 0
3 years ago
A person runs with a constant velocity of 1.2 m/s for 30 seconds. how far do they travel?
Nataliya [291]
They will travel 36 m
8 0
3 years ago
A 5.5kg mass is pushed with a force of 31N across a table having μk of 0.350. Find how fast it will accelerate, taking friction
Ipatiy [6.2K]

Answer:

3.66m/s^2

Explanation:

First, we need to find the friction which is F=u*N.

After that, find the resultant force by substarcting the friction from the forward force.

Lastly,using the formula F=ma, substitute in the known values of F and m to find a

4 0
3 years ago
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