Force = mass x acceleration
force = 2500kg x (20m/s / 10m/s)
force = 2500kg x 2m/s^2
force = 5000kg m/s^2 = 5kN
i hope this is right (^^)
Answer:
a
The mass is
b
The velocity is
Explanation:
From the question we are told that
The speed of the protons is
The mass of the protons is
The speed of the rebounding protons are
The negative sign shows that it is moving in the opposite direction
Now according to the law of energy conservation mass of one nucleus of the unknown element. is mathematically represented as
Where is the mass of a single proton
So substituting values
The mass of on proton is
So
Now according to the law of linear momentum conservation the speed of the unknown nucleus immediately after such a collision is mathematically evaluated as
Now because before collision the the nucleus was at rest
So
=>
Recall that
So
=>
substituting values
The mass of the alcohol sample is 587.46 g.
<h3>Density:</h3>
This is the ratio of the mass of a body and its volume. The S.I unit of Density is kg/m³
To calculate the mass of the alcohol we use the formula below.
Formula:
- D = m/V............... Equation 1
Where:
- D = Density of the alcohol
- m = mass of the alcohol
- V = volume of alcohol
make m the subject of the equation.
- m = DV................. Equation 2
From the question,
Given:
- D = 0.79 g/mL
- V = 743.62 mL
Substitute these values into equation 2
- m = (0.79×743.62)
- m = 587.46 g
Hence, The mass of the alcohol sample is 587.46 g.
Learn more about Density here: brainly.com/question/15940284
Natural resources like Coal, petroleum etc
Answer: They are put in front for defense so so they can block the opponents from getting the ball
Explanation: