Answer:
Explanation:
A car of mass 1000kg pushes 2000kg
The forward force is 4500N
Then, summation of the forward forces is ma
ΣF = Σ(ma) = m1a1 + m2a2
Since the body are moving together then, they will have the same acceleration(a)
ΣF = Σ(ma) = (m1+m2)a
Let m1=1000kg.
m2=2000kg
F=4500N
Then,
4500=(1000+2000)a
4500=3000a
Then,
a=4500/3000
a=1.5m/s²
Power = Δenergy/Δtime or Δwork/Δtime
To solve this problem you first have to find what the energy or work value is. In this case I am going to solve for work.
Work = force × distance
= 450 × 5
Work = 2250 J
Now that you know what the work value is you plug it into the power formula
P = Δwork/Δtime
= 2250 J/2 min
Power = 1,125 watts
hope this helps :)
Answer:
the power rating is high which is equal to 120V which is 10 amps
Explanation:
Answer:
D
Explanation:
You should compare your results and data with your original hypothesis. It is okay to have a hypothesis that was shown to be false. That's science. Things do not always work out. You can always discuss what you could have done differently and things that went wrong. There is no right answer in science!
Answer:
Explanation:
We start by writing the formula of the energy stored between two charged parallel plates, which is:
Where <em>Q</em> is the charge on one of the plates and <em>C</em> its capacitance, which for two parallel plates is:
Where A is the area of each plate, d the distance between them and 
the permittivity of the medium, in our case the vacuum, 
.
Putting all together:
Which means:
Which for our values is:
