Answer:
4374 km/h
Explanation:
The momentum of the 1500 kg object is given by:
where
m = 1500 kg is the mass
v = 1.62 m/s is the velocity
Substituting,
We know that the smaller object of mass m' = 2 kg has the same momentum, so we can find its velocity by re-arranging the same equation:
Now to convert into km/h, keep in mind that:
1 km = 1000 m
1 h = 3600 s
So, we find
a) Draw their beginnings coming out of one point
b) Use addition in parallelogram.
Answer:
34000 J or 34 kJ
Explanation:
From the question, The energy needed to just melt the ice cube does not requires any external temperature or change in temperature, Hence it is called latent heat
By Applying,
Q' = C'm........................ Equation 1
Where Q' = Latent heat, C' = Specific latent heat of fusion of water, m = mass of ice.
Given: C' = 340000 J/kg, m = 100 g = 0.1 kg
Substitute into equation 1
Q' = 0.1(340000)
Q' = 34000 J
Q' = 34 kJ
Answer:
Explanation:
Mass of a proton,
Mass of an electron,
The distance between the electron and the proton is,
We need to find the mutual attractive gravitational force between the electron and proton. The gravitational force is given by :
Where G is the universal Gravitational constant
So, the force between the electron and proton is .
Vectors represent relationships according to the position, velocity, and acceleration (of a moving object).
Because so many physical things are vectors, you have to be able to add and subtract them, helping you understand how the world around you behaves.
I had to do some research (I was never good with physics) so if you have a couple questions, I will try to explain.