Answer:m1v1 + m2v2 = (m1f + m2f)vf. 3000kg(10.0m/s) + (15000kg)(0.0m/s) = (18000kg)(vf).
Explanation:
Answer:
A- 20 protons and 20 electrons
Explanation:
The mathematical definition of work (W) is force (F) multiplied by distance (x). In order to determine the distance for fixed force and work the above equation needs to be rearranged to make x the subject. The work divided by the force is equal to the distance. In this case the mother can push the baby carriage by a distance equal to 2920 divided by 62, which is 47.1 metres.
Answer:
Impulse is 
The average force is 
Explanation:
When a mass
undergoes a change in velocity
, its impulse
is

and if a force
is acting for time
, then the impulse
is given by

Now the mass of the spores in kg is

we calculate the impulse from the first formula:


Now that we have impulse, we calculate the average force on the spore from the second formula:

