Answer:
1879.33J
874.1W
Explanation:
Given parameters:
Distance covered = 2.91m
Time taken = 2.15s
Mass of Bart = 65.9kg
Unknown:
Work done = ?
Power rating = ?
Solution:
Here, the work done is related to the the potential energy in climbing this flight of stairs.
Work done = Potential energy = mgH
where m is the mass
g is the acceleration due to gravity
H is the height
Work done = 65.9 x 9.8 x 2.91 = 1879.33J
Power is defined as the rate at which work is being done.
Power = 
= 
= 874.1W
Answer:
You will cover a distance of 1569.06 metres. Or you could round down to 1,569m.
Explanation:
20.7*75.8=1563.06
low speed means non relativistic.
the velocities relative to an observer outside the train are added.
51 m/s.
Were ita light wave, rather than Emma, the speed wold not depend on the speed of the train. Though that may sound surprising, I think it's true. Special relativity says more about this.
Special relativity "shows up" when the speeds get very high indeed.
Explanation :
The interaction between two objects is termed as the collision. The collision can be of two types i.e. elastic collision and inelastic collision.
In this case, two identical carts travel at the same speed toward each other, and then a collision occurs. In an inelastic collision, the momentum before and after the collision remains the same but its kinetic energy gets lost.
After the collision, both the object sticks over each other and moves with one velocity.
Out of the given graph, the graph that shows a perfectly inelastic collision is attached. It shows that after the collision both the carts move with the same velocity.
Answer:d
Viruses do not have organelles
Explanation
Viruses do not have cells; therefore they do not have organelles. Viruses contain genetic material (DNA or RNA) and a way containing and delivering that genetic material into a cell.
