Ice, which is the solid state of water, the liquid
Eh? i don’t understand huhu
Answer:
Walking
1914000 J
Explanation:
P = Power
Time is given by
Energy is given by
Running
Walking
It can be seen that the energy walking requires more energy
Because the time taken cycling is less the energy is less.
Answer:
doubles
Explanation:
The relationship between angular speed and linear speed in case of a circular motion is the following:
where
v is the linear speed
is the angular speed
r is the distance from the centre of the circular path
In this proble, the pet hamster moves to a point twice as far from the center; this means that its distance from the centre, r', is doubled:
While the angular speed remains the same. Therefore, the new linear speed is
So, the correct answer is
the linear speed doubles
Answer:
The hydrogen bonds that form when water freezes into ice allow the molecules to be spaced farther apart, thus making them take more space, decreasing the overall density and making it float in the water.