The period of a wave is equal to the time it takes for one wavelength to pass by a fixed point. You stand on a pier watching water waves and see 10 wavelengths pass by in a time of 40 seconds
Answer:
when two object at different temperatures are in contact with each other.
Explanation:
Answer:
I = 2.667 kg m²
Explanation:
The moment of inertia of a body can be calculated by the expression
I = ∫ L² dm
For high symmetry bodies the expressions of the moment of inertia are tabulated, for a rod with its axis of rotation at its midpoint it is
I = 
m L²
let's calculate
I = 2 4²
I = 2.667 kg m²
Because earths gravitational force is greater than that of the moon.
<span>If the core of a supernova explosion contains three or more solar masses of matter, the core will most likely become a black hole. Black holes form when stars explode, and create these areas of such intense gravitational fields that absolutely nothing can escape them if they approach a black hole. Anything near a black hole will disappear without a trace and possibility of ever being found.Although we still don't know much about black holes, we certainly know that nothing can survive the impact.</span>
