Answer:
2.6h
Explanation:
I attached the image below of the work hope you can see it. Hope this helps!
For B, it is because water is a really good conductor of electricity, so the electrician will get shocked
Answer:
Plug in the given values and solve for the final velocity. Remember, when the ball is on the ground it has a height of zero.
Explanation:
Answer:
a. Doppler and transit observations.
Explanation:
By means of the dopler effect, the radial velocity of an extrasolar planet can be measured, this is achieved by observing Doppler shifts in the spectrum of the star around which the planet orbits. This measure, combined with the transit observations, makes possible determine the density of the planet.
Answer:
Explanation:
Dimensions of mattress 100 cm by 194 cm by 14 cm
= Mass of mattress = 4 kg
= Density of water = 
g = Acceleration due to gravity = 
Volume of mattress
Weight of water displaced is equal to the buoyant force
Mass of water
Mass of person would be
Weight of the person would be
The air mattress could hold a person that weighs up to .
