Answer:
Explanation:
All of the energy from the Sun that reaches the Earth arrives as solar radiation, part of a large collection of energy called the electromagnetic radiation spectrum. Solar radiation includes visible light, ultraviolet light, infrared, radio waves, X-rays, and gamma rays.
Answer:
D)
Explanation:
Force of gravity isn't as strong on the moon, for example. Weight can change based on location, it is not a constant.
Explanation :
It is given that the ad says the ride is 50 meters tall and reaches a speed of 28m/sec at the bottom.
The efficiency is defined as the ratio of the output energy and the input energy.
In this case, the output energy is kinetic energy and the input is potential energy.
Output energy,
Input energy,
Efficiency becomes :
or
The ride is 80% efficient.
Answer:
The density of the sample is 36 g/cm³
Explanation:
m= 972g
l=3cm
V = l³ = 3³ = 27 cm³
density = mass/volume
= 972/27
= 36 g/cm³
Answer:
Explanation:
You didn't ask a question here, but I assume you want the pressure? You can use the ideal gas equation stating that:
PV = nRT
The 'P' is pressure, the 'V' is volume, the 'n is number of moles of gas, the 'R' is the ideal gas constant, and the 'T' is the temperature. First convert the Celsius degrees into Kelvin by using the following relation:
C + 273.15 = K
4 + 273.15 = 277.15K
Now, find the volume of a cylinder by using:
The 'l' is the length of the cylinder
Now just plug and chug everything into the ideal gas equation: