Here’s the solution. There was no angle given so I feel this is the possible answer
Answer:
A. Its translational kinetic energy is larger than its rotational kinetic energy.
Explanation:
Given that
Radius = R
Mass = M
We know that mass moment of inertia for the solid sphere
Lets take angular speed =ω
Linear speed =V
Condition for pure rolling , V= ω R
Rotation energy ,RE
RE= 0.2 MV²
The transnational kinetic energy TE
TE= 0.5 MV²
From above we can say that transnational energy is more than rotational energy.
Therefore the answer is A.
Answer:
GPS Satellites.
Explanation:
You will always be able to have access to 4 of them no matter where you are on the Earth. This is useful for triangulation.
Answer:
The largest allowable Io = 5.863 * 10^26 photons
Explanation:
thickness of slab = 2.8 mm
First we express the energy of each photon
wavelength = 313 nm
attached below is the detailed solution on how i arrived at the answer above
note : we use 2 in the integral because the slab is exposed to light from two different direction
Define sources of energy
Energy is the capacity of a body to do work.
We Classify the sources of energy on the basis of:
<u>Occurence:</u>
- Natural Sources: Natural energy sources are those which are made available to us by nature. Solar energy, wind energy, energy from water (hydro energy) are some of such natural sources of Energy.
- Synthetic Sources: Synthetic energy are those that use man-made materials as sources of energy. Fir example, chemical energy, stored in the batteries, (used in calculators, watches, etc.) is a synthetic source of energy.
<u>Physical</u><u> </u><u>State:</u>
- Solid: Firewood, Charcoal, coal are examples of solid fuels.
- Liquid: Kerosene, Petrol & diesel are all liquid fuels.
- Gas: Petroleum gas, commonly used as LPG (Liquified Petroleum Gas), & natural gas, also used CNG (Compressed Natural Gas), are examples of gaseous fuels
<u>Availability</u><u>:</u>
- Renewable: A renewable source of energy is a natural resource that can replenish itself naturally over a short period of time. Wind, sun, biomass (from plants) & hydropower (from water) are all renewable sources of energy. These arr inexhaustible natural resources.
- Non-renewable: Energy sources which get us & cannot be replaced or replenished in a short period of time are called non-renewable sources of energy. These are also called exhaustible natural resources. Fossil fuels, (like petroleum, natural gas & coal), are non-renewable sources of energy.
<h2>Hope It's Helped! :D</h2>