10. They have very high redshifts and they can change their brightness quickly which indicates that they are very small. 15. The spectral lines are shifted out of the visible spectrum because they are very tiny. Chapter
Then Kaku states that force fields can do more than deflecting laser beams because it can levitate objects by the use of magnetic force fields. To support that, he explains that when we place two magnets opposite to each other, the two magnets will repel each other. However he wrote that making force fields and to levitate heavy objects is nearly impossible since we lack advanced technology. For my response, Kaku doesn’t completely explain everything. Suppose that you have a structure on a planet or a spaceship in the middle of nowhere, and suppose you don't want the force field on all the time either because there are times when protection isn't needed.
Depending on the current temperature on the stove the only way that you would be able to make the stove burn hotter would be to raise the amount of voltage. This means that the voltage would have to be multiplied to make the stove have a larger resistance thus making the heat higher. 7. The Hubble Space Telescope can see stars and galaxies where brightness is 1/50 of the faintest objects now observable using ground-based telescopes. Use the fact that the brightness of a point source, such as a star, varies inversely as the square of its distance from an observer to show that the space telescope can see about seven times farther than a ground-based telescope.
So you see, Newton's 3rd law can explain your balloon powered car. air shoots out the back at high speed and the car moves forwards (more or less) at low speed. So the force used to accelerate all that air backwards has an opposite force on the balloon (reaction) which is tied to the car so pushes in the opposite direction. Well the air's coming out fast in the beginning but thats when the car is only just moving, it takes a while to speed up and it takes even longer if you have a heavy car. So you may be able to argue it shows that f is proportional to Mass x acceleration (but to be honest I think that would be stronging it a bit - balloons don't seem to give very constant thrust.
(additional game, spot the pop culture references) A Wild late star project appears! Pt.1 Project uses explain, depending on how this is written it may be super effective! A star begins its life as a swirling mass of gas known as a nebula. Because of the gases weight, the nebula pulls the gases towards one point or several based on the size of the nebula. The idea could be considered as madness but others may say THIS IS PHYICS!
When comparing a star's brightness from Earth, it will always appear dimmer than the Sun. This is due in large part to Earth's close proximity to the Sun. Comparing the sun's brightness to Capella's from Earth is unfair because Capella is actually made up of four separate stars. The two yellow giants that make up Capella are quite similar to the Sun. All three stars are yellow giants and give off a similar color of light.
The element used in atomic bombs is Uranium-235. Uranium's atoms are unusually large, and henceforth, it is hard for them to hold together firmly. This makes Uranium-235 an exceptional candidate for nuclear fission. Uranium is a heavy metal and has many more neutrons than protons. This does not enhance their capacity to split, but it does have an important bearing on their capacity to facilitate an explosion.
This field, given by g=GMr2, (where g is the acceleration due to gravity or the gravitational field strength, G is he universal gravitational constant, M is the mass and r is the radius of the planet) acts on objects both on Earth and around it. g varies because the Earth is not a perfect sphere. * Explain that a change in gravitational potential energy is related to work done. * Gravitational potential energy is the energy of a mass due to its position within a gravitational field. When work is done on an object there is a corresponding change in kinetic and/or potential energy of the object.
The answer to ”why does the Earth rotate” leads down the dark path of physics. A murky place where few have willingly gone. The answer lies within the law of conservation of angular momentum. Angular momentum is the rotational counterpart of momentum. The angular momentum of an object is defined relative to a fixed point.
There would be a slower rate of combustion which leads to inefficient burning and less heat would be produced in the process. For very high precision work, discuss the major corrections that have to be applied to the calorimeter procedure and included in the calculation of the calorific value. For higher precision, the bomb should be evacuated so as to ensure that there is vacuum in the bomb prior to pumping in pressurised oxygen. This is to ensure that there would be pure oxygen in the bomb, thereby increasing the efficiency. Moreover, as heat would be absorbed by the bomb calorimeter during