Answer:
they would repel because they have the same charge. Charges that are different will stick together.
As we know that mechanical advantage is defined as the ratio of output force and input force for the pulley system
Here we know that it required 10 lb of input force in order to lift the block of 500 lb so here output force is 500 lb
now we have
here we have
now from above formula we have
so mechanical advantage of this system is 50
Answer:
I have examined the different parts of blub and I assume the answer is (D)T and U
Hope this helps you
Answer: D
X-rays generally have high energy and a high frequency.
Explanation:
High-energy X-rays or HEX-rays are very hard X-rays, with typical energies of 80–1000 keV (1 MeV), about one order of magnitude higher than conventional X-rays (and well into gamma-ray energies over 120 keV).
Radio waves have much longer wavelengths and lower frequencies than do visible light waves. In contrast, X-rays have much shorter wavelengths and higher frequencies. Likewise, red light has a longer wavelength than blue light. We can also think of light as consisting of particles or packets on information that we call photons.
Answer:
When something is heated, its atoms vibrate. If one end of a metal bar is heated, the atoms at that end vibrate more than the atoms at the cold end. The vibration spreads along the bar from atom to atom. ... Metals are good conductors of heat.
Explanation:
