Category: Physics

Why is a car crash inelastic? Collisions are considered inelastic when kinetic energy is not conserved, but this could be from either a loss or gain or kinetic energy. For example, in an explosion-type collision, the kinetic energy increases. It is common for people to try to conserve energy in a collision. What happens in […]

Can an explosion trigger an earthquake? A nuclear explosion can cause an earthquake and even an aftershock sequence. However, earthquakes induced by explosions have been much smaller than the explosion, and the aftershock sequence produces fewer and smaller aftershocks than a similar size earthquake. Not all explosions have caused earthquakes. Can a nuke cause a […]

What are the methods of measuring resistance? Measurement of Medium Resistance (1Ω – 100kΩ) Ammeter-Voltmeter Method. Wheatstone Bridge Method. Substitution Method. Carey- Foster Bridge Method. Ohmmeter Method. Which method is used for high resistance? Two methods are used to measure high resistance, the constant voltage method and the constant current method. In the constant- voltage […]

How quickly do TMS work? Compared to most antidepressants, which usually take about six weeks to show results, TMS works relatively quickly. Patients report changes in mood starting as early as the first week of treatment. Furthermore, unlike antidepressants, TMS is not something you’ll need every day for the remainder of your recovery. Can you […]

What is the cycle of rain called? As the water vapor rises higher and higher, the cool air of the atmosphere causes the water vapor to turn back into liquid water, creating clouds. This process is called condensation. When a cloud becomes full of liquid water, it falls from the sky as rain or snow—also […]

What is the relationship between the mass of the counterweight and theamount of work done on the projectile? As the force exerted on the projectile is equal to the mass of the counterweight times the gravitational constant, when the mass is increased, the force will also increase. What forces are involved in a trebuchet? A […]

When a parallel plate capacitor is being charged by a DC battery Why does a galvanometer? Answer Expert Verified During charging and discharging of the capacitor, there is a flow of charge from the battery towards the plates of the capacitor, which produces a conduction current in the circuit. Hence, the galvanometer present in the […]

Are 2s and 2p degenerate? The 2s and 2p orbitals have the same energy for hydrogen. They are said to be degenerate energy levels, all the same. When the electron is held in the 1s orbital, it is said to be in its ground state, its lowest energy state. When the electron is a higher […]

Why are evenings cooler than afternoons? Answer. Because in afternoon the sun is on the top and the rays of sunshine comes direct to the earth so we feel warmer and in morning and evening the sun is slightly to the earth so we feel colder then afternoon. Why does the coolest temperature of the […]

Can you see North Star from equator? As you travel northward, Polaris climbs higher in the sky. If you go as far north as the North Pole, you’ll see Polaris directly overhead. If you get as far as the equator, Polaris sinks to the horizon. South of the equator, Polaris drops out of the sky. […]