Category: Physics

How much energy is stored in spring? if you stretch a spring with k = 2, with a force of 4N, the extension will be 2m. the work done by us here is 4×2=8J. in other words, the energy transferred to the spring is 8J. but, the stored energy in the spring equals 1/2x2x2^2=4J (which […]

Do I need to turn off solar panels to clean? Your system should be completely shut down before cleaning as per the shutdown procedure listed in your user manual or your inverter manufacturer’s operating manual. DC Systems will need to be completely shut down. AC Systems should be shut down via the Solar Supply Main […]

Why gravity is always attractive? In the case of gravity, mediated by spin 2 particles, charge is mass, which is always positive. Thus, q1q2 is always greater than zero, and gravity is always attractive. For spin 0 force mediators, however, there is no restriction on the charges and you can very well have repulsive forces. […]

What is meant by a Polarised wave? Polarized light waves are light waves in which the vibrations occur in a single plane. The process of transforming unpolarized light into polarized light is known as polarization. There are a variety of methods of polarizing light. How do you determine the polarization of a wave? In general, […]

Can we send nuclear waste into space? We don’t send nuclear waste to space for the following reasons. Firstly, it is not economically feasible to send costly rockets into space, just to dump nuclear waste into space. However, with reusable rockets, the possibility do arise. But the re-used rocket will become radio active. Why dont […]

What is the drag coefficient of a f1 car? Typical Formula 1 car drag coefficients are between 0.7 and 1.1, depending on the circuit the car is set up for. ! A lot of this drag is due to the wings but a lot of it is due to the uncovered wheels. What car has […]

Is a seed alive or dead? Seeds are living! They are just typically in a dormant state, which means they require very little of the resources necessary to stay alive, until they are in the appropriate conditions to grow. Answer 4: Inside of a seed is an embryo – a baby plant. What is seed […]

How can we protect cliffs from erosion? Sea walls. Concrete walls that are placed at the foot of a cliff to prevent erosion. They are curved to reflect the energy back into the sea. How can we protect our coastal areas? 15 Ways to Help Protect the Ocean and Coasts, Regardless of Where You Live […]

Which is faster electron or proton? Hence the electron ismoving faster than the proton. Are protons found in all matter? Protons and neutrons, each with masses of approximately one atomic mass unit, are collectively referred to as “nucleons” (particles present in atomic nuclei). One or more protons are present in the nucleus of every atom; […]

How do you apologize in a formal way? Here are six other words for saying sorry. My Apologies. My apologies is another word for “I’m sorry.” It’s rather formal, so it’s fine for business contexts. Pardon/Pardon Me/I Beg Your Pardon. Pardon is a verb which means to allow as a courtesy. Excuse Me. Mea Culpa. […]