Category: Physics

What life would be like without gravity? “Earth itself would most likely break apart into chunks and float off into space.” A similar fate would befall the Sun, according to this video by DNews. Without the force of gravity to hold it together, the intense pressures at its core would cause it to burst open […]

What is the most effective aerobic exercise? Exercise Options Walking. Walking is one of the simplest and most available aerobic exercises. Cycling. Cycling is another type of aerobic exercise with wide appeal and value. Ski Machines, Stair Climbers, Steppers, Ellipticals. Swimming Activities. Jogging, Aerobic Dance. How long should you do aerobic exercises? Get at least […]

Which molecule has the most potential energy ATP or ADP? ATP has more potential energy than ADP since it has three negatively charged phosphates held together vs only two in ADP. Is potential energy stored in ATP? An ATP molecule contains potential energy, much like a compressed spring. When a phosphate group is pulled away […]

What is the purpose of torque? Torque is a crucial part of generating power from a car’s engine, as it represents the load an engine can handle to generate a certain amount of power to rotate the engine on its axis. The force is measured in pounds (lb) per foot (ft) of rotation around one […]

What is the safe current density for cathode? The current densities are different for anode and cathode. Let us simplify the distribution/ diffusion of current in the electrolyte as shown in figure. A2 = area of cathode = 7 x 8 cm2. current density in cathode = current / A2. How do you convert current […]

How do we see sound waves for kids? How to See Sound Step-by-step Cover bowl with plastic cling wrap. Make sure it clings tightly. Put small amount of uncooked rice on top of plastic wrap covered bowl. Hold your tray or empty cereal box close to the rice and hit hard to make noise. Watch […]

What is an example of a testimony? An example of testimony is the story a witness tells on the witness stand in court. An example of testimony is what a person says about a religious lesson he believes he learned from God. What are the two types of testimony? There are two major types of […]

Can you kick the basketball? A player shall not kick the ball or strike it with the fist. Kicking the ball or striking it with any part of the leg is a violation when it is an intentional act. A player may not use any part of his leg to intentionally move or secure the […]

Why do you feel colder when wet or when you get dry out of a swimming pool? The answer is evaporation. When you step off the bathmat, the water clinging to your skin starts to evaporate. But to change into a gas, that water needs help—namely, it needs heat energy. Why a swimmer feels cold […]

How heat works in the mantle? Mantle convection is the process by which the excess heat in the Earth’s deep interior is transferred to its surface through the fluid-like motions of the rocks in the mantle. Convection occurs in the Earth’s mantle because it is the most efficient way for the Earth to cool or […]