Category: Physics

What determines the amount of bending of a light wave? The amount of bending depends on two things: Change in speed – if a substance causes the light to speed up or slow down more, it will refract (bend) more. Angle of the incident ray – if the light is entering the substance at a […]

How do you find the sum of forces? The net force is the vector sum of all the forces. That is, the net force is the resultant of all the forces; it is the result of adding all the forces together as vectors. For the situation of the three forces on the force board, the […]

What is the difference between DNA and proteins? DNA contains the genetic information of all living organisms. Proteins are large molecules made up by 20 small molecules called amino acids. All living organisms have the same 20 amino acids, but they are arranged in different ways and this determines the different function for each protein. […]

What is difference between imperial and metric? In the Imperial Knowledgebase, all constants and measures are based on the imperial units. Whereas most countries use the metric system which includes measuring units of meters and grams, in the United States, the imperial system is used where things are measured in feet, inches, and pounds. Did […]

What are the causes of echo? Echoes. An echo is a sound that is repeated because the sound waves are reflected back. Sound waves can bounce off smooth, hard objects in the same way as a rubber ball bounces off the ground. Although the direction of the sound changes, the echo sounds the same as […]

Which line of defense is most important? The third line of defense is most important because it involves the cells and proteins of adaptive immunity, responding directly to specific antigens. All three lines of defense depend on each other to function properly and no single line is more important than the other. What is the […]

How much gold can you keep home? CBDT has clarified the prescribed quantity of gold considered allowable. Gold within this limit will not be seized even at the time of search at the assessee’s premises. A married woman can have up to 500g of gold. An unmarried woman can have up to 250g of gold. […]

Which component of the electric field is always continuous at the boundary? Which component of the electric field intensity is always continuous at the boundary? Explanation: At the boundary of the dielectric-dielectric, the tangential component of the electric field intensity is always continuous. How do you find initial boundary conditions? In most physical problems these […]

What is the device that converts electrical energy to heat energy? Generator What are the three devices that change electricity to heat energy? (1) Heater and home appliances like press iron, geyser etc, converts electrical energy into heat energy. (2) Electric bulb and rods converts heat energy to light energy. (3) A motor and robot […]

What are the four steps of contraction? Terms in this set (6) Step 1: Contraction Cycle Begins. Begins with the arrival of calcium ions within the zone of overlap. Step 2: Active-Site Exposure. Step 3: Cross-Bridge Formation. Step 4: Myosin Head Pivoting. Step 5: Cross-Bridge Detachment. Step 6: Myosin Reactivation. What is the best example […]