What causes free fall? Free Fall Motion As learned in an earlier unit, free fall is a special type of motion in which the only force acting upon an object is gravity. Objects that are said to be undergoing free fall, are not encountering a significant force of air resistance; they are falling under the […]
How many times you should pee a day?
What is the difference between primary and secondary structure of protein?
What is the difference between primary and secondary structure of protein? Primary structure is the amino acid sequence. Secondary structure is local interactions between stretches of a polypeptide chain and includes α-helix and β-pleated sheet structures. Quarternary structures is the orientation and arrangement of subunits in a multi-subunit protein. What is an example of a […]
What are two things you need to know to describe the velocity of an object?
What are two things you need to know to describe the velocity of an object? Velocity is a physical vector quantity; both magnitude and direction are needed to define it. When can we say an object is in motion? If an object is observed from a position, then if the object changes its positions with […]
What is the wavelength of the absorbed photon?
What is the wavelength of the absorbed photon? 1 Answer. Ernest Z. The atom absorbs a photon of wavelength 102.6 nm and emits two photons of wavelengths 656.3 nm and 121.5 nm. Can wavelength be negative? By convention, a wavelength can never be negative. What is the meaning of negative wavelength? “Negative” refers to direction. […]
Why was the 1950s the golden age of television?
Why was the 1950s the golden age of television? Many critics have dubbed the 1950s as the Golden Age of Television. TV sets were expensive and so the audience was generally affluent. Television programmers knew this and they knew that serious dramas on Broadway were attracting this audience segment. During the 50s, quiz shows became […]
What are the 3 main types of financial aid?
What are the 3 main types of financial aid? There are three types of federal financial aid: grant programs, work-study programs, and student loan programs. Federal Grant Programs. Federal Work-Study Programs. Federal Loan Programs. What are the four main sources for financial aid? There are four main types of financial aid: loans, grants, scholarships, and […]
Can shooting stars turn direction?
Can shooting stars turn direction? They can come from any direction and move in any direction. If you hear one, see coloured flashing lights on it, or it changes direction suddenly, then you’ve spotted an aircraft, a bird or Superman. Keep watching it and you’ll see it right down to the horizon or until it […]
Is 42 a composite number?
Is 42 a composite number? The number 42 is significant and is an even composite number which means that it has several factors, in this case, 42 has 8 factors. Is 18 a composite number? Composite numbers A composite number is a natural number divisible by more than just 1 and itself. Another definition: A […]
What is rolling friction give examples?
What is rolling friction give examples? The force resisting the motion of a rolling body on a surface is known as rolling friction or rolling resistance. Rolling of ball or wheel on the ground is an example of Rolling friction. The other type of friction is sliding friction. How do you find maximum static friction? […]