Category: Physics

What is mean resistance? resistance. [ rĭ-zĭs′təns ] A force, such as friction, that operates opposite the direction of motion of a body and tends to prevent or slow down the body’s motion. A measure of the degree to which a substance impedes the flow of electric current induced by a voltage. Resistance is measured […]

What are the health risks of genetically modified foods? The results of most studies with GM foods indicate that they may cause some common toxic effects such as hepatic, pancreatic, renal, or reproductive effects and may alter the hematological, biochemical, and immunologic parameters. Are dried beans GMO? All dry bean varieties in the United States […]

Are the strong tissues which hold the bones together? The bones at a joint are held together by strong bands of tissue called ligaments which allow the bones to move. What tissue connects muscle to bone? Tendons What tissue cushions and protects the ends of bones? Cartilage is a type of firm, thick, slippery tissue […]

How many miles can 1 gallon of gas take you? 20 miles How much gas does it take to go 5 miles? Cost To Drive 5 Miles MPG $2 per gallon $3 per gallon 5 MPG $2.00 $3.00 6 MPG $1.67 $2.50 7 MPG $1.43 $2.14 8 MPG $1.25 $1.88 How much does it cost […]

How do you calculate change in length? The equation for change in length is traditionally rearranged and written in the following form: FA=YΔLL0. F A = Y Δ L L 0 . The ratio of force to area, FA , is defined as stress (measured inN/m2 ), and the ratio of the change in length […]

Can a rail gun shoot into space? The system calls for a two-mile- long rail gun that will launch a scramjet, which will then fly to 200,000 feet. The scramjet will then fire a payload into orbit and return to Earth. The process is more complex than a rocket launch, but engineers say it’s also […]

What are the first two criteria for something to be a mineral? what are the first two criteria for something to be a mineral? The first two criteria are; be formed from natural processes and to be an inorganic substance. This means it occurs naturally in earth and is not made up of living organisms. […]

How long do ceramic cups last? 10 years Which is better porcelain or ceramic coffee mugs? The choice between porcelain mugs and other ceramic mugs should be made on the basis of suitability. Porcelain mugs are good choices when durability is not a major concern and an air of elegance is desired. Other ceramic mugs […]

What happens when energy is released? Exothermic reactions release energy in the form of heat, so the sum of the energy released exceeds the amount required. However, in exothermic, endothermic, and all chemical reactions, it takes energy to break the existing chemical bonds and energy is released when the new bonds form. Is energy released […]

What are the four parts of an operon? An operon consists of an operator, promoter, regulator, and structural genes. The regulator gene codes for a repressor protein that binds to the operator, obstructing the promoter (thus, transcription) of the structural genes. The regulator does not have to be adjacent to other genes in the operon. […]