Which of the following accurately describes the differences between the si and english systems of measurement?

a. the two systems are used interchangeably in the scientific and technical communities.

b. the english system is more commonly used in europe than in the united states.

c. the english system is preferred for use in the scientific and technical communities due to its ease of use over the si system.

d. the si system, which is based on the metric system, has been more widely adopted than the english system, which is harder to use.

Modify the equation fδt=δ (mv) to find the force of friction.

Agas is contained in a vertical, frictionless piston–cylinder device. the piston has a mass of 3.2 kg and a cross-sectional area of 35 cm2. a compressed spring above the piston exerts a force of 190 n on the piston. if the atmospheric pressure is 95 kpa, determine the pressure inside the cylinder.

Explain the difference between each pair of concepts. a. frequency and relative frequency b. percentage and relative frequency a. select the correct choice below. a. frequency is the total number of observations in a data set. relative frequency is the number of times a particular distinct value occurs. b. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of a value to the total number of observations. c. frequency is the total number of observations in a data set. relative frequency is the ratio of the number of times a particular distinct value occurs to the frequency. d. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of two different values.