Question 1 Muluple Choice worth 2 pus)
What does it mean to say that scientific models are open to change?

A. Scientific models are usually not very accurate.

B. Scientific models can be adjusted when new information is found.

C. People can adjust scientific models to fit their personal beliefs.

D. Experimental results can be changed to fit the accepted model.

Aball has an initial velocity of 3 m/s. if there is no friction, what is the highest it could roll?

Increasing the pressure on one spot of a fluid will increase the pressure everywhere else in the fluid a. pascals principal b. archimedes' principal c. bernoulli's principal

An important dimensionless parameter concerned with very high-speed flow is the mach number, defined as v/c, where v is the speed of the object such as an airplane or projectile, and c is the speed of sound in the fluid surrounding the object. for a projectile traveling at 1170 mph through air at 50 ˚f and standard atmospheric pressure, what is the value of the mach number?