Which piece of lab equipment would be least useful in finding the precise density of an unknown liquid?
a. beaker
b. graduated cylinder c. electronic balance
d. triple-beam balance

State the following: boyle's law and charle's law

In which situation is the acceleration of a car negative? question 5 options: a)the velocity of a car was 75 km/hr over 4 hours. b)the velocity of a car reduced from 50 km/hr over one minute. c)the velocity of a car increased from 40 km. h to 75 km/h over 15 minutes. d)the velocity of a car was 45 km/hr at 2: 00pm and at 4: 00pm its velocity was 85 km/ht.

Describe how the motion of a spring being pushed forward and backward is similar to the motion of air particles in a sound wave.