Which of the following is the best example of heat being transferred from one object to another by direct contact? a. a fire in a fireplace warms the entire room. b. the coldest air in the supermarket is in the aisle where the frozen foods are kept. c. a drink can be cooled off by dropping ice cubes into it. d. sunlight feels warmest when it falls directly on a person's skin.

Rutherford's experiment indicated that matter was not as uniform as it appears what part of his experimental results implied this idea

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false

Calculate the estimated density of each ball. use the formula d = m/v where d is the density, m is the mass, and v is the volume. record your calculations in table a of your student guide. given that the density of water is 1.0 g/cm3, make a prediction about whether each ball will float in water. record your prediction in table a. what is the estimated density of the table tennis ball? record your answer to the nearest hundredth