What is the relationship between an experiment and a hypothesis? A. An experiment should be designed so that the hypothesis is
proven to be true.

B. A well-designed experiment is one that can test a number of
different hypotheses.
O C. A useful hypothesis is one that can guide the design of an
experiment.
O D. A hypothesis is an educated guess as to the outcome of an
experiment.

Answer quickly (15 points) a comet is approaching earth. describe earth’s gravitational pull as the comet gets closer to it. a. remain constant b. increase c. decrease d. reversed

If angle "a" is 25°, angle "b" is: a) equal to angle c b) less than angle c c) greater than angle c

An ice-making machine inside a refrigerator operates in a carnot cycle. it takes heat from liquid water at 0.0 degrees celsius and rejects heat to a room at a temperature of 19.2 degrees celsius. suppose that liquid water with a mass of 76.3kg at 0.0 degrees celsius is converted to ice at the same temperature. take the heat of fusion for water to be l_f = 3.34*10^5 j/kg.how much energy e must be supplied to the device? express your answer in joules.