Which of the following is the best hypothesis? O A. Water and Air would be a good name for a rock band.
B. How much energy do I need to heat 100 g of water from 20°C to 40°C?
O C. More energy is needed to heat 100 g of water than to heat 100 g
of air.
O D. Water is often warmer than air.

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.