In which situation is the acceleration of the car negative?
a) the velocity of a car was 75 km/h over 4 hours.
b) the velocity of a car reduced from 50 km/h to 35 km/h 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/h at 2: 00 pm and at 4: 00 pm the velocity of the car was 85 km/h.

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

Researchers determine that the biodiversity in a woodland region is declining. they identify two major threats to the region's biodiversity, a method to address each threat, and the expected outcome of each method. this information is shown in the table. a) reforestation would not benefit many species because most forest species live on the ground. b) reforestation would take the longest time to be effective because trees take several years to grow. c) biological augmentation would benefit only a few species because is is typically not very effective. d) biological augmentation would take less time to ve effective because it targets the majority of prey species.

In which of the following is positive work done by a person on a suitcase