QUESTION 1 a) Convert 60 miles per hour to feet per second. Given 1 mile = 1.609 km and 1 foot = 0.3048 m.
(3 marks)

b) A pressure of 3 atm is applied to a circular surface of diameter 4 in; calculate the force experienced by the surface. Give your answer in SI units. (1 atm = 1.01 x 10 pa, 1 in =2.54cm) (4 marks)

c) Given A = (0.210 + 0.41) (1.10 x 102). Show the result for A in correct number of significant figures. (3 marks)

Luke and carrie are driving down a straight section of the interstate at 70 mph in luke's new convertible. carrie is drinking a soda in the passenger seat. when she is done she tosses the bottle straight up in the air, just above the height of the car. what will happen to the bottle if air resistance is neglected? a. the bottle will land in carrie's lap. b. not enough information is given. c. the bottle will land on the interstate in front of the car. d. the bottle will land on the interstate behind the car.

If steel is more dense that lake water, why can a boat float

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.