A car of mass 1500kg moving at 31 m/s decelerates and stops in a distance of 75m.

Calculate the deceleration of the vehicle (2 marks)

Estimate the braking force on the car. (2 marks)

Moon effect. some people believe that the moon controls their activities. if the moon moves from being directly on the opposite side of earth from you to being directly overhead, by what percentage does (a) the moon's gravitational pull on you increase and (b) your weight (as measured on a scale) decrease? assume that the earth–moon (center-to-center) distance is 3.82 × 10^8 m, earth's radius is 6.37 × 10^6 m, moon's mass is 7.36 × 10^22 kg, and earth's mass is 5.98 × 10^24 kg.

Herbivores, carnivores, and omnivores are all types a. decomposers b. producers c. consumers d. biomes

Unpolarized light of intensity so passes through two sheets of polarizing material whose transmission axes make an angle of 60∘ with each other as shown in the figure. what is the intensity of the transmitted beam, st?