A sports car at point A drives down a straight stretch of road CD. A police car at point B uses radar to measure the speed of the car, and obtains a reading of 51 km/h. For the position of the car given below, determine the speed of the car. Note that the 51 km/h speed measured by the radar gun is the rate of change of the distance between the car and the radar gun. The car is 30% of the distance from point C to point D. B(75,600,40)m C(-150,-50,30)m D(200,400,-10)m Actual speed of the car: km/h

grav forces affect all objects magnetic forces affect magnetic objects and electric currents

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.

d. platinum would have the greatest temperature increase because it has the lowest specific heat.

305.7

explanation:

density =m/v

density =917/3.00

density = 305.

approximately = 305.7

in four significant figures