Car A and Car B are both driving towards each other. Car A's speedometer shows that it is going 30 mph. Car B's speedometer shows that is going 45 mph. What is Car B's speed relative to Car A?

Select one:

-120 mph

-45 mph

-30 mph

-30 mph

-75 mph

Which of these activities performed by a chemist is primarily based on an understanding of physics? using an indicator to determine if a solution is an acid, base, or neutral testing the molar concentration of a solution checking whether a given

What is the acceleration of a car that starts from rest and attains a final speed of 20 m '5 seconds?

With what speed must you approach a source of sound to observe a 25% change in frequency?

Jake is in chemistry class. He makes a list of the chemicals his instructor described and the properties of each.

Three identical buckets are each filled to the same level with steel ball bearings. Bucket A contains bearings that are 0.8 centimeters in diameter. Bucket B contains bearings that are 1.6 centimeters in diameter.

A 7.00 kg mass is being pulled by a 53.8 n force what is the acceleration

2. How is temperature related to kinetic energy?

As stream velocity decrease, which factor will likely increase? A) erosion of the stream bank B) deposition of material in the stream C) amount of material carried downstream D) size of the particles carried downstream

What cells in the nervous signals travel through the nervous system

A mechanic pushes a 3.60 ✕ 103-kg car from rest to a speed of v, doing 5,130 j of work in the process. during this time, the car moves 21.0 m. neglecting friction between car and road, find v and the horizontal force exerted on the car.