1. A car with a mass of 750kg moves on flat ground. The friction force of the car is in the opposite direction of speed and is set at 200N. A. Calculate the engine power that the car starts from at a speed of 4 m / s in 5s. B. Calculate the acceleration of the car C. Calculate the change in the amount of motion and the change in kinetic energy​

Imagine you are riding on a yacht in the ocean and traveling at 20 mph. you then hit a golf ball at 100 mph from the deck of the yacht. you see the ball move away from you at 100mph, while a person standing on a near by beach would observe your golf ball traveling at 120 mph (20 mph + 100 mph). now imagine you are aboard the hermes spacecraft traveling at 0.1c (1/10 the speed of light) past mars and shine a laser from the front of the ship. you would see the light traveling at c (the speed of light) away from your ship. according to einstein’s special relativity, how fast will a person on mars observe the light to be traveling? a) 0.1c (1/10 the speed of light) b) c (the speed of light) c)1.1c (c+0.1c)

What is the average speed of a car that travels 40mph for 1 hour and 60 mph in another hour will mark brainliest

Individuals who live below the poverty line get seriously ill more often than those who do not what could be the hidden variable in this situation?