A car moving with a speed of 35 m/s sees a child standing in the middle of the road. The driver of the car applies brakes and brings the car to rest in 5 sec, just in time to save the child. Calculate the average stopping force of the vehicle, if the mass of vehicle and the driver is 300 kg.​

There is a theory that indicates that dinosaurs became extinct when about 65 million years ago, a large asteroid hit the earth surface. dust caused by this collision blocked the sunlight reaching the earth's surface and many forms of life became extinct due to the cold. fearing this threat, how large the radius of an asteroid should you be looking for if the dangerous asteroid size is approximately the same as the one that killed the dinosaurs? available data suggests that about 18% of that asteroid's mass ended up as a dust spread evenly over earth after eventually settling out of the upper atmosphere. about 0.0180 g/cm^2 of dust, which is chemically different than the earth's rock, covered the earth's surface. typical asteroids have a density of about 1.9 g/cm^3. now that we know the size of the asteroid, how much energy was released during impact, assuming all of it was just the kinetic energy of the asteroid right before the impact?

The respiratory system removes oxygen and water from the body. select the best answer from the choices provided t f

Waves that cause the most damage during an earthquake are a. surface waves c. s waves b. p waves d. ocean waves