You have arrived at the final accident scene of the day. Two cars of equal mass (2,000 kg each) were involved in a head-on accident at a four-way-stop intersection. Here is what you know: Car 1 started at rest and coasted toward the intersection from the top of a 50-meter hill.
Car 2 was on a flat stretch of road at the bottom of the hill in front of Car 1.

Aferris wheel is a vertical, circular amusement ride with radius 9 m. riders sit on seats that swivel to remain horizontal. the ferris wheel rotates at a constant rate, going around once in 9 s. consider a rider whose mass is 56 kg. at the bottom of the ride, what is the perpendicular component of the rate of change of the rider's momentum? at the bottom of the ride, what is the vector force exerted by the seat on the rider?

Carbon is allowed to diffuse through a steel plate 15 mm thick. the concentrations of carbon at the two faces are 0.65 and 0.30 kg c/m^3 fe, which are maintained constant. if the preexponential and activation energy are 6.2 x 10-7 m2 /s and 80,000 j/mol, respectively, compute the temperature at which the diffusion flux is 1.43 x 10^-9 kg/m^2 -s.

How many neutrons does element x if it’s atomic number is 28 and its mass number is 87