The vector has a magnitude of 25 m and makes an angle of 30° with the +x-axis. Which is true about the vector

If you touch a hot light bulb and get burned, that is an example of a. radiation b. convection c. conduction

A2000 kg car is rounding a curve of radius 200 m on a level road. the maximum frictional force the road can exert on the tires of the car is 4000 n. what is the highest speed at which the car can round the curve?

Consider a system to be two train cars traveling toward each other. what is the total momentum of the system before the train cars collide?   kg • what must the total momentum of the system be after the train cars collide?   kg •