For a popular amusement park ride, patrons board a carriage at the top of a high tower and are subjected to a wild ride of terror. Name and state the Newton's Law which applies if the (I) carriage is moving horizontally at a constant speed in straight line (ii) carriage is in free fall. (b) (I) Calculate the length of time that the carriage in part (a) is allowed to free fall if it reaches a speed of 64.8km-1 from rest. ( Use g= 10 ms-2). (ii) Determine the distance the carriage falls.

resonant frequency

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me

305.7

explanation:

density =m/v

density =917/3.00

density = 305.

approximately = 305.7

in four significant figures

the best answer for these questions would be:

1.            c. is smaller

2.            d) concrete operational

3.            b) interaction with the environment – the children interact with their environment can them learn more.

4.            a) parents who reason openly with children can limit a child’s cognitive ability.