Answer:
The correct option is;
The proposal is denied, because participants will likely suffer psychological harm
Explanation:
Among the recommendations in the report on ethical research with children, it is suggested that the following should be observed by researchers;
1) Seeking consent should be a continuous process
2) Contemplate payment forms other than money to allow more discretion on child safety
3) Have two way communication with the child
4) Ask for assent of the child participating in the research
The above APA suggestions where not met by the researcher in the study.
For the work-energy theorem, the work done by the engine on the car is equal to the variation of kinetic energy of the car:

where m=1167 kg is the mass of the car,

is the initial speed and

is the final speed.
Putting numbers into the equation, we find:
Answer:
They all travel at the same speed
Explanation: the speed of light — in a vacuum, but when they come into contact with matter, they slow down. ... Opaque objects transmit little or no visible light, translucent objects transmit some, and transparent objects transmit almost all, which is why we can see through them.
Answer:
currrent will be halved
Explanation:
v = ir
v/r = i multiply both sides by 1/ 2
v / (2r) = 1/2 i
Gravity affet everything and it touches nothing.
Hope this helps!