How would you explains social control to someone who has no idea about our society?

How can cars be made to be more fuel efficient?

Each statement below makes a claim about black holes. Based on current scientific understanding of black holes, sort the statements into the correct bin according to whether the statement is: A) True (based on current science), meaning that

Why is it difficult to block light

In gas exchange, oxygen passes from the alveoli into the blood. True or false?

What is meant by the expression action at a distance? (physics)

the acceleration of gravity is 28 times on sun than earth. Imagine there is a space suit that let you stand on sun. Calculate the weight of 100 kg person on earth in newtons

A force of 20 n acts upon a 5 kg block, calculate acceleration of the object

What resultant force is needed to accelerate a train of mass 3.41000000 kg from rest to 15.0ms in exactly 20s

I to fall in love with someone or to at least get a boyfriend

Is rain falling a contact or noncontact force