Why is it harmful to wear dark sunglasses which have no UV block? Essay​

If the textbook weighs 19.6 newtons on venus,what is the strength of gravity on venus?

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up

Beryl states that insulation with the smallest possible thermal conductivity is best to keep a house warm in winter, but worst for keeping a house cool in summer. sapphire insists the reverse is true: low thermal conductivity is good in the summer, but bad in the winter. which one, if either is correct? a. beryl, because low thermal conductivity results in low heat transfer. b. beryl, because low thermal conductivity results in high heat transfer. d. sapphire, because low thermal conductivity results in high heat transfer. e. neither, because low heat transfer is desirable both in summer and in winter.