90 Een communicatiesatelliet 'hangt' op een vast punt boven de evenaar De afstand van de evenaar tot de satelliet bedraagt 35,7 miljoen meter.
a Licht toe dat de omlooptijd van de satelliet 24 uur bedraagt.
b Bepaal de (baan)snelheid van deze satelliet.

The specific heat of silver is 0.057 calories/gram°c. if 10.0 grams of silver were heated and the temperature of the sample changed by 20.0°c, how many calories of heat energy were absorbed by the sample?

Awoman holds a book by placing it between her hands such that she presses at right angles to the front and back covers. the book has a mass of m = 1.8 kg and the coefficient of static friction between her hand and the book is μs = 0.67. no attempt 50% part (a) what is the weight of the book, fgb in newtons?

Avoltaic cell converts chemical energy to