Please help me with the following question: Calculate the weight of a 68.0 kg person:
a) on the surface of the earth
b) at the top of Everest (8848 m above sea level).
c) has 2 1/2 times the radius of the earth
Thank you in advance :)

If you visited mount shasta city (elevation 900 m [3000 ft.]) and found the outside air temperature to be 27°c (81°f), what would be the air temperature at the summit of mount shasta (elevation 4200 m [14,000 ft.]) at that moment-assuming that the temperature conditions with altitude change at an average, or normal, lapse rate?

Acircuit contain a 5-ohm,a3-ohm,and an 8-ohm resistor in series. what is the total resistance of the circuit

Why did thomson's results from experimenting with cathode rays cause a big change in specific thought about atoms ?