Your friend challenged you to a race you know in order to beat him you must run 15 meters within 20 seconds in the northern direction what does your average velocity need to be to win the race .5 meters per second north
.75meters per second north
1.3meters per second north
300 meters per second north

What is the mass of 0.46 mol of mgcl2

20 pts ‼️ an unmanned spacecraft travels to mars. mars has a lower strength of gravity than earth. where in the image is the spacecraft’s weight the greatest?

What amount of heat is exchanged when 106.2 grams of substance y goes from a liquid at 35 degrees celsius to a solid at the same temperature? melting point of substance y = 35 degrees c; δhvaporization = 3.67 j/mol; δhfusion = 3.30 j/mol. mwsubstance y = 28.22 g/mol. −12.4 j −3.51 x 102 j 1.24 x 101 j 351 j