NEED HELP ASAP i. Which runner, if either, is in the lead when t = 6.0 seconds? Justify your answer qualitatively without any equations.

ii. Justify your answer about which runner, if either, is in the lead when t=6.0 seconds using appropriate equations.

The graph is used to help answer the two questions above

If 21.2 kcals of energy is released by this reaction, how many kj does the reaction release? (1 cal 4.184 j)

Asatellite component is in the shape of a cube with 10cm edges, has an evenly distributed mass of 2 kg and one bolt hole at each of four corners. if the maximum predicted random vibration environment is 10 grms, what bolt size would be a good choice for restraint? what other factors might drive bolt size besides force/stress?

The electric potential v is constant everywhere within a certain region of space. which statement below is true? the choices are: the electric field is also constant (but not zero) within the region. a charged particle placed within the region will experience an electric force. the electric field is zero everywhere within the region. the electric field varies from place to place within the region.