At the beginning of a bobsled race, teammates push their bobsled along the track before jumping into it. Before the teammates jump in, they push the bobsled (m = 100 kg) from rest to a speed of 6 m/s. How much kinetic energy does the bobsled gain?
How much work did the bobsled team do? Explain how you found the answer.
If the teammates pushed the bobsled a distance of 8 m, how much force did they apply?

Air initially at 0.75 bar, 1000 k, and occupying a volume of 0.12 m^3 undergoes two processes. process 1-2: the air is compressed isothermally until the volume is halved. process 2-3: the air undergoes a constant pressure process until the volume is halved again. assume ideal gas behavior. a) determine the mass of the air, in kg. b) the work and the heat transfer for each of the two processes, in kj. (100 kj = 1 bar . m^3)

Researchers determine that the biodiversity in a woodland region is declining. they identify two major threats to the region's biodiversity, a method to address each threat, and the expected outcome of each method. this information is shown in the table. a) reforestation would not benefit many species because most forest species live on the ground. b) reforestation would take the longest time to be effective because trees take several years to grow. c) biological augmentation would benefit only a few species because is is typically not very effective. d) biological augmentation would take less time to ve effective because it targets the majority of prey species.

This is for my 8th grade science class, i really don’t understand. can someone me? , lol.