Think about the heat transfer occuring in the campfire explain how the processes used to heat hot dogs over a campfire are similar to those seen in the heat transfer from the Sun to Earth.

Shy diving is the only sport which doesnot require a high level of physical fitness

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I'm having some difficulty seeing the diagram clearly.but the question says there's a net inward force on the object.so we know right away,  from newton's 2nd law of motion, thatthat baby is accelerating.  it doesn't even matter which way thenet force is pointing.  if there's any net force, then either theobject's speed or else its direction must be changing.