Q2.1 A 4.5 g lead BB moving at 46 m/s penetrates a wood block and comes to rest inside the block. If the BB lead absorbs half of the kinetic energy, what is the change in the temperature of the BB? (Use specific heat of lead -128 K/kg. C)
Q2.1 A 4.5 g lead BB moving at 46 m/s penetrates a wood block and comes to rest inside the block. If the BB lead absorbs half of the kinetic energy, what is the change in the temperature of the BB? (Use specific heat of lead -128 K/kg. C)
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Transcribed Image Text:Q2: Heat And Temperature
Q2.1 A 4.5 g lead BB moving at 46 m/s penetrates a wood block and comes to rest
inside the block. If the BB lead absorbs half of the kinetic energy, what is the change
in the temperature of the BB? (Use specific heat of lead -128 K/kg. C)
Q2.2 A copper piece has a mass of 50,0 g and is initially at a temperature of 20.0 °C. If
it is supplied with 300 J of heat, what will be its final temperature? [specific heat of
copper c=386 J/kg. "CJ
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