Can you please help me with these physics problems?
Thanks. I am very confused. 1. Blackie the cat on top the refrigerator. When the cat 5.45 kg refrigerator rolls and falls, has a KE of 85.5 J just before your feet touch the ground. What is the height of the refrigerator? 2. measure calories energy we get from food and calories in the diet equals 4,187 J. The average food energy for humans is 2000 calories / day. Suppose has a mass of 55.0 kg and you want to burn all the calories you consume in a day. How high would you do that mountain? Thanks.
1. Blackie has gravitational potential energy, mgh when I was in the fridge. This energy was 100% is converted into kinetic energy, 85.5 J, when he reached the ground. Define equality and solving h. You will need this conversion: 1 J = ^ 1-m 2 kg / s ^ 2 2. Upon reaching the top, which convert energy from food into energy gravitational potential energy, mgh. Calculate the joules in the game and 2,000 calories equal to mgh.
Lionel Grand Trunk Western GP7 and Switcher roll through the grade crossing with heavy freight.
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