The thermal energy of water in a themos increases by 10,557 J when the water is heated from 30 °C to 40°C. If the specific heat of water is 4.184 J/kg °C, what is the mass of the water? Round your answer to two decimal places.
m=
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You are your friend move a new refrigerator into his kitchen. you apply a horizontal force of 252 n in the negative x direction to try and move the 56 kg refrigerator. the coefficient of static friction is 0.61. (a) how much static frictional force does the floor exert on the refrigerator? give both magnitude (in n) and direction. magnitude n direction (b) what maximum force (in n) do you need to apply before the refrigerator starts to move?