Which has the greater specific heat capacity; the filling of a hot piece of pie or the crust?
A) the filling
B) the crust
C) depends on the temperature
Answer: A
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A mixture consists of 70 g of ice and 60 g of liquid water, both at 0°C. (The latent heat of fusion of water is 80 cal/g and the specific heat capacity of water is 1.0 cal/g C°.) The amount of heat that must be added to melt all of the ice is about
A. 4000 cal. B. 5600 cal. C. 32,400 cal. D. 21,600 cal.
Determine the atomic mass of a hypothetical element that occurs on Earth as a mixture of 30.00% 44X (atomic mass of isotope = 44.00 u) and 70.00% 46X (atomic mass of isotope = 46.00 u)
Which of the following pairs of forces are an action-reaction pair according to Newton’s 3rd law?
A. The push of the road on the car and the push of the car on the road B. The weight of an object and the normal force on the object C. The air resistance on a sky diver and the weight of the sky diver D. The frictional force acting on an object and the force used to push an object
The magnitude of the Coriolis force varies according to two factors:
A) the velocity of the moving object and the pressure-gradient force. B) temperature and pressure. C) the velocity of the moving object and the degree of latitude. D) frictional force and pressure-gradient force.