0.645 kg of molten silver at its melting point (962C) is added to 0.800 kg of water at 20.0 C. What is their final equilibrium temperature? (Don't forget, silver LOSES heat when it solidifies.)
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When a 5.0kg cart undergoes a 2.2m/s increase in speed, what is the impulse of the cart

Mass (kg) force (n) 5 25 10 50 15 75 20 100 a student was trying to find the relationship between mass and force. he placed four different masses on a table and pulled them using a spring scale. the table shows the different masses used in the experiment and the force required to pull each mass. the student concluded that more force was required to pull heavier objects. what comment would you make regarding his conclusion? a) no clear relation can be observed between mass and force from the data. b) there is a direct proportion between the mass and force listed in the table. c) gravity should have been taken into account while performing the experiment. d) there is an inverse proportion between the mass and force listed in the table.

Determine the maximum r-value of the polar equation r =3+3 cos 0