A 88-kg sample of liquid water is cooled from 0 degrees Celsius to -43 degrees Celsius. It freezes in the process. How much heat is liberated? For water Lf=334 kJ/kg and Lv=2257 kJ/kg. The specific heat capacity of ice is 2.05 kJ/kg x degrees Celsius.

Which planet do you think would be easiest for humans to colonize some day?

Asmall grinding wheel has a moment of inertia of 4.0×10−5 kg⋅m2 . what net torque must be applied to the wheel for its angular acceleration to be 150 rad/s2 ?

In which situation is the acceleration of a car negative? question 5 options: a)the velocity of a car was 75 km/hr over 4 hours. b)the velocity of a car reduced from 50 km/hr over one minute. c)the velocity of a car increased from 40 km. h to 75 km/h over 15 minutes. d)the velocity of a car was 45 km/hr at 2: 00pm and at 4: 00pm its velocity was 85 km/ht.