In a student experiment, a constant-volume gas thermometer is calibrated in dry ice (-78.5°c) and in boiling pentane (36.1°c). the separate pressures are 0.890 atm and 1.423 atm. hint: use the linear relationship p = a + bt, where a and b are constants.
a. what value of absolute zero does the calibration yield?
°c
b. what pressure would be found at the freezing point of water?
atm
c. what pressure would be found at the boiling point of water?
atm

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

Ameter stick is pivoted at the 0.50-m line. a 3.0-kg object is hung from the 0.15-m line. where should a 5.0-kg object be hung to achieve equilibrium (the meter stick oriented horizontal and motionless)?

Anonzero net force acts on a particle and does work. which one of the following statements is true? the kinetic energy of the particle changes, but the speed of the particle does not change. the kinetic energy of the particle does not change, but the speed of the particle does change. the kinetic energy of the particle changes, but the velocity of the particle does not change. the kinetic energy and the speed of the particle change, but the velocity of the particle does not change. the kinetic energy, speed, and velocity of the particle change.