Mary's class recorded the temperature inside the classroom and on the playground every day at recess time for one week. Look at their data in the table. Indoor & Outdoor Temperatures

Day of the Week Temperature Inside Temperature Outside
Monday 66°F 80°F
Tuesday 67°F 75°F
Wednesday 67°F 79°F
Thursday 68°F 82°F
Friday 70°F 88°F

Which day was it the coldest outside?
A.
Monday
B.
Friday
C.
Thursday
D.
Tuesday

Laboratory experiments, observational field studies, and model-building are all examples of different forms of scientific investigations.  in what way do laboratory experiments primarily differ from other forms of scientific investigations?   a.  a laboratory experiment is the only accepted form of investigation within the scientific community.  b.  studies about how things behave in nature or studies involving very large objects are best answered through laboratory experiments.  c.  laboratory experiments involve the identification and control of variables.  d.  data can only be generated through laboratory experiments, not other forms of investigation.

The motor m applies a time-varying force of f (200 t) n, where t is in seconds. box b with mass 200 kg starts from rest, and the coefficients of kinetic and static friction are 0.2 and us 0.3 the acceleration due to gravity is g 9.8 m/s2 b 300 a) find the time ' when the box starts to move. b) calculate the speed of the crate at 3 s c) calculate the power delivered by the motor at t 3 s

Which law represents the thermodynamic statement of the conservation of energy of a system? a. the fourth law b. the first law c. the second law d. the third law