Aplane is heading south with a velocity of 150 kilometers/hour. it experiences a tallwind with a velocity of 20 kilometers/hour. find the resultant
velocity of the plane.
a 120 kilometers/hour to the south
b. 148 kilometers/hour to the north
c. 170 kilometers/hour to the south
d. 130 kilometers/hour to the north
e. 150 kilometers/hour to the south

Jackson is designing a new heater, and he wants to experiment with different thermally conductive materials. which of these materials would be useful in conducting heat?

In a system, when potential energy decreases, then entropy also decreases. true false

Unpolarized light falls on two polarizer sheets whose transmission axes are at right angles. a third polarizer is placed between the first two so that its axis makes a 52-degree angle with the axis of the first polarizer. a) what fraction of the incident light intensity is transmitted through the first polaroid? b) what fraction of the incident light intensity is transmitted through the second polaroid? c) what is the angle of polarization of the light that enters the third polaroid? d) what fraction of the incident light intensity is transmitted through the third polaroid. e) what happens if the middle polaroid is removed?