The diagram shows the speed-time graph for a toy car travelling in a straight line. 10
mis
3.0-
20-
10
0 1.0 20 30 40 50
Lima
What is the acceleration of the ear during the first two seconds and what is the total distana
t travels?
acceleration
M/5
total
distance/m
w
A
0.60
10
B
0.60
20
С
2.0
10
D
2.0
20

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?

What is the measurement of how fast an object moves relative to a reference point?

Does anyone have the answers to online physics course plato course physics, semester a v3.0