15 The diagram shows a simple mercury barometer alongside a mercury manometer. The manometer contains some trapped gas.
cm
-90
vacuum
-80
-70
trapped
gas
60
SO
76 cm
-40
mercury
-30
-20
10
What is the pressure of the trapped gas?
A 10 cm of mercury
B 50 cm of mercury
C 66 cm of mercury
D 86 cm of mercury

Any color picture tube and electric field exerts a net force of magnitude 1.68x 10^-13 n on an electron the rest mass of an electron is 9.11 x 10^-13 what is the electron acceleration?

Mass (kg) force (n) 5 25 10 50 15 75 20 100 a student was trying to find the relationship between mass and force. he placed four different masses on a table and pulled them using a spring scale. the table shows the different masses used in the experiment and the force required to pull each mass. the student concluded that more force was required to pull heavier objects. what comment would you make regarding his conclusion? a) no clear relation can be observed between mass and force from the data. b) there is a direct proportion between the mass and force listed in the table. c) gravity should have been taken into account while performing the experiment. d) there is an inverse proportion between the mass and force listed in the table.

Why should seat belts not be mandatory quick plz