PHY101 Final Term Subjective by Faheem

PHY101- Physics · Composed By Faheem Saqib · Final term Subjective

Two people are carrying a uniform wooden board that is 3.00 m long and

weighs 160 N. If one person applies an upward force equal to 60 N at one end,

at what point does the other person lift? Begin with a free-body diagram of the

board.

Given:

L = 3.00 m F1 = 60 N

W = 160 N F2 = ? and x2 = ?

60N + F2 - 160 N = 0 F2 = 100 N

(60)(3) - 60x2 + (160 * 3)/2 - 160x2 = 0

180-60x2 + 240-160x2 = 0

420-220x2 = 0

x2 = 1.9m

If a charged particle moves in a straight line through some region of space, can

you say that the magnetic field in that region is zero?

You want to explore the shape of a cel1ain molecule by scattering electrons of

momentum p from a gas of the molecules and studying the deflection of the

electrons. You will be able to see finer details in the molecules by (a) increasing p; (b) decreasing p: (c) not worrying what p is.

A vessel is filled with gas at some equilibrium pressure and temperature. Can all gas molecules in the vessel have the same speed?

What are the properties of wave function?

A bike accelerates uniformly from rest to a speed of 7.10 m/s over a distance of

35. 4 m. Determine the acceleration of the bike.

2as = vf2 – vi2

2a(35.4) = (7.10)2 – (0)2

2a(35.4) = 50.41

A = .71 m/s2