PHY101 Final Term Solved Subjective by Faheem

PHY101 FINAL TERM SOLVED SUBJECTIVEBY FAHEEM

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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.

Y = F1 + F2 - W

Given:

L = 3.00 m F1 = 60 N

W = 160 N F2 = ? and x2 = ?

60N + F2 - 160 N = 0

F2 = 100 N

My pivot point is at F2. Sum of torques = 0

(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

A flat loop of wire consisting of a single turn of cross-sectional area 8.00 cm2 is perpendicular to a magnetic field that increases uniformly in magnitude from 0.500 T to 2.50 T in 1.00 s. What is the resulting induced current if the loop has a resistance of 2.00 W?

I=E/R=1.23 mA