7394

Physics Units Level: Misc Level

Which one of the following combinations of units is equivalent to the ohm?

(a) V/C

(b) A/J

(c) J/S

(d) J* s/C^2

(e) W/A,<------my answer


6337

Physics Units Level: Misc Level

Which of the following in not a unit of work:J,

kg-m/s, kW-h, W-s, N-m


6285

Physics Units Level: Misc Level

If x=a +bt +ct2, where x is in meters and t in seconds,the unit of c is:

a. 1/2 m

b. m

c.m/2 s

d.m/s


6272

Physics Units Level: Misc Level

The unit of work is:

a. kg m2/s2

b. kg m/s

c.kg m2/s

d. kg m/s2


5958

Physics Units Level: Misc Level

Which of the following would correctly convert a Fahrenheit temperature  (F) to a Kelvin (K) value?


5949

Physics Units Level: Misc Level

Which two temperature changes are equivalent?


5889

Physics Units Level: Misc Level

What is the required dimension for the quantity C5 in the expression \theta =S/C5?


5888

Physics Units Level: Misc Level

What is the required dimension for the quantity C4 in the expression s=C3 cos (C4t) ?


5887

Physics Units Level: Misc Level

What is the required dimension for the quantityC3 In the expression S= C3 cos (C4 t)?


5820

Physics Units Level: Misc Level

the density of wood in the cgs system is 0.5 g over cm^3 the corressponding value in SI units are?


5494

Physics Units Level: Misc Level

Helium has the lowest boiling point of all elements. It boils at -269 % C. Express that temperature in kelvins.


5370

Physics Units Level: Misc Level

Dermatologists often remove small precancerous skin lesions by freezing them quickly with liquid nitrogen , which has a temprature of 77K.

(a) What is this tempurature on the Celsius scale?---%C

(b) What is this temperature on the Fahrenheit scale?-----%F


5369

Physics Units Level: Misc Level

A personal computer is designed to operate over the temperature range from 53o to 109o F.

(a) To what do these temperatures correspond on the Celsius scale?----%C to ----% C

(b) To what do these temperatures correspond on the Kelvin scele?----K to ----K


5304

Physics Units Level: Misc Level

1 Watt is the same as:

(a) 1 kg m2 /s2

(b) 1 N m

(c) 1 J s

(d) 1 kg m2 /s 3


5241

Physics Units Level: Misc Level

One student, using unit analysis, says that the equation v=\sqrt{2ax} is dimensionally correct. Another says it isn't With whom do you agree, and why? In the equation, v is velocity, a is acceleration, and x is distance.


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