PROBLEM of 989-980cm 2 . What minimum temp must it have so the
A arcular copper nng at 200 has a hole with an areal
A
a Cross-
It can be slipped onto a steel rod having
sectional area of coord?
b. Suppose the ring and the rol are heated simultanead
What minimum change in temperature of both will
allow the ring to be slipped onto the end of the to
rod
Question
aluminium bar is was meters long at 20°c. The coeft
linear expansion Is 2.5X1096.If the temperature is inox
75 degree celcius a How much will the length​

A3.9 g aluminum foil ball with a charge of +4.1×10−9 c is suspended on a string in a uniform horizontal e⃗ field. the string deviates to the right and makes an angle of 30∘ with the vertical. part a part complete what information about the e⃗ field can you determine for this situation? what information about the field can you determine for this situation? only the magnitude of e⃗ only the direction of e⃗ both the magnitude and the direction of e⃗ none of the above previous answers correct part b determine the magnitude of the electric field. express your answer with the appropriate units. e e = nothing nothing request answer part c determine the direction of the electric field. determine the direction of the electric field. to the right to the left away from you toward you