Zabe

A 6.0 V battery is being used to charge a 5.0x10^-6 F capacitor through a resistor R. The capacitor attains a potential difference of 3.6 V in 1 second after the charging begins. The value of the resistance R is? Been stuck on this for a while and if anyo...

A resistor R is connected to a 12 V battery. The total current increases five times when a 400 Ohm resistor is added in parallel with it. The value of resistance R is? Please help me.

Let v1 = (1, 0, −1) v2 = (0, 2, 2) v3 = (−3, 4, 7) and let W = Span{v1, v2, v3}. 1. Show that v3 is a linear combination c1v1 + c2v2 of v1 and v2 by finding the constants c1 and c2. 2. Show that W = Span{v1, v2}. 3. Show that v1 and v2 are linearly indepe...

Let v1 = (1, 0, −1) v2 = (0, 2, 2) v3 = (−3, 4, 7) and let W = Span{v1, v2, v3}. Show that W = Span{v1, v2}? How would I go by doing this? Thanks in advance.

Let v1 = (1, 0, −1) v2 = (0, 2, 2) v3 = (−3, 4, 7) and let W = Span{v1, v2, v3}. What is the dimension of W? Is it 2? Any explanation would be great too. Thanks.

A pilot sample of 50 measurements of the breaking strength of cotton threads gave S_(pr) = 18 grams. Determine the sample size needed to obtain a 90% Confidence Interval of length 4. I tried using the sample size formula but that did not gave me the right...

Ah I see, thank you very much.

Oh ok, thank you.

Yes

Figured out the answer: n = (1.645(18/2))^2 = 219.188 = 220