cr

This page lists questions and answers that were posted by visitors named cr.

Questions

The following questions were asked by visitors named cr.

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A 10.0 kg box is pulled along a horizontal surface by a 40N force which is applied at a 30.0 degree angle. If uk = 0.3, calculate the acceleration of the box.

An electron is accelerated by a 6.4 kV potential difference. The charge on an electron is 1.60218 × 10^−19 C and its mass is 9.10939 × 10^−31 kg. How strong a magnetic field must be experienced by the electron if its path is a circle of radius 5.1 cm? Ans...

A proton is moving in a circular orbit of radius 11.8 cm in a uniform magnetic field of magnitude 0.232 T directed perpendicular to the velocity of the proton. Find the orbital speed of the proton. Answer in units of m/s. I came up with .118/2.83x10^-7 an...

A heavy conductor (mass m, length `, resistance R) is suspended by two springs each with spring constant k, and connected to a battery with electric potential V as shown in the figure. A magnetic field ~B is now imposed. The acceleration of gravity is 9.8...

A thin converging lens of focal length 9.82 cm forms an image of an object placed 18.5 cm from the lens. Find the image distance. Answer in units of cm. What is the magnification for an object distance of 18.5 cm? Find the location of the image for an obj...

the pizza was cut into 10 slices two people ate 4/5 of it they did not eat the same amount how many slices might each have eaten?

Why would an emperor or a wealthy citizen hold gladiatorial games? What was the Roman idea of citizenship? How did citizenship differ for women and men?

Answers

The following answers were posted by visitors named cr.

What am I doing wrong? Sqrt (9.10939x10^-31)x(2)x(6400)/(1.60218x10^-19)sqrd =673966.5256 ans * (1/.051) = 13215029.91 Wrong answer. I have entered four wrong answers. I can not enter another wrong answer and pass this homework. pls help!

(2pie(1.67x10^-27)/ (1.60x10^-19)x .232= 2.83x10^-7 .118/2.83x10^-7 wrong answer. I have entered three wrong answers and can not pass this if I can not get the right answer. Please help!

---------- + - ------- | V | | | Spring K Spring K | | | | <------------l------------> Heavy Conductor R | mg Hope this helps! Please help.

Calculating your v gave me 2.62285030e-48 so I then divide .118/ans and get 4.4989e46 would this be right?

What answer do you get when you calculate? Am I doing something wrong in my calculations?

I selected #1 AND IT WAS INCORRECT. I guess I just don't understand...

According to my homework this is incorrect too. What could be wrong.

Thank you so much! I am struggling through this class. The professor is so intellegent that he doesn't bring it down to the basics for understanding.

The first answer is 20.93, then when I take that and divide it by 18.5 equals 1.13 but that is incorrect. What am I doing wrong? Then using the same formula (1/9.82)- (1/4.06) comes out -6.92 which doesn't seem right either. please help.

I was able to get distance but both my magnifications were incorrect. pls help

Got it ~ thanks!

ms sue is a fake when someone asks a question she re asks it and then answers it so dont fall for phonies like her

shut up ms sue you faker

1 2/7 degrees farenheit

lol it spells bad