Recent content by FuzzyDunlop

ok. what if there is someone on the spaceship. will they see the same thing as the first observer or will it not appear like its accelerating?

Homework Statement A spaceship is travels in a straight line (to the left) past a space station that is at rest. the spaceship is speeding up relative to the space station. inside the ship, there is a block attached to the end of a light spring. the spring is extended by a fixed amount, as...

Homework Statement Two wires carry current I1 = 53 A and I2 = 37 A in the opposite directions parallel to the x-axis at y1 = 3 cm and y2 = 13 cm. Where on the y-axis (in cm) is the magnetic field zero? I1= 53 A I2=37A Homework Equations B(r)=Iu/[2(pi)r] The Attempt at a Solution...

oh my god I am stupid. thanks

Homework Statement the question is A conducting sphere has a diameter of 10 centimeters. If you measure its voltage to be 3700 V, what is the charge in μC you have put on the sphere? Homework Equations V=3700, D=0.1 m, V=kq/R The Attempt at a Solution 3700= (8.987 * 10^9 * q)/.1...

Ohh nevermind I got it. I was right, dumb mistake.

Homework Statement A professor has to haul a cart down a ramp. The ramp has an angle of about 10 degrees and is about 5 meters long. His initial speed at the top of the ramp is 6 m/s, and the cart has a mass of about 95 kg. How hard does he have to pull on the cart so that at the bottom of the...