Viewed by Carl: - Bob moves towards right at v = +0.98 c - Anna moves...
Alice G LOO Bob Let's revisit the simultaneity problem from worksheet 11. To make things concrete, we'll include specific numbers. Bob is standing on the ground watching Alice go by in a high-speed train. As seen in Bob's reference frame, Alice is traveling to the right at speed v = +0.80c. As measured in Bob's frame, Alice's rail car is 12 m long. Alice is sitting in the exact center of the train car. At the instant that the Alice...
The pendulum shown to the left consists of a bob of mass of 0.44 kg, attached to a string of length L = 1.2 meters. It is moving to the right with a speed of 4.62 m/sec at point A. What we'd like to know is what the the velocity of the bob when it reaches point B which is 36 degrees from vertical. There are two different ways to look at this problem, each of which will give us...
C moves to the right in a The shaded region in the diagram below is a region of uniform electric field that is parallel to the horizontal direction (x-axis). A charge Q = -4.9 straight line through this region, passing through points A and B (as shown by the green arrow). X XA (a) If the charge accelerates as it moves from A to B, what is the direction of the electric field in this region? to the left O...
A blob of putty of mass m moves with a speed 2v to the right, while a second blob of putty of the same mass m moves with a speed v to the left, as shown. Their paths are separated by a distance b. They both reach a thin rigid rod of length b and mass 2m at the same instant t-0, and stick to opposite ends of the rod. (Use standard definitions of a right- handed coordinate system with...
help please, only the right answer QUESTION 1 Bob places a negative test particle next to a large, charged plate. The test particle moves away from the plate after Bob releases it. What is the net charge on the plate? O a. Positive b. Either positive or negative, but it is impossible to tell which c. Negative d. Neutral QUESTION 8 An electron travels to the right with speed v. A magnetic field points toward the top of the page....
For each of the actions depicted below, a magnet and/or metal loop moves with velocity v? (v? is constant and has the same magnitude in all parts). Determine whether a current is induced in the metal loop. If so, indicate the direction of the current in the loop, either clockwise or counterclockwise when seen from the right of the loop. The axis of the magnet is lined up with the center of the loop. Part A For the action depicted...
A particle with positive charge q = 4.01 10-18 C moves with a velocity v = (5î + 5ĵ − ) m/s through a region where both a uniform magnetic field and a uniform electric field exist. (a) Calculate the total force on the moving particle, taking B = (5î + 2ĵ + ) T and E = (3î − ĵ − 2) V/m. (Give your answers in N for each component.) Fx= NFy= NFz= N (b) What angle does...
1. A proton travels directly (head on) towards a stationary lead nucleus, with an initial speed v0, when the proton is a distance x0 from the nucleus. It undergoes an acceleration of magnitude a = kx−2 directed away from the nucleus, where x is the distance from the proton to the nucleus and k is a positive constant. (Assume the lead nucleus remains stationary throughout.) (a) Give an expression for how the velocity of the proton depends on x. (It...
ONLY USE THE FORMULAS GIVEN ON PAPER, NO OTHER FORMULAS ALLOWED. DOUBLE CHECK ANSWERS FOR ANY MISTAKES! 2. A 20 kg block is moving with a velocity v to the right as it passes point A on a frictionless surface.It slides up to point B, then slides back past point A. To the left of point C, the surface has a coefficient of kinetic friction of 1/5. It finally comes to rest at point D. (a) The height of point...
A linear motor has the following specifications: B = 0.8T, l = 2m, R = 0.3 ohms, Vb = 300V. When the bar moves to the right, there is a drag force KdV, where Kd = 6(N/m/sec), and v is in (m/sec)! Determine (a) the “starting” current (A), and (b) force (N). What is the “steady state” (c) velocity (m/sec), and (d) current (A), when the applied voltage is 300V. (photo of problem attached) Please show work :) 1nFo paper...