A square frame with 2.0 m on each side moves horizontally at a speed of 0.95c parallel to one of its sides. What is the size of the diagonal as seen by the observer watching the frame moving?
A. 2.6 m
B. 2.1 m
C. 0.62 m
D. 0.88 m
E. 2.80 m
A square frame with 2.0 m on each side moves horizontally at a speed of 0.95c...
A box is cubical with sides of proper lengths L1 = L2 = L3 = 1.5
m, as shown in the figure below, when viewed in its own rest frame.
This block moves parallel to one of its edges with a speed of 0.95c
past an observer.
(a) What shape does it appear to have to this observer?
(b) What is the length of each side as measured by this
observer? (Assume that the side that the block is moving...
A circuit consists of two square conducting loops (see the figure). Each side of the squares has a length of 0.10m and a resistance of 1 Ω. The circuit is oriented with the plane of its loops perpendicular to a uniform 3.0 T magnetic field, which has a boundary that is parallel to ed. We pull the circuit out of the magnetic field with a constant speed, v 2.0 m/s, parallel to ae. Calculate the total work required to pull...
A 2.0 kg mass on a smooth horizontal surface moves with 7.0 m/s speed toward a spring of force constant k = 2000 N/m. What is the speed of the mass at the instant it compresses the spring by 0.15 m? k www.ro 20 kg Select one: OA. 4.9 m/s B. 6.4 m/s O C. 14 m/s CD 5.1 m/s E. 3.7 m/s
A 200 m long rocketship moves parallel to its length with speed v = 0.9c relative to you. (a) Compute the length of the rocketship measured by you. (b) How long does it take for the rocketship to pass you? (c) In the frame-of-reference of the rocketship, how long does it take for you to travel from one end of the rocketship to the other as you pass by the rocketship? (d) One of the two time intervals calculated in...
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10.51 A uniform, 4.5-kg, square, solid wooden gate 1.5 m on each side hangs vertically from a frictionless pivot at the center of its upper edge. A 1.1-kg raven flying horizontally at 5.0 m/s flies into this door at its center and bounces back at 2.0 m/s in the oppo- site direction. (a) What is the angular speed of the gate just after it is struck by the unfortunate raven? (b)During the collision, why is the...
B. [12 points total] Charge is spread uniformly across an i Each square meter of this sheet carries a charge of 24 uC. The sheet moves in the +r direction with a infinitely-large thin sheet lying in the ry plane. constant speed of 8.0 m/s as shown. a Moving sheet of charge +24 uC/m 8.0 m/s y Amperian loop the Sin le the chase S + te t (a) [2 points] What is the direction of the magnetic field just...
2. A 2.0-m wire carries a current of 15 A directed along the positive x axis in a region where the magnetic field is uniform and given by Bx = 30 mT and By =-40 mT. Show that the resulting magnetic force on the wire is 1.5 N pointing into the paper. [Please show a diagram for the direction!] 4. Show that a current of 75 A must be maintained in a square loop (50 cm on a side) to create...
A mass of 165 kg is supported by two cantilever beams, one on each side of the mass. Theproperties of one beam are: E = 210 x 109 N/m2, I=1.6 x 10-5 m4, A = 2.1 x 10-4 m2 and L = 0.65 m.The properties of the other beam are: E = 180 x 109 N/m2, I=2.0 x 10-4 m4, A = 2.1 x 10-4 m2 and L =0.35 m. What is the natural frequency of the system?
Quiz 1 February 13, 2019 Name Equations: F = k 9192 k=9 X 10°N m²/C2 = 1/(4teo), 80 = 8.85 X 10-12 C/N m2 e = 1.6 X 10-1°C me =9.1 X 10-31 kg m = 1.9 X 10-27 kg PE = k9;92 APE = q AV KE = zmu? E= -6 F N kg m/s2 E N/C | | PE J kg m/s | V V. JC and a negatively 1. (2) Draw the electric field lines surrounding a...
Q.9. Arubberised flat belt is moving at 14 m/s with the tension in the tight side of 10.0 kN and the slack side of 5.0 kN. The belt is 350 mm wide and 10 mm thick, and it is constructed of 5 plies of 32 oz canvas ducking. What is tension ratio in the belt? A. 2.0 В. 2.1 С. 1.9 D. 2.3 E. none of above (4 Marks) Q.10. A V-belt drive system is to be designed to transmit...