An astronaut traveling at a speed of 0.75c requires 25 years, as measured on Earth, to make a round trip to a nearby star. How many years did he age during the trip?

Q: 12. Calculate the center of mass of a 4 m long aluminum bar with cross-sectional area of 4 cm x 4 cm…

A: Given Data:  It is given that the length of the uniform bar is, L=4 m.  Axis of rotation is located…

Q: B A coin sits on a rotating turntable as shown in the figure. At the time shown in the figure, which…

A: We need to say what the direction of friction will be on the coin on turntable.

Q: If a 1.06 kg mass on a spring has a period of oscillation of 4.0 seconds, find the spring constant.…

A: Write the given values with the suitable variables. m=1.06 kgT=4 s Here, m and T are the mass and…

Q: If a 0.7 Tesla magnet moves into a 140 turn coil with an cross sectional area of 0.08 in 1.4…

A:

Q: Two objects having different masses are subjected to Identical forces act for the same length of…

A: It is given that two objects having same masses are subjected to identical forces for same length of…

Q: If a spring has a frequency of 21 Hz and an amplitude of 1.9 m, then find the MAXIMUM velocity. Give…

A:

Q: 3) A proton enters a magnetic field of 10T and an electric field of 2000 N/C in such a way that it…

A: Moving particle is proton  Charge on proton (e) = 1.6×10-19 C  Magnetic field (B)= 10 Tesla…

Q: In the following diagram, the current passing through 20 Ohm is 1.5 A. 19. What is the current…

A:

Q: -ncave lens has a focal length of -3 cm. y from the lens. Find the magnification tive answer and an…

A: Focal length of  concave lens                                                   f  = - 3 cm height…

Q: Four equal +2.00-µC point charges are placed at the corners of a square 4.00 m on each side. (k =…

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Q: Moving charge generates a magnetic field. If the moving charge is in an already existing field, the…

A: we know that,            When a charged particle moves relative to a magnetic field, it will…

Q: Find the number of turns a solenoid coil with length of 0.06 m should have in order to produce a…

A:

Q: N vs. TIME graph below, click on the spot where the VELOCITY IS ZERO (the arrow will be placed where…

A: Introduction: When the body does not gets displaced with time, the velocity is said to be zero. So,…

Q: If a candle is 3 meters from a thin lens with a focal length of 2 m, find the image distance A) 2 m…

A:

Q: An infinitely long wire is uniformly charged. The voltage difference from r 2 m and r= 4 m is 30…

A: Given:    An infinitely long wire --- uniformly charged.    Voltage difference (ΔV) (between r1 = 4m…

Q: Practice 1: In the picture below, the red graph represents the graph of a position function f(x)…

A: And  So

Q: A solenoid with radius a produces a magnetic field with strength B pointing into the page. A square…

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Q: 3. If V = 12 V in the circuit below R = 100 N R2= 200 N %3| R3 = 100 N R5= 300 N R4 = 150 N R, = 100…

A: Solution: Given that V = 12 V and the values of other resistors

Q: 5. An object moving in the x-y plane has a position vector given by: 7 = (2t³ - 5t)i + (6 - t¹)ĵ (in…

A: Given  r→=(2t3-5t)i^+(6-t4)j^Required average velocity

Q: The block in the drawing has dimensions LO×2L0×3L0.where Lo =0.3 m. The block has a thermal…

A: Give Thermal conductivity = 100j/s-mC  Delta T = 21- 12 ° C = 9 ° c

Q: Match the following: measured in meters Time for one cycle measured in Hertz (or cycles per second)…

A:

Q: With what velocity vo should a projectile be started at the center of the Earth to reach the surface…

A: As per the guidelines we can solve only 1 question. Solution of 1st question is given Law of…

Q: = 201². The fan blade in a jet engine rotates from rest with the angular acceleration a = 1 9. find…

A: GIVEN         Angular acceleration = α = 20t2

Q: Light bulb 1 operates with a filament temperature of 2500 K, whereas light bulb 2 has a filament…

A: T1=2500k. T2=1900k.