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Which of the following statements are IMPOSSIBLE? Choose all that apply.
1. The rocket's speed was measured to be1.07c.
2. The rocket's rest length is 126 m. An observer flying by gauged the rocket to be 777 m long.
3. A rocket flying with the Sunat 0.85c gauged the speed of the photons (particles of light) emitted with the Sun to be 0.52c.
4. An inertial reference frame had an acceleration of 9.8 m/s2.
5. The proper time interval among two events was measured to be 202 s. The time interval among the same two events (as gauged by an observer not in the proper frame) was 156 s.
An astronaut travels to a distant star with a speed of 0.52 relative to Earth. From the astronaut's point of view, the star is 7.4 from Earth. On the return trip, the astronaut travels with a speed of 0.87 relative to Earth.
Waves on a 10 meter rope travel at 19 m/s. You shake the rope back and forth until you get a standing wave with a single antinode. What is the wavelength and frequency of each standing wave
q1. two long parallel wires x and y separated by distance of 5 cm in air carry currents of 20 a and 70 a
On a part-time job, you are asked to bring a cylindrical iron rod of density 7800kg/m3 , length 79.9cm, Calculate the weight of the rod, w
The coefficient of static frictionbetween hard rubber and normal street pavement is about 0.8. On how steep a hill (maximun angle) can you leave a carparked
A loudspeaker of mass 20.0 kg is suspended a distance of h = 2.20m below the ceiling by two cables that make equal angles with the ceiling. What is the tension T in each of the cables
A disk, initially rotating at 106 rad/s, is slowed down with a constant angular acceleration of magnitude 2.24 rad/s2. How much time does the disk take to stop
A plane lands with a speed of 51.0m/s. Each wheel of the plane has a radius of 1.25 meter and a moment of inertia of 110kg•m2. Find the coefficient of kinetic friction between runway and wheels
suppose a 29.9-kg child sits 1.27 m to the left of center on the same seesaw as the problem you just solved in the
An object is initially placed on the optical axis 21.2 cm to the left of a convex lens that has a focal length of 12.1 cm. what is the new image distance
Two 10 cm long thin glass rods uniformly charged to + 10;{rm nC} are placed side by side, 4cm apart. What are the electric field strengths E_1, E_2, and E_3 at distances 1.0 cm, 2cm, and 3cm to the right of the rod on the left, along line connecti..
seven charged particles are fixed in place to form a square with an edge length of 3.8 cm. How much work must we do to bring a particle of charge
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