Time needed according to the observer on earth
A deep-space probe moves away from the Earth with a speed of 0.74c. An antenna on the probe needs 3.0 s, in probe time; to rotate via 1.0 rev. Determine how much time is needed for 1.0 rev according to the observer on Earth?
Expected delivery within 24 Hours
Signals produced by the astronaut's pulse are radioed to Earth when the vehicle is moving perpendicularly to a line that joins the vehicle with the Earth observer. i) Determine the pulse rate which the Earth observer measure?
Assume that when man is in middle of river, a wind of 6 km/hr from southwest starts. In which direction must he steer to move straight across river?
A super-train of appropriate length of 96 m travels at a speed of 0.94c as it passes via a tunnel encompassing proper length 50 m. As seen by a track-side observer, is the train ever totally in the tunnel?
The object moves along the line in such a way that displacement after t minutes is given by d(t)=2t^3-6t^2+2 meters, for t>=0. Compute the velocity v(t) and accerlation a(t) of the object.
Determine the change in classical momentum of an electron which accelerates from 0.888c to 0.944c, avoiding relativistic effects.
A proton moves having a speed of 0.940c. (i) Compute its rest energy. (ii) Compute its net energy. (iii) Compute its kinetic energy.
A particle having charge q and mass m, moving with the constant speed v, perpendicular to a constant magnetic field B, pursues a circular path.
On third day, his lap time was 71 seconds, and so on. If his lap time keeps reducing in the similar sequence, determine his lap time on sixth day?
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If a child's achievement is below what would be expected given their level of intellectual functioning (as derived from an IQ test such as the WISC-IV)
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