97.38: A vehicle traveling at a constant 0.60 c passes a cloc90 gpcwbxs++ 1ba5gf xk at a street intersection. For a one-second interval on thc+ 5apxx910wfsb +gb gat clock, what interval will the driver of the vehicle measure?

  07.48: How fast must an observer move so that a stationary object appears 0 rxq)q siqg-ud 3lo86:i0ia/j:rh4cg qf)k k to be one-half of its proper lenr/i:ag: fj)3du)c i ik6qghk8 ro q0qsx-0lq4gth?

  11.50: A person sets a one-meter lonixq,(4yxg.zi g stick so that it makes a $30^{\circ}$ angle with the x-axis. An observer in a space ship moving along the x-axis measures the angle of the stick to be $60^{\circ}$ with the 6-axis. With what speed is the space ship moving in terms of the speed of light c?

  14.50: Two clocks, A and B, are synchronized on Earth. Clock A is yn;,wg m9m -9yzp l2nrplaced onto a space ship that leaves Earth in a straight line with a speem 2,wlnmry;nzg9yp9 -d of $2.40\times\: 10^8$ m/s. On Earth, a scientist with clock B has her telescope fixed directly on clock A. If each clock started at t = 0 s, what time does the scientist observe on clock A when clock B reads t = 90 s ? Assume the time of acceleration for the ship leaving the Earth was negligible.

  16.49: John is at rest on a platform that he measures to be 500 m l .93 nl a,oynidzbx9d2qrnj+/ong on the x-axis. Hez9 ajrq i ldnbx9n.o 3/+2d,ny then sees a spaceship moving along the x-axis with a speed of $1.80\times\: 10^8\:m/s$ as it crosses the length of the platform. Sitting in her chair, the spaceship's pilot measures the time it takes her to cross the platform. What type of time interval does she measure and what value does she obtain?