You are on a train traveling east at speed of 17.0 m/s with respect to the ground. 1) If you walk east toward the front of the train, with a speed of 1.1 m/s with respect to the train, what is your velocity with respect to the ground? 2) If you walk west toward the back of the...
A cannonball is shot (from ground level) with an initial horizontal velocity of 36.0 m/s and an initial vertical velocity of 21.0 m/s. 1) What is the initial speed of the cannonball? 2) What is the initial angle θ of the cannonball with respect to the ground? 3) What is t...
A red ball is thrown down with an initial speed of 1.2 m/s from a height of 25.0 meters above the ground. Then, 0.6 seconds after the red ball is thrown, a blue ball is thrown upward with an initial speed of 22.9 m/s, from a height of 0.8 meters above the ground. The force of ...
A blue ball is thrown upward with an initial speed of 19.8 m/s, from a height of 0.5 meters above the ground. 2.4 seconds after the blue ball is thrown, a red ball is thrown down with an initial speed of 7.9 m/s from a height of 22.5 meters above the ground. The force of grav...
in a boy's school,5/8 of the boys play football and 4/7 play rugby.if every boy play atleast one of the two games,ind the fraction of the boys who play both ?
Assume an investor with 5 years investment horizon is considering purchasing a 7 years 6% coupon selling at par. The investor expects to reinvest the coupon at 5% and that the bond will be selling to offer a yield to maturity of 4% in five years. What is the expect total retur...
A train sounding its horn is approaching an observer. The pitch of the horn's sound relative to its normal pitch is???
At 3 P.M, ship A is 150 km west of ship B. Ship A is sailing east at 35 km/h and ship B is sailing north at 25 km/h. How fast is the distance between the ships changing at 7 P.M.? (Round your answer to one decimal place.)