Answer: If you slide a hockey puck on ice, eventually it will stop, because of friction on the ice. It will also stop if it hits something, like a player's stick or a goalpost.
Explanation:
Answer: Later
Explanation:
In cold weather the air is more dense and that is what causes the cold. It is hard for sound waves to travel through it.
Answer:
1 m = 39.37 in = 39.37/12 ft = 3.28 ft
V = 1145 k/hr = 1145k/hr * 6076 ft/k = 6957020 ft / hr
V = 6957020 ft/hr / 3600 s/hr = 1933 ft/sec
V = 1933 ft/sec / (3.28 ft / m) = 589 m/s
Check:
88 ft/sec = 60 mph
(1145 k/hr * 6076 ft / k) 3600 sec/hr = 1933 ft/sec = 589 m/s
1933 ft/sec / (88 ft/sec) * 60 mph = 1318 mph
Also, 1318 / 1145 = 6076 / 5280 as it should
Answer:
V1 = 15m/s[45o E of N.] = 45o N. of E.
V2 = 18m/s[5o N. of E.].
Vr = 15m/s[45o] + 18m/s[5o].
Vr = 15*Cos45+15*sin45 + 18*Cos5+18*sin5.
Vr = (10.61+10.61i) + (17.93+1.57i) = 28.54 + 12.18i.
Magnitude = sqrt(28.54^2 + 12.18^2) =
Tan A = Y/X = 12.18/28.54 = 0.42887. A =
0 2
posted by Henry
Apr 8, 2017
31 m/s
23 ° north of east
Explanation:
