physics
A car travels due east with a speed of 35.0 km/h. Raindrops are falling at a constant speed vertically with respect to the Earth. The traces of the rain on the side windows of the car make an angle of 70.0° with the vertical. Find the velocity of the rain with respect to t...
physics
A science student is riding on a flatcar of a train traveling along a straight horizontal track at a constant speed of 12.0 m/s. The student throws a ball into the air along a path that he judges to make an initial angle of 60.0° with the horizontal and to be in line with ...
physics
A Coast Guard cutter detects an unidentified ship at a distance of 16.7 km in the direction 13.8° east of north. The ship is traveling at 24.9 km/h on a course at 39.2° east of north. The Coast Guard wishes to send a speedboat to intercept the vessel and investigate it...
physics
In zero-gravity astronaut training and equipment testing, NASA flies a KC135A aircraft along a parabolic flight path. As shown in the figure, the aircraft climbs from 24,000 ft to 32000 ft, where it enters the zero-g parabola with a velocity of 158 m/s at 45.0° nose high a...
physics
One strategy in a snowball fight is to throw a snowball at a high angle over level ground. While your opponent is watching the first one, a second snowball is thrown at a low angle timed to arrive before or at the same time as the first one. Assume both snowballs are thrown wi...
physics
An astronaut on a strange planet finds that she can jump a maximum horizontal distance of 17.0 m if her initial speed is 3.80 m/s. What is the free-fall acceleration on the planet?
phy
The small archerfish (length 20 to 25 cm) lives in brackish waters of Southeast Asia from India to the Philippines. This aptly named creature captures its prey by shooting a stream of water drops at an insect, either flying or at rest. The bug falls into the water and the fish...
Science
If a block has a mass of 16.2 grams and a volume of 14 cc. What is the density if calculated?
math
Laura is driving to Seattle. Suppose that the remaining distance to drive (in miles) is a linear function of her driving time (in minutes). When graphed, the function gives a line with a slope of -0.75. Laura has 51 miles remaining after 33 minutes of driving. How many miles w...
trig
wha tis the exact value of sin 9pi/4
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