Physics, 26.07.2019 22:20 badpotterchris
An object weighing 32 lb is released from rest 50 ft above the surface of a calm before the object reaches the surface of the lake, the air resistance (in pounds) given by 2v, where v is the velocity (in feet per second). after the object passes surface, the water resistance (in pounds) is given by 6v. further, the object is the up by a buoyancy' force of 8 lb. find the velocity of the object 2 seconds after i beneath the surface of the lake.
Answers: 1
Physics, 21.06.2019 18:30
An experiment is designed to test the relationship between the initial height of a basketball before it is dropped to the height of its rebound bounce. the height of the rebound bounce is measured using a scale positioned behind the ball. in the above experiment, which condition would not be controlled? a). the starting height of the ballb). the surface the ball bounces on c). the type of ball d). the method to measure the rebound height of the ball
Answers: 1
Physics, 22.06.2019 03:40
Aprojectile is launched from ground level with an initial velocity of v 0 feet per second. neglecting air resistance, its height in feet t seconds after launch is given by s equals negative 16 t squared plus v 0 t. find the time(s) that the projectile will (a) reach a height of 192 ft and (b) return to the ground when v 0equals112 feet per second. (a) find the time(s) that the projectile will reach a height of 192 ft when v 0equals112 feet per second. select the correct choice below and, if necessary, fill in the answer box to complete your choice.
Answers: 1
Physics, 22.06.2019 19:30
Which of the following compounds would be primarily ionic? methane, ch4, ammonia nh3, calcium chloride, cacl2, or carbon dioxide, co2
Answers: 1
Physics, 23.06.2019 08:00
All phase changes are .an example of a phase change is an ice cube melting
Answers: 2
An object weighing 32 lb is released from rest 50 ft above the surface of a calm before the object r...
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