Physics, 18.10.2019 17:20 dragon7363
Ahorse is urged to pull a wagon. the horse refuses to try, citing newton’s third law as a defense: the pull of the horse on the wagon is equal but opposite to the pull of the wagon on the horse. "if i can never exert a greater force on the wagon than it exerts on me, how can i ever start the wagon moving? " asks the horse.
a. how would you respond to the horse? in other words, how could you convince him that newton’s third law doesn’t prevent him from pulling the wagon?
Answers: 2
Physics, 22.06.2019 05:00
Which statements describe the movement of ocean currents around the globe? check all that apply. strong winds force warm water to sink to the ocean floor. the coriolis effect causes warm and cold water to mix. cool dense water sinks to the ocean floor. warm water replaces cool surface water. wind blowing parallel to the shore causes upwelling of cool water.
Answers: 1
Physics, 22.06.2019 12:00
Under the action of a constant force an object accelerates at 7.8 m/s2. what will the acceleration be if (a) the force is halved? (b) the object's mass is halved? (c) the force and the object's mass are both halved? (d) the force is halved and the object's mass is doubled?
Answers: 3
Physics, 22.06.2019 14:20
Antireflective coatings on solar cells are often made by applying a thin film of silicon nitride (sinx), which has an index of refractive of 1.2, on the top of the silicon solar cell, which has a refractive index of about 3.5. however, the sun emits radiation of various wavelengths which the solar cell absorbs, and the antireflective coating can only absolutely minimize the reflection of one of these wavelengths. the coating thickness is chosen to reduce the reflection of green/yellow light (e = 2.2 ev), which is the most intense color in the solar spectrum (shown below). which of the following coatings would minimize reflection of green/yellow light? the answer is 820 nm how? what is the angular width of the central maximum of an electron traveling at 2 x 108 m/s going through a single slit of width 1 mm.
Answers: 1
Ahorse is urged to pull a wagon. the horse refuses to try, citing newton’s third law as a defense:...
Mathematics, 21.04.2020 23:00
Mathematics, 21.04.2020 23:01
English, 21.04.2020 23:01
Biology, 21.04.2020 23:01
Geography, 21.04.2020 23:01