Physics, 27.05.2021 02:20 animaljamissofab
a solar water bag can be used to heat water for an outside swimming pool. A student wanted to find out if the colour of the solar water bag affects the temperature increase of the water inside the bag. (black bag, pale blue bag, pale green bag, white bag) 1. fill each bag with water 2. place the four bags on the ground outside 3. after three hours, measure the temperature of the water inside each bag 4. repeat steps 1-3 on the next two days. (a) suggest three changes the student should make to this method to get valid results.​
Answers: 2
Physics, 22.06.2019 20:50
In a game of pool, ball a is moving with a velocity v0 of magnitude v0 = 15 ft/s when it strikes balls b and c, which are at rest and aligned as shown. knowing that after the collision the three balls move in the directions indicated and assuming frictionless surfaces and perfectly elastic impact (that is, conservation of energy), determine the magnitudes of the velocities va, vb, and vc.
Answers: 3
Physics, 23.06.2019 06:30
Pl i beg u so much now propane burns in oxygen to produce carbon dioxide and steam. the unbalanced equation for this reaction is: c3h8 + o2 → co2 + h2o use coefficients to balance this equation. a) c3h8 + 3 o2 → 3 co2 + 4 h2o b) c3h8 + o2 → 3 co2 + 4 h2o c) c3h8 + 5 o2 → 3 co2 + 4 h2o d) 2 c3h8 + 5 o2 → 3 co2 + 4 h2o
Answers: 1
Physics, 23.06.2019 13:40
Cereal plants gain chemical potential energy as they grow. which form of energy is converted to create the chemical potential energy?
Answers: 1
a solar water bag can be used to heat water for an outside swimming pool. A student wanted to find o...
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