What happens when a candle burns?
a) oxygen is used up
b) nitrogen is used up
c) hydroge...
Physics, 10.06.2021 17:30 jasminen3835232
What happens when a candle burns?
a) oxygen is used up
b) nitrogen is used up
c) hydrogen is produced
d) carbon dioxide is consumed
Answers: 2
Physics, 23.06.2019 00:00
Boiling water is an example of physical change. true or false
Answers: 2
Physics, 23.06.2019 04:31
In which item is energy stored in the form of gravitational potential energy? a. a slice of bread b. a compressed spring c. an apple on a tree d. a stretched bow string
Answers: 1
Physics, 23.06.2019 12:50
Aspring with an unstrained length of 0.071 m and a spring constant of 2.6 n/m hangs vertically downward from the ceiling. a uniform electric field directed vertically upward fills the region containing the spring. a sphere with a mass of 5.29 10-3 kg and a net charge of +7.2 µc is attached to the lower end of the spring. the spring is released slowly, until it reaches equilibrium. the equilibrium length of the spring is 0.058 m. what is the magnitude of the external electric field?
Answers: 1
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