Physics, 26.03.2020 08:25, DivineMemes420
1.
Which of the following is a true statement concerning the electrostatic force and gravitational force acting on an electron and a proton in an atom?
Fg > Fel
Fel > Fg
Fg = Fel
We would need to know which atom
2.
In a certain atom a proton and electron are separated by a distance of 4.7 x 10-13 m. Calculate the electrostatic force of attraction between this proton and electron.
4.90 x 10-16 N
5.45 x 10-26 N
1.04 x 10-3 N
6.5 x 1015 N
3.
In a certain atom a proton and electron are separated by a distance of 4.7 x 10-13 m. Calculate the gravitational force of attraction between this proton and electron.
4.18 x 10-73 N
8.42 x 10-40 N
2.16 x 10-55 N
4.59 x 10-43 N
Answers: 3
Physics, 22.06.2019 15:00, sswd
Steelhead trout migrate up stream to spawn. occasionally they need to leap up small waterfalls to continue their journey. fortunately, steelhead are remarkable jumpers, capable of leaving the water at a speed of 8.0 m/s. a. what is the maximum height a steelhead trout can jump? b. leaving the water at 8.0 m/s, the trout lands on top of the water fall 1.8 m high. how long was it in the air?
Answers: 2
Physics, 22.06.2019 22:20, hailey5129
The starship enterprise is caught in a time warp and spock is forced to use the primitive techniques of the 20th century to determine the specific heat capacity of an unknown mineral. the 125-g sample was heated to 96.3°c and placed into a calorimeter containing 85.9 g of water at 20.0°c. the heat capacity of the calorimeter was 14.2 j/k. the final temperature in the calorimeter was 24.5°c. what is the specific heat capacity (in j/g°c) of the mineral? enter to 4 decimal places.
Answers: 1
1.
Which of the following is a true statement concerning the electrostatic force and gra...
Which of the following is a true statement concerning the electrostatic force and gra...
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