Beryllium (be) has an atomic number of 4 and an atomic mass of 9. beryllium has
4 elect...
Physics, 08.10.2019 23:50 CoolxBreeze
Beryllium (be) has an atomic number of 4 and an atomic mass of 9. beryllium has
4 electrons
5 electrons
9 electrons
13 electrons
Answers: 3
Physics, 22.06.2019 03:30
Using a wheel and axle, a farmer is trying to lift a bucket of water from the bottom of a well. the larger wheel has a radius of 40 cm compared to the axle that has a radius of 10 cm. if a bucket of water is 50 n, then how much effort is required to raise it? 12.5 n 200 n 2 n 500 n
Answers: 1
Physics, 22.06.2019 18:00
Consider two regions of space containing a static electric field, region a and region b. in region a the equipotential lines are more closely spaced than those in region b. what can be said about the relative strength of the electric field in the two regions? a) the electric field in region a is stronger th
Answers: 3
Physics, 22.06.2019 20:10
On a horizontal frictionless surface, a small block with mass 0.200 kg has a collision with a block of mass 0.400 kg. immediately after the collision, the 0.200 kg block is moving at 12.0 m/s in the direction 30° north of east and the 0.400 kg block is moving at 11.2 m/s in the direction 53.1° south of east. use coordinates where the +x-axis is east and the +y-axis is north.(a) what is the total kinetic energy of the two blocks after the collision (in ) what is the x-component of the total momentum of the two blocks after the collision? (indicate the direction with the sign of your ) what is the y-component of the total momentum of the two blocks after the collision? (indicate the direction with the sign of your answer.)
Answers: 1
Physics, 23.06.2019 05:00
Diego is trying to lift a piano to the second floor of his house. diego uses a pulley system and gives a big lift to the piano.the piano moves upward, then stops, and then it starts to fall to the ground. which list best describes the forces on the piano in the proper order? positive force → balanced force → negative force negative force → balanced force → positive force positive force → unbalanced force → negative force negative force → unbalanced force → positive force
Answers: 1
Mathematics, 06.05.2020 06:03
Chemistry, 06.05.2020 06:03
Mathematics, 06.05.2020 06:03
Computers and Technology, 06.05.2020 06:03
Mathematics, 06.05.2020 06:03
English, 06.05.2020 06:03
History, 06.05.2020 06:03
Mathematics, 06.05.2020 06:03
Mathematics, 06.05.2020 06:03
English, 06.05.2020 06:03
Mathematics, 06.05.2020 06:03
Mathematics, 06.05.2020 06:03
Social Studies, 06.05.2020 06:03