Physics, 24.11.2020 04:20 dianasr424
A 68 kg runner exerts a force of 59N. What is the acceleration of the runner?
Answers: 3
Physics, 22.06.2019 04:00
When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative
Answers: 2
Physics, 22.06.2019 19:00
Which of the following list the divisions of the geologic time scale in order from longest to shortest
Answers: 1
Physics, 22.06.2019 22:30
Materials will have different energies associated with the electrons inside them. this is related to how strongly bound they are by their work function. if we sandwich a material with a very low energy between two materials with a high energy, we create a trap for an electron. if this trap is very narrow in one direction in comparison to the others, this is approximately a 1-dimensional box that confines the electron. what is the lowest energy of an electron in the box if the thinnest direction across the materials is 4.81 nm?
Answers: 3
Physics, 22.06.2019 23:50
An alpha particle with kinetic energy 12.5 mev makes a collision with lead nucleus, but it is not "aimed" at the center of the lead nucleus, and has an initial nonzero angular momentum (with respect to the stationary lead nucleus) of magnitude l = p0 b, where p0 is the magnitude of the initial momentum of the alpha particle and b=1.40Γ10β12 m. (assume that the lead nucleus remains stationary and that it may be treated as a point charge. the atomic number of lead is 82. the alpha particle is a helium nucleus, with atomic number 2.) what is the distance of closest approach?
Answers: 2
A 68 kg runner exerts a force of 59N. What is the acceleration of the runner?...
English, 02.09.2021 06:50
Spanish, 02.09.2021 06:50
Mathematics, 02.09.2021 06:50
Social Studies, 02.09.2021 06:50
Mathematics, 02.09.2021 06:50
Mathematics, 02.09.2021 06:50
Mathematics, 02.09.2021 06:50
Mathematics, 02.09.2021 07:00
History, 02.09.2021 07:00
English, 02.09.2021 07:00
Mathematics, 02.09.2021 07:00