Describe the structure of an atom.
a) the nucleus is the dense center of the atom composed of...
Physics, 22.10.2019 05:00 ghari112345
Describe the structure of an atom.
a) the nucleus is the dense center of the atom composed of protons and neutrons. surrounding the nucleus is an electron cloud composed of electrons.
b) the nucleus is the dense center of the atom composed of electrons and neutrons. surrounding the nucleus is an electron cloud composed of protons.
c) the electron cloud is the dense center of the atom composed of electrons. surrounding the electron cloud is a nucleus composed of protons and neutrons.
d) the electron cloud is the dense center of the atom composed of protons and neutrons. surrounding the electron cloud is a nucleus composed of electrons.
Answers: 3
Physics, 22.06.2019 11:30, glizbethh00
Madison pushes with a 210-n horizontal force on a 24-kg crate of coffee resting on a warehouse floor. the force of friction on the crate is 74 n. what is the acceleration?
Answers: 1
Physics, 22.06.2019 19:30, paulstanley972
Visualize the problem and identify special cases first examine the problem by drawing a picture and visualizing the motion. apply newton's 2nd law, ∑f⃗ =ma⃗ , to each body in your mind. don't worry about which quantities are given. think about the forces on each body: how are these consistent with the direction of the acceleration for that body? can you think of any special cases that you can solve quickly now and use to test your understanding later? one special case in this problem is if m2=0, in which case block 1 would simply fall freely under the acceleration of gravity: a⃗ 1=−gj^.
Answers: 1
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