The string connecting the m1 and the m2 passes over a light frictionless pulley. Given m1 = 3.37 kg, m2 = 5.46 kg, m3 = 6.13 kg, and g = 9.8 m/s 2 . The acceleration of gravity is 9.8 m/s 2 . Find the downward acceleration of m2 mass. Answer in units of m/s 2 .

(The image of the problem is attached below)

Explanation:

Analyzing forces on m2 we can se that there are three forces on it. F1 that is the force the m1 mass does on 2, F3 that is the force the m3 mass does on 2 and finally the weight W of block two. If we choose downwards as positive direction the net force is:

because Newton's third law the force F3 the chord does to m2 is equal to the weight of 3 and the same for 1, so (1) is:

Now we can find the acceleration (a) using Newton's second law:

Solving for a:

answer: the correct answer is 1.

explanation: there are various process in which a radioactive nuclei decays:

1) alpha decay: in this process, a heavier nuclei decays into lighter nuclei by releasing alpha particle. the mass number is reduced by 4 units.

2) electron capture: in this decay process, a parent nuclei absorbs an electron and gets converted into a neutron. simply, a proton and an electron combines together to form a neutron. mass number does not change in this process.

3) gamma ray emission: it is a decay process in which an unstable nuclei gives excess energy by a spontaneous electromagnetic process. this decay releases . this process does not change the mass number.

4) positron emission: it is a type of decay process, in which a proton gets converted to neutron and an electron neutrino. this is also known as -decay. in this the mass number remains same.

from the above information, we see that only alpha-decay is producing a change in the mass number of the nucleus.

answer: i'm not sure which is which for i get confused on it all the time but i can tell you that the answer lies with the convex and concave devices. i hope this you. have a good day and best of luck to you!

explanation: