Consider two nearly spherical soyuz payload vehicles, in orbit about earth, each with mass 9000 kg and diameter 4.0 m. they are initially at rest relative to each other, 10.0 m from center to center. (as we will see in kepler’s laws of planetary motion, both orbit earth at the same speed and interact nearly the same as if they were isolated in deep space.) determine the gravitational force between them and their initial acceleration. estimate how long it takes for them to drift together, and how fast they are moving upon impact.

260 miles per hour

explanation:

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.

wind moving at higher speeds will transfer more energy to the water, resulting in stronger waves.

their crystal patterns have been disrupted by stress