A satellite’s original velocity is 10,000 m/s. After 60 seconds it s going 5,000 m/s. What is the acceleration? Remember acceleration = (final speed – initial speed) ÷ time . (p. s i think this is physics? i don't know i just know its science so if anyone can help with this it would be greatly appreciated)

Explanation:

Given that,

Orginal speed, u = 10,000 m/s

Final speed, v = 5,000 m/s

Time, t = 60 s

To find,

Acceleration of the satellite.

The acceleration of an object is equal to the change in its speed divided by time. So,

So, the acceleration of the satellite is and it is deaccelerating.

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; how far out of place which the object finished relative to the starting location;