Convert: There are 1,000 meters in a kilometer and 3,600 seconds in an hour. You can convert units of meters per second (m/s) into kilometers per hour (km/h) by multiplying by 3,600 and dividing by 1,000.
(Hint: That is the same thing as multiplying by 3.6.)
A. What is the speed of a cheetah in kilometers per hour?
B. What is the speed of a person in kilometers per hour?
The speed of the cheetah is 30meters per second distance is 30 meters and time was 1 second. The persons speed is 7.14 meters per second and distance is 30 meters and time is 4.2 25 branliy points and brainliest

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.

compass can be used day and night, cloudy or sunny

i think its c if i'm wrong