What distance would be covered in 10
minutes by a train that travels at a constant
speed of 500 meters every 10 seconds?

30000 meters

Explanation:

there are 6 ten seconds in a minute times 10 is 60 500 meters times 60 is 30000

30,000 m

Explanation:

Given:

Speed= 500 m/ 10 sec = 50 m/sec

Time= 10 min = 10 min × 60 sec = 600 sec

Solution : Relationship of Speed, time ans Distance is

Distance = speed × time

Distance = 50 m/sec × 600 sec =30,000 m

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.

the answer is a. the yacht traveled from the dock north to the 200-meter marker in the bay in less than 5 minutes, giving the passengers several more hours to fish.

im doing peak rn so sry if its wrong