Use the drop-down menus to complete each sentence. The force applied to the physics cart is manipulated. This is the (Independent/Dependant/Constant) variable. The cart accelerates due to the force applied to the cart.

Acceleration is therefore the (Independent/Dependant/Constant) variable.

A “constant” is a parameter that stays the same regardless of the variables.

One parameter of the cart that is held constant is the (Applied force/Acceleration/Mass) .

explanation:

the masses of the objects and the distance between them

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.

54 degrees incident angle = reflected angle

angle is from normal turned to line of ray

prndulum needs thread, weight clock to time swings