Physics, 29.11.2019 20:31 chayaharroch03

Which object has more momentum a 400 kg car traveling at 6 m/s or a 15 kg cannonball traveling at 15 m/s?

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Answer from: sabrinarea041904

The car having 400 kg and speed 6 m/s have more momentum than The car having 15 kg and speed 15 m/s .

Explanation:

Given as :

The mass of Car A = 400 kg

The velocity of Car A = 6 m/s

The mass of Car B = 15 kg

The velocity of Car B = 15 m/s

Let The momentum of Car A = M_1

And The momentum of Car B = M_2

Now ,

Since momentum is the property of moving body , and it is defined as the products of mass velocity of body .

I.e, M = mass × velocity

So, The momentum of Car A = mass of Car A × velocity of Car A

I.e M_1 = 400 kg × 6 m/s

I.e M_1 = 2400 kg m/s

Again ,

So, The momentum of Car B = mass of Car B × velocity of Car B

I.e M_2 = 15 kg × 15 m/s

I.e M_2 = 225 kg m/s

So, ∵ 2400 kg m/s 225 kg m/s

∴ M_1 M_1

so, Momentum of car A more than momentum of car B

Hence The car having 400 kg and speed 6 m/s have more momentum than The car having 15 kg and speed 15 m/s . Answer

Answer from: Quest

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.

$_a^z\textrm{x}\rightarrow _{a-2}^{z-4}+_2^4\alpha$

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.

$_a^z\textrm{x}+_{-1}^0\textrm{e}\rightarrow _{z-1}^a\textrm{y}$

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 $\gamma -radiations$ . this process does not change the mass number.

$_a^z\textrm{x}^*\rightarrow _a^z\textrm{x}+_0^0\gamma$

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 $\beta ^+$ -decay. in this the mass number remains same.

$_a^z\textrm{x}\rightarrow _{z-1}^a\textrm{y}+_{+1}^0e$

from the above information, we see that only alpha-decay is producing a change in the mass number of the nucleus.

Answer from: Quest

this is poiselle's equation from fluid mechanic in physics. mech eng

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Which object has more momentum a 400 kg car traveling at 6 m/s or a 15 kg cannonball traveling at 15...

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