4 years ago

How much physical activity should an adult have each week?

Physics

2 answers:

il63 [147K]4 years ago

5 0

Answer:

D. 30 minutes per day, 5 days a week

Explanation:

As per World Health Organization (WHO) physical activity includes the following :

- Leisure time physical activity like running

- Occupational work

- Household chores

- Sports

An adult (aged 18-64) should do at least 150 minutes of physical activity per week. That can be divided over 5 days a week as well with 30 minutes of physical activity per day.

Mars2501 [29]4 years ago

4 0

d 30 minutes a day , 5 days a week

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Electrons (mass m, charge –e) are accelerated from rest through a potential difference V and are then deflected by a magnetic fi

adell [148]

Answer:

$r=\dfrac{1}{B}\sqrt{\dfrac{2Vm}{e}}$

Explanation:

Let m and e are the mass and charge of an electron. It is accelerated from rest through a potential difference V and are then deflected by a magnetic field that is perpendicular to their velocity. Let v is the velocity of the electron. It can be calculated as :

$\dfrac{1}{2}mv^2=eV$