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julsineya [31]
3 years ago
15

It is recommended that adults should get at least 150 minutes of moderate-intensity physical activity each week. they should als

o do strength-training exercises. what is the minimum number of days that adults should do strength-training exercises each week?select one of the options below as your answer:a. one day a weekb. two days a weekc. three days a weekd. four days a week
Physics
1 answer:
shepuryov [24]3 years ago
4 0
I think it's three days. I read it in assignment potion before but it's kinds fuzzy but I believe it's three days. Hopefully thats correct.
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For most people, getting 8 to 9 hours of sleep increases concentration, improves physical health, and improves one's mood.
olga2289 [7]
That statement is true
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3 years ago
Read 2 more answers
A uniform electric field with a magnitude of 5750 N/C points in the positive x direction. Find the change in electric potential
castortr0y [4]

Explanation:

Given that,

Electric field = 5750 N/C

Charge q=+10.5\times10^{-6}\ C

Distance = 5.50 cm

(a). When the charge is moved in the positive x- direction

We need to calculate the change in electric potential energy

Using formula of electric potential energy

\Delta U=-W

\Delta U=-F\cdot d

\Delta U=-q(E\cdot d)

Put the value into the formula

\Delta U=-10.5\times10^{-6}\times5750\times5.50\times10^{-2}

\Delta U=-3.32\times10^{-3}\ J

The change in electric potential energy  is -3.32\times10^{-3}\ J

(b). When the charge is moved in the negative x- direction

We need to calculate the change in electric potential energy

Using formula of electric potential energy

\Delta U=-W

\Delta U=-F\cdot (-d)

\Delta U=-q(E\cdot (-d))

Put the value into the formula

\Delta U=-10.5\times10^{-6}\times5750\times(-5.50\times10^{-2})

\Delta U=3.32\times10^{-3}\ J

The change in electric potential energy  is 3.32\times10^{-3}\ J

Hence, This is the required solution.

3 0
4 years ago
GUESS WHAT? I'LL MAKE YOU BRAINLIEST! EASY QUESTION!!
avanturin [10]

Here are the 2 reasons:

- Sun damages the eyes

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6 0
3 years ago
Read 2 more answers
A motorbike accelerates from 15m/s to 25m/s in 15 seconds.
RSB [31]

distance traveled by a uniformly accelerated bike is given as

d = \frac{v_f + v_i}{2} (t)

here we know that

v_f = 25 m/s

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now we will have from above equation

d = \frac{15 + 25}{2} (15)

d = 20 (15) = 300 m

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5 0
3 years ago
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