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belka [17]
3 years ago
11

Bibek went to the swimming pool. he saw the pool to be shallower and is redy to jump into the swimmingpool . is it proper for hi

m to jump? if not why ?

Physics
1 answer:
faltersainse [42]3 years ago
6 0

Answer:

A swimming pool appears shallower than it really is due to the phenomenon of REFRACTION. Due to refraction, from rarer medium( Air ) to denser medium ( water ), the pool looks shallower

Explanation:

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That minimum coefficient of static friction between the tyres and the road that will allow the car that will round safely.
liraira [26]

Answer:

The answer is "0.13562748"

Explanation:

Please find the complete question in the attached file.

Using formula:

\bold{U_s=\frac{v^2}{rg}}

Given:

r=1.60 \times 10^2 \ m\\\\g=9.8\\\\v= 52.5\ \frac{km}{hr}= 14.583\ \frac{m}{s}

put the value into the above-given formula:

U_s= \frac{14.583^2}{160 \times 9.8}

    = \frac{212.663889}{1568}\\\\=0.13562748

3 0
3 years ago
A boy pushes a stationary box of mass 20 kg with a force of 50 N.
pav-90 [236]

Answer:

2.5m/s^2

Explanation:

Since there is no friction, the only force acting on the box is the applied force

We can now use the equation Fnet = ma

and we can rearrange for a

a = Fnet/m

now input the values

a = 50N/20kg

a = 2.5 m/s^2

6 0
3 years ago
You are loading a refrigerator weighing 2267 N onto a truck, using a wheeled cart. The refrigerator is raised 1.09 m to the truc
meriva

Answer:

a).

Wmin= 2471.03 J

W=1603.01 J

Explanation:

Weight, w= 2267 N

w= m*g\\W=m*g*h \\W=w*h

Minimum work 'h' is the distance the refrigerator is raised h=1.09m

W_{min}=2267 N* 1.09m\\W_{min}=2471.03 J

The motion is no frictional force so, the magnitude of the force with a angle of 45.0° is find using:

W=m*g*h'\\h'= sin(45)\\W=2267N*sin(45)\\W=1603.01 J

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MariettaO [177]

Explanation:

the weight of the people inside the bus

4 0
3 years ago
The energies of electrons are said to be quantized. Explain what this means. please explain.
sleet_krkn [62]
To move from one energy<span> level to another, an </span>electron<span> must gain or lose just the right amount of </span>energy<span>. </span>Electrons are said to be quantized<span> because they need a quantum of </span>energy<span> to move to a different sublevel. ... When atoms absorb </span>energy<span>, </span>electrons<span> move into higher </span>energy<span> levels.</span>
8 0
3 years ago
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