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3 years ago

Why do adults make bigger splashes when they jump into swimming pools than small children?

Physics

1 answer:

Semenov [28]3 years ago

5 0

Answer:

it bc the adults are bigger then us kid so when they dip in the pool it makes bigger splashes

Explanation:

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A 5.00-kg box slides 5.50 m across the floor before coming to rest. What is the coefficient of kinetic friction between the floo

Stels [109]

Answer:

μk = 0.08

Explanation:

Applying the work-energy theorem, we know that the change in kinetic energy of the box, is equal to the total work done on it.
The only force acting on the box capable of doing work, is the dynamic friction force.
This force is just the product of the coefficient of kinetic friction, and the normal force.
In this case, if the floor is level, the normal force is equal and opposite to the gravity force, Fg.
So we can write the following expression:

$\Delta K = -\frac{1}{2} * m* v_{0} ^{2} = \mu_{k} *m*g* cos (180\º)$

Replacing by the givens, we can solve for μk, as follows:

$\mu_{k} = \frac{v_{0}^{2} }{2*g*d} = \frac{9 (m/s)2}{2*9.8 m/s2*5.50m} = 0.08$

5 0

3 years ago

What is the purpose of the Climate Friendly Farming Project?

blsea [12.9K]

<span>The Climate Friendly Farming Project was designed to provide funding for long term research into the sustainability and adaptability of agricultural systems(wheat, vegetables, and dairy systems) as increasing greenhouse gases propagate and decline the efficiency of current agricultural practice.</span>

4 0

3 years ago

A series of pulses of amplitude 0.25 m are sent down a string that is attached to a post at one end. The pulses are reflected at

Klio2033 [76]

Answer:

Explanation:

since the string is rigidly attached to the post, the reflected and incident pulses are of the same amplitude but different polarities. At the point where the two pulses meet, the amplitude will be the addition of that of the incident and the reflected pulses. i.e Amplitude= 0.25 + -0.25=0m

4 0

4 years ago

A boy of mass 50 kg exerts a pressure of 25000 pa calculate the area

gtnhenbr [62]

Answer: A = 0.02 m²

Explanation: Solution:

Pressure is expressed in the formula:

P = F / A where F = mg

= mg /A

= 50 kg ( 9.8 m/s²) / 25000 Pa

= 0.02 m²

3 0

3 years ago

If you take a bar magnet with both n & s poles and cut it in half, you get

creativ13 [48]

I think you get half of the magnetic field and that means half the power of the magnetic field.

7 0

3 years ago