3 years ago

What happens at the Bernoulli effect

Physics

1 answer:

Paul [167]3 years ago

5 0

Answer:

Within a horizontal flow fluid, points of higher fluid speed will have less pressure than points of slower fluid speed.

Explanation:

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One ounce of a well-known breakfast cereal contains 104 Calories (1 food Calorie = 4186 J). If 2.5% of this energy could be conv

GalinKa [24]

Answer:

482.4 kg

Explanation:

104 calorie = 435344 J

The 2.5% of this energy equals to

435344 * 0.0025 = 10883.6 J

If this energy is converted to work done on lifting a barbell by a distance of 2.3. By the formula of Work W = force * distance then the force he exerts on the barbell is

$F = \frac{W}{D} = \frac{10883.6
}{2.3} = 4732 N$

Assuming gravitational constant g = 9.81 m/s2 then the mass of the barbell is

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3 years ago

A spring hangs from the ceiling with an unstretched length of x 0 = 0.69 m x0=0.69 m . A m 1 = 7.5 kg m1=7.5 kg block is hung fr

sergejj [24]

Answer:

x2=0.732m

Explanation:

We can calculate the spring constant using the equilibrium equation of the block m1. Since the spring is in equilibrium, we can say that the acceleration of the block is equal to zero. So, its equilibrium equation is:

$m_1g-k\Delta x_1=0\\\\\implies k=\frac{m_1g}{\Delta x_1}\\\\k=\frac{(7.5kg)(9.8m/s^{2})}{0.84m-0.69m}=490N/m$