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Sedbober [7]
3 years ago
7

If a 70-kg swimmer pushed off a pool wall with a force of 250 N, at wha rate will the swimmer accelerate from the wall

Physics
1 answer:
Kitty [74]3 years ago
4 0

Force = mass x acceleration

Here we have mass and a force so we are solving for acceleration:

Isolate for acceleration in the equation

Force / mass = acceleration

Fill in the equation:

250 / 70 = acceleration

Acceleration = 3.57 m/s^2

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A particle in uniform circular motion requires a net force acting in what direction?
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The net force will point towards the acceleration of the object, as supported by Newton's second law.
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If you were on a decision making board with the task of choosing which innovation to fund, what criteria would you use to make y
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Explanation:

The criteria for decision making would be

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3 0
3 years ago
Calculate the potential energy of a +1.0μC point charge sitting 0.1m from a -5.0μC point charge.
AfilCa [17]

Answer:

P.E.      =   -0.449 J

Explanation:

Potential energy of a charge particle in any electrostatic field is defined as the amount of work done ( in negative ) to bring that charge particle from any position to a new position r.

Now Potential energy is defined by this formula,

P.E. = k q₁ q₂/ r

where P.E. is the potential energy.

k = 1/( 4πε₀) = 8.99 × 10⁹ C²/ ( Nm²)

q₁ = charge of one particle = +1.0μC

q₂ = charge of another particle = -5.0μC

r = distance = 0.1 m

Now , P.E. = 8.99 × 10⁹C²/ ( Nm²) * ( -5.0 × 10⁻⁶ C ) × ( 1 × 10⁻⁶ C ) / 0.1 m

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8 0
3 years ago
un tanque de gasolina de 40 litros fue llenado por la noche, cuando la temperatura era de 68 grados farenheit. Al dia siguiente
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Answer:

Volume of gasoline that expands and spills out is 1.33 ltr

Explanation:

As we know that when temperature of the liquid is increased then its volume will expand and it is given as

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here we know that

V_o = 40 Ltr

volume expansion coefficient of the gasoline is given as

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change in temperature is given as

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\Delta T = 35 ^oC

Now we have

\Delta V = 40(950 \times 10^{-6})(35)

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3 0
3 years ago
While studying bacterial cells, scientists measure the lengths of the cells in one colony. The chart shows their data. The scien
jok3333 [9.3K]

Answer:

Following are the solution to the given question:

Explanation:

Its best approach to this measurement ought to be to indicate that there was a mistake throughout the calculation, as well as the gathering of further details while researching cells for bacteria, directly measuring the cell length of a colony. This chart illustrates its data, which scientists have observed that there's still a measurement.

5 0
2 years ago
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