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2 years ago

15

According to Newton's second law, force is equal to ______________.

2 answers:

Shalnov [3]2 years ago

7 0

<h2>Answer:</h2>

Force is equal to mass times acceleration

<h2>Explanation:</h2>

According to second law of Newton when a force is applied on an object, it produces an acceleration in that body and that acceleration is dependent upon the mass of that body. If the mass of the body is more then more force is required to produce an acceleration and vice versa. Mathematically this can be written as

F = m x a

Svetach [21]2 years ago

3 0

Hey there!
The Second Law of Motion by Newton is f = ma, and that means the force of an object is defined by its mass times its acceleration.
Therefore your answer is e.
Hope this helps!

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What holds the moon in orbit around the earth?<br> A. The sun's gravity<br> B. The Earth's gravity

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Answer:

Earth's gravity

Explanation:

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What is the magnetic force on a proton that is moving at 5.2 x 107 m/s to the

alisha [4.7K]

Answer:

1.1648×10⁻¹¹ N

Explanation:

Using

F = qvBsinФ..................... Equation 1

Where F = Force on the proton, q = charge, v = velocity, B = magnetic Field, Ф = angle between the magnetic Field and the velocity.

Note: The angle between v and B = 90°

Given: v = 5.2×10⁷ m/s, B = 1.4 T, q = 1.6×10⁻¹⁹ C, Ф = 90°

Substitute into equation 1

F = 1.6×10⁻¹⁹(5.2×10⁷)(1.4)sin90°

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What force is represented by the vector?

choli [55]

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As a woman walks, her entire weight is momentarily placed on one heel of her high-heeled shoes. Calculate the pressure exerted o

STatiana [176]

Answer:

3335400 N/m² or 483.75889 lb/in²

Explanation:

g = Acceleration due to gravity = 9.81 m/s²

A = Area = 1.5 cm²

m = Mass of woman = 51 kg

F = Force = mg

When we divide force by area we get pressure

$P=\frac{F}{A}\\\Rightarrow P=\frac{mg}{A}\\\Rightarrow P=\frac{51\times 9.81}{1.5\times 10^{-4}}\\\Rightarrow P=3335400\ N/m^2$

$1\ N/m^2=\frac{1}{6894.757}\ lb/in^2$

$3335400\ N/m^2=3335400\times \frac{1}{6894.757}\ lb/in^2=483.75889\ lb/in^2$

The pressure exerted on the floor is 3335400 N/m² or 483.75889 lb/in²

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2 years ago

According to Kepler's Second Law the radius vector drawn from the Sun to a planet Multiple Choice is the same for all planets. s

Mademuasel [1]

Answer:

sweeps out equal areas in equal times.

Explanation:

As we know that there is no torque due to Sun on the planets revolving about the sun

so we will have

$\tau_{net} = 0$

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$\frac{dL}{dt}= 0$

now we also know that

$Area = \frac{1}{2}r^2d\theta$

so rate of change in area is given as

$\frac{dA}{dt} = \frac{1}{2}r^2\frac{d\theta}{dt}$

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$\frac{dA}{dt} = \frac{1}{2}r^2\omega$

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since angular momentum and mass is constant here so

all planets sweeps out equal areas in equal times.

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3 years ago