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3 years ago

Help please Derive an equationTa=1.44T1/2

Physics

1 answer:

Nezavi [6.7K]3 years ago

4 0

Answer:

To derive an equation you must indicate the variable you want to solve for.
Here we have tension of an object A and Tension 1.
Two variables or unknown are given hence we cannot derive any other equations.

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A concrete piling of 50 kg is suspended from a steel wire of diameter 1.0 mm and length 11.2 m. How much will the wire stretch?

pentagon [3]

Explanation:

It is given that,

Mass of concrete pilling, m = 50 kg

Diameter of wire, d = 1 mm

Radius of wire, r = 0.0005 m

Length of wire, L = 11.2

Young modulus of steel, $Y=20\times 10^{10}\ N/m^2$

The young modulus of a wire is given by :

$Y=\dfrac{\dfrac{F}{A}}{\dfrac{\Delta L}{L}}$

$Y=\dfrac{F.L}{A\Delta L}$

$\Delta L=\dfrac{F.L}{A.Y}$

$\Delta L=\dfrac{50\ kg\times 9.8\ m/s^2\times 11.2\ m}{\pi (0.0005\ m)^2\times 20\times 10^{10}\ N/m^2}$

$\Delta L=0.034\ m$

So, the wire will stretch 0.034 meters. Hence, this is the required solution.

8 0

4 years ago

The y-axis of a position-time graph represents__________.

Sladkaya [172]

Answer:position relative to the starting point

Explanation:

5 0

3 years ago

To Which of the following represents the relative order of wavelengths from least

Alex787 [66]

Answer:

A) ultraviolet light ---> violet light ----> red light-----> infrared light

Explanation:

We know that the electromagnetic spectrum with the wavelength from least to greatest is (also refer attachment)

gamma ray
X- rays
Ultra-violet
Visible

Violet

Indigo

Blue

Green

Yellow

Orange

Red

Infra-red

Microwave
Radio wave

Hence the relative order of wavelengths from least to greatest in the electromagnetic spectrum is

A) ultraviolet light ---> violet light ----> red light-----> infrared light

5 0

4 years ago

If the net work done on an object is zero, what can you determine about the object's kinetic energy?(A) The object's kinetic ene

aev [14]

Answer:

(D) The object's kinetic energy is zero.

Explanation:

Work theory

Work (W) is defined as the product of force F) by the distance (d)the body travels due to this force:

W= F*d Formula ( 1)

The component of the force that performs work must be parallel to the displacement.

Kinetic Energy Theory

Kinetic energy is the energy associated with bodies that are in motion, depends on the mass and speed of the body.

Ek =(1/2)*m*v²

The kinetic energy, Ek, is measured in joules (J), the mass, m, is measured in kilograms (kg) and the velocity, v, in meters / second (m / s).

Relationship between work and kinetic energy

A body remains at rest if the force applied is zero or if it does not move. In both cases the work will be zero.

For work and kinetic energy to have a non-zero value, the body must be in motion.

In other words, the work is equal to zero if there is no displacement, so its speed will be zero, the same as its kinetic energy.

7 0

4 years ago

Not really understanding this, wouldn't mind some help. : )

ddd [48]

Explanation:

Given

Mass (m) = 1200 kg

Acceleration (a) = 3 m/s²

Force (F) = ?

We know

F = m * a

= 1200 * 3

= 3600 Newton.

Therefore the force acting on the car is 3600 Newton.

Hope it will help):)

5 0

3 years ago

Help please Derive an equationTa=1.44T1/2​

Help please Derive an equationTa=1.44T1/2