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3 years ago

What was Robert Boyle's most famous discovery about gases?

Physics

1 answer:

stellarik [79]3 years ago

4 0

Answer:

The inverse(opposite) relationship between absolute pressure and the volume of a gas. This is known as Boyle's law.

Explanation:

The temperature must be kept the same in a closed system.

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an unknown charge exerts an attractive force of 4.23 E 13 N. If these charges are separated by 8cm, what is the magnitude of the

mash [69]

Answer:

Since there is attraction force between two charges so the other charge must be - 3C

Explanation:

As we know that the force between two charges is given by formula

$F = \frac{kq_1q_2}{r^2}$

here we know that

$F = 4.23 \times 10^{13}N$

also we know that

$q_1 = 10C$

r = 8 cm

now we have

$4.23 \times 10^{13} = \frac{(9\times 10^9)(10)q}{0.08^2}$

so we have

$q = -3C$

7 0

3 years ago

Which of the following statements are true of the horizontal motion of projectiles? List all that apply.a. A projectile does not

r-ruslan [8.4K]

Answer:

d. A projectile with a horizontal component of motion will have a constant horizontal velocity.

f. The horizontal velocity of a projectile is unaffected by the vertical velocity; these two components of motion are independent of each other.

g. The horizontal displacement of a projectile is dependent upon the time of flight and the initial horizontal velocity.

h. The final horizontal velocity of a projectile is always equal to the initial horizontal velocity.

Explanation:

When we are dealing with parabolic motion, the x-component of the velocity remains the same (hence, in the case of the horizontal component, the acceleration will always be zero), <u>while the y-component always change because it is affected by the acceleration due gravity that acts verticaly.</u>

On the other hand, the horizontal displacement $x$ of the projectile is mathematically expressed as:

$x=V_{ox} t$

Where:

$V_{ox}$ is the projectile's horizontal component of the initial velocity

$t$ is the time the parabolic motion lasts

This means <u>the projectile's horizontal displacement is directly proportional to the horizontal component of the initial velocity and the total time the projectile describes the parabolic motion</u>.

Of course, all of this considerations are assuming this is an ideal parabolic path and there is no air resistance.

5 0

4 years ago

What is the magnitude of the sum of the two vectors A = 36 units at 53 degrees, and B =47 units at 157 degrees.

Thepotemich [5.8K]

Answer:

51.82

Explanation:

First of all, let's convert both vectors to cartesian coordinates:

Va = 36 < 53° = (36*cos(53), 36*sin(53))

Va = (21.67, 28.75)

Vb = 47 < 157° = (47*cos(157), 47*sin(157))

Vb = (-43.26, 18.36)

The sum of both vectors will be:

Va+Vb = (-21.59, 47.11) Now we will calculate the module of this vector:

$|Va+Vb| = \sqrt{(-21.59)^2+(47.11)^2}=51.82$

4 0

4 years ago

An amplitude modulation transmitter radiates 10 KW power with the modulation percentage of 75 %. Find the magnitude of the carri

Lostsunrise [7]

Answer:

carrier power is 7.8 kW

Explanation:

given data

power = 10 kW

modulation percentage = 75 %

to find out

carrier power

solution

we will use here power transmitted equation that is

power = $carrier power * ( 1+ \frac{modulation}{2})$ .................1

put here value in equation 1 we get carrier power

10 = $carrier power *(1+ \frac{0.75}{2})$

carrier power = 7.8

so carrier power is 7.8 kW

7 0

3 years ago

In a certain region of space the electric potential increases uniformly from east to west and does not vary in any other directi

Ne4ueva [31]

Answer:

Explanation:

The relation between electric field and potential difference is as follows

E = - dV / dr

That means if dV is positive , E is negative . In other words , if potential increases , E is negative or in opposite direction in which potential increases .

Here the electric potential increases uniformly from east to west , that means electric field is from west to east . Since potential is uniformly increasing that means

dV / dr = constant

E = constant

Electric field is constant .

So the option which is correct is

" points east and does not vary with position " .

3 0

3 years ago

What was Robert Boyle's most famous discovery about gases​?

What was Robert Boyle's most famous discovery about gases?