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3 years ago

If the velocity versus time graph of an object is a horizontal line, the object is

2 answers:

5 0

None of those choices is applicable. 'A' is the closest, but it doesn't really do the job. The object is moving with constant speed. If the horizontal line happens to coincide with the x-axis, then the constant speed is zero.

FromTheMoon [43]3 years ago

3 0

A. Moving with constant non-zero speed

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What molecular geometry would be expected for f2 and hf?

Kaylis [27]

The molecular geometry of both F2 and HF is linear.

There are only two atoms which are covalently bonded and thus, the bonding scheme with the atoms looks like this;

F --- F

H---F

So, both are linear.

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2 years ago

100 Points !!!!!!!! I WILL GIVE BRAINLIEST

kumpel [21]

Answer: 1. 0.25 m/s squared

2. A = 0.4 m/s^2

3.=20kg. I did this before.

Explanation:

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3 years ago

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A solid conducting sphere with radius R carries a positive total charge Q. The sphere is surrounded by an insulating shell with

Illusion [34]

Answer:

Explanation:

Volume of the insulating shell is,

$V_{shell}=\frac{4}{3}\pi(R^3_2-R^3_1)$

Charge density of the shell is,

$\rho=\frac{Q_{shell}}{\frac{4}{3}\pi(R^3_2-R^3_1)}$

Here, $R_2 =2R, R_1 =R \,and\, Q_{shell} =-Q$

$\rho=\frac{Q_{shell}}{\frac{4}{3}\pi((2R)^3-R^3)}=\frac{-3Q}{28\piR^3}$

The electric field is $E=\frac{1}{4\pi\epsilon_0}\frac{Qr}{R^3}$

For 0 <r<R the electric field is zero, because the electric field inside the conductor is zero.

For R <r <2R According to gauss law

$E(4\pi r^2)=\frac{Q}{\epsilon_0}+\frac{4\pi\rho}{3\epsilon_0}(r^3-R^3)$

substitute $\rho=\frac{-3Q}{28\piR^3}$

$E=\frac{2}{7\pi\epsilon_0}\frac{Q}{r^2}-\frac{Qr}{28\piR^3}$

The net charge enclosed for each r in this range is positive and the electric field is outward

For r>2R

Charge enclosed is zero, so electric field is zero

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3 years ago

The gradual reduction of the amplitude

Lelu [443]

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3 years ago

What is it called when I sound waves slowed buy a new medium

statuscvo [17]

Answer:

YFUYFYUULCFTYCTULYFUY

Explanation:

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