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3 years ago

A positive test charge q is released near a positive fixed charge Q. As q moves away from Q, it will move with

1 answer:

4 0

According to the Newton's First Law, as q moves away from Q, it will move with d) decreasing as well as the acceleration. Both force and acceleration on q diminish (using <span>Coulomb's law as 1/r^2). Hope everything is helpful, I bet it's clear! Regards.</span>

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Which wave, A or B, has lower energy? A, because it has a higher amplitude B, because it has a higher amplitude A, because it ha

frutty [35]

Energy of wave depends on its amplitude and it is given as

$E = \frac{1}{2} kA^2$

here k = constant

A = amplitude

so energy will increase or decrease depends on the amplitude of the wave

So here if we need to check which wave has lower energy then we need to compare the amplitude.

If the amplitude is less then energy must be less

So please check in the figure that which wave out of A and B has lesser amplitude to find out the wave of lesser energy

5 0

3 years ago

Read 2 more answers

An ostrich can rub at speeds of up 72 km/h. How long will it take (in seconds) an ostrich to run 1.5 km at this top speed

mamaluj [8]

Answer:

A:75 seconds

Explanation:

1.5 km/72 km/h = 0 0208 h = 1.25 minutes = 75 seconds

7 0

3 years ago

PLZ HELP ME FAST! How does the placement of the metal coil closer or further away from the magnet affect the motor’s strength? W

love history [14]

A very long solenoid has a magnetic field inside which depends on the current in the wire and the number of turns per unit length of the solenoid. ... Adding more turns in the coil can also increase the total resistance of the wire.

3 0

3 years ago

A drone flies 8 m/s due East with respects to the wind. The wind is blowing 6 m/s due North with respects to the ground. What is

Shalnov [3]

Answer:

v=10 m/s

Explanation:

Given that,

Speed of a drone is 8 m/s due East with respects to the wind

Speed of a drone 6 m/s due North with respect to the ground.

We need to find the speed of the drone with respect to the ground. Let v is the speed. It is given by the resultant of two speeds.

$v=\sqrt{8^2+6^2} \\\\v=10\ m/s$

So, the speed of the drone with respect to the ground is 10 m/s.

7 0

3 years ago

Please show work on how to get to the answer. When the diameter of a vessel is increased by 2 times, the flow will :

Sonja [21]

Answer:

(a) Increase 16 times

Explanation:

According to the Poiseuille flow equation the rate of flow of fluid is directly related to four time square of the radius of the vessel.

$F\alpha r^{4}$

Here, F is the rate of flow, and r is the radius of vessel.

Now according to the question diameter is increased by 2 times then radius is also increased by two times than radius becomes 2r.

So put this value in the flow equation.

$F\alpha (2r)^{4}\\F\alpha 16r^{4}$

Therefore, the rate of flow is increased by 16 times.

6 0

3 years ago