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3 years ago

In which point the electric intensity of a sphere is maximum

1 answer:

7 0

Here, as the charge is uniformly distributed in the sphere, we will consider s as an area of the sphere which is, s=4πr2 and r is radius of the gaussian surface shown in the figure above. From this, it can be seen that

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A laser produces light at 5.32x10-7 m.

Blababa [14]

Answer:

Explanation:

speed = frequency x wavelength

speed of light in vacuum is 3.0 x 10^8

wavelength = 5.32 x10 ^-7

3.0 x 10 ^ 8 = 5.32 x 10^-7 x frequency

frequency = 5.63909 x 10^14

round it off = 5.64 x 10^14 Hz

thus the answer is D

hope this helps please mark it

6 0

3 years ago

a water bomber flying with a horizontal speed of 85m/s at a height of 3000m drops a load on a fire below. How far in front of th

Andreyy89

Answer:

2081.65 m

Explanation:

We'll begin by calculating the time taken for the load to get to the target. This can be obtained as follow:

Height (h) = 3000 m

Acceleration due to gravity (g) = 10 m/s²

Time (t) =?

h = ½gt²

3000 = ½ × 10 × t²

3000 = 5 × t²

Divide both side by 5

t² = 3000 / 5

t² = 600

Take the square root of both side

t = √600

t = 24.49 s

Finally, we shall determine the distance from the target at which the load should be released. This can be obtained as follow:

Horizontal velocity (u) = 85 m/s

Time (t) = 24.49 s

Horizontal distance (s) =?

s = ut

s = 85 × 24.49

s = 2081.65 m

Thus, the load should be released from 2081.65 m.

3 0

3 years ago

A sky diver, mass 90 kg, reaches a terminal velocity of 60 m/s. What is the approximate magnitude of the force of air resistance

Komok [63]

Answer:

The approximate magnitude of the force of air resistance is 540 N.

Explanation:

6 0

2 years ago

KATZPSEF1 30.P.041. My Notes Ask Your Teacher A charged particle enters a region of space with a uniform magnetic field B = 1.98

sladkih [1.3K]

Answer: The charge on the particle is positive

While the magnitude = 0.00028C

Explanation:

Please find the attached file for the solution

6 0

3 years ago

Review Questions

harina [27]

Answer:

Milky way is a galaxy . Milky way has a spiral shape . The Milky Way has a relatively low surface brightness due to the gases and dust that fills the galactic disk. it comprises of dust particles , 200 billion stars.
they are bounded into clusters due to gravitational force out there.
when you ask how is gravity important to the galaxy within universe then ask what hold the lump of solar system together in this great cosmic soup when whole universe is expanding ? yea , there is gravity . Hravity holds these objects together and today we have a cute solar system .
The galaxies are generally observed using shapes - some are eleptical , some are spiral and some are just irregular
GRAVITY !!yes , gravity holds the shape of stars in galaxy , gravity helps in keeping thing stable in universe. gravity restricts the moon from flying away in the space as the gravity of earth atttracts it towards itself .

4 0

3 years ago

In which point the electric intensity of a sphere is maximum​

In which point the electric intensity of a sphere is maximum