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padilas [110]
3 years ago
10

What is the purpose of the magnetic field in a cathode ray tube?

Physics
1 answer:
andre [41]3 years ago
4 0

Answer:

In order to determine if the cathode ray consisted of charged particles, Thomson used magnets and charged plates to deflect the cathode ray. He observed that cathode rays were deflected by a magnetic field in the same manner as a wire carrying an electric current, which was known to be negatively charged.

Explanation:

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Sort the balloons based on the kinds of charges they carry.
Arte-miy333 [17]

first one is negative

second is none

third is posotive

last one is negative

left to right order

6 0
3 years ago
What would a sound wave do if it traveled from a gas to a
NeTakaya

Answer:

speed up

Explanation:

it's sound, not electromagnetic

5 0
3 years ago
A person walks 9.0 km directly east and then turns left and heads directly north for 12.0 km. What is his displacement from the
Readme [11.4K]

Explanation:

Given that,

A person walks 9.0 km directly east and then turns left and heads directly north for 12.0 km.

We need to find his displacement from the starting position.

We know that,

Displacement = shortest path covered

D=\sqrt{9^2+12^2} \\\\D=15\ km

For direction,

\theta=\tan^{-1}(\dfrac{d_y}{d_x})\\\\\theta=\tan^{-1}(\dfrac{12}{9})\\\\= $$53.13^{\circ}

Hence, this is the required solution.

5 0
3 years ago
Help me please i need this to passsss
mamaluj [8]

Answer:   D

Explanation:     : ⊇

6 0
3 years ago
Noaptea, aflându-te într-o odaie întunecată, observi pe peretele opus ferestrei deplasarea petelor luminoase provenite de la far
alina1380 [7]

Answer:

The car evidently moved in the South-North direction.

Mașina se deplasa în mod evident în direcția Sud-Nord.

Explanation:

English Translation

At night, in a dark room, you notice on the wall opposite the window the movement of light spots from the headlights of a car in a south-north direction. In what direction did the car move?

Solution

Light rays fall obliquely on walls but move in the same direction as the car's direction of travel. And from the question, it is stated that the light rays move in the south-north direction, hence, the car in question, moved in the South-North direction too.

In Romanian/In limba romana

Razele de lumină cad oblic pe pereți, dar se mișcă în aceeași direcție ca direcția de deplasare a mașinii. Și din întrebare, se precizează că razele de lumină se deplasează în direcția sud-nord, prin urmare, mașina în cauză se deplasa și în direcția Sud-Nord.

Hope this Helps!!!

Sper că acest lucru vă ajută!!!

5 0
3 years ago
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