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cestrela7 [59]
3 years ago
9

Which describes the experiment of becquerel and the curies

Physics
1 answer:
sergiy2304 [10]3 years ago
3 0

The correct answer is D. Becquerel showed that uranium gave off radioactivity, and the Curies discovered other radioactive elements.

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In a mass spectrometer a particle of mass m and charge q is accelerated through a potential difference V and allowed to enter a
Ghella [55]

Answer:

m = B²qR² / 2 V

Explanation:

If v be the velocity after acceleration under potential difference of V

kinetic energy  = loss of electric potential energy

1/2 m v² = Vq ,

v² = 2 Vq / m ----------------------- ( 1 )

In magnetic field , charged particle comes in circular motion in which magnetic force provides centripetal force

magnetic force = centripetal force

Bqv = mv² / R

v = BqR / m

v² = B²q²R² / m²  ------------------------- (2)

from (1) and (2)

B²q²R² / m²  = 2 Vq / m

m = B²q²R² / 2 Vq

m = B²qR² / 2 V

7 0
3 years ago
PLS ANSWER FAST WILL GIVE BRAINLY TIMED TEST
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A=F/m
a=(3000000)/(20000)
a=15 m/s^2
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What’s the difference between the resistance of 1,000 feet of aluminum No. 14 wire and 1,000 feet of No. 14 copper wire? A. The
Lapatulllka [165]

the answer is A. The aluminum has 0.84 ohms more resistance.

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3 years ago
What is the volume of a bar of soap that is 9 cm long, 5 cm wide, and 2 cm high?
GalinKa [24]

Answer:

90cm

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2x5=10

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Read 2 more answers
The removal of rock in solution by acidic rain water________​
Veronika [31]

Answer:

Solution

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Solution is a process in chemical weathering and it is the process of dissolving or removing rock in a solution through the activities of acid rain or solution. Chemical weathering refer to the process where rocks interact with chemical solutions or acid rain which can result in His integration.

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