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Ivahew [28]
3 years ago
12

The change in isotopes over time due to the emission of radioactive particles is known as

Physics
2 answers:
Oxana [17]3 years ago
5 0
The change in isotopes over time due to the emission of radioactive particles is known as A. <span>A. radioactive decay. Radioactive decay is possible to radioactive materials such as uranium and is characterized by its half-life which the amount of time needed to decrease the amount of the material by one-half</span>
Andreyy893 years ago
5 0
I Believe it's A. Radioactive Decay.
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Answer:

Travelled 18 km, they are 6 km from home.

Explanation:

12/2 (halfway) is 6km. So, 6 + 12 would be 18 km, total amount travelled. The total distance of the trip would be 24 km (12 km out, 12km back) if they travelled 12+6 (18km) then they only have 6 km more to go.

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A boy and his younger sister are at the zoo on a hot day. They each buy a cold lemonade. The boy buys a large lemonade, and his
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4 years ago
Describe a scientific method
laila [671]

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3 years ago
Calculate the recoil speed of a 1.4 kg rifle shooting 0.006 kg bullets with muzzle speed of 800 m/a.3.43 m/s
Angelina_Jolie [31]

Answer:

a) 3.43 m/s

Explanation:

Due to the law of conservation of momentum, the total momentum of the bullet - rifle system must be conserved.

The total momentum before the bullet is shot is zero, because they are both at rest, so:

p_i = 0

Instead the total momentum of the system after the shot is:

p_f = mv+MV

where:

m = 0.006 kg is the mass of the bullet

M = 1.4 kg is the mass of the rifle

v = 800 m/s is the velocity of the bullet

V is the recoil velocity of the rifle

The total momentum is conserved, therefore we can write:

p_i = p_f

Which means:

0=mv+MV

Solving for V, we can find the recoil velocity of the rifle:

V=-\frac{mv}{M}=-\frac{(0.006)(800)}{1.4}=-3.43 m/s

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a) 3.43 m/s

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3 years ago
What does buoyancy depend on 
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