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Irina-Kira [14]
2 years ago
11

A stone has a volume of 0.50 cm³ and a mass of

Physics
1 answer:
Dafna1 [17]2 years ago
8 0

Answer:

ρ = M / V = 2 g / .5 cm^3 = 4 g/cm^3

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Give short definitions for the following terms: 1. All Atomic number 2. Mass number 3. Atomic weight 4. Isotope 5. Natural abund
son4ous [18]

Explanation:

Hello ! Let's solve this!

1-atomic number: the atomic number is the number of protons that the atom has

2-mass number: is the amount of protons plus the amount of neutrons in the atom

3-atomic weight: average of the masses of an atom per 1/12 of the mass of carbon

4-isotope: it is the same element that has the same number of protons but a different number of neutrons

5-natural abundance: measures the amount of isotopes of an element in nature

6-unit of atomic mass: (uma) is a unit that is equivalent to 1/12 of the carbon atom

8 0
3 years ago
List some ways houses would be built differently if gravity were much stronger or much weaker ?two
tia_tia [17]

Answer:

If gravity were stronger, houses and buildings would have to be more sturdy so they do not get crushed to the ground. If gravity were weaker, buildings and houses would have to be built stronger so they do not float away.

Hope this helps you!

8 0
3 years ago
Read 2 more answers
A 5.2 cm diameter circular loop of wire is in a 1.35 T magnetic field. The loop is removed from the field in 0.29 sec. Assume th
Katyanochek1 [597]

Answer:

9.88 milivolt

Explanation:

Given: diameter d = 5.2 cm

magnetic field B_1 = 1.35 T, final magnetic field B_2 =0 T

t = 0.29 sec.

we know emf =  - dΦ/dt

and flux Φ = BA

A= area

therefore emf ε = -A(B_2-B_1)/Δt

=-\pi(d/2)^2\frac{B_2-B_1}{\Delta t} \\=-\pi(0.052/2)^2\frac{0-1.35}{0.29} \\=98.8\times10^4\\=9.88 mV

3 0
3 years ago
Half life of a given sample of radium is 22 years the sample will reduce to 25% of its original value after
makkiz [27]

Answer:

44 years

Explanation:

Use half life equation:

A = A₀ (½)^(t / T)

where A is the final amount,

A₀ is the initial amount,

t is time,

and T is the half life.

0.25 A₀ = A₀ (½)^(t / 22)

0.25 = (½)^(t / 22)

t / 22 = 2

t = 44

3 0
3 years ago
Hellp.....its physics
blondinia [14]

Answer:

i know it

Explanation:

18.493 its the answer

brainliest pls

4 0
3 years ago
Read 2 more answers
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