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Snezhnost [94]
3 years ago
14

Why is density used to determine the identity of matter?

Physics
1 answer:
dedylja [7]3 years ago
4 0
 a substance's density is the same at a certain pressure and temperature, and the density of one substance is usually different than another substance.
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If a particle with a charge of +4.3 × 10−18 C is attracted to another particle by a force of 6.5 × 10−8 N, what is the magnitude
AveGali [126]

Answer: 1.5×10^10 N/C

Explanation:

E= F/q

Where E= magnitude of the electric field

F= force of attraction

q= charge of the given body

Given F= 6.5×10^-8 N

q= 4.3× 10^-18 C

Therefore, E = 6.5×10 ^-8/ 4.3×10^-18

E = 1.5×10^10 N/C

7 0
3 years ago
Xenon hexafluoride was one of the first noble gas compounds synthesized. The solid reacts rapidly with the silicon dioxide in gl
Oxana [17]

Answer:

0,93 atm

Explanation:

For this we will use PV = nRT

P is what we want to find

V = 1 L

n = \frac{8.53}{223.23} = 0,038 moles

R = 0,082 \frac{L atm}{K mole}

T = 25°C = 298,15 K

P * 1 = 0,038 *0,082 * 298,15

P = 0,93 atm

5 0
3 years ago
Where are variables represented in a graph?
m_a_m_a [10]

Answer:variable or dependent values are represented on y axis of graph

Explanation:

4 0
3 years ago
What is the pressure at the very bottom of a lake, which is 432 ft deep? (assume an air pressure of 1.013 ✕ 105 pa.)?
aleksley [76]
Preasure at the bottom would be Air Pressure at the top added to the pressure due to the water height.
so pressure = air pressure + hdg
where,
h = depth of the lake, (432ft into metres)
d = density of water (1000kg/m^3)
g = 9.81 m/s^2 (approx.)
8 0
4 years ago
Define prism and itz colo​
Aleks [24]

Answer:

prism was just a pyramid and if you strike it with white light, the white light then breaks down into 7 colors. (red,orange,yellow,green,blue,indigo,violet)

8 0
3 years ago
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