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KIM [24]
3 years ago
14

Just need help with this one

Physics
1 answer:
GarryVolchara [31]3 years ago
7 0

Answer:

I have no clue

Explanation:

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The periodic table illustrate some of the elements from Hydrogen to Calcium

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Volume of an block is 5 cm3. If the density of the block is 250 g/cm3, what is the mass of the block ?​
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1.25kg

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An electron enters a region of uniform electric field with an initial velocity of 64 km/s in the same direction as the electric
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Answer:

1.) 11 km/s

2.) 9.03 × 10^-5 metres

Explanation:

Given that an electron enters a region of uniform electric field with an initial velocity of 64 km/s in the same direction as the electric field, which has magnitude E = 48 N/C.

Electron q = 1.6×10^-19 C

Electron mass = 9.11×10^-31 Kg

(a) What is the speed of the electron 1.3 ns after entering this region?

E = F/q

F = Eq

Ma = Eq

M × V/t = Eq

Substitute all the parameters into the formula

9.11×10^-31 × V/1.3×10^-9 = 48 × 1.6×10^-19

V = 7.68×10^-18 /7.0×10^-22

V = 10971.43 m/s

V = 11 Km/s approximately

(b) How far does the electron travel during the 1.3 ns interval?

The initial velocity U = 64 km/s

S = ut + 1/2at^2

S = 64000×1.3×10^-6 + 1/2 × 8.4×10^12 × ( 1.3×10^-9)^2

S =8.32×10^-5 + 7.13×10^-6

S = 9.03 × 10^-5 metres

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3 years ago
The decomposition of water into hydrogen gas H2 and oxygen gas O2 can be modeled by the balanced chemical equation
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This balanced chemical equation represents the decomposition of water into hydrogen gas and oxygen gas



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