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Dovator [93]
2 years ago
8

There is no difference between the question and hypothesis steps of scientific inquiry true or false

Physics
2 answers:
WARRIOR [948]2 years ago
7 0
The answer would be false
almond37 [142]2 years ago
3 0

Answer : False

Explanation : Question and Hypothesis is the different step of scientific inquiry. Because question and hypothesis is the known verses unknown.

Hypothesis are used in deductive research . where researcher use logic and scientific assumption to find the solution .

Question is the second step and Hypothesis is the third step of the scientific method.

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What is the overall charge of 1.5 x 10^10 electrons?
Troyanec [42]

Answer: Charge = -2.4x10^-9 Coulombs

Explanation:

The charge of one electron is e = -1.6x10^-19 C

Then, the charge of 1.5 x 10^10 electrons is equal to 1.5 x 10^10 times the charge of one electron:

Here i will use the relation (a^b)*(a^c) = a^(b + c)

Charge = ( 1.5 x 10^10)*( -1.6x10^-19 C) = -2.4x10^(10 - 19) C  

Charge = -2.4x10^-9 C

7 0
2 years ago
Calculate the following expression: 2.36 + 3.38 + 0.355 + 1.06 =
mario62 [17]

the answer wil be 2.36+3.38+0.355+1.06=7.155

5 0
2 years ago
Read 2 more answers
In a series circuit, one of the resistors is replaced with a resistor having a lower resistance value. how does this affect the
Assoli18 [71]
Current will increase. 
8 0
3 years ago
Read 2 more answers
Are there any steps of the rock cycle that do not connect directly to one another
dybincka [34]

Answer:

The three main rock types are igneous, metamorphic and sedimentary.

The three processes that change one rock to another are crystallization, metamorphism, and erosion and sedimentation.

Any rock can transform into any other rock by passing through one or more of these processes. This creates the rock cycle.

6 0
3 years ago
A 4g bullet, travelling at 589m/s embeds itself in a 2.3kg block of wood that is initially at rest, and together they travel at
VARVARA [1.3K]

Answer:

The  percentage of the kinetic energy that is left in the system after collision to that before is 0.174 %

Explanation:

Given;

mass of bullet, m₁ = 4g = 0.004kg

initial velocity of bullet, u₁ = 589 m/s

mass of block of wood, m₂ = 2.3 kg

initial velocity of the block of wood, u₂ = 0

let the final velocity of the system after collision = v

Apply the principle of conservation of linear momentum

m₁u₁ + m₂u₂ = v(m₁+m₂)

0.004(589) + 2.3(0) = v(0.004 + 2.3)

2.356 = 2.304v

v = 2.356 / 2.304

v = 1.0226 m/s

Initial kinetic energy of the system

K.E₁ = ¹/₂m₁u₁² + ¹/₂m₂u₂²

K.E₁ = ¹/₂(0.004)(589)² = 693.842 J

Final kinetic energy of the system

K.E₂ = ¹/₂v²(m₁ + m₂)

K.E₂ = ¹/₂ x 1.0226² x (0.004 + 2.3)

K.E₂ = 1.209 J

The kinetic energy left in the system = final kinetic energy of the system

The percentage of the kinetic energy that is left in the system after collision to that before = (K.E₂ / K.E₁) x 100%

                       = (1.209 / 693.842) x 100%

                        = 0.174 %

Therefore, the  percentage of the kinetic energy that is left in the system after collision to that before is 0.174 %

6 0
3 years ago
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