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qaws [65]
3 years ago
14

When is a hypothesis developed in the scientific method?

Physics
2 answers:
ivanzaharov [21]3 years ago
7 0

Answer:

aren't there pics ?

Explanation:

shtirl [24]3 years ago
6 0

Answer:

D. After a question is when you do your hypothesis. I've done many science projects so I know this is right

Explanation:

The hypothesis is written as a prediction of the outcome of the experiment

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A first year student projected a farm business brochure to a farmer at 30 degrees to horizontal. calculate the maximum height at
IceJOKER [234]

<u>Answer:</u>

Maximum height = 2040 m

<u>Explanation:</u>

We can solve the problem using kinematics.

Consider the vertical motion of the object and use the equation:

\boxed{v^2 = u^2 + 2as}

where:

• v = final velocity      (0 m/s, because when the object is at max. height, it has no vertical velocity)

• u = initial velocity    (400sin30° m/s ⇒ vertical component of 400 m/s at 30° to horizontal)

• a = acceleration      (-9.81 m/s²; considering upward acceleration to be negative)

• s = displacement    (? m; this represents the max. height of the object),

Substitute the values into the equation and solve for <em>s </em>:

0^2 = (400 sin (30 \textdegree))^2 + 2(-9.81)(s)

⇒ 2(9.81)(s) = (400 sin (30 \textdegree))^2

⇒  s = 2040 \space\ m     (3 s.f.)

6 0
2 years ago
Tectonic plates move due to _____ forces.
wel
<span>Tectonic plates move because they are floating on top of the liquid mantle. The mantle itself moves due to convection currents: hot rock rises, gives off some heat, then falls. This creates vast swirls of moving liquid rock under the crust of the earth, which jostles the plates of crust on top.
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6 0
3 years ago
Read 2 more answers
Jeremy was asked to describe the impact of humans on the carbon cycle. He answered: "When people
zmey [24]

Answer:

Humans add carbon dioxide to the atmosphere when they burn fuel in factories and other biomass sources. Humans take in carbon from the food they eat from the soil and return it back to the soil through waste products and decomposition.

Explanation:

When humans add carbon into the atmosphere the main contributors are burning of substances like fuels and biomass and from eating.

6 0
3 years ago
The capacitance of a capacitor depends on what?​
bonufazy [111]

Answer:

The capacitance of a capacitor depends on the charge and voltage of a system. It is also dependent, if present, on the dielectric as well.

General Formulas and Concepts:
<u>Gauss's Law</u>

Capacitance Formula: \displaystyle C = \frac{Q}{V}

  • <em>Q</em> denotes charge
  • <em>V</em> denotes voltage

Dielectric Capacitance Formula:  \displaystyle C = \kappa C_0

  • <em>C₀</em> denotes original capacitance
  • <em>κ</em> denotes the dialectic constant

Explanation:

A <u>capacitor</u> <em>stores</em> charge when run through an electrical current. The <u>capacitance</u> is <em>how much </em>charge a capacitor can hold.

We can define the relationship of capacitance by using the formula. Capacitance is <em>inversely proportional</em> to the potential energy, or <u>voltage</u>, of the system. Therefore, you will need to know what the <u>charge</u> Q of the system as well has voltage V in order to find the capacitance.

If there is a dielectric involved inside the capacitance, you also must incorporate the value of the <u>dielectric constant </u>into your capacitance. A dielectric is <em>directly proportional </em>to the capacitance; the bigger the dielectric constant, the bigger capacitance, as denoted in our equation.

Topic: AP Physics C - EMAG

Unit: Gauss's Law

5 0
3 years ago
How many atoms are in 2Mg3(PO4)2?
gogolik [260]

Answer:

13 atoms

Explanation:

Look at the subscripts.

“Mg₃” means that there are 3 magnesium atoms; “PO₄” means that there is 1 phosphorus atom and 4 oxygen atoms. But note that the PO₄ group has a subscript too: 2. This multiplies the atom count by 2, so you have 2 phosphorus atoms and 8 oxygen atoms.

3 + 2 + 8 = 13

(hope this helps can i plz have brainlist :D hehe)

8 0
3 years ago
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