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3 years ago

Esters are commonly used as artificial ___

Physics

2 answers:

Vera_Pavlovna [14]3 years ago

6 0

Answer:

Fragrance

Explanation:

Odor of Ester:

banana

citrus,orange

oil of wintergreen

raspberry

pear

pineapple

apple

Elza [17]3 years ago

4 0

Answer:

Fragrances

They are commonly used as fragrances and found in essential oils and pheromones.

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Resistance and resistivity are related by a: 1.factor that is dependent on the length of the material 2.factor that is dependent

luda_lava [24]

Answer:

1. factor that is dependent on the length of the material.

2. factor that is dependent on the area of the material

Explanation:

Resistance R is directly proportional to its length L of an object and it is inversely proportional to the crossectional area of that object.

Mathematically, this is represented as:

a) Resistance R is directly proportional to its length L of an object

R ∝ L ......... Equation 1

b) Resistance R is inversely proportional to the crossectional area (A) of an object

R ∝ 1/A ............ Equation 2

Combining the two equations together, we have:

Resistance R is directly proportional to its length L of an object

R ∝ L/A .......... Equation 3

Resistivity of a material is the natural or inherent or intrinsic property that a material has. The Resistivity of a material is not dependent on the length or crossectional area of such material. It is only temperature dependent.

The resistance of a material is also dependent on the resistivity of the material. This means the resistance of a material is directly proportional to the resistivity of the material.

R ∝ ρ........Equation 4

Combining Equation 4 and 3 together, we have:

R = ρL/A

Where:

R = Resistance

ρ = Resistivity

L = Length of the material

A = Crossectional area of the material

Resistance and resistivity are related by a factor that is dependent on the length of the material a factor that is dependent on the area of the material

3 0

4 years ago

Manu took a pebble and a sheet of paper both weigh one gram. His friend told that if we drop both at the same time, the pebble w

Nata [24]

Answer: friction has no role to play in this case. because friction usually occurs between to parts which come in contacts. examples (a)our joints in the human body (b)two mechanical parts (shafts).

Explanation:

However what this topic relates to is gravity. The pebble and paper both weigh one gram, but have different density this is the sole reason why if both are drop from same height the pebble would reach the ground faster than the paper because it is more denser. unlike the paper with a lesser density which would take a longer time to reach the ground.

3 0

3 years ago

Two objects of mass m move in opposite directions toward each other. The green object moves at velocity v, and the blue object m

NeX [460]

. The velocity of a mass attached to a spring is given by v = (1.5 cm/s) sin(ωt + π/2), ..... Which of the following is the motion of objects moving in two dimensions

5 0

4 years ago

Read 2 more answers

The current through a circuit is 0.05 Amps. How many Coulombs of charge pass

Mazyrski [523]

The answer to this question is:

Simply it can be calculate using the equation Q=It, here Q is the charge in coulombs , I current in Amps and t is the time in seconds.

so the answer is Q = 10*60 = 600 coulomb.

5 0

3 years ago

A plane flies from base camp to lake a, 205 km away in the direction 20.0Â° north of east. after dropping off supplies it flies

miss Akunina [59]

Draw a diagram to illustrate the problem as shown in the figure below.

Camp A is 20° north of east from the camp, therefore
m∠CAB = 80°
where C => base camp.

Let d = distance from lake B to the base camp, at x° west of south.
Apply the Law of Cosines to determine d.
d² = 205² + 175² - 2*205*175*cos80⁰
= 6.0191 x 10⁴
d = 245.338 km

Apply the Law of Sines to obtain
$\frac{sin(x+30)}{205}= \frac{sin80^{o}}{245.338}\\ \\ sin(x+30)=( \frac{205}{245.338})sin80^{o}= 0.8229$
x+30 = sin⁻¹ 0.8229 = 55.4°
x = 25.4°

Answer:
The distance from lake B to base camp is 243.3km (nearest tenth).
The direction is 25.4° west of south.

7 0

3 years ago