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3 years ago

Predicting future events in a person's life based on the lines on the palm of the hand is an example of (2 points)

Physics

2 answers:

igomit [66]3 years ago

8 0

Answer:

Pseudoscience

Explanation:

Predicting future events in a person's life based on the lines on the palm of the hand is an example of Pseudoscience. A pseudoscience is a false science that makes claims based on faulty or nonexistent scientific evidence and often characterized by contradictory, excessive claims, etc. These types of Pseudoscientific beliefs are common due to widespread "scientific illiteracy among different societies.

Monica [59]3 years ago

6 0

Answer:

pseudoscience

Explanation:

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The activation energy of a reaction going on its own is 20 kj. If the reaction was treated with a catalyst, which would most lik

storchak [24]

Answer:

15 kJ

Explanation:

We need to know the following;

what is activation energy?

Activation energy is the minimum energy required by reactants for a chemical reaction to take place.

What are catalysts?

Catalysts are molecules or substances that speed up the rate of a chemical reaction.

In other words, catalysts increase the speed at which products are formed from reactants.

How do catalysts speed up reactions?

Catalysts speed the rate of chemical reactions by lowering the activation energy of the reactants.
When activation energy is lowered, reactants require less energy for the reaction to occur which easily achieved making the reaction proceed faster.
Therefore, in presence of a catalyst, the new activation energy should be lower than the initial value of activation energy.

7 0

3 years ago

Read 2 more answers

A particle of mass 10 g and charge 72 μC moves through a uniform magnetic field, in a region where the free-fall acceleration is

sineoko [7]

Answer:

$-0.07163\hat k\ T$ or 0.07163 T into the page

Explanation:

m = Mass of particle = 10 g

a = Acceleration due to gravity = -9.8j m/s²

v = Velocity of particle = 19i km/s

q = Charge of particle = 72 μC

B = Magnetic field

Here the magnetic and gravitational forces on the particle are applied in the opposite direction so,

$F_b=F_g$

$F_b=qvBsin\theta\\\Rightarrow F_b=qvBsin90\\\Rightarrow F_b=72\times 10^{-6}\times 19000B$

$F_g=ma\\\Rightarrow F_g=0.01\times -9.8$

$72\times 10^{-6}\times 19000B=0.01\times -9.8\\\Rightarrow B=\frac{0.01\times -9.8}{72\times 10^{-6}\times 19000}\\\Rightarrow B=-0.07163\hat k\ T$

The magnetic field is 0.07163 T into the page

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3 years ago

Analyze the data to identify the mathematical relationship between the

koban [17]

Answer:

C.) Wave B has about 2.25 times more energy than wave A

Explanation:

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2 years ago

A uniformly charged sphere has a total charge of 300uc and a radius of 8cm. Find the electric field density at A point 16cm from

s2008m [1.1K]

E = kQ 

(r + h)²

where,

k = 9 × 10^9Nm²C^-2

Q = total charge, 300uC = 300 × 10^ -6C

r = 8 × 10^ -2m

h = 16 × 10^ -2m

then,

E = 9e9 * 300e^-6 

(8e^-2 + 16e^-2)²

E = 4687500N/C

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2 years ago

What is the name of the space telescope in low earth orbit that was launched in 1990?

Mrrafil [7]

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3 years ago