Answer:
In 1836, Scottish chemist, James Marsh, did the first application of this forensic science technique. This test was actually used successfully in a murder trial at that time.
Explanation:
I hope that is what you were asking
Answer: London , United Kingdom
Explanation:
In 1836, Scottish chemist, James Marsh, did the first application of this forensic science technique.
What is the actual depth of rainfall shown in this rain gauge?
A.20 cm
B.30 cm
C.1 cm
D.10 cm
Answer:
The answer is D.
Explanation:
As shown in the picture, the measuring tube is collecting 10 cm of rain.
Answer:
D. 10cm
Explanation:
If you look closely, you can see the water is at the 10cm mark.
Psychological researchers study genetics in order to better understand the
that contributes to certain behaviors.
D
biology
neurology
O psychology
physiology
Answer: A
Biology
Explanation:
Psychological researchers study genetics in order to better understand the biological factors that contribute to certain human behaviour.
Because bodies with a particular genetic code are related in some certain behavioral forms and actions such as thought, feelings, attitude e.t.c
How have scientists played an important role in history?
A. Scientists control most governments in the world.
B. Scientific discoveries have changed the world.
C. Most political decisions are made by scientists.
D. Historians are mostly scientists.
Answer:
B
Explanation:
B makes the most sense in my opinion. because different discoveries have influenced many factors of the world
Answer: B.
Explanation:
A scientific discovery that has changed the world is Edward Jenner’s vaccine against the smallpox. His vaccine has been further modified to combat other diseases.
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A chemical __ _ is a written method of representing the
changes that occur in a chemical reaction.
Answer:
chemical equation
Explanation:
The general form of a chemical equation is: Reactants → Products. The reactants in a chemical equation are the substances that begin the reaction, and the products are the substances that are produced in the reaction
What must be the initial velocity of a rocket that accelerates for 10.2 seconds at 5.31 m/s2 and covers 3912 m?
A. 276 m
B. 356 m/s
C. 107 m/s
D. 384 m/s
Answer: B
Explanation: 3912=10.2v +1/2(5.31)(10.2)^2 -> v≈ 356.45 (B)
What two charges could increase electrical force between objects
Answer:
From Coulomb’s Law of electrostatics the force of attraction or repulsion between two charged bodies is inversely proportional to the square of the distance between their two centers.
If the distance between them is doubled then the force is one-fourth of the original force.
If the distance between them is halved then the force is four times than the original force.
Explanation:
Order the steps to describe how information is sent. A signal is produced. A signal is seen, heard, or used. Radio waves are modulated and amplified. Radio waves are amplified and demodulated.
Answer:
A signal is produced.
Radio waves are modulated and amplified.
Radio waves are amplified and demodulated.
A signal is seen, heard, or used.
Explanation:
Communication is the method of transmitting information between two or more participants. A radio communication network is a set of static and wireless radio equipment developed to facilitate an entity by enabling particular modes of communication such as one-to-many and one-to-one communication. Radio waves are being used to transmit information spatially from the sender to receiver, by modulating the radio signal in the transmitter. The above steps explains the loop of the radio communication system.
Answer:
A signal is produced- 1
A signal is seen, heard, or used- 4
Radio waves are modulated and amplified- 2
Radio waves are amplified and demodulated- 3
Explanation:
got is correct on edge 2020
what is the frequency of a ocean wave that is traveling at a speed of 45 m/s if it has a wavelength of 3 meters? please show work
Answer:
15 miles per hour
Explanation:
45/3=15
Answer:
15 Hz or Hertz
Explanation:
To find the frequency of a wave, divide the velocity by the wavelength.
f=velocity/wavelength
We know the ocean wave is traveling at 45 meters per second, and it has a wavelength of 3 meters. Therefore, the velocity is 45 m/s and the wavelength is 3 m.
velocity=45
wavelength=3
Substitute these values into the formula.
f=45/3
Divide 45 by 3
f=15
Add appropriate units. Frequency uses Hertz or Hz.
f=15 Hertz
The frequency of the ocean wave is 15 Hertz.
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Tricep extensions work which of the following muscles:
Biceps
Soleus
Triceps
all of the above
Answer: Its biceps
Explanation: the extension of the triceps are the biceps.
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Explain why gamma rays are the most dangerous of all electromagnetic waves.
Answer:
The extremely high energy of gamma rays allows them to penetrate just about anything. They can even pass through bones and teeth. This makes gamma rays very dangerous. They can destroy living cells, produce gene mutations, and cause cancer
