Answer:
Explanation:
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PLS HELP:)
If the incident angle of a light ray is 30 degrees to the normal, what will the reflected angle be?
We measure distances in astronomy in terms of AU which is the distance
between the earth and sun. If the distance is 2AU, it is twice that distance.
What happens to the time period (1 year) for planets when you double the
distance from the sun? (approximately)
Answer:
it took by 2 and made it 2 yrs
Explanation:
wave traveling at 330 m/sec has a wavelength of 4.3 meters. What is the frequency of this wave?
Answer:
76.74 Hz
Explanation:
Given:
Wave velocity ( v ) = 330 m / sec
wavelength ( λ ) = 4.3 m
We have to calculate Frequency ( f ):
We know:
v = λ / t [ f = 1 / t ]
v = λ f
= > f = v / λ
Putting values here we get:
= > f = 330 / 4.3 Hz
= > f = 3300 / 43 Hz
= > f = 76.74 Hz
Hence, frequency of sound is 76.74 Hz.
A mother and daughter are playing catch, as seen in the image below. At which point
during the balls flight path does it have the most potential energy?
O When it leaves the mother's hand.
O When it leaves the little girls hand.
O The moment before either person catches the ball.
O The moment the ball is the highest in the air
Answer:
d the moment the ball is the highest in the air
Explanation:
for a, b, and c the ball is in movement which is kinetic energy. also the higher you are the more potential energy you will have.
Which of these increases the kinetic energy of a car the most?
A. Doubling the mass
B. Doubling the velocity
C. They are the same
Answer:
A. Doubling the mass
Explanation:
Doubling the mass increases the kinetic energy of a car the most.
Doubling the mass increases the kinetic energy of the car.
What happens to a car when the kinetic energy is increased?The energy possessed by a body due to its motion is known as the kinetic energy.The kinetic energy completely depends upon the object's mass and velocity.The unit of kinetic energy is Joule.The formula is K.E = 1/2 mv².The unit of mass is kilogram (kg), then the unit of velocity is meter/ second. (m/s)1 Joule = 1 Kg m²/ s².
As we know the formula, Kinetic energy is equal to half of the product mass and velocity. If mass doubled then kinetic energy also gets doubled.Here, If the car was moving, there will be some kinetic energy as it has the particular mass and speed ( velocity).The kinetic energy of a car increases if the mass gets doubled.Hence, Option A is the correct answer.
Learn more about Kinetic energy,
https://brainly.com/question/4080953
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Read the scenario below and answer the question that follows.
Daniel has been describing situations about being stalked by a government agency that is trying to recover information implanted in his brain. He will also babble incoherently, soil his clothing with excrement, and hold a statue-like pose for hours at a time.
Daniel can most likely be diagnosed with __________ schizophrenia.
A.
paranoid
B.
catatonic
C.
disorganized
D.
undifferentiated
Please select the best answer from the choices provided
A
B
C
D
Answer:
Its D
Explanation:
you're welcome
In this case, Daniel can most likely be diagnosed with undifferentiated schizophrenia (Option D).
What is schizophrenia?Schizophrenia is a mental disorder characterized by disturbance in the cognitive processes of the individual.
Schizophrenia is generally a progressive mental disease where a person suffers emotional disturbance.In conclusion, Daniel can most likely be diagnosed with undifferentiated schizophrenia (Option D).
Learn more about Schizophrenia here:
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A child easily pushes an empty shopping cart around the store. As the cart fills, the child has to exert more force to keep the shopping moving and keep up with his mom. Which law is best supported by this example?
A. Newton's First Law
B. Newton's Second Law
C. Newton's Third Law
D. The law of definite proportions
Answer:
B Newton's second law
Explanation:
An empty grocery cart is easier to move because there is less mass in an empty cart compared to a full cart. Newton's second law state that an object's acceleration depends on the mass of the object and the force applied.
2. Two vectors with magnitudes of 1 meters and 3 meters cannot have a resultant of (5.0 points)
3 meters
4 meters
O meters
2 meters
Answer:
the correct answer is 3 meters
A substance a
wave travels through
is called a(n)
A. Solution
B. Medium
C. Matter
D. Element
B.
C
U
Gas
Answer:
B. Medium
Explanation:
I don't know how to explain it but I already did this lesson in school
In the center of the Milky Way galaxy is a
A The answer is A: black hole .
According to Hooke's law, the force necessary to stretch or compress a spring is proportional to what value?
Answer:
displacement
Explanation:
Hookes Law describes the elastic properties of materials only in the range in which the force and displacement are proportional (displacement = change in length).
can someone help me with this??
Answer:
C
Explanation:
Have a nice day :)
A wave is incident on the surface of a mirror at an angle of 41° with the normal. What can you say about its angle of reflection?
Answer:
From Law of Reflection...
"Angle of Incidence equals angle of reflection"
The angle of reflection is also 41°
Explanation:
Pulling a boat forward into a docking area requires 157J of work. The boat must be pulled a distance of 5.3m. What is the force with which the boat is pulled?
Answer:
29.62 N.
Explanation:
Work = 157 J
Distance = 5.3 m
Force = ?
Work = Force * Distance
157J = Force * 5.3 m
157 J/ 5.3 m = Force
29.62 N = Force (or) Force =29.62 N
What type of liquid would never freeze
Answer:
gas
Explanation:
gasoline will never freeze up
Answer:
Alcohol
Explanation: I'm not sure
Materials that let light pass through them?
Answer:
Materials that allow most all light to pass through them are called transparent. Examples of transparent items are glass, water, and air. Those materials that allow some light to pass through them are called translucent and include things like frosted glass and wax paper.
Answer:
They are transparent
Explanation:
Because they simple allow light to pass though instead of obstructing it
What happens to the gravitational force between two objects when the distance between them increases by 3 times?
Answer:
it decrease by 9 times
Explanation:
If the separation distance between any two objects is tripled (increased by a factor of 3), then the force of gravitational attraction is decreased by a factor of 9 (3 raised to the second power).
An 80kg person falls 60 m off of a waterfall. What is her GPE?
Answer:
The gravitational potential energy of the man
= mass of the man(m) × gravitational acceleration(g) × height (h)
80 Kg × 9.8 m/s^2 × 60 m
80 × 9.8 x 60 ( kg ×m^2/s^2)
47040 Joules (ans)
Hope it helps
What are the types of potential energy?
Answer:
Gravitational, Electrical, Magnetic, elastic potential, and chemical energy
Explanation:
When I did some research, I found 5 types of potential energy, so list the four that either came up in your lesson or are familiar to you:
Gravitational, Electrical, Magnetic, elastic potential, and/or chemical energy.
What types of media can S-waves travel through
Answer:
The second type of body wave is the S wave or secondary wave, which is the second wave you feel in an earthquake. An S wave is slower than a P wave and can only move through solid rock, not through any liquid medium.
free fall is possible on lunar but not on earth surface.Why?
Answer:
The earth has more gravity so that means if you jump out of a plane without a parachute u will die. But the moon has less gravity so u will not die when hit ground. But someone can probally explain it better than me.
More gravity equals more speed in some cases like falling
If you were on a rocket traveling at 99.9% of the speed of light: if someone felt like 1 year had passed on earth how much time would have passed for you in the rocket?
The energy associated
with changing from a
liquid to a vapor?
latent heat, also called the heat of vaporization, is the amount of energy necessary to change a liquid to a vapour at constant temperature and pressure.Apr 6, 2021
A spring with constant 559 N/m is 0.14 meters long when not stretched or compressed. You compress the spring until it is 0.07 meters long. How many joules of elastic potential energy are stored in the compressed spring
Answer:
1.46755 Joules
Explanation:
Applying,
E = 1/2ke²......................... Equation 1
Where E = Elastic potential energy of the spring, k = spring constant, e = extension
From the question,
Gieven: k = 559 N/m, e = (0.14-0.07) meters = 0.07 meters
Substitute these values into equation 1
E = 1/2(599×0.07²)
E = 2.9351/2
E = 1.46755 Joules
Laser light is
a. Polychromatic
b. Invisible
c. Monochromatic
d. None of the above
Answer:
a monochromatic
Explanation:
because now you no need to worry about it and you can just answer in your paper
You push a bike pedal 10cm and the bike moves 100cm. Calculate the Speed ratio ( show all work ) ( use the formula and divide the input distance by the output distance)
Answer:
when you are pushing the pedal you are causing the pedal to move done and then you will move 100cm
Explanation:
10 cm= 100 cm moved so when you move you will move because you are timeing the 10 by 100 to get the spped
A rock is at the top of a 20m tall hill. The rock has a mass of 10kg. How much potential energy does the rock have?
Answer:
Ggghhhjhhhhhbdufdusty
Answer:
2000 Joules
Explanation:
The formula for potential energy is P.E.=mgh (where M is Mass, G is acceleration due to Gravity, and H is Height)
Plug the numbers in to get P.E.=(10kg)(10m/s^2)(20m)
Multiply together to get 2000 joules
Which has a greater kinetic energy, a truck, or a train.
Answer:
a train
Explanation:
the train is longer the longer something is the more power it will have
Electrons flow through the electrolyte from the
electrode.
negative to positive
positive to negative
Answer:
Electrons flow from the positive electrode to the negative electrode through wires
Explanation:
Investigating arson can be a very complicated and complex job, as you learned in the unit! It is also generally a time sensitive matter. Forensic scientists who investigate arson must not only act quickly, but also methodically.
In order to practice how you would respond during an arson investigation, you will be creating a ‘game plan’ or ‘fire investigation timeline’ for what you would do upon arriving at the scene of a fire. Using what you learned in the unit as well as any necessary online research, you will articulate each step that would take place during your investigation. Be sure to number your steps and keep in mind any unexpected situations that might occur.
For example: “First, I would want to find the fire’s origin and look for signs of accelerant use. If I was able to locate the origin, I would do my best to preserve the area. If not, …”
Your ‘timeline’ should be detailed but it does not need to be as extensive as a research paper or essay. You can format your timeline however you like – as an actual timeline, a bulleted list, or short paragraphs as long as you include a clear format like first, second, third, etc. Be sure to include at least six steps.
You can create your ‘timeline’ in a word processing program or a slide presentation. You will be graded on the accuracy of your timeline as well as mechanics and grammar. For more details, see the rubric below.
The Plot Explodes (ongoing activity)
An explosion has occurred in a house down the street from Dr. Fisher’s apartment! Fortunately, the fire was controlled before it could spread to the rest of the block. No one was in the house when the blast occurred. All personal possessions in the house, including a computer and several filing cabinets, have been destroyed.
Property records show that Dr. Fisher’s former patient, Bill, bought the house a year ago. He was still Dr. Fisher’s patient at that time. Apparently, their relationship was strained. Bill had tried to sue Dr. Fisher for malpractice, without success.
When investigators searched the scene, they found bomb fragments with homemade electronics. They traced the electronics to a nearby store where Bill is a customer. They also found a metal cabinet at the scene that survived the blast. Inside the cabinet were several boxes of .38 caliber brass bullets.
So far, investigators have been unable to locate Bill for questioning.
Who do you think bombed Bill’s house, and why? (one to two sentences)
What other types of explosion or fire evidence might you look for within the blast radius? (two to three sentences)
Does this incident change your theory on Dr. Fisher’s murder? Explain. (three to five sentences)
Answer:
First, I would want to find what started the fire and why that's what caused it.
Second, I would take pictures of the area where the fire started if found.
Third, I would interview the witnesses.
Fourth, I would document the scene and write down everything that I see and what the people seen/heard happen.
Fifth, They need to do a full scene investigation.
Sixth, They need to do a follow up investigation.
Who do you think bombed Bill’s house, and why? (one to two sentences) I think Bill bombed his own house because he did not want to be caught. He most likely bombed his house with all his belongings so that he couldn't be traced.
What other types of explosion or fire evidence might you look for within the blast radius? (two to three sentences) Within the blast radius I would search for chemical residue. I would try to find Bill as soon as possible to match the chemical residue on his clothes if there is any.
Does this incident change your theory on Dr. Fisher’s murder? Explain. (three to five sentences) As sad as it is I believe that Dr. Fisher was murdered by his own patient Bill since they had a very hostile relationship. The incident of Bill’s house bombing doesn’t change my theory on Dr. Fisher’s murder, in fact, it further consolidates my theory of Bill being the murderer since Bill wanted to get rid of the evidence so that’s why he bombed his own house.
Explanation: