A jury acquitted him of starting two fires in Fresno but convicted him of several fires that prosecutors claimed he started on his way home to Glendale.
Most serial arsonists only set fire to a place once. Nearly half of the samples consumed alcohol before lighting. The most common motive for arson was revenge followed by rioting vandalism profit and other crime cover-ups. Firefighters' motives for arson range from excitement and thrill to the desire to cover up a crime.
Excitement-based motivation indicates that the firefighter wanted to be seen as a hero. Gasoline is one of the most commonly used fire promoters because it is efficient, easy to ignite, and can usually be purchased and transported without question. The second most common fuels are thinner and kerosene.
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What is the motion of a rolling ball?
The motion of the ball is translational and rotational.
Rotational motion because the ball is continuously rolling along its axis.
Translational motion because the ball is also moving forward and not just rotating at a fixed place.
But all these have a force acting on it that affects the motion of the ball.
The forces are :
"Normal Force,"
"Gravity Force,"
"Force Friction,"
"Applied Force."
It is due to the result of the friction, which causes the ball to stop.
The reason the ball rolls is due to the force that is imparted to it.
Therefore, the motion of the ball is fully under the control of forces acting on all the sides of the ball.
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joey is riding in an elevator which is accelerating upwards at 2.0 m/s2. The elevator weighs 300.0 kg, and Joey weighs 60.0 kg. What is the tension in the cable that pulls the elevator upwards?
A) 4200 N
B) 9800 N
C) 3700 N
D) 5200 N
The tension in the cable that pulls the elevator upwards with an acceleration of 2.0 m/s² is 4200 N. The right option is A) 4200 N.
What is tension?Tension is defined as the force transmitted through a rope, string or wire when pulled by forces acting from opposite sides.
To calculate the tension in the cable, we use the formula below.
Formula:
T = mg+ma............ Equation 1Where:
T = Tension in the cablem = Mass of the Joey and the elevatora = Accelerationg = Acceleration due to gravityFrom the question,
Given:
m = (300+60) = 360 kga = 2 m/s²g = 9.8 m/s²Substitute these values into equation 2
T = (360×9.8)+(360×2)T = 3528+720T = 4248 NT ≈ 4200 to the nearest hundred.Hence, the tension in the rope is 4200 N, the right option is A) 4200 N.
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Hey can y’all help me real quick
Answer:
Speed
distance
distance
time
average
speed
dividing
distance
time
What is the most common cause to food born illnesses?
1.Biological hazards (people working while ill, not washing hands, improper temperature control)
2.Chemical hazards (poisonous substances like soaps, sanitizers, or pesticides)
3.Physical hazards (broken glass, jewelry, bandages, or fingernails)
Option 1. Biological hazards (people working while ill, not washing hands, improper temperature control), is the most common cause to food born illnesses.
Infectious organisms or their toxins are the maximum commonplace reasons for food poisoning. Food poisoning symptoms may additionally include cramping, nausea, vomiting, or diarrhea. Maximum meal poisoning is slight and resolves without treatment. ensuring ok hydration is the maximum vital element of treatment.
Foodborne infection (food poisoning) is a result of consuming contaminated meals, beverages, or water and may be a diffusion of microorganisms, parasites, viruses, and/or pollution. lots of those pathogens can be received thru extra than simply food, drinks, or water.
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5. What energy transformations occur when a person turns on a lightbulb by
connecting its circuit to a battery? List and describe transformations involving three
types of energy. (3 points)
When a person turns on a lightbulb by connecting its circuit to a battery then chemical energy is converted to electrical energy which is in turn converted to heat energy.
How is energy transformed when lightbulb is connected to battery?Initially chemical energy is stored in the battery. When the circuit is completed with a lightbulb then the chemical energy gets converted into electrical energy. And then electrical energy changes in the light bulb into heat energy.
When the terminals of the battery are connected through the light bulb, a pathway is created for the flow of charge. Negatively charged electrons flow from the - to the + terminal through the bulb. This charge flow converts chemical potential energy into electrical energy.
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Find the acceleration of a 10 kg bucket of water that is lifted with a force of 200 Newtons.
A) 10 m/s^2
B) 9 m/s^2
C) 6 m/s^2
Answer:
A) 10 m/s^2
Explanation:
1KG=10
so 10kg bucket = 100N
1) find fnet by finding the sum of the vertical forces (gravity is going down so its negative)
2) fnet = 200N (Lift) - 100N (Bucket)
fnet = 100
fnet = mass × acceleration
3) 100 = 10a
answer: 10 = a
sorry this is very rushed.
when accessing each character in a string, such as for copying purposes, you would typically use a while loop. True / False
The object assigned is used to copy all the data, and when accessing each character in a string, such as for copying purposes, you would typically use a while loop is a false statement.
What is a while loop?Until the provided condition (there is only one) evaluates to false, a while loop iterates indefinitely. Your loop will then end, and the execution process will continue. While a conditional expression is evaluated as true, its statements are carried out.
The copy variable is a pointer to the same item and points to it. Basically, this object with the values a: 1, b: 2, is saying that there are now two methods to contact me. You must go through either the obj variables or the replica variable to reach me, and whatever you do to me through these routes (gateways) will have an impact on me.
Therefore, the object assigned is used to copy all the data, and when accessing each character in a string, such as for copying purposes, you would typically use a while loop is a false statement.
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Which land feature is marked on the map by the $X$ ?
A. valley
B. plain
C. hill
D. mountain
Mountain is the land feature is marked on the map as x.
What features are shown on a topographic map?Simply described, a topographic map is a two-dimensional depiction of a piece of the earth's three-dimensional surface. Topographic maps are used to depict the land surface since topography is the form of the land surface. Since topographic maps depict how the earth's surface is shaped, they are useful tools in geologic investigations. By utilizing contour lines, cartographers are able to depict the three-dimensional land surface on a flat sheet of paper, making it possible to estimate both horizontal distances and vertical heights from a topographic map.A topographic map is easily recognized by the contour lines that depict the form of the Earth's surface.To unite locations of equal height on the land surface above or below a reference surface, such as mean sea level, contours are imaginary lines.Learn more about Topographic map refer to :
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Check all of the following combinations of elements that could
form a covalent bond.
O and H
Na and Cl
Ca and
N and Cl
C and O
Following combinations of elements that can form a covalent bond are:
N and Cl
C and O
What are covalent bonds?Elements with very high ionization energies cannot transfer electrons, and elements with very low electron affinities cannot accept electrons. Atoms of such elements tend to share electrons with atoms of other elements or with other atoms of the same element, and both atoms acquire an octet arrangement in their respective valence shells, achieving stability increase. Such associations by sharing electron pairs between different species or the same species are known as covalent bonds.
Covalent bonds can be achieved in two ways.
By sharing electrons between atoms of the same kind. Formation of H2, Cl2, O2, etc. By sharing electrons between atoms of different types, such as the formation of CH4, H2O, NH3 etc.To know more about covalent bonds visit:
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A particle leaves the origin with a velocity of 7.2 m/s in the positive y direction and moves in the xy plane with a constant acceleration of (3.0 - 2.0) m/s2. At the instant the particle moves back across the x axis (y = 0), what is the value of its x coordinate?
When the particle reaches its maximum positive x coordinate, the displacement is 11.62m.
What is acceleration ?The rate at which speed of velocity change over time is referred to as acceleration. When a point and object speeds or decelerates, it is moving straight ahead. Motion on a circular accelerates even while the speed is constant so because orientation is constantly changing.
Briefing:The particle's displacement is computed as follows;
v² = u² + 2as
where;
a is acceleration
a = √(3² - 2²)
= 2.23 m/s²
0 = u² + 2as
s = -u²/2a
s = -(7.2²)/(2 x 2.23)
s = -11.62 m
When the particle reaches its maximum positive x coordinate, the displacement is 11.62m.
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Water is stored in an artificial lake created by a dam (the figure below). The water depth is 41 m at the dam, and a steady flow rate of 35 m3/s is maintained through hydroelectric turbines installed near the base of the dam.
a) How much electrical power can be produced?
When the water level at the dam is 41 m, 1435J of electrical power can be generated if hydroelectric turbines are placed close to the base of the dam and a constant flow rate of 35 m3/s is maintained.
What different forms of electricity are there?There are two kinds of electricity, including: DC power is created by DC sources like generators, batteries, battery storage, etc. and is defined as the result of voltage and current. AC power is a term used to describe a charge flow that periodically changes its direction.
What is referred to as electricity?The pace at which work is completed or energy is changed inside an electrical circuit is known as the electric power definition. It is a way to quantify how much energy is consumed over a certain period of time. Electrical power is the term used in physics to describe the rate at which an electrical circuit transfers electrical energy per unit of time.
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Luka Doncic throws a ball from a 3-point line distance (6.75 m). The basket is at height
3.05 m. The ball leaves his hands at height 2.80 m at an angle of 45◦ and velocity 8.3 m/s.
Will he score the 3 points?
Luka Doncic will score the 3 points if he throws a ball from a 3-point line distance (6.75 m) and if the basket is at height of 3.05 m.
Resolving u into its vertical and horizontal components
ux = u cos θ
ux = 8.3 cos 45°
ux = 5.9 m / s
uy = u sin θ
uy = 8.3 sin 45°
uy = 5.9 m / s
H = 3.05 - 2.8
H = 0.25 m
T = uy + √ uy² - 2 g H / g
T = 5.9 + √ 5.9² - ( 2 * 9.8 * 0.25 ) / 9.8
T = 5.9 + √ 34.81 - 4.9 / 9.8
T = 5.9 + 5.47 / 9.8
T = 11.37 / 9.8
T = 1.16 s
R = ux T
R = 5.9 * 1.16
R = 6.8 m
Distance of three point line from the basket = 6.75 m = 6.8 m = R
Therefore, Luka Doncic will score the 3 points
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What causes an object to slowdown or speed up
Answer:
A force can speed up or slow down an object. A force can change the direction in which an object is moving. A bigger force on an object will produce a bigger change in the motion. A heavier object requires a larger force than a lighter object in order to undergo the same change in motion.
Please help me <3
What is measured in Newtons?
Both force and weight (the force of gravity)
Acceleration
Volume
Mass
Answer: both force and gravitational force
Explanation:
The total quantity of an economy's final goods and services demanded at different inflation rates is
A) the aggregate supply curve.
B) the aggregate demand curve.
C) the Phillips curve.
D) the aggregate expenditure function.
The total quantity of an economy's final goods and services demanded at different inflation rates is the aggregate demand curve.
What is the aggregate demand curve?
The total amount spent in an economy on domestic goods and services is known as aggregate demand, or AD. AD is technically what economists refer to as total planned expenditure. Consider aggregate demand to be total spending for the time being; we'll go into more detail about it in later articles.
All four elements of demand are included in aggregate demand:
ConsumptionInvestmentFederal spendingNet exports are imports less exports.The price level is one of several variables that affect this desire. The entire amount spent on domestic products and services at each price level is displayed on an aggregate demand curve.
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show that angular velocity w=2π2
Hence the angular velocity w=2π2/T.
The angular velocity of an object with respect to some extent is a degree of the way rapid that item actions through the point's view, within the feel of the way speedy the angular function of the item modifications. An instance of angular pace is a ceiling fan. One blade will whole a complete round in a certain amount of time T, so its angular speed with respect to the middle of the ceiling fan is twoπ/T.
Calculation:-
for a circular motion, the distance of the complete circle = 2πr
and time period = T
so angular velocity = 2π/T
There are 3 formulations we will use to find the angular pace. the primary comes instantly from the definition. The angular pace is the rate of alternate of the position attitude of an object with respect to time, so w = theta / t, in which w = angular pace, theta = position attitude, and t = time.
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A ball at the end of a string of length 2m rotates at a constant speed in a horizontal circle. It makes 7 rev/s.
What is the period of the ball’s motion? Answer in units of s.
second part
What is the frequency of the motion? Answer in units of Hz.
third part
What is the ball’s angular velocity? Answer in units of rad/s.
The time period of the ball’s motion will be 0.14 seconds
The frequency of the motion will be 7 Hz
The ball’s angular velocity will be 43.96 rad/second
given
a) frequency = 7 rev / s = 7 Hz
time period = 1 / frequency
= 1 / 7 = 0.14 seconds
The period of the ball’s motion will be 0.14 seconds
b) The frequency will be 7 Hz
c) The ball’s angular velocity = 2 * π * f
= 2 * 3.14 * 7 = 43.96 rad/second
The ball’s angular velocity will be 43.96 rad/second
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A block is launched with initial speed 2.2 m/s up a 35° frictionless ramp
How far up the ramp does it slide?
When a block is launched with initial speed 2.2 m/s up a 35° frictionless ramp then ramp slides up to 0.43m.
What is work energy theorem?The work-energy theorem explains that net work done by the forces on an object is equal to change in its kinetic energy.
We can also say that work done on a body is equal to the net change in its energy.
Given angle = 35°
initial speed = 2.2m/s
Applying work - energy theorem,
Wgravity = KE
-m *g *sin ∅ * S =1/2* (0- 2.2²)
-9.81*sin 35° *S= 1/2 *(0- 2.2² )
S= 0.43m
Ramp slides up to 0.43m.
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A 50-N applied force(30 degrees to the horizontal) accelerates a 10 kg box across a horizontal sheet of ice. Ben says normal force is 50N, Don says 75N and Warren says 100N who is correct?
The normal force on the 10 Kg box is 50 N. The one with the correct statement is Ben.
Howdo I determin the normal force?We know that normal force acting on an object is given as:
N = mg
Where angle projection is involve, it is written as:
N = mgSineθ
Where
N is the normal force m is the massg is the acceleration due to gravityθ is the angleNow, we shall calculate the normal force, to see who is right amongst the boys. This is shown below:
Mass (m) = 10 KgAngle (θ) = 30 degreesAcceleration due to gravity (g) = 10 m/s²Normal force (N) =?N = mgSineθ
N = 10 × 10 × Sine30
N = 100 × 0.5
N = 50 N
Thus, the normal force is 50 N. Therefore, Ben is correct!
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Question 2 (1 point)
Doctors tested a patient to find out what molecules were in her cells. Her cells contained normal levels of oxygen moleculs, low levels of amino
acid molecules, and low levels of glucose molecules. Will this patient be able to exercise normally?
Yes, as long as her cells have enough oxygen, her body will be able to exercise.
No, her cells need glucose to react with oxygen to release enough energy to exercise.
No, her cells need amino acids to react with oxygen to release enough energy to exercise.
No, her cells need glucose to react with amino acids to release enough energy to exercise.
No, her cells need glucose to react with oxygen to release enough energy to exercise. Option B.
Oxygen, glucose, and amino acid molecules from air and food are the fuel your body needs to function every day. Without these molecules, cells cannot do what they need to do to keep the body healthy. Our cells cannot use starch as is. Before starch enters cells, it must be broken down into individual glucose molecules.
The glucose molecule is then transported inside the cell and used to facilitate the cell's respiratory response. Athletes believe that all they need to do is eat a variety of foods and train because their bodies simply need different types of food molecules to function properly. Living organisms mainly use these two types of molecules, glucose, and ATP, as chemical energy.
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The gas exchange in humans occurs in the alveoli where oxygen enters the blood stream and carbon dioxide enters the lungs for
exhalation. What major organ are alveoli located in?
O the heart
O the lungs
O the bronchi
O the brain
Answer: the lungs
Explanation: During gas exchange oxygen moves from the lungs to the bloodstream. At the same time carbon dioxide passes from the blood to the lungs. This happens in the lungs between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli.
A 21 KG chair initially at rest on a horizontal floor requires a 167 N horizontal force to set it in motion once the chair is in motion a 132 N horizontal force keeps it moving at a
constant velocity.
The acceleration of gravity is 9.81 m/s².
a) What is the coefficient of static friction
between the chair and the floor?
b) what is the coefficient of kinetic friction between the chair and the floor?
The chair and floor have a static friction coefficient of 7.9523 and a kinetic friction coefficient of 0.8114, respectively.
What causes static friction?The braking force of an item is static friction. The resistance humans encounter when attempting to move something fastened to the ground without actually moving thier own bodies or the surface that are sitting on is described as static friction.
What causes static friction to form?Adhesion, a slight chemical attraction between contact objects, is what causes static friction. Friction is also produced by the interaction of the flaws on each surface.
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joey is riding in an elevator which is accelerating upwards at 2.0 m/s2. The elevator weighs 300.0 kg, and Joey weighs 60.0 kg. What is the tension in the cable that pulls the elevator upwards?
Answer:
The tension in the cable is 1800 N.
Explanation:
Why is the sun not the major factor in the tides?
Answer: the moon is closer.
Explanation:
The moon is closer to the earth than the sun, which results in a larger gravitational gradient for the moon even though the sun is considerably more massive and has stronger overall gravity than the moon.
Write any 3 difference between work energy power
Work is referred to as the displacement of an object when a force (push or pull) is applied to it while energy is referred to as the capacity to do the work. It exists in various forms like potential, kinetic, chemical, thermal, nuclear, electrical energy and so on. Power is the work done per unit of time.
Types of Energy:Mechanical energy.Mechanical wave energy.Chemical energy.Electric energy.Magnetic energy.Radiant energy.Nuclear energy.Ionization energy.power and energy are the same.
Work is usualy doing a task that gets rid of said energy.
If we wanted to use some brain-mapping techniques to identify anatomical functioning, but did not want to use any type of dye or tracer, which method below would be the best choice?
A. MRI
B. EEG
C. PET
D. SPECT
In PET scans, the breakdown of ___________ materials in the body and the release of gamma rays produce a functional view of the brain.
A. organic
B. radioactive
C. toxic
D. metallic
Since you wanted to use some brain-mapping techniques to identify anatomical functioning, the method that would be the best choice is option A. MRI.
In PET scans, the breakdown of option B: radioactive materials in the body and the release of gamma rays produce a functional view of the brain.
What substance is employed in a PET scan?FDG, which stands for "fluorodeoxyglucose," is a simple sugar (like glucose) that is frequently employed in PET scanning. It is injected into the bloodstream and builds up inside the body, where it emits gamma rays as energy.
Note that without injecting any kind of dye or tracer, brain mapping techniques like magnetoencephalography (MEG) and functional magnetic resonance imaging (fMRI) scans can be used to detect the anatomical functioning of the brain. The diagnosis and treatment of neurodegenerative illnesses can both benefit greatly from these techniques.
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The basic requirement for a cloud to collapse to form a star is that __________.
The basic requirement for a cloud to collapse to form a star is that gravity must be strong enough to overpower the cloud's internal pressure.
What is gravity ?
Gravity, also called gravitational force in mechanics, is the universal force of attraction that acts between all matter. It is by far the weakest known force in nature and plays no role in determining the internal properties of everyday matter. It controls the orbits of objects in places, the structure and evolution of stars, galaxies, and the universe as a whole. On Earth, all objects have a weight, or downward gravitational force, proportional to their mass, and the mass of the Earth acts on them. Gravity is measured as the acceleration it imparts to a free-falling object. At the Earth's surface, the acceleration of gravity is approximately 9.8 meters (32 feet) per second. For each second her body is in free fall, its velocity increases by about 9.8 meters per second. On the moon, the acceleration of a free-falling object is approximately 1.6 meters per second.
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What is a Cuticle?
20 POINTS
Answer:
a protective and waxy or hard layer covering the epidermis of a plant, invertebrate, or shell.
Answer:
The cuticles for animals are a thin layer of clear dead skin around the nail bed on fingers and toes. As the nail grows, it naturally pushes and damages the underside of the skin around the base of the nails, called the eponychium. The space between the eponychium and the bottom of the nail is where the cuticle is located.
The cuticle definition related to plants is a protective and waxy or hard layer covering the epidermis. The plant cuticle is an extracellular hydrophobic layer that covers the aerial epidermis.
Explanation:
What do you still wonder about force and motion as it relates to the pod and asteroid collection mission that did not go as planned?.
To collect the asteroid an equal magnitude of the force in opposite direction is needed.
What is force ?
The motion or speed of an object depends upon the magnitude and the direction of the force.
If the direction of the force is against the direction of motion, then the object will slow down or stop. The two forces of the same magnitude in the opposite direction cancel each other and the collided objects stop each other.
Therefore, to collect the asteroid an equal magnitude of the force in opposite direction is needed.
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Jay has a small marble that is very dense.
Which of the following accurately describes
the mass and volume of the marble?
small marble
A. large mass; little
volume
C. little weight; large
volume
B. little mass; large
volume
D. mass and volume
are equal
Answer:
c
xExplanation:
