Answer:
65c
Explanation:
Your car burns gasoline as you drive up a mountain road. What energy transformation is taking place?
Answer:
the chemical energy of the gasoline is converted into kinetic energy of the car.
Explanation:
Gasoline contains several chemicals like lubricants, anti-rust agents and anti-icing agents which are added to improve the performance of a car. The energy change taking place during the burning of gasoline is chemical energy to thermal energy.
What is gasoline?Gasoline is a pale brown or pink liquid which is made from the processed crude oil. It evaporates easily and is highly flammable and form explosive mixtures in air. It is a mixture of many hydrogen and carbon containing chemicals which are hydrocarbons.
A typical gasoline mixture contains about 150 different hydrocarbons, including butane, pentane, isopentane and the BTEX compounds like benzene, ethylbenzene, toluene and xylenes.
When a gasoline burns the chemical energy is converted into thermal energy and then this thermal energy is converted into mechanical energy. Gasoline burns and produce heat and this heat is converted into mechanical energy to move the car.
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do you think objects will be able to move without action and reaction forces?
The real advantage to hydrostatic weighing is that it __________.
A.
can be done anywhere with no equipment
B.
gives one of the most accurate measurements of body fat
C.
uses calipers to measure body fat
Answer:
B. gives one of the most accurate measurements of body fat
Answer:
B. ) gives one of the most accurate measurements of body fat
A bar of gold has a temperature of 31°C, and a bar of aluminum has a
temperature of 27°C. Which statement explains why the bar of aluminum has
a lower temperature?
Answer:the particles that make up the aluminum bar are moving more slowly
Explanation:just did it on
A bar of gold has a temperature of 31°C, and a bar of aluminum has a
temperature of 27°C. Because the particles that make up the aluminum bar are moving more slowly.
What is Temperature ?Temperature is a physical quantity which measures hotness and coldness of a body. Temperature measures the degree of vibration of molecule in a body. Temperature is measured in centigrade (°C), Fahrenheit (°F) and Kelvin (K) in which Kelvin (K) is a SI unit of temperature.
Absolute scale of temperature means Kelvin scale of temperature. relation between Kelvin(K) and centigrade (°C), °C= K - 273.15 from equation, 273.15 K means 0 °C, which is freezing point of water (ice). when we give temperature to the body, its molecule or atom absorbs thermal energy and vibrate about their mean position.
Amplitude of vibration get increases as we go on increasing temperature and for higher temperature force of attraction between molecules gets weaker. Hence for higher temperature, due to weaken the force of attraction between molecule, solid goes into liquid state. and further increase in temperature liquid goes into gaseous state.
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what is the property of medium
Answer:tension, density, temperature and elasticity
Explanation:
Ruby wants to find out what variables affect the rate at which sugar dissolves in water. She records different information about four containers of water and sugar, as shown in the table below.
Which two containers should Ruby choose to investigate the effect that temperature has on the rate at which sugar dissolves?
Answer:
The correct answer is - containers 1 and 3.
Explanation:
In any experiment or investigation, there must be all the factors should be constant other than the variable that is changed to see the effect on the result or desired character.
In this experiment to check the effect of the temperature, there must be the only temperature is a variable that should be manipulated rest should remain constant. In container 1st and 3rd, all the variable amount of sugar, the method of mixing all are the same except temperature.
Thus, the correct answer is - 1 and 3rd.
In a full sentence, explain the difference between static charge and static shock.
Answer:
The most significant difference between the static and current electricity is that in static electricity the charges are at rest and they are accumulating on the surface of the insulator. Whereas in current electricity the electrons are moving inside the conductor.
Define rest
Define motion
Answer:
motion: motion is the phenomenon in which an object changes its position over time. four common types of motion are rotary, oscillating, linear, and reciprocating.
rest is the polar opposite
Explanation:
difference between precion and accuarcy
Answer: accuracy is how close a value is to their true value, like how close a arrow gets to the bull's eye center. precision is how repeatable a measurement is, like how close a second arrow is to the first one.
Explanation:
Viscous lidocaine 2% 30 mL Maalox (do not substitute Kaopectate) 60mL Diphenhydramine (use on hand stock 12.5mg/5mL elixir) 75 mg Carafate 1gm/10mL 40 mL The doctor wants the patient to use a daily dose of 2 teaspoons. How many doses are in the final product?
Answer:
There are approximately 16 dozes in the final product
Explanation:
The given parameters are;
The viscous lidocaine 2% 30 mL + Maalox 60mL + Diphenhydramine (12.5 mg/5mL elixir)75 mg + Carafate 1gm/10mL 40mL
The total volume becomes;
30 mL + 60 mL + 5 × 75/12.5 mL + 40 mL = 160 mL
1 Teaspoon = 4.928922 mL
Therefore, 2 teaspoon = 2 × 4.928922 mL = 9.857843 mL
Which gives;
The number of doses in 160 mL = 160 mL/(9.857843 mL) = 16.2307312 doses
Which is approximately 16 doses
Therefore, there are approximately 16 dozes in the final product.
plz help ASAP I will mark brainliest
Answer:
0.616
Explanation:
hve a wonderful weekend :) stay safe
Please help me please! :(
Answer:
The trachea is one part of the respiratory tree, that is a conduit for air to pass through on its way to or from the alveoli of the lungs. This transmits oxygen to the body and removes carbon dioxide.
The bronchi are the airways that lead from the trachea into the lungs and then branch off into progressively smaller structures until they reach the alveoli, the tiny sacs that allow for the exchange of oxygen and carbon dioxide in the lungs.
Explanation:
Answer:
dont know
Explanation:
sorry man
What is the mass of the block of iron that has a density of 7.87 g/cm3. Its volume measurements are 2 cm x 10 cm x 5 cm.
which of these is a logical hypothesis regarding mass and period
Answer:
An increase in the mass on the string will cause an increase in the period.
Explanation:
We'll begin by writing an expression showing the relationship between the period and mass. This is shown below:
T = 2π√(m/K)
Where:
T is the period of oscillation.
m is the mass of the object.
K is the spring constant.
T = 2π√(m/K)
From the above formula:
The period (T) is directly proportional to the square root of mass (m) and inversely proportional to the square root of the spring constant (K). This implies that an increase in the mass of the object on the spring will result in an increase in the period of oscillation and a decrease in the mass of the object will also decrease the period of oscillation.
What does WNBA stand for
Answer:
Women's national basketball association
Explanation:
Answer: womens national basketball association
Explanation: my dream
Consider this situation: A block is at rest on an inclined
plane. Of the forces listed, identify which act upon the block.
•normal
•gravity
• applied
• friction
•tension
• air resistance
The forces, act upon the block which is at rest on an inclined plane, are:
normal force.force due to gravity.force due to friction.What is frictional force?Two surfaces that come into contact and glide against one another produce frictional force.
When the block is on an inclined plane, its weight is acting downwards for force of gravity, the surface on the plane acts an upward force named normal force. But to become it rest, a resistive frictional force acts on it. Hence, the forces, acts upon the block, are:
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A high-speed train travels with an average speed of 227 km/hr. The train travels for 2 hrs. How far does the train travel?
Answer: The answer would be 454 miles.
Explanation: You multiply the average speed by time travelled
the smooth and accurate execution of movement as conceived in the mind and executed by the body parts
The smooth and accurate execution of movement as conceived in the mind and executed by the body parts describes ; The central nervous system.
Although your question is incomplete an answer is provided which falls within the scope of your question
The human brain receives, interprets and transfer signals it deduces from the impulses it received to the various sense organs ( body parts ) for execution. and this process involves coordination within the nervous system.
The central nervous system is a category of the Nervous system of a human and it consists of the spinal cord and the human brain. and the peripheral nervous system
Hence we can conclude the smooth and accurate execution of movement as conceived in the mind and executed by the body parts describes, The central nervous system.
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A plane is heading south at 250 mi/hr. If the jet stream (wind) is blowing from west to the east at 80 mi/hr, what is the speed and direction of the plane?
Answer:
Speed = 262.49
Direction = 72.26°
Explanation:
[tex] \sqrt{ {250}^{2} + {80}^{2} } [/tex]
=262.49mi/hr
[tex] \tan( \alpha ) = \frac{y}{x} [/tex]
[tex] \tan( \alpha ) = \frac{250}{80} [/tex]
[tex] \alpha = {tan}^{ - 1} ( \frac{250}{80} )[/tex]
=72.26°
A girl tries to jump over a 0.825 m
wide creek by jumping at 3.87 m/s
at a 18.8° angle. What is her
height when she reaches the
other side of the creek?
Assume that a scale is in an elevator on Earth.
what force would the scale exert on a 53-kg person
standing on it during the following situations?
(use Fnet = ma and F = mg and g = 10m/s^2)
a. The elevator moves up at a constant speed.
b. It slows at 2.0 m/s^2 while moving upward.
C. It speeds up at 2.0 m/s^2 while moving downward.
d. It moves downward at a constant speed.
Blank 1:
Blank 2:
Blank 3:
★ Remember :
The reading of scale of a man in an elevator :
When the elevator moves upward with acceleration a, R = m(g + a)When the elevator moves downwards with acceleration a , R = m(g - a)When the elevator falls freely, we take a = g so, R = m(g - g) = 0When the lift is at rest or moves with uniform velocity, a = 0, so R = m(g - 0) = mgA). The elevator moves up at a constant speed[tex].[/tex]
∴ Acceleration of elevator = 0
➠ R = mg
➠ 53 × 10
➠ R = 530N
B). It slows at 2m/s² while moving upward.
∴ Acceleration of elevator = -2m/s²
[Negative sign shows that speed decreases with time]
➠ R = m(g + a)
➠ R = 53(10 + (-2))
➠ R = 53 × 8
➠ R = 424N
C). It speeds up at 2m/s² while moving downward.
∴ Acceleration of elevator = 2m/s²
➠ R = m(g - a)
➠ R = 53(10 - 2)
➠ R = 53 × 8
➠ R = 424N
D). It moves downward at constant speed.
∴ Acceleration of elevator = 0
➠ R = mg
➠ R = 53 × 10
➠ R = 530N
Hope It Helps!(a) When the elevator moves up with a constant speed, the force on the scale is 519.4 N.
(b) When the elevator slows down at 2 m/s² while moving up, the force on the scale is 625.4 N
(c) When the elevator speeds up at 2 m/s² while moving down, the force on the scale is 413.4 N.
(d) When the elevator moves down at constant speed, the force on the scale is 519.4 N.
The given parameters;
mass of the person , m = 53 kgThe force that scale must exert on the person is calculated as follows;
F = mg + ma
F = m(a + g)
(a)
When the elevator moves up with a constant speed, the acceleration is zero.
F = m(0 + g)
F = mg
F = 53 x 9.8 = 519.4 N
(b)
When the elevator slows down at 2 m/s² while moving up;
F = m(a + g)
F = 53(2 + 9.8)
F = 625.4 N
(c)
When the elevator speeds up at 2 m/s² while moving down;
F = m(g - a)
F = 53(9.8 - 2)
F = 413.4 N
(d)
when the elevator moves down at constant speed;
F = m(g - a)
F = 53(9.8 - 0)
F = 519.4 N
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The organisms and environments that make up a community, called an Response area, are constantly changing. Sudden and violent events, such as Response area from the ocean and Response area, that often cause these changes are called Response area. Response area results when rainfall exceeds the holding capacity of a drainage system.
Answer:
ecosystem; hurricanes and tornadoes; catastrophic events.; Fooding; moving water; soil
Explanation:
After using the word bank to fill in the blanks in the passage, the passage reads;
"The organisms and environments that make up a community called an ecosystem are constantly changing. Sudden and violent events, such as hurricanes and tornadoes that often cause these changes are called catastrophic events. Fooding results when rainfall exceeds the holding capacity of a drainage system. The energy of the fast-moving water and the layers of sediment carried by it can uproot or bury plants, reshape the soil and destroy roads and buildings."
Which of the following describes the rate at which work is done?
Force
Energy
Power
Impulse
Answer:
power
Explanation:
The capitary action of water is caused the cohesion of water molecules to different types of molecules and the adhesion of water molecules with other water molecules true or false
Answer:
This is True
Explanation:
I just did this exact unit in bio last week I hope this helps ;)
3The diagram shows three objects that are
moving. A force acts on each object. For each.
say how its movement will change.
Answer:
ball moves forward
direction of moving car is reversed
plane changes the direction
The force on the ball acting to the right may changes its falling to the net. The north-east force acting on the airplane can drag the plane to the eastward direction thus deviates the plane from north. The backward force acting on the car make it hindrance to its forward movement.
What is force?Force is an external agent acts on a body, to deform it or change its state from motion or rest. There are different type of forces such as magnetic forces, gravitational force.
Force accelerates a body to move where, as the mass increases, more force have to apply to accelerate the body. If two forces acting in opposite direction, the will cancel each other in magnitude.
The force acting on the ball makes it prevents from falling and the force acting on the plane can deviates its direction from north to eastwards. The backward force acting on the car decelerates the car from forward movement.
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What causes a gravitational field around an object?
density
mass
shape
volume
Answer: It is mass
Explanation: It is caused by a bending of space-time.
Answer:
B - Mass
Explanation:
Edg
You use 35 joules of energy to move a 7 newton box. How far did you move it?
If you picked it straight up, you lifted it 5 meters.
If you moved it horizontally, it could be ANY distance.
Answer:
5
Explanation:
distance = work / force
d = 35 J / 7 N
d = 5 m
Where is a bibliography or works-cited list placed within a paper or report?
in the introductory material
at the bottom of each page
at the end
in the appendix
Answer:
at the end
Explanation:
Answer:
at the end of the page
Explanation:
leave a rating for my dying soul please. :)
Fill in the correct answers. A big wheel with twice the circumference of a small wheel will rotate with ____ the force and ___ the speed of the small wheel.
A) half, twice
B) Three times, half
C) twice, half
D) half, three times
Answer:
C.
Explanation:
""""""" Twice,Half """"""
A big wheel with twice the circumference of a small wheel will rotate with the force and the speed of the small wheel.
C) twice, half
Circumference of WheelA big wheel with twice the circumference of a small wheel will rotate with twice the force and half the speed of the small wheel.
It is the round circle found on the outside angle of the machine.
It is the adjusted barrel or rod-like portion put on the interior of the machine that's connected to the wheel and makes a difference to advance development.
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how can being physically fit help you emotionally