Using a phone at a gas station poses a minimal risk of causing a car explosion due to the ignition of gasoline vapors, but cars and gasoline are designed to be relatively safe, and actual incidents are very rare.
The concern about cars blowing up while using a phone during refueling is generally based on the risk of igniting gasoline vapors. Cars contain flammable substances like gasoline and oil, which can be dangerous when not handled properly.
However, the likelihood of a car exploding under such circumstances is very low. Gasoline needs to vaporize and mix with oxygen in the right proportions to become explosive, and even then, it requires an ignition source.
Using a phone is often discouraged at gas stations because electronic devices are believed to have the potential to generate a small spark that could ignite these vapors.
But, the risk is considered to be rather minimal. It's important to note that cars are designed with various safety features, and gasoline itself is not as explosive as many people think—its vapors need to be ignited to catch fire.
How is Marta’s study biased
Marta's study is based on how much junk food/ healthy food does boys vs. girls consume.
Answer:
Marta already thinks one group eats healthier than the other.
Marta does not clearly define “healthy foods.”
Explanation:
If you wanted to learn more about about the experiences of an African American pioneer in a scientific field, whose life would you research?
To learn more about the experiences of an African American pioneer in a scientific field, researching figures like Dr. Percy Julian, a chemist, or Dr. Charles Drew, a medical researcher, would be insightful. Additionally, delving into 19th-century African American inventors and the legacy of African American women journalists can broaden one's understanding of the impacts made by these trailblazers in their respective fields.
If you are interested in learning more about the experiences of an African American pioneer in a scientific field, one impactful individual to research would be Dr. Percy Julian. He was a chemist who made significant contributions to the synthesis of medical drugs such as cortisone, steroids, and birth control pills. Moreover, you might want to explore the work of Dr. Charles Drew, a surgeon and medical researcher who developed improved techniques for blood storage and established large-scale blood banks early in World War II, saving countless lives.
Looking into the contributions of African American inventors of the 19th century can provide insight into the enduring impacts of their innovations on today's society. Furthermore, understanding how pioneering African American women journalists have opened opportunities for diverse voices in media can offer a broader perspective on the intersection of race, gender, and professional progress in the field of journalism.
Delving into Black history, one realizes its significance in identifying overlooked figures who have shaped our present. This could involve investigating individuals who played key roles in impactful events, like the psychologists whose research influenced the Brown v. Board of Education civil rights case. Identifying such individuals not only honors their contributions but also fosters a more inclusive understanding of history's narrative.
Rarefaction occurs only in a ___ wave.
A: transverse
B: longitudinal
C: sympathetic
D: forced
Answer:B: longitudinal
Explanation:
A bucket of mass 1.90 kg is whirled in a vertical circle of radius 1.45 m . at the lowest point of its motion the tension in the rope supporting the bucket is 24.0 n . find the speed of the bucket
What is the velocity of a wave with a frequency of 760 Hz and a wavelength of 0.45 m?
Final answer:
Velocity of a wave is obtained by multiplying its frequency by its wavelength. In this case, the velocity of the wave with a frequency of 760 Hz and a wavelength of 0.45 m is 342 m/s.
Explanation:
Velocity of a wave is calculated by multiplying the frequency of the wave by its wavelength. In this case, with a frequency of 760 Hz and a wavelength of 0.45 m, the velocity of the wave can be found by multiplying the frequency and the wavelength: 760 Hz x 0.45 m = 342 m/s.
Which would usually be studied by a geologist
how long will it take to travel 200,000m traveling 10m/s
Which layer is thinnest under the oceans and thickest in the mountains
When you add heat energy the molecules move ______ and _____
Which of the following correctly describes the appearance of muscle tissue used to voluntarily raise a person's arm?
A) Single-nucleus, non-striated, short cells
B) Single-nucleus, striated, branching cells
C) Multinucleated, non-striated, branching cells
D) Multinucleated, striated, long threadlike cells
When jumping, a flea rapidly extends its legs, reaching a takeoff speed of 1.0 m/s over a distance of 0.50 mm find acceleration
The take off speed (final velocity) is:
v = 1.0 m/s
The total distance taken is:
d = 0.50 mm = 5 x 10^-4 m
To find the acceleration a, we use the formula: (vi is initial velocity = 0)
v^2 = vi^2 + 2 a d
(1.0 m/s)^2 = 2 a (5 x 10^-4 m)
a = 1,000 m/s^2
what essential characteristic does a good experiment have? a. a control group is given the experimental treatment. b. a single variable is tested. c. a control is used. d. both b and c
A good experiment should have a control and test a single variable.
Explanation:A good experiment should have the essential characteristic of using a control to compare the results of the experimental treatment. This ensures that any changes or effects seen in the experimental group can be attributed to the treatment being tested and not to other factors. Additionally, a good experiment should test a single variable to isolate the specific factor being studied.
For example, if a scientist is testing the effect of a new fertilizer on plant growth, they would have two groups of plants - one receiving the new fertilizer (experimental group) and one receiving no fertilizer (control group). By comparing the growth of the two groups, they can determine if the fertilizer had any effect.
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What is the relationship between work and power
Power is a measure of how quickly work is done or how quickly energy is transferred. The relationship between work and power is (P) = W ÷ t
The following equation describes how work and power are related:
Power (P) = W ÷ t
The power production is larger when the same amount of work is completed in less time. On the other hand, if the work is spread out over more time, the power production is lower.
For instance, if two people work equally hard but one does the task faster than the other, that person is exerting more power than the person who takes longer.
This relationship demonstrates how power is influenced by both the quantity and duration of work.
Therefore, The relationship between work and power is (P) = W ÷ t
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Ignoring effects caused by differences in depth, the pressure in a contained fluid is __________.
a. the same throughout the fluid
b. higher in some places and lower in other places
c. unknown as long as the fluid is contained
Which of the following is not an application of Doppler technology?
police speed guns
weather radar
ultrasound imaging of the liver
determining the motion of a star
Answer:
ultrasound imaging of the liver.
Explanation:
Liver ultrasound is not an application of the Doppler effect. The use of ultrasound is more common in medicine, for example, during pregnancy.
Another application in medicine is with the movement of blood. It is a flowmeter which allows the blood flow to be discovered through the Doppler effect, since a sound wave affects the red blood cells that are in motion inside the vessel and collect the echo signal.
What do the vertical columns in the periodic table indicate?
A.periods
B.liquids
C.synthetic elements
D.groups and families
The correct answer is
D. Groups and Families
I did the quiz nd this was the right answer
Hopes this helps :)
Why non-metals aren't good at conducting electricity?
Assume that you stay on the earth's surface. what is the ratio of the sun's gravitational force on you to the earth's gravitational force on you?
The ratio of gravitational force of the sun to the earth's gravitational force is about 1 : 1580
[tex]\texttt{ }[/tex]
Further explanationNewton's gravitational law states that the force of attraction between two objects can be formulated as follows :
[tex]\large {\boxed {F = G \frac{m_1 ~ m_2}{R^2}} }[/tex]
F = Gravitational Force ( Newton )
G = Gravitational Constant ( 6.67 × 10⁻¹¹ Nm² / kg² )
m = Object's Mass ( kg )
R = Distance Between Objects ( m )
Let us now tackle the problem !
[tex]\texttt{ }[/tex]
Given:
radius of Earth = Re = 6.4 × 10⁶ m
mass of the Earth = Me = 6.0 × 10²⁴ kg
distance from Sun to Earth = Rs = 147 × 10⁹ m
mass of the Sun = Ms = 2.0 × 10³⁰ kg
Asked:
ratio of gravitational force of the sun and the earth = ?
Solution:
[tex]F_s : F_e = G \frac{ m M_s }{R_s^2} : G \frac{ m M_e }{R_e^2}[/tex]
[tex]F_s : F_e = \frac{ M_s }{R_s^2} : \frac{ M_e }{R_e^2}[/tex]
[tex]F_s : F_e = \frac{ 2 \times 10^{30} }{(147 \times 10^9)^2} : \frac{ 6.0 \times 10^{24} }{ (6.4 \times 10^6)^2}[/tex]
[tex]F_s : F_e \approx 1 : 1580[/tex]
[tex]\texttt{ }[/tex]
Learn moreImpacts of Gravity : https://brainly.com/question/5330244Effect of Earth’s Gravity on Objects : https://brainly.com/question/8844454The Acceleration Due To Gravity : https://brainly.com/question/4189441[tex]\texttt{ }[/tex]
Answer detailsGrade: High School
Subject: Physics
Chapter: Gravitational Fields
The ratio of the Sun's gravitational force on an individual to that of Earth's can be found using Newton's Law of Universal Gravitation, which takes into account the masses of the Earth and Sun and the distances from the individual to the centers of these celestial bodies.
Explanation:
To calculate the ratio of the Sun's gravitational force on you to the Earth's gravitational force on you, we would use Newton's Law of Universal Gravitation, which states that the force of gravity between two masses is proportional to the product of their masses and inversely proportional to the square of the distance between their centers. For an object of mass m on the Earth's surface, the gravitational force it experiences due to the Earth (Fearth) can be calculated using the formula:
Fearth = G × (Mearth × m) / r2
where G is the gravitational constant, Mearth is the mass of the Earth, m is the mass of the object, and r is the radius of the Earth. Similarly, the gravitational force due to the Sun (FSun) is:
FSun = G × (Msun × m) / d2
where Msun is the mass of the Sun and d is the average distance from the Earth to the Sun. Given that both m and G are constants and cancel out when we take the ratio FSun/Fearth, the final ratio depends only on the masses of the Earth and Sun and the distance between the Earth and the Sun relative to the radius of the Earth.
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When a loop of current-carrying wire turns continuously in a magnetic field, a _________ is created.?
Answer: The correct answer is torque.
Explanation:
When a loop of current carrying wire turns continuously in a magnetic field then torque will act on the loop. The loop tends to rotate such that its normal becomes aligned with magnetic field. Torque is a force which rotate the object about an axis.
Torque depends on the orientation of normal to the coil to the direction of the magnetic field.
Therefore, when a loop of current-carrying wire turns continuously in a magnetic field, torque is created.
During which portion of the earth's revolution around the sun is the northern hemisphere tilted toward the sun?
A ball is thrown horizontally from the roof of a building 7.8 m tall and lands 9.5 m from the base. what was the ball's initial speed
The problem deals with finding the initial horizontal speed of a ball thrown from a building, using kinematic equations and the principles of projectile motion.
Explanation:The student is asking about the initial speed of a ball that is thrown horizontally from the roof of a building. To solve this problem, we need to use the principles of kinematics, specifically the equations of motion for uniformly accelerated bodies. Since the ball is thrown horizontally, its initial vertical speed is 0 m/s. The only vertical motion is due to gravity. We can calculate the time it takes for the ball to hit the ground using the formula for free fall distance d = rac{1}{2}gt^2, where d is the distance fallen, g is the acceleration due to gravity (9.8 m/s^2), and t is time. Solving for t, we find that t = rac{2d}{g}.
The ________ approach emphasizes looking at the whole, rather than the sum of its parts.
psychodynamic
behavioral
functionalism
Gestalt
If i measure the parallax of a star to be 0.125 arc seconds, what is its distance in parsecs?
To compute for the distance of a star given the parallax, we simply have to take the reciprocal of the magnitude of parallax. In this case, distance is:
distance = 1 / parallax
distance = 1 / 0.125
distance = 8 parsecs
What is the mission of the mars Land Rover, and why is it important?
Check my Physics question's answer ASAP please?
You measure the mass of a 0.500 kg (500 g) standard on your balance four times. the following measurements result: 498 g, 501 g, 499 g, 500. Which of the following best describes your balance?
1) precise and accurate <--- I think it is this one?
2) not precise and not accurate
3) precise but not accurate
4) not precise but accurate
The balance is both precise and accurate, as the measurements of 498 g, 501 g, 499 g, and 500 g are all close to the true value of 500 g, and the variations are minor, indicating consistency and correctness.
Explanation:When assessing the performance of your balance through multiple measurements, two concepts are of utmost importance: precision and accuracy. Precision refers to the consistency of repeated measurements, while accuracy refers to how close those measurements are to the true or accepted value.
In your case, the measurements on the balance were 498 g, 501 g, 499 g, and 500 g. Since the true mass of the standard is 500 g and your measurements are all very close to this value, your balance is both precise and accurate. The minor variations in measurement are within a reasonable range, suggesting that the balance repeatedly gives results very close to the true mass.
Therefore, the best description for your balance is option 1): precise and accurate. Your initial instinct was correct, as these results show a tight grouping around the true value (precision) and the true value itself is within the range of the measurements (accuracy).
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Pleaseeee hurry!!!
Atom A has an atomic number of 19 and mass number of 40. Atom B has an atomic number of 20 and a mass number of 40.
Which of these is an accurate statement?
A) Atom A has more protons than Atom B.
B) Atom A has one less proton and one more neutron than Atom B.
C) Atom A has an extra nucleon compared to Atom B.
D) Atom A has one more proton and one more electron than Atom B.
Answer: C
Explanation: this is called an isotope which has equal number of protons but different numbers of neutrons in the nucleus hence different atomic mass but no difference in chemical properties.
When using science to investigate physical phenomena, which of the following is NOT a characteristic of the event must exist?
If a person has the values for an objects density and volume , what value can be calculated
Answer:If a person has the values for an object’s density and volume, what value can be calculated?
Explanation: The answer is C
jack tries to place magnets on his refrigerator at home, but they won’t stick. What could be the reason?
I Honestly Think Its A, If Its Wrong Im Sorry. But Im Sure Its A
what i the distance that light moves in a year called
nocturnal year
solar year
planetary year
light-year
Answer:
correct answer is - light year
Explanation: