Answer: B. The vehicle going downhill
Explanation: The vehicle going huphill needs more force to move, while the vehicle moving downhill actually can be moved only by the gravity acceleration.
So when both cars meet, if the car going uphill loses momentum, the vehicle may not be capable to keep moving uphill after that, so is better that the car going downhill yields the right-of-way to the other car, that needs to preserve the momentum.
The change in __________ is the amount of energy in a system that is available to do work.
If the radius of earth decreased, with no change in mass, what would happen to your weight
Answer:
weight would increase
Explanation:
I need the answers to this please
__________ constancy refers to the ability to understand that an object retains the same form even when viewed from a different angle.
A. Structural
B. Shape
C. Brightness
D. Color
The answer is Shape
Explanation:Shape Constancy is the tendency to perceive an object as having the same shape regardless of its orientation or the angle from which we view it. It is a term of Psychology. For example, the image of a dinner plate is elliptical, not circular, unless its surface is exactly at a right angle to our line of sight. But in the absence of all depth information, it is not possible to judge the true shape of any object.
Answer:
B. Shape
Explanation:
The graph shows a marble rolling down a curve from position 1 to position 5. In which position is the potential energy of the marble greatest?
The graph shows a marble rolling down a curve from position 1 to position 5. In position 1 the potential energy of the marble is greatest.
What is mechanical energy?Mechanical energy is the combination of all the energy in motion represented by total kinetic energy and the total stored energy in the system which is represented by total potential energy.
The expression for total mechanical energy is as follows
ME= PE+KE
Where ME is the mechanical energy
PE is the total potential energy
KE is the total kinetic energy
As total mechanical energy is the sum of all the kinetic as well as potential energy stored in the system. At the highest point of position 1, the potential energy of the marble ball would be greatest.
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If a negatively charged particle moves into a magnetic field traveling in a straight line, how would you expect its motion to change? A) The particle would slow and stop moving. B) The particle would travel in a curved path. C) The particle would continue traveling in a straight line. D) The particle would make a right angle turn and then continue traveling in a straight line.
Answer:
B) The particle would travel in a curved path.
Explanation:
I just took the test and this is the correct answer
Which of the following stars is likely to appear the brightest?
The star with the least energy
The most massive star
The farthest star
The coldest star
The most massive star is likely to appear the brightest. Hence option B is correct.
What is Most massive star ?The sun may be the most massive object in the solar system, making up 99.8% of the system's total mass, yet compared to other stars, it is actually rather typical. Of all known stars, roughly half are more massive and half are less massive. R136a1, a star that is more than 300 times as massive as the sun, is the most massive star known to exist in the sky. Yet it's not the only star dwarfing the main star of the Earth.
The Tarantula Nebula contains RMC 136a1, more often known as R136a1, which is located around 163,000 light-years from Earth. The Great Magellanic Cloud, one of the Milky Way's satellite galaxies, contains this huge star, which is located outside of our galaxy.
In 1960, astronomers at the Radcliffe Observatory in South Africa discovered the RMC 136 star cluster. More than 200 incredibly brilliant stars were discovered in the cluster when the Hubble Space Telescope analysed the system; the most massive of these stars was known as RMC 136a1.
Hence option B is correct.
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The picture is a model of a nitrogen atom. What is incorrect about the atomic orbital arrangement of electrons in this model and how should they be arranged?
It's not physics it's physical science but I figured this was the closest subject to it. 1. The life cycle of a star begins with a cloud of gas and dust called a (1 point)
How does newton's first law of motion relate to galileo's concept of inertia?
What conclusions can be drawn about the existence of nitrogen-14 and nitrogen-15? A) They are isotopes of nitrogen and they contain the same number of protons and electrons but each contains a different number of neutrons - 7 and 8 respectively. B) They are the same form of nitrogen and they include the same number of electrons and neutrons but each contains a different number of protons - 7 and 8 respectively. C) They are several allotropes of nitrogen and they accommodate the same number of neutrons but each contains a different numbers of protons and electrons - 7 and 8 respectively. D) They are different configurations of nitrogen and they consist of the same number of protons and neutrons but each contains a different number of electrons - 7 and 8 respectively. Eliminate
What would happen to the earth if it orbited further away from the sun than it does now?
Describe the energy transformations that occur from the time a skydiver jumps out of a plane until landing on the ground.
The rope will snap if the tension in it exceeds 55.0 n. what is the maximum value of the force f which can be applied?
The presence of which phenomenon proved the predictability of the big bang theory?
What important discovery was made by edmond halley and alexis clairaut, using newton's ideas of mathematics and gravity?
Answer:
Comet's orbit.
Explanation:
Edmond Halley and Alexis Clairaut were one of those Newtonian who helped to validate the results of Isaac Newton.
They correctly explained Comet' motion and how planets gravitational force affect them.
But using Newton's idea of Mathematics and Gravity, they have made two important discoveries:
1. Why celestial bodies have different colors.
2. They were able to find the Comet's orbit and prediction(year) of its return.
Read the sentence. telescopes or satellites _____ that neither mercury nor venus _____ a moon. which pair of verb forms correctly completes the sentence? proves; has proves; have prove; have prove; has
When there is or in-between two words, the tense is dependent upon the word that comes after or. In other words, the word that is closest to the verb will decide the form of the verb.
Since satellites is a plural form of a satellite, the verb that follows satellites should also be plural. The plural verb in the given options is prove.
As far as the second blank is concerned, you can see Venus is a proper noun; therefore, the verb that comes after Venus should be a singular verb, which in this case is has.
So the complete sentence would become the following:
Telescopes and satellites prove that neither Mercury nor Venus has a moon.
Correct pair: prove:has
Identify the temperature that is equivalent to 95°F. Use this formula to convert the temperature
The temperature that is equivalent to 95°F - 35° C
We can convert from Fahrenheit to Celsius using the formula:
=> [tex]C = \frac{5}{9} (f - 32)[/tex]
Celsius to Fahrenheit using the formula:
=> [tex]F= \frac{9}{5} C + 32[/tex]
where
f = represents degrees Fahrenheit and
c = represents degrees Celsius.
In our case,
f = 95 and we want to find c then,
[tex]C = \frac{5}{9} (f - 32)[/tex]
[tex]C = \frac{5}{9} (95- 32)\\C = \frac{5}{9} (63)\\C = 7*5\\C = 35[/tex]
Thus, the correct answer is - 35° C
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The grid in a triode is kept negatively charged to prevent… A. the variations in voltage from getting too large. B. the electrons from being attracted to the grid instead of the anode. C. electrons being repelled back to the cathode. D. electrons from escaping from the tube containing the triode.
Answer:
B. the electrons from being attracted to the grid instead of the anode.
Explanation:
just because it is
Which of the following statements is true?
A. Like charges attract and unlike charges repel each other.
B. Gravitational forces only exist between large masses.
C. On a level surface, normal force is greater than the weight of the object.
D. Applied forces are those created by another object or person.
Answer:
C.
Explanation:
I did this assignment
What are two ways you can increase the magnetic field of an electromagnetic?
To increase an electromagnet's magnetic field, add more turns to the coil and increase the current flowing through it. Inserting a ferromagnetic core can also enhance magnetic field strength, but limitations exist due to coil resistance and the properties of superconducting materials.
Explanation:To increase the magnetic field of an electromagnet, you can perform the following modifications:
Increase the number of turns in the coil: Adding more turns to the solenoid will enhance the magnetic field as it is directly proportional to the number of turns in the wire.Increase the current: By increasing the electrical current flowing through the coil, the magnetic field will also increase due to the direct relationship between current and magnetic field strength.Another method often used to enhance the strength of an electromagnet is by inserting a ferromagnetic material, such as iron, within the coil, which acts as a core to concentrate the magnetic field.
However, it is important to note that there are limits to the strength of the magnetic field that can be created. Exceeding certain thresholds can lead to an overheating problem due to coil resistance, or can destroy the superconducting properties if superconducting materials are used.
A sprinter set a high school record in track and field, running 200.0 m in 20.6 s . what is the average speed of the sprinter in kilometers per hour?
Answer : The average speed of the sprinter is, 34.95 Km/hr
Solution :
Average velocity : It is defined as the distance traveled by the time taken.
Formula used for average velocity :
[tex]v_{av}=\frac{d}{t}[/tex]
where,
[tex]v_{av}[/tex] = average velocity
d = distance traveled = 200 m
t = time taken = 20.6 s
Now put all the given values in the above formula, we get the average velocity of the sprinter.
[tex]v_{av}=\frac{200m}{20.6s}\times \frac{3600}{1000}=34.95Km/hr[/tex]
conversion :
(1 Km = 1000m)
(1 hr = 3600 s)
Therefore, the average speed of the sprinter is, 34.95 Km/hr
The average speed of the sprinter in kilometers per hour is about 35.0 km/h
Further explanationAcceleration is rate of change of velocity.
[tex]\large {\boxed {a = \frac{v - u}{t} } }[/tex]
[tex]\large {\boxed {d = \frac{v + u}{2}~t } }[/tex]
a = acceleration ( m/s² )
v = final velocity ( m/s )
u = initial velocity ( m/s )
t = time taken ( s )
d = distance ( m )
Let us now tackle the problem !
This problem is about Kinematics.
We will solve it in the following way
Given:
distance traveled = d = 200.0 m
time taken = t = 20.6 s
Unknown:
average speed = v = ?
Solution:
[tex]v = \frac{d}{t}[/tex]
[tex]v = \frac{200}{20.6}[/tex]
[tex]v = \frac{1000}{103} ~ m/s[/tex]
Next we will change the units of this speed into km/h.
[tex]v = \frac{1000}{103} \times \frac{3600}{1000} ~ km/h[/tex]
[tex]v = \frac{3600}{103}~ km/h[/tex]
[tex]v \approx 35.0 ~ km/h[/tex]
Learn moreVelocity of Runner : https://brainly.com/question/3813437Kinetic Energy : https://brainly.com/question/692781Acceleration : https://brainly.com/question/2283922The Speed of Car : https://brainly.com/question/568302Answer detailsGrade: High School
Subject: Physics
Chapter: Kinematics
Keywords: Velocity , Driver , Car , Deceleration , Acceleration , Obstacle , Speed , Time , Rate
What is the wavelength (in air) of a 13.0 khz vlf radio wave?
Final answer:
The wavelength of a 13.0 kHz VLF radio wave in air is calculated using the formula λ = v / f, with the speed of light as the speed. This yields a wavelength of about 23,077 meters, or 23 kilometers, illustrating the long-distance propagation capabilities of VLF radio waves.
Explanation:
The question pertains to calculating the wavelength of a 13.0 kHz VLF (Very Low Frequency) radio wave in air. The formula that links the wavelength (λ), frequency (f), and speed (v) of a wave is λ = v / f. For electromagnetic waves in air, the speed can be approximated to the speed of light, which is roughly 3×108 meters per second (m/s).
Using this formula:λ = 3×108 m/s / 13,000 Hz = approximately 23,077 meters.
Therefore, the wavelength of a 13.0 kHz VLF radio wave in air is about 23 kilometers. This large wavelength is characteristic of VLF radio waves, allowing them to propagate over long distances and curve around the Earth's surface, making them useful for communication over the horizon without the need for satellite or cable transmission.
For the lever shown, a = 5 m and b = 2 m. What is the mechanical advantage of the lever?
People living in the Amazon Rain Forest want to clear the forest of vegetation and create farmland so they can grow crops. How will clearing away vegetation affect soil erosion
What feature of double-glazed windows makes them good insulators? a. Thick glass is highly viscous. c. Heat conduction cannot take place through solid glass b. There is a vacuum between the panes of glass d. Thermal energy is not transferred through the special chemical glazing.
You have an electromagnet that is not quite strong enough. What are three changed you could make to increase the strength
A longitudinal wave lacks which of the following properties? a. speed. b. frequency. c. wavelength. d. amplitude. e. A longitudinal wave has all of the above.
The correct option is (e). A longitudinal wave has all of the properties like speed, frequency, wavelength & amplitude.
Longitudinal waves are characterized by their unique properties, which include speed (a), frequency (b), wavelength (c), and amplitude (d). Here's a brief explanation of each property:
a. Speed (a): This is the rate at which the wave propagates through a medium. It is typically measured in meters per second (m/s) and depends on the properties of the medium, such as its density and elasticity.
b. Frequency (b): This is the number of complete cycles of the wave that pass a given point per unit time. It is measured in hertz (Hz) and is related to the pitch or tone of a sound wave, which is a type of longitudinal wave.
c. Wavelength (c): This is the distance between two consecutive points in the wave that are in phase, such as two adjacent peaks or two adjacent troughs. It is usually denoted by the Greek letter lambda [tex]\lambda[/tex] and is related to the frequency and speed of the wave by the equation [tex]\( v = f \lambda \)[/tex], where v is the speed, f is the frequency, and [tex]\( \lambda \)[/tex] is the wavelength.
d. Amplitude (d): This is the maximum displacement of a point on the wave from its rest position. It determines the loudness or intensity of a sound wave and is related to the energy carried by the wave.
Which of the following would be more likely to utilize capitalism-based land management methods?
a.
city planners
b.
federal regulators
c.
corporate directors
d.
all of the above
the correct answer is c. corporate directors I just took the test and federal regulators was wrong.
Two identical balls are thrown vertically upward. the second ball is thrown with an initial speed that is twice that of the first ball. how does the maximum height of the two balls compare? two identical balls are thrown vertically upward. the second ball is thrown with an initial speed that is twice that of the first ball. how does the maximum height of the two balls compare? the maximum height of the second ball is two times that of the first ball. the maximum heights of the two balls are equal. the maximum height of the second ball is four times that of the first ball. the maximum height of the second ball is 1.41 times that of the first ball. the maximum height of the second ball is eight times that of the first ball.