Answer:
Suppose at time t1 = zero and v1 = 50 MPH
time t2 = 10 sec and v2 = 10 MPH
Change in speed = (v2 - v1) / (t2 - t1) = (10 - 50) MPH / (10 - 0) sec
Change in speed = -40 MPH / 10 sec = - 4 MPH / sec
If you specify the velocity as always East then
change in velocity = - 4 MPH East
Had the particle finished by moving in the Westerly direction then
Change in velocity = (-10 - 50) MPH / 10 sec = -60 / 10 MPH = -60 MPH East
Where West was the positive direction
Initially v1 was 50 East and v2 was -10 East with a difference of 60 MPH
Explain why the temperature varies with distance from the Sun in this way?
Answer:
The average surface temperature decreases the further you get from the Sun because the more distant planets receive less energy/heat/sunlight per square meter of their surface. This is because the energy from the Sun spreads out (becomes less concentrated) as you travel further from the source/Sun.
Explanation:
Do you want robot referees in your favorite class?
Answer:
Sounds cool.. but what do they do?
Explanation:
What type of energy do not harm our environment?
Answer:
Explanation: Renewable energy is energy that has been derived from earth's natural resources that are not finite or exhaustible, such as wind and sunlight. Renewable energy is an alternative to the traditional energy that relies on fossil fuels, and it tends to be much less harmful to the environment.
can anyone else finish the parts?
Answer:
2. wavelength
3. Crest
4. Rest
5. Trough
6. Amplitude
Explanation:
A fisherman sees 7 wave crests go by in 10.0 s. The crests are 2.43 m apart. Find the period of the wave. (Unit = s)
Velocity of the wave is 1.7 m/s
Explanation:
As we know that the frequency of the wave is defined as the number of waves crossing a fixed point per second
So here we will have
Also we know that the distance between two consecutive crest or two consecutive trough is known as wavelength
So here the wavelength of the wave is given as
now we have
The wave period will be 1.42 s.
What is wave period?The time interval, expressed in seconds, separating two waves as they pass throughout a stationary point has been known as the wave period.
What is wave?A pulse seems to be a single disturbance, whereas a wave would be a persistent, repeated interruption of a medium.
Calculation of wave period
The frequency = 7 / 10 = 0.7 Hz
Wave period can be calculated by the formula:
Wave period = 1 / frequency
Put the value of frequency in above equation.
Wave period = 1 / 0.7
Wave period = 1.42 s
Therefore, the wave period will be 1.42 s
To know more about wave period
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Which one of the following temperatures (in °C) is equivalent to 294 K?
A. 21 °C
b. - 312 °C
c. 39 °C
d. 585 °C
Answer:
21
Explanation: its actually 20.85 but i guess they round to 21
If 3 ocean waves travel past the end of the pier in 9 seconds and the wavelength of the ocean waves are 15 m long, what is the speed of the ocean wave?
Explanation:
[tex]period = \frac{3}{9} \\ f = \frac{9}{3} = 3 \: hertz \\ v = f \lambda \\ v = 3 \times 15 \\ v = 45 \: ms {}^{ - 1} [/tex]
a bus with a mass of 3000kg has a force of 15,000 newtons applied to it while traveling down the highway. what is the resulting acceleration on the bus?
Answer:
5m/s^2
Explanation:
acceleration= force/ mass
a = 15,000/3000
a = 5m/s^2
Answer:
uqvajwvabab
Explanation:
hiusbsvbskws wjq d wbsbb akwbwbs
Which is one property of silt soils?
Answer:
silt helps grow plants
Explanation:
it has more organic matter in it and it retains just enough water to grow
how many joules of energy is needed to move a 3 n rock 6 m
The amount of joules needed is 18
Explanation:
force×distance
HOW DOES A GRAPH HELP YOU SEE ANOMALOUS DATA?
Answer:
Anomalies consist of one or more modifications, insertions or deletions. As was described in Section 3.1, there are only three types of changes that can be made to a graph. Therefore, anomalies that consist of structural changes to a graph must consist of one of these types. Assumption 4.
Explanation:
If an unknown object has a mass of 150.0 grams and a volume of 50 cm3, what is the object’s density?
Which nucleus completes the following equation?
Answer:
Option D. ⁸⁵₃₆Kr
Explanation:
⁸⁵₃₅Br —> ⁰₋₁e + ?
Let ⁿₘZ represent the unknown.
Thus, the equation becomes:
⁸⁵₃₅Br —> ⁰₋₁e + ⁿₘZ
Next, we shall determine n, m and Z as follow:
85 = 0 + n
85 = n
Thus,
n = 85
35 = –1 + m
Collect like terms
35 + 1 = m
36 = m
Thus,
m = 36
ⁿₘZ => ⁸⁵₃₆Z = > ⁸⁵₃₆Kr
Thus, the equation:
⁸⁵₃₅Br —> ⁰₋₁e + ⁿₘZ
Becomes:
⁸⁵₃₅Br —> ⁰₋₁e + ⁸⁵₃₆Kr
I WILL GIVE BRAINLYIST! To change an efficiency value to a percentage you would ______________
A. Multiply by 100
B. Divide by 100
C. Do nothing
D. Multiply by 10
If a wave has a frequency of 9.25 x 10 ^4, what is its wavelength?
A. 3.24 x 10^3 m
B. 5.5 x 10 ^-3 m
C. 4.2 x 10 ^ 3 m
D. 8.9 x 10 ^ 9 m
Which of the following is not part of the UV spectrum?
A. Gamma rays
B. Ultraviolet rays
C. Microwaves
D. X-rays
Which type of wave can cause blindness or damage to the eyes at high intensities?
A. Ionizing waves
B. Radio waves
C. Visible light
D. Infrared waves
Answer:
No1 is a
No3 is d
For the rest idont know but I hope this will help
Answer:
If you delete this your a bot.12345
Explanation:
Convert the following into radians 90°, 30°, 45°, 180°
Answer:
90 degress -> radians= π/2
30 degress -> radians= π/6
45 degrees -> radians= π/4
180 degress -> radians= π
Explanation:
To convert degrees to radians, multiply the degree by π/180 and simplify.
Students in physical education class must _____?
1. Change into their physical education clothes prior to each class.
2. Obey all safety rules of gym.
3. Respect other students and teachers.
4. All of the above.
Which of the following could be used to calculate fluid pressure?
A certain AM radio wave has a frequency of 1.12 x 106 Hz. Given that radio waves travel at 2.99 x 108 m/s, what is the wavelength of this radio wave? (Round your answer to three significant figures.) Answer in "m" units
Answer:
2.67×10² m
Explanation:
Applying
V = λf............... Equation 1
Where V = Velocity of radio wave, λ = wave length, f = frequency.
make λ the subject of the equation
λ = V/f................ Equation 2
From the question,
Given: V = 2.99×10⁸ m/s, f = 1.12×10⁶ Hz.
Substitute these values into equation 2
λ = (2.99×10⁸)/(1.12×10⁶)
λ = 2.66696×10² m
λ ≈ 2.67×10² m
Answer:
hey Leslie good morning. they deleted you other question lol.
17. If two oxygen atoms combine to make a molecule, what type of bond will they form?
A) an ionic bond
B) a hydrogen bond
C) a covalent bond
Datuba
Answer:
C. A Covalent Bond
Explanation:
two covalent bond form between the two oxygen atoms because oxygen requires two shared electrons to fill its outermost shell
What can Lisa do to increase the strength of the electromagnet? She can use a nail with weaker magnetic properties. She can change the direction of the nail. She can increase the number of wire loops. She can reduce the current in the wire.
Answer:She can increase the number of wire loops
Explanation: When the number of loops of wire ( usually around the iron ) increases, the strength of the electromagnet is increased.
According to the equation
B=μ₀ N I
Where
μ₀ = permeability of the core
N= Number of turns of the coil
I= Current flowing through the coil
From the equation above , we can see that The strength of an electromagnet depends the amount of current, no of turns of coil and the permeability core of coil. we can now say that Increasing the number of wire loops increases the strength of electromagnet.
Therefore, Lisa should increase the number of wire loops to increase the strength of the electromagnet
Answer:
C
Explanation:
Edge2021
Ray diagrams may be drawn to determine the characteristics of an image produced from a lens or mirror. When the lens produces light rays that are parallel, the image is
Question 16 options:
between F & 2F on the other side as object
F on the other side as object
non-existent
at infinity
Answer:
At infinity the image is formed
When a lens produces light rays that are parallel, the image is: C. non-existent.
A ray diagram can be defined as the graphical representation of the possible paths light takes from one point (source) to another.
Hence, a ray diagram is a graphical representation of how light interacts with a boundary, so as to help us view a point on the image of an object.
Basically, the characteristics of an image produced from a lens or mirror can be determined by drawing a ray diagram of the possible paths taken by light.
On a ray diagram, an image produced from a lens is non-existent when the lens produces light rays that are parallel because the refracted rays of light neither diverge nor converge.
In conclusion, an image cannot be formed (non-existent) when a lens produces light rays that are parallel, due to refraction.
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A canister is approaching a 78.4 kg astronaut at 3.5 m/s in an airless spacecraft. She pushes against it, which slows it down to 1.2 m/s (but does not reverse it) and gives her a speed
of 2.4 m/s. What is the mass of this canister?
76.3 kg
55.6 kg
81.8 kg
90.0 kg
Answer:
76.3 kgExplanation:
this is my week answeri am having trouble with writing a 2 paragraph summary about this vidio can someone help me
Picture of the Big Bang (a.k.a. Oldest Light in the Universe)
Answer:
where is the video?
Explanation:
factorise by the cross method
3g^2 - 4g +1
plz answer
the question is in math by mistake i click physics i edit it
Answer:
{g}^{2}g2
Explanation:
ʜᴏᴘᴇ ɪᴛ ʜᴇʟᴘs ʙᴀʙᴇ
Hola puntos gratis !!!!!!!!!!!!!!!!!
Answer:
gracias
Explanation:
Hello.
Brainly points can be used for better situations, brainly points are experience that you receive by answering well.
If a person applies the same amount of force to an object what would
accelerate faster? *
1. A rock
2. A basketball
3. Bouncy ball
4. House
Answer:
A rock because
Explanation:
Answer: HERE IS THE ANSWER SIR
Explanation: SO I BELIEVE IT WOULD BE A BASKETBALL THINK ABOUT WHEN YOU TRY TO PUSH A TABLE THATS PUTTING EXTRA FORCE BUT IF YOU WERE TO DO THAT TO A BASKETBALL IT WOULD ACCELERATE MUCH RAPIDLY THEN ALL THE OTHER OBJECTS I CONSTANTLY DO THE PROCESS OF ELIMNATION WITH ALL THE CHOICE AND I FIGURED OUT IT WAS A BASKETBALL. I HOPE THIS HELPED HAVE A NICE DAYY!!
3&4 or you could just do one I just need help man..
Answer:
For number 3. The solar nebula was an event where a gaseous cloud that flattened until it became a solar system with stars and planets.
Explanation:
Hope this helps!
1. Which types of planets are more dense: terrestrial or
Jovian?
2. What is a light year?
Answer:
1. terrestrial
2. The distance light travels in one year
Explanation:
a rock of mass of 540 g in the air is found to have an apparent mass of 342 g when submerged in water (a) calculate the weight of the Rock given that the acceleration of the air g 10 m / s² to ignore the air resistance
Answer: 5.4 N
Explanation:
Given
mass of rock in the air is 540 g
Apparent mass of 342 gm when submerged in water
Weight of the rock is the product of mass and accleration due to gravity
[tex]\Rightarrow W=mg\\\Rightarrow 0.540\times 10=5.4\ N[/tex]
The sound from an insect is produced when it vibrates its wings at an average rate of 500 vibrations per second:
(a) What is the time-period of the vibrations ?
(b) What is the frequency of the vibrations in hertz ?
(c) Can we hear this sound? Why or why not?