Answer:
Explanation:
Physics gets involved in your daily life right from you wake up in the morning. The buzzing sound of an alarm clock helps you wake up in the morning as per your schedule. The sound is something that you can't see, but hear or experience. Physics studies the origin, propagation, and properties of sound
Has anyone has the answers for Physical Education # 12 cross word and the word search?
Answer:
No
Explanation:
the answers, they seemed to be blocked on go.ogle
A wave has a wavelength of 3.3 m and a speed of 5.6 m/s. What is the frequency of this wave
Answer: λ (wavelength) = 3.3 m → ΔS = 3.3 m
v (speed) = 5.6 m/s → ΔV = 5.6 m/s
T (period) → ΔT = ?
f (frequency) = ?
If:
Now: (if, ΔT = T), Using the formula of the period of a wave, find the frequency:
Explanation: Your Welcome u.u
The frequency of this wave is approximately 1.697 Hz.
To find the frequency of a wave, we can use the formula:
frequency (f) = speed (v) / wavelength (λ)
Given:
Wavelength (λ) = 3.3 m
Speed (v) = 5.6 m/s
Substituting these values into the formula, we can calculate the frequency:
f = v / λ
f = 5.6 m/s / 3.3 m
f ≈ 1.697 Hz
Therefore, the frequency of this wave is approximately 1.697 Hz.
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A cyclist rides 3 km west and then turns around and rides 2 km east. What is her displacement?
Answer:
Then she only traveled 1km
6. The temperature at which water molecules have the
LEAST amount of thermal energy is!
a. 0°C b. 32°F c.-273 K d. 0 k
NEEEED THUs now
Lord Beckett and members of the EIT Co. spot the Black Pearl in the distance making its way towards land. As a
precaution, Lord Beckett orders a cannon to be shot towards Captain Jack Sparrow. The cannonball goes a horizontal
distance of 275 m after leaving the 100. m high cliff. If the cannonball was launched from horizontal, at what velocity
did it leave the cannon? At what velocity (resultant speed + angle) did it hit the sea? (Clearly, they missed the ship!)
Show work
Answer:
Explanation:
The cannonball goes a horizontal distance of 275 m . It travels a vertical distance of 100 m
Time taken to cover vertical distance = t ,
Initial velocity u = 0
distance s = 100 m
acceleration a = 9.8 m /s²
s = ut + 1/2 g t²
100 = .5 x 9.8 x t²
t = 4.51 s
During this time it travels horizontally also uniformly so
horizontal velocity Vx = horizontal displacement / time
= 275 / 4.51 = 60.97 m /s
Vertical velocity Vy
Vy = u + gt
= 0 + 9.8 x 4.51
= 44.2 m /s
Resultant velocity
V = √ ( 44.2² + 60.97² )
= √ ( 1953.64 + 3717.34 )
= 75.3 m /s
Angle with horizontal Ф
TanФ = Vy / Vx
= 44.2 / 60.97
= .725
Ф = 36⁰ .
What is the frequency of a wave that has a wavelength of 0.20 m and a speed of 22 m/s
Answer:
The frequency of the wave would come out to be 110 Hz.
Frequency is the number of completed wave cycles per second. By using the simplest frequency equation, f = 1 / T, you get the answer I provided above.
unit 2 Lesson 9: Temperature & Heat Unit Test does anyone have the answers
Explanation:
where is the question
I did not understood this question
Answers:
Here are the answers for the U2L9: Temperature & Heat Unit Test
1. Which describes how radiation moves?
B) Radiation moves from a warmer object to a cooler object
2. Which material most likely gets warmer when places in the Sun?
C) brown mulch
3. A thermogram of a house shows high amounts of thermal energy around the windows but not around the roof. Which conclusion is best supported by the thermogram?
C) The windows are not energy efficient, but the roof is.
4. Which best describes convection?
D) It is driven by temperature differences within a fluid.
5. A student heats a liquid on a burner. What happens to the portion of liquid that first begins to warm?
Any answer you choose is correct on Connexus (look at the screenshot)
6. Convection only occurs in ____.
B) fluids
7. Conduction involves the transfer of electric charge or ____.
A) thermal energy
8. A scientist designed a foam container to help keep frozen foods from melting. Which best explains how the foam works?
D) It reduces the amount of thermal energy that is transferred from the inside to the outside of the container.
9. The diagram shows movement of thermal energy. In which areas of the diagram does conduction occur? (look at the screenshot)
B) X and Z
10. Nuclear reactions in a reactor produce a lot of thermal energy. That energy then flows and warms up water, which boils and produces steam. The stream then turns turbines that generate electricity. Which statement below can be made about the production of electricity in a nuclear reactor?
B) Heat flows from the reactor to the water.
11. A stovetop burner on medium reaches 200° C. Which other objects will heat from the burner flow to?
Any answer you choose is correct on Connexus (look at the screenshot)
12. Heat transfer between two substances is affected by specific heat and the
D) amount of time and area of physical contact between the substances.
13. Which of these results in kinetic energy of an object?
B) motion
14. Carmen is heating some water and trying to measure the temperature of water using a Celsius thermometer. Which measurement can she expect once the water begins to boil?
B) 100° C
15. Which shows the formula for converting from degrees to Celsius to degrees Fahrenheit?
A) °F = (9/5 × °C) + 32
16. Which of these indicates that a liquid has transferred thermal energy to the air?
D) The liquid decreases in temperature, and its particles lose kinetic energy.
I took the test ALL of these answers are 100% correct on Connexus (they should be the same for everyone tho)
You're welcome and hope this helps!! :)
what is the exact speed of light
Answer:
3 × 10^8 meter/second
300000000 meter/second
flint glass materials
Answer:
Flint glass is combination of silicon dioxide (SiO2) with lead or potassium. It creates a relatively high refractive index and high degree of light dispersing power compared to other types of glass.
Explanation:
:)
Answer:Flint glass is combination of silicon dioxide (SiO2) with lead or potassium. It creates a relatively high refractive index and high degree of light dispersing power compared to other types of glass.
Explanation:
The
principle which allows a rainbow to form is
Explanation:
A rainbow is a meteorological phenomenon that is caused by reflection, refraction and dispersion of light in water droplets resulting in a spectrum of light appearing in the sky. It takes the form of a multicoloured circular arc. Rainbows caused by sunlight always appear in the section of sky directly opposite the sun.
Hope it helps You °_°
What is the final velocity of a running back that is moving with an initial velocity of 3 m/s and accelerates at a rate of 4 m/s2 in 1 seconds as he moves toward the defensive line?
Answer:
aa!aaaaaaaaaaaaaaaaaaaaaaaaaaaa
The following two graphs represent data from the same wave travelling due west through a particular medium. From the graphs determine: (a) the wavelength; (b) the amplitude; (c) the period; (d) the frequency and (e) the velocity of the wave
Answer:
i think i am late but b is 3
Explanation:
A point charge of 4 µC is located at the center of a sphere with a radius of 25 cm. Find the electric flux through the surface of the sphere. The Coulomb constant is 8.98755 × 109 N · m2 /C 2 and the acceleration due to gravity is 9.8 m/s 2 .Answer in units of N · m2 /C.
Answer:
Ф = 4.5176x10⁵ N . m² / C
Explanation:
In this case, we need to use two expressions in order to calculate the electric flux of the sphere.
First the Electric flux is calculated using this expression:
Ф = E * A (1)
Where:
E: Electric field
A: Area of the sphere
To get the electric field E, we use this expression:
E = K * q / r² (2)
If we replace (2) into (1) we have the following:
Ф = K * q * A / r² (3)
Finally, we need to know the expression to get the area of a sphere which is the following:
A = 4πr² (4)
Replacing into (3):}
Ф = K * Q * 4πr² / r² discarting r²:
Ф = K * Q * 4π (5)
Now, all we need to do is replace the given values and solve for the electric flux of the sphere:
Ф = 8.98755x10⁹ * 4x10⁻⁶ * 4 * π
Ф = 4.5176x10⁵ N . m² / CHope this helps
Universal Gravitation Problem Set
Highlight Given information in GREEN. Highlight what you are solving for in YELLOW.
Formula: Fg= G*M,*M,/d? G= 6.67 * 10-11 N*M°/Kg?
The distance between Earth and its moon is 3.84 x 10 meters. Earth's mass is
m = 5.98 x 1024 kilograms and the mass of the moon is 7.36 x 1022 kilograms.
What is the force between Earth and the moon?
Answer:
The force between Earth and the moon is 1.99x10²⁶ N.
Explanation:
The force between Earth and the moon can be found using the Gravitational Force equation:
[tex] F_{g} = \frac{Gm_{E}m_{m}}{d^{2}} [/tex]
Where:
d: is the distance between Earth and the moon = 3.84x10⁵ m
G: is the gravitational constant = 6.67x10⁻¹¹ Nm²/kg²
[tex]m_{E}[/tex]: is the Earth's mass = 5.98x10²⁴ kg
[tex]m_{m}[/tex]: is the moon's mass = 7.36x10²² kg
Hence, the force is:
[tex] F_{g} = \frac{Gm_{E}m_{m}}{d^{2}} = \frac{6.67 \cdot 10^{-11} Nm^{2}/kg^{2}*5.98\cdot 10^{24} kg*7.36\cdot 10^{22} kg}{(3.84\cdot 10^{5} m)^{2}} = 1.99 \cdot 10^{26} N [/tex]
Therefore, the force between Earth and the moon is 1.99x10²⁶ N.
I hope it helps you!
Need help guys please
Answer:
6.378 * 10^6 m
Explanation:
Radius = 6378 km
Changing in metres
6378 km = 6378000 m
Now in scientific notation
= 6.378 * 10 ^ 6 m
Consider a ball tossed from the ground into the air at 25 m/s. At a later time, the ball is measured to be moving downward at 11 m/s. a) Find how high the ball is off of the ground at the later time. b) Find the time interval between these two events. c) Sketch graphs of position, velocity, and acceleration versus time for the ball.
Answer:
The answer is below
Explanation:
a) According to Newton's law of motion, the distance travelled by a body going upward can be calculated using the formula:
v² = u² - 2gh
where v is the final velocity, u is the initial velocity, g is the acceleration due to gravity and h is the height of the ball.
g = 10 m/s², u = 25 m/s, v = 11 m/s
Substituting:
11² = 25² - 2(10)h
20h = 25² - 11²
20h = 504
h = 25.2 m
b) The time (t) can be gotten using:
v = u - gt
Substituting
11 = 25 - 10t
10t = 25 - 11
10t = 14
t = 1.4 s
c) the graph were plotted using an online graphing tool
Select the correct arrow.
Which arrow correctly shows the flow of heat?
Reset
Next
Answer:
where is the image?
Explanation:
Answer:
the first one
Explanation:
Use the graph one more time to help you with this question. Changes in both the North and South occurred due to the .
Answer:
industrial revolution
Explanation:
A hiker carries a 20 kg backpack up a trail. After 30 minutes he is 300 m higher than his starting point.
Answer:
d
Explanation:
I am smart
how was newton's laws used to solve problems on apollo 13 ship
Explain in two full paragraphs
Answer:
actually ships are made in newtons third law of motion.it states to every action there is equal and opposite reaction. curved is made in downwards to maintain upthrust and to made balance.
actually it prevents ships from drowning and to move with a heavy mass.
Differences between Variables and Data types
Answer:
A variable can be thought of as a memory location that can hold values of a specific type. The value in a variable may change during the life of the program—hence the name “variable.” In VBA, each variable has a specific data type, which indicates which type of data it may hold.
Explanation:
These are the definitions. You're welcome!
Answer:
each variable has a specific data type, which indicates which type of data it may hold.
:D
Need some help please answer please
Answer:
Its not d or e
Explanation:
Determine the position of a train moving at 45 m/s after 5 minutes.
The train has covered 13,500 meters of track.
We don't know its position, because we don't know where it started from, and we don't know how straight the track is.
Snow and sleet when they fall to the ground is solar energy or gravitational force?
Gravitational energy
Snow and sleet when they fall to the ground is gravitational force.
What are snow and sleet ?"While snow, sleet and freezing rain are familiar precipitation types to most people, one that may be lesser known is graupel, also known as snow pellets. Graupel forms when snowflakes are coated with a layer of ice. Graupel is typically white and opaque. A comparison of sleet and graupel."
What is gravitational force ?"According to Newton's universal law of gravitation, The force of attraction between any two bodies is directly proportional to the product of their masses and is inversely proportional to the square of the distance between them."
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How quickly would a 60kg object accelerate if the person applied a 500N force?
Answer:
acceleration =
[tex]8.33ms {}^{ - 2} [/tex]
Explanation:
we know,
force = mass × acceleration
500 = 60 × aa = 500 / 60a = 50 / 6a = 8.33 m/s^28.33 m/s² quickly would a 60kg object accelerate if the person applied a 500N force.
Describe acceleration:Acceleration the rate at which speed and direction of a moving object vary over time. A point or object moving straight ahead is accelerated whenever it accelerates or decelerates. Even if the speed remains constant, motion on the a circle accelerates so because direction is constantly shifting.
Can an acceleration be negative?An item that is slowing down will always have a negative acceleration if the current direction of motion is constantly selected as positive.
Briefing:Force = mass × acceleration
500 = 60 × a
a = 500 / 60
a = 50 / 6
a = 8.33 m/s²
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3) What is the weight of an object with a mass of 5.2 kilograms?
Answer:
50.96 N
Explanation:
weight = mass x gravity
We know that gravity = 9.8 m/s^2 and mass = 5.2 kg.
w = m x g
w = 5.2 kg x 9.8 m/s^2
w = 50.96 N
The weight of the object is 50.96 N (newtons). Hope this helps, thank you !!
An object is traveling with a constant speed of 35 m/s. How long does it take to cover 770 m?
Answer:
22 s
Explanation:
time = distance / velocity
We know that distance = 770 m and velocity = 35 m/s.
t = d / v
t = 770 m / 35 m/s
t = 22 s
It takes 22 seconds to cover 770 m. Hope this helps, thank you !!
A parcel has a mass of 500 g .calculate its weight (assume the gravitational field strength is 10 N/Kg
Answer:
5N
Explanation
convert grams to kg and multipy with 10 (.5 *10)=5N
Identify the type of information scientists gather from each image. Drag the tiles to the correct boxes to complete the pairs.
Answer:
The bar of colors = Chemical composition of stars
All the blue stars, (image 2) = Distance of stars
All the different color stars =Temperature of stars
Explanation:
I did this same exact thing just now and i got it correct.
Example of centrifugal force
(wrong answer will get reported)(right answer will get brainliest)
Vehicle driving round a curve