Answer:
shreya Sister's answer is correct hope it's help you have a good day
Calories tell you how much energy is in a food. True or False
Answer:True. The number of calories in a food is a measure of how much potential energy that food possesses.
Explanation:
PLEASE HELP ME WITH THIS ONE QUESTION
The speed of sound at an elevation of 40,000 feet, where many aircraft fly, is 295 m/s. If an airplane is flying at Mach 0.92 at this altitude, how fast is the airplane traveling in meters per second?
Answer:
The plane travels at a rate of 313 meters per second.
Explanation:
Since the speed of sound at an elevation of 40,000 feet, where many aircraft fly, is 295 m / s, if an airplane is flying at Mach 0.92 at this altitude, to determine how fast is the airplane traveling in meters per second you must perform the following calculation:
1 Mach = 1,225.04 km / h
1 km = 1,000 m
1 h = 3,600 sec
1 = 1225.04
0.92 = X
0.92 x 1225.04 = X
1,127.03 = X
(1,127.03 x 1,000) / 3,600 = X
1,127,030 / 3,600 = X
313.06 = X
Thus, the plane travels at a rate of 313 meters per second.
How does wavelength change depending on whether the pipe is open or closed?
Answer:
* in a tube with both ends open
λ = 2L / n n = 1, 2, 3,…
* tube with one end open and the other closed.
λ = 4L / n n = (2n ’+ 1 )
Explanation:
When a sound wave enters a pipe, a resonance process occurs, whereby only some wavelengths can occur.
* in a tube with both ends open
in this case there are maximums at each end, so if the length of the had is L
λ = 2L 1st harmonic
λ = 2 L / 2 2nd harmonic
λ = 2L / 3
λ = 2L / n n = 1, 2, 3,…
* In the case of a tube with one end open and the other closed.
At the open end there is a belly and at the closed end a node
λ = 4L 1st harmonic
λ = 4L / 3 3rd harmonic
λ = 4L / 5
λ = 4L / n n = 1, 3, 5,… odd
n = (2n ’+ 1 ) where n’ are all integers
A train is traveling at a constant rate of speed of 64 kilometers per hour. How many
hours will it take the train to travel a distance of 160 kilometers?
Please provide the units with it
Answer:
2.5 hours
Explanation:
we know that the train travels 64km every hour so we just need to divide 160km by 64km to see how many hours it will take
160÷64= 2.5
hope this helps chu :3
An automatic shotgun has a mass of 10 kg. It fires 30 g bullets at the rate of 6 bullets per second with a speed of 400 m/s. What force must be applied to the gun to keep it in position?
Answer:72 N
Explanation: thats whats right
Directions: Name 2 kitchen tools, equipment or materials you are going to
store or stack in the following drawers and cabinets.
1. Flat drawer
2. Upper cabinet
3. Small drawers near countertops
4. Lower cabinets
pa answer po 4 star sa sasagot
po
Answer:
silverware and tupperware?
What is the distance of a person walking 20 m North, and then walks 20
meters South?
Answer:
40m
Explanation:
distance = length traveled = 20+20 = 40
What do we call a collection of matter that does not interact with anything
else in the universe?
A. The forces that act in a collision
B. An intergalactic highway
C. An isolated system
D. A system in which collisions always occur
Answer: an isolated system
Explanation:
How many phase conductors are installed between the switch and the light fixture shown in the figure? A. Four
B. Three
C. Two
D. Five
Answer:
TWO
Explanation:
What problems do you think might arise from not having a clear definition of "high crimes and misdemeanors"?
Answer:
People might misunderstand it and problems might happen because the audience will have different opinions.
Explanation:
An open pipe is 1.42 m long.
What is the third harmonic
frequency that it produces?
(Speed of sound = 343 m/s)
(Unit = Hz)
please help me guys will give brainliest and lots of points
Answer: The 180-Hz sinusoid is called the third harmonic, since its frequency is three times that of the fundamental frequency.
Explanation: Harmonics are integer multiples of the fundamental frequency. For example, if the fundamental frequency is 50 Hz (also known as the first harmonic) then the second harmonic will be 100 Hz (50 * 2 = 100 Hz), the third harmonic will be 150 Hz (50 * 3 = 150 Hz), and so on.
While at the county fair, you decide to ride the Ferris wheel. Having eaten too many candy apples and elephant ears, you find the motion somewhat unpleasant. To take your mind off your stomach, you wonder about the motion of the ride. You estimate the radius of the big wheel to be 15 m, and you use your watch to find that each loop around takes 23 s.A. What is your speed?
B. What is the magnitude of your acceleration?
C. What is the ratio of your weight at the top of the ride to yourweight while standing on the ground?
D. What is the ratio of your weight at the bottom of the ride toyour weight while standing on the ground?
Answer:
Explanation:
From the given information:
radius = 15 m
Time T = 23 s
a) Speed (v) = [tex]\dfrac{2 \pi r}{T}[/tex]
[tex]v = \dfrac{2\times \pi \times 15}{23}[/tex]
v = 4.10 m/s
b) The magnitude of the acceleration is:
[tex]a = \dfrac{v^2}{r} \\ \\ a = \dfrac{(4.10)^2}{15}[/tex]
a = 1.12 m/s²
c) True weight = mg
Apparent weight = normal force
From the top;
the normal force = upward direction,
weight is downward as well as the acceleration.
true weight - normal force = ma
apparent weight =mg - ma
[tex]\dfrac{apparent \ weight}{true \ weight} = \dfrac{(mg - ma)}{(mg)}[/tex]
[tex]=1- \dfrac{1.12}{9.8}[/tex]
= 0.886 m/s²
d)
From the bottom;
acceleration is upward, so:
apparent weight - true weight = ma
apparent weight = true weight + ma
[tex]\dfrac{apparent \ weight }{true \ weight} =\dfrac{ mg + ma}{mg}[/tex]
[tex]\dfrac{apparent \ weight }{true \ weight} =1+ \dfrac{a}{g} \\ \\ = 1 + \dfrac{1.12}{9.8}[/tex]
[tex]= 1 + \dfrac{1.12}{9.8} \\ \\[/tex]
= 1.114 m/s²
What ideas do you have about what determines how currents like this move?
Will give brainliest
Magnesium in group 2 has an oxidation number of +2. Which group would it easily react with?
Group 13
Group 1
Group 18
Group 16
Answer:
I think 18 not entirely sure though
Explanation:
Group 18 are the noble group so 16 + 2 = 18
QUESTION 1
The two human thighbones (femurs) each have a cross-sectional area of 10 cm and they support
the upper part of a human body of mass 40kg. Calculate the average pressure sustained by each of
the femurs. (1mk)
Answer:
2 * 10^5 pa
Explanation:
Pressure = Force / Area
Each thigh bone has a cross sectional area of 10cm²
Both thigh bones :
2 * 10cm² = 20cm²
To m² : 20 * (0.01)²
20 * 0.0001 m² = 0.002 m²
Force = mass * acceleration due to gravity(g)
g = 10m/s² ;
Force = 40 * 10 = 400N
Pressure = 400 N / 0.002 m²
Pressure = 200,000 N/m² = 2 * 10^5 pascal
Green light (525 nm) passes through a
diffraction grating with d = 3.33 x 10-6 m.
What is the angular separation between
the first (m = 1) and second (m = 2)
maximum?
[?]°
Remember: nano means 10-9
Answer:
9.33
Explanation:
Answer:
9.33
Explanation:
Acellus
Give 5 star is correct
Antonym for Radiation lol
Answer:
convergence is the correct answer
Answer:
absorption, concealment, containment, refrain, repression, suppression, withholding, confinement, restriction, constraint
wait no....
diffusion, emission, polarization, spread, ramification, divarication, propagation, transmission, broadcast, circulation and dissipation.
LOL
Write in the word "stronger" or "weaker." The bigger and
heavier an object is, the
the force of gravity
between them.
Answer:
weaker has the heavier of an object
Researchers aboard the International Space Station use the latest technology to advance our understanding of which concept?
soil and rocks
health and medicine
electromagnetic spectrum
radio waves in space
Researchers aboard the International Space Station use the latest technology to advance our understanding of health and medicine. option B. This is further explained below.
What is health?Generally, wellness refers to a condition of absence of disease or harm.
In conclusion, The newest technological advances in health and medicine are being used by researchers on board the International Space Station. choice B
Read more about health
https://brainly.com/question/13179079
#SPJ1
Answer: health and medicine
Explanation:
this is what I need help with
Answer: transverse wave
Explanation: the particles are moving up and down
A boundary with a small opening. There is a vector straight from the opening labeled D and an angle labeled theta to another ray, both striking a surface with a red point. The distance between the two red points is labeled y. A laser diffraction pattern results in y = 6.0 cm, and the distance from the gap to the screen is D = 12 cm. The tangent of θ would be equal to . Calculating the inverse (tan–1) of the value for the tangent of θ would give us a diffraction angle, θ, of degrees.
Answer:
The tangent of θ would be equal to 0.5
Calculating the inverse (tan–1) of the value for the tangent of θ would give us a diffraction angle, θ, of 27 degrees.
Explanation:
edge 2021
A deer is walking at 2.27speeds up to 13.42 m/s, covering a distance of 53.2 meters during this acceleration. How much time did it take him to do this.
Answer:
t=3.964s
Explanation:
Use t=d/s
t=53.2m/13.42m/s= 3.964s
why does a ball at a higher height bounce more than a ball at a lower height when dropped?
Explanation:
let us asume 2 balls here,
ball 1 and ball2
ball 1 is dropped from the lower hight
which means it's potential energy is low,where as the ball2 is dropped from higher height
and potential energy is higher than the ball 1which means ball2 has more force
by newton's 3rd lawwhich is, to every action there is an opposite reaction!
thus ball2 will bounce more!
What is the speed of a Ball rolling South 50 meters in 2 seconds?
Answer:
25m/s
Explanation:
speed = distance/time = 50/2 = 25
What is the mass of a 5kg object on the Moon?
The mass of a 5kg object is 5kg. Makes no difference where it happens to be located.
Answer:
The mass of a 5kg object is 5kg
Explanation:
Have a great day
a quality of the substance that never changes and can be used to identify the substance
true or false: electromagnets are an example of how magnetism can create electricity.
true or false: electromagnets are an example of how electricity can create magnetism.
true or false: electromagnetic induction is where we use magnetism to create electricity.
true or false: you can change the amount of strength that an electromagnet has.
true or false: iron fillings can be use to show magnetic field lines around bar magnets but not around electromagnets.
I dont really know but i think the first one is true super sorry
Electromagnets are an example of how electricity can create magnetism is True statement.
What is Electromagnet?Permanent magnets are not the same as electromagnets. Coils of wire with electricity running through them make up electromagnets. An electromagnet's wire coils act like magnets when an electric current flows through them because moving charges produce magnetic fields.
The coils stop functioning as a magnet when the electricity is turned off. When magnetic forces are only required for brief periods of time, electromagnets are frequently used in electrical equipment.
They both make use of electromagnets, which use electricity to apply a magnetic field. Extremely strong electromagnets are used by wrecking yards to transfer heavy scrap metal or even entire cars from one location to another.
Therefore, Electromagnets are an example of how electricity can create magnetism is True statement.
To learn more about Electromagnet, refer to the link:
https://brainly.com/question/3427992
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what's the formula to calculate the radius of pendulum bob
Answer:
The combination, L = I / (m * R) , that appears in the equation for the period of a physical pendulum, is called radius of oscillations
Hope this helps :]
PLEASE HELP!!!! WILL GIVE BRAINLIEST!!!!
Do you think that Franklin actually performed the kite experiment? Why or why not?
Answer:
He not only hypothesized that lightning and electricity were linked, but that metal objects could be used to draw lightning in order to protect homes from being hit. But Franklin didn't feel that he could get his conductor high enough into the clouds to do any good, so he never completed the experiment.
Explanation:
there ya go :)
What would the volume of a gas be at –125oC, if it had a volume of 693 mL at 45oC?
Answer:
322.5mL
Explanation:
According to Charles's law, which state that at constant pressure the volume of fixed mass of a gas is proportional directly to it's temperature.
This can be expressed as
V1/ T1 = V2 / T2
Where
V1= initial volume= 693 mL
V2= final volume
T2= final temperature=( –125°C + 273)= 148K
T1= initial temperature= (45°C+ 273)=318K
V1/ T1 = V2 / T2
693/318 = V2/148
693×148 = 318 × V2
V2=102564/318
= 322.5mL