Answer:
The answer is gravity
Explanation: Hope this helps:)
SORRY LAST ONE FOR TODAY, IM GOING TO PASS IF I GET THIS ANSWERED
A cannon fires a cannonball directly upwards at +150m/s. How long does it take for the cannonball to reach maximum height?
Answer:
According to the Given Statement
Canon fires directly upwarda at 150m/s ( Initial speed, u )
Acceleration due to gravity is 10m/s²
Since Cannon ball reach it maximum height so its final velocity v will be 0 m/s .
Using Kinematic Equation
v = u + gtOn substituting the value we get
➥ 0 = 150 + 10 × t
➥ 150 = 10 × t
➥ 150/10 = t
➥ 15 s = t
So, it will take 15 seconds .
Answer:
maximum height reached: 15 s
Explanation:
using the formula: maximum height reached = [(sin(θ) * speed)/ gravity]
Here speed is 150m/s and gravity is 10 m/s² and as it does directly upwards, it has an angle of 90°
using the formula:
maximum height reached = [(sin(90) * 150)/ 10] = 15 s
QUESTIONS: 1 In your list, what skill you find more difficult during your execution? Explain your answer 2. Do you believe that during your executions all types of energy systems are working together? Explain your answer 3 What other observations you experienced while performing your listed skats in your sport (Pulse rate increase, Short of breath, muscle pain, etc)?
Locomotor skills are energy intensive and the pulse rate increases, shortness of breath ensues and pain increases in the muscle due to build up of lactic acid.
What are skills in sport?Skills are abilities that are acquire through training and practice such the athlete is able to execute them effectively and efficiently.
Some skills that can be acquired in sports include:
locomotor and non-locomotor skills such as running, leaping and jumping.object control skills such catching and throwing.Learning a skill requires energy input.
Locomotor skills require the highest energy input.
During the learning of intensive skills such as locomotor skills, the pulse rate increases, shortness of breath ensues and pain increases in the muscle due to build up of lactic acid.
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The wavelength of a radio wave in a vacuum is 295 meters. Calculate its wavelength in water? (nwater = 1.33)
The wavelength of the radio wave in water is 222nm
Calculating radio wave in waterThe relationship between the refractive index wavelengths in a vacuum and in water is given by:
n = λ1/λ2
So,
let λ1 be the wavelength of light in a vacuum
λ2 be the wavelength of light in water.
nwater = 1.33
Plugging in values, we have
n = λ1/λ2
1.33 =295 m /λ2
λ2 = 295 m/1.33
= 221.80nm
≈222nm
Therefore the wavelength of radio wave in water is 222mn.
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Need Help very important i will mark who gets this right brainiest.
PLEASE HELP!
Will Mark Branliest
Calculate the speed of a wave that has no frequency of 3.50 HZ a wavelength of 1.75cm and an Amplitude of 4.25.
Answer:
I'll assume that "no frequency of 3.50 Hz" is supposed to read "a c frequency of 3.50 Hz"
Explanation:
A wave's speed is given by Speed = Distance/Time.
In this case the distance and time are provided: The wavelength is 1.75cm and the time between each wave is (1/3.50) seconds/cycle. That is, the wave travels 1.75 cm every (1/3.50) or 0.2857 seconds. The amplitude has no bearing on this calculation, unless it is 6.5 km high and in your lab.
In that case we'd like to know how much time we have before it reaches us across the 10 m room.
(Distance)/(Time) = 1.75 cm)/(0.2857 sec) = 6.125 cm/second is the speed of the wave.
For a 10 meter room (1000 cm), that would give us (1000cm)/(6.125 cm/sec) = 163 seconds to reach and close the exit door.
which would cause a greater change in energy of motion doubling the weight or doubling the speed why
Answer:
Doubling the speed.
E - M v^2
M = W / g energy is proportional to weight
But energy is proportional to v^2
List the three things forces are needed for on Earth.
List the three things forces are needed for on Earth.
LiftThrustdragweightI added another one just cause there's four things forces are needed for on earth :-)
PLS HELP
Bill is riding his bicycle at 3.2 m/s. He accelerates at 0.53 m/s2 over a period of 1.2 seconds.
What is Bill's final velocity in m/s?
V(final) = V(initial) + a•t
Take the numbers you know, pluggum in, and you should get 3.836 m/s .
Note: This is just the final speed. Without any direction information, there's no way to find the velocity.
What is the kinetic energy of a bicycle with a mass of 14 kg traveling at a
velocity of 3.0 m/s?
46.6666 that is the mass number
Explanation:
14 divided 3.0
A woman wearingg shoes with stiletto hells weigh 550n andvthe area of heels is 1cm2 find the pressure
P = F : A
[tex]\tt P=\dfrac{550~N}{0,0001~m^2}=5.5\times 10^6~Pa[/tex]
PLEASE HELP ME!!!
Which statements describe French control of its colonies? Choose four correct answers.
France established a system of direct rule.
France encouraged Africans to assimilate into French culture.
France granted equal rights to all Africans.
France allowed Africans to benefit from their natural resources.
France encouraged Africans to adopt French traditions.
France weakened the power of black Africans.
The French encouraged the African people to take on the culture of the French.
What are colonies?Colonies refers to areas which the Europeans allocated to themselves after they occupied Africa in the 18th to 19th centuries. They ruled these areas directly until they eventually secured independence.
The following are the statements that describe the French control of its territories;
France encouraged Africans to assimilate into French culture.France weakened the power of black Africans.France encouraged Africans to adopt French traditions.France established a system of direct rule.Learn more about French rule:https://brainly.com/question/3067618?
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what is the amount of energy associated with a photon that has a frequency of 1000 Hz?
So, the amount of energy associated with a photon that has a frequency of 1000 Hz is [tex] \boxed{\sf{6.626 \times 10^{-31} \: J}} [/tex]
IntroductionHi ! Here, I will help you to explain the material about photon energy. Photon energy is the energy carried by electromagnetic waves as they propagate. Photon energy is generally affected on frequency (the higher the frequency value, the energy will greater too) or wavelengths (the higher value of the wavelengths, the energy will smaller). So, based on the two concepts above, this is the following equation :
By the Frequency
[tex] \boxed{\sf{\bold{E = h \times f}}} [/tex]
By the Wavelengths
[tex] \boxed{\sf{\bold{E = h \times \frac{c}{\lambda}}}} [/tex]
With the following condition :
E = foton energy (J)h = Planck constant ≈ [tex] \sf{6.626 \times 10^{-34} \: J.s} [/tex] c = the constant of the speed of light in a vacuum ≈ [tex] \sf{3 \times 10^{8} \: m/s} [/tex] m/sf = frequency of electromagnetic wave (Hz)[tex] \sf{\lambda} [/tex] = wavelength (m)Problem SolvingWe know that :
h = Planck constant ≈ [tex] \sf{6.626 \times 10^{-34} \: J.s} [/tex] f = frequency of electromagnetic wave = 1,000 Hz = 10³ Hz.What was asked :
E = foton energy = ... JStep by step :
[tex] \sf{E = h \times f} [/tex]
[tex] \sf{E = 6.626 \times 10^{-34} \times 10^3} [/tex]
[tex] \boxed{\sf{E = 6.626 \times 10^{-31} \: J}} [/tex]
ConclusionSo, the amount of energy associated with a photon that has a frequency of 1000 Hz is [tex] \sf{6.626 \times 10^{-31} \: J} [/tex]
Have you ever felt a shock sliding down a plastic slide (like in a McDonald’s Play Place)? Do you think this is related to electricity? How?
Answer:
Yes because while you slide down the slide you are obviously going to wear clothes and the cotton on your clothes rubbing up against that rubber from the slides, are gonna react by sending a static electricity shock feeling to your body
Explanation:
Answer:
The same effect can be observed on other non-conductive, polymer surfaces like the mesh of a trampoline. If it is sitting in the sun for a while, you can feel the static charge on it when you approach it, even if no one has been on it recently (so it's not just from friction of users' clothing).
Explanation:
There are always stray electrons flying around, everywhere. The plastic of the slides (and other, non-conductive materials) tend to build up spare electrons just from the air currents moving over them, so its not really the sun that makes them collect charge. As the air around the plastic heats up, it loses its density and humidity, meaning that electrons that were sitting on or close to the plastic get stuck there. Air flowing over the plastic deposit more electrons. As the air cools after the sun goes down (or if it gets cloudy enough), the air around the plastic becomes more dense and can hold more humidity, which means that the electrons can be carried away by stray ions faster, and the amount of excess charge decreases.
covert 1000 kg/m3 into 1g/cm3
Answer:
1 g/cm³
Explanation:
1 kg = 1000 g
1 cm = 0.01 of a meter
1 m³ = 100 cm * 100 cm * 100 cm = 1,000,000 cm
1,000 kg / 1 * 1000 g / 1 kg
^ divided by 1,000,000 cm
1,000,000 divided by 1,000,000 = 1 g/cm³
a roller skater starts from rest (velocity initial=0m/s) and speeds up a final velocity (10m/s) what is the acceleration during a time of 2 seconds
Answer:
10-0÷2=5 that's the answer
Question 10 of 10
Magnetic striping is evidence of
A. pole reversals
B. Earth's rotation
C. Jupiter's magnetosphere
D. the Van Allen belts
SUBMIT
Answer:
A. pole reversals
Explanation:
It's an evidence of magnetic pole reversal of Earth & sea-floor spreading.
Hope this helps!
Magnetic striping is evidence of seafloor spreading and pole reversals. Hence, option A is correct.
What is sea floor spreading?The notion that oceanic crust develops along submarine mountain zones, commonly known as the mid-ocean relevant standard, and expands out laterally away from them. This concept was crucial in the creation of the doctrine of plate tectonics, which transformed geologic thought in the last quarter of the twentieth century.
Shortly after World War II, sonar-equipped warships crisscrossed the oceans, gathering ocean-depth profiles of the seafloor underneath them. The survey data was used to create bas-relief maps of the ocean floor, and by 1953, American oceanic mapmaker Marie Tharp had created the first of many maps that revealed the presence of an underground mountain range of more than 16,000 km (10,000 miles) long in the Coast Mid-Atlantic Ridge.
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The current flowing through a lamp is 1. 5 A. It is plugged into a 120 V outlet. What is the resistance of the lamp? Ω.
Answer:
80 [Ω].
Explanation:
according the formula I=U/R, where U=120[V], I=1.5[A], the required resistance can be calculated
[tex]R=\frac{U}{I}; \ => \ R=\frac{120}{1.5}=80[Ohm].[/tex]
If a spaceship weighs 2500kg and is traveling at the speed of light, how much energy does the ship have?
Answer:
Explanation:
KE = 1/2mv²
speed of light = 299,792,458
≅300,000,000 m/s
KE = 1/2 X 2500kg x 300,000,000²
PLEASE PLEASE HELP ME WITH THIS
The bending of a wave through an opening in a barrier is:
refraction
resonance
diffraction
interference
How are alloys different than metallic elements?
While alloys are melted mixtures of two or more metals, true metals are unadulterated components. Due to their tendency to be shinier, heavier, and harder than the majority of materials, as well as the fact that they are great heat- and electricity-conductors, metals, and alloys are simple to differentiate from nonmetals.
What are alloys?As a compound or a solution, an alloy is a metallic material made up of two or more elements. Although carbon, a nonmetal, is a crucial component of steel, alloys typically contain metals as their own constituents.
Typically, the mixture of elements is melted to create an alloy. In very early periods, the value of alloys was discovered; brass (copper and zinc) and bronze (copper and tin) were particularly significant.
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The mass of the car is 800kg.Force A increases to 5000 N. This causes the car to accelerate initially at 1.5 m/s^2. Calculate the size of force B.
The size of force B is 3800 N.
What is force?This can be defined as the product of the mass and acceleration of a body.
From the diagram attached,
Formula:
Fa-Fb = ma................... Equation 1Where:
Fa = Size of Force AFb = Size of Force Bm = mass of the cara = Acceleration of the carmake Fb the subject of the equation
Fb = Fa-ma................ Equation 2From the question,
Given:
Fa = 5000 Nm = 800 kga = 1.5 m/s²Substitute the given values into equation 2
Fb = 5000-(800×1.5)Fb = 5000-1200Fb = 3800 N.Hence, The size of force B is 3800 N.
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On average, how many times a month can we see a full moon?.
Answer:
Once
Explanation:
The time between new moon and the end of the cycle of the moons is about 29.53 days, which is roughly a month
A 0.137 kg mass on a string
is swung in a vertical circle of radius
0.400 m. At the top of the circle, it
moves at 2.33 m/s. What is the
tension in the string at that point?
(Unit = N)
https://brainly.com/question/26500837
Answer:
.516
Explanation:
I typed this into Acellus and it was correct.
If you put something like cardboard between the magnet and the nail, the magnet will still hold the nail in place even if the magnet doesn't touch the nail.
Answer:
Magnetic-field lines pass through cardboard, air, and certain other materials, depending on whether they're permeable or nonpermeable. Test different materials to see which gather magnetic lines of force and act as magnetic shields, and which allow magnetic lines of force to pass through them.
What I Know Directions: Read and understand the questions below. Choose the letter of the best answer, Write the chosen letter on a separate sheet of paper. 1. Which of the following is abasic unit of distance?
A inch
B. feet
C. meter
D. yard
(science)
you know that there are 1609 meter in a mile. the number of feet in a mile is 5280. what is the speed snail from problem 7 per minute.
Answer:
We know that 1 meter = 100 centimeters, and 1 foot = 12 inches.
So (1,609 meters) x (100 centimeters/meter) = (5,280 feet) x (12 inches/foot)
The second fraction on each side of the equation is equal to ' 1 ', because
the numerator is equal to the denominator, so sticking it in there doesn't
change the value of that side of the equation. But now we can cancel some
units,and wind up with the units we need.
(1,609 meters) x (100 centimeters/meter) = (5,280 feet) x (12 inches/foot)
(1,609 x100) centimeters = (5,280 x 12) inches
160,900 centimeters = 63,360 inches
Divide each side by 63,360 : 2.54 centimeters = 1 inch
Explanation:
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Answer: Sorry the pic is too blurry try making the resolution higher
which of the following statement is correct?
a. Reflecting telescope uses convex lenses while refracting telescopes uses concave lenses.
b. both telescopes are using the combination of concave and convex lenses.
c. Reflecting telescope uses a concave lenses while refracting telescopes uses convex lenses.
d. None of the the statements above are correct.
Answer:
D. None of the the statements above are correct.
Explanation:
Microscopes and telescopes are major instruments that have contributed hugely to our current understanding of the micro- and macroscopic worlds. The invention of these devices led to numerous discoveries in disciplines such as physics, astronomy, and biology, to name a few. In this section, we explain the basic physics that make these instruments work.
Answer:
d. is the answer hope it helps