Answer:
80 kg.m/sExplanation:
The momentum of an object can be found by using the formula
momentum = mass × velocity
From the question
mass = 20 kg
velocity = 4 m/s
We have
momentum = 20 × 4 = 80
We have the final answer as
80 kg.m/sHope this helps you
Umm please help?? Please right it on your own words so I don’t get in trouble.
The photo shows a skateboarder pushing her foot against the ground as she rides down a hill. How does this action cause the skateboarder's speed to change?
OFFERING BRAINLIEST PLS RESPOND ASAP
science
Answer:
it increases the net force pointing down the hill, so she speeds up
Explanation:
Science 6.4.2
it took David 2 seconds to lift a 5 Newton bag of toys from the floor to the top of the top shelf, which is 3 meters tall. How much power did David use?
A. 3.3 W
B. 6.1 W
C. 7.5 W
D. 14 W
A star with a mass like the Sun which will soon die is observed to be surrounded by a large amount of dust and gas -- all material it has expelled in the late stages of its life. If astronomers want to observe the radiation from such a giant star surrounded by its own debris, which of the following bands of the spectrum would be the best to use to observe it?
a. gamma-rays
b. x-rays
c. ultraviolet
d. infrared
e. very long wavelength radio waves
Answer: D. Infrared
Infrared is the best way to observe it.
what color of light does a low-pressure sodium street lamp give off?
Answer:
Yellow Light
Explanation:
Low-pressure sodium lamps gives of a yellow/orange light/glow. Which can also be said as monochromatic yellow light. Because they only produce a single wavelength of yellow light, which results in a less intense light output.
Hopefully this is right! :D good luck
Why does plasma challenge what we know about matter? How does it confirm what we already know?
Being made of charged particles, plasmas can do things gases cannot, like conduct electricity. And since moving charges make magnetic fields, plasmas also can have them. In an ordinary gas, all the particles will behave roughly the same way. Auroras, lightning, and welding arcs are also plasmas; plasmas exist in neon and fluorescent tubes, in the crystal structure of metallic solids, and in many other phenomena and objects. The Earth itself is immersed in a tenuous plasma called the solar wind and is surrounded by a dense plasma called the ionosphere.
Plasma is a type of matter in which many electrons freely roam around the nuclei of atoms.
What is plasma?Although plasma is commonly thought of as a subset of gases, the two states behave very differently. Plasmas, like gases, have no definite shape or volume and are denser than solids or liquids.
Plasma is a sort of matter in which numerous electrons freely roam around the nuclei of atoms.
Plasma has been described as the fourth state of matter, alongside solid, liquid, and gas.
Normally, electrons in a solid, liquid, or gaseous sample of matter remain bound to the same nucleus.
Thus, plasma is considered a distinct phase because it does not conform to the standard descriptions and physical laws that are used to describe the standard three states of matter.
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1. The longest banana split ever made was 8.04 km long (needless to say, more than one banana
was used). If an archer were to shoot an arrow horizontally from the top of Mount Everest, which
is located 8848 m above sea level, would the arrow's horizontal displacement be larger than 8.04
km? Assume that the arrow cannot be shot faster than 100.0 m/s, that there is no air resistance,
and that the arrow lands at sea level.
Answer: If an archer were to shoot an arrow horizontally from the top of Mount Everest, which is located 8848 m above sea level, would the arrow's horizontal
Explanation:
EASY 35 POINTSSSSS PLSSSSSSSS
i just need notes on food weds so what ever u find just put on the answer
Answer:
the predator or tertiary consumer is not eaten except by saprophytes and maybe vultures, feeding starts from the green plants or producers going through a complex energy transfer
what's the answer? and is my answer correct?
Answer:
it's correct
Explanation:
answer is 3.6
What is the period of an object that makes 20 revolutions a minute?
Is it 4 seconds or is it 5 seconds or is it 2seconds or is it 3 seconds?
Answer: 3 seconds
Explanation: I hope this helps!
please answer quick, i’ll give brainliest!
Answer:
3 seconds
Explanation:
30/10=3
PLEASE HELP ASAP! WILL GIVE BRANLIEST! Pay attention to what happens to the things around you as you go about your day. Describe three examples of Newton’s third law in action. In your examples describe the action and the equal and opposite reaction.
Answer:
jumping, pulling a elastic band, bouncing a ball
Explanation:
when you jump, your legs apply a force to the ground, and the ground applies and equal and opposite reaction force that propels you into the air.
When we pull an elastic band, it automatically returns to its original position. The more you pull the more force it generates. This is the same when you pull or compress a spring. The action (applied force) is stored as energy and is released as a reaction with an equal and opposite force
A ball is able to bounce because of the reaction from the ground. If there was no reaction then the ball would not bounce but rather stick to the ground.
Around age 60, Alex's lens entirely lost its capacity to adjust to objects at varying distances. Alex has a condition called
There are various conditions usually associated with the eyes. Most are eye defects and this include, glaucoma, presbyopia, myopia, hypermetropia and the likes.
Around age 60, Alex's lens entirely lost its capacity to adjust to objects at varying distances developing the presbyopia condition.
Presbyopia is a genetic condition that affects the eye. It is also an age-related condition. In this case, the eye lens cannot change its shape easily as compared to when young. It occurs when the eye lose its ability to focus on objects at various distance producing blurry images.Learn more about presbyopia: https://brainly.com/question/24303969
Given the mass of the yo-yo is m and the length of the string (radius of the circle traced by the yo-yo) is L, you find the moment of inertia to be I. If you double the length of the string, what is the new moment of inertia
An object has a mass of m and a weight of w moon whole it is on the moon where the acceleration due to gravity is 1.6mls 2 what will be the weight of the object when it is brought to the earth
Answer:
calculate with yhis formula "w=m×g
Fill in the blank to balance the equation: ___ AgI + Na₂S → Ag₂ + 2NaI
Answer:2AgI + Na2S → Ag2S + 2NaI I am pretty sure this is the answer
Explanation:
What is the average speed of an object that travels 6 meters in 2 seconds and then travels 3 meters in 1 second?
Answer:
3 m/s
Explanation:
Average Speed = [tex]\frac{Total Distance}{Total time}[/tex]
Plug in the numbers, it will be (6m + 3m) divided by (2s + 1s), which is 9m/3s, which equals to 3m/s.
A roller coaster is at the top of a 102 m hill and a mass of 120 kg. The coaster (at this
moment) has
energy.
[tex]\\ \sf\longmapsto P.E=mgh[/tex]
P E means potential energy[tex]\\ \sf\longmapsto P.E=102(120)(10)[/tex]
[tex]\\ \sf\longmapsto P.E=122400J[/tex]
I NEED ANSWERS ASAP!!!!! Suppose you apply a force of 75 N to a 25-kg object. What will the acceleration of the object b? (Remember a=F/m)
225 m/s2
25 m/s2
3 m/s2
25N
Answer:
C. 3m/s^2
Explanation:
a car is moving at a constant speed of 100 miles per hour for 2 hour. how far does the car travel?
a. 200 miles
b. 100 miles
c. 2 miles
d. 50 miles
Answer: a) 200 miles because your doing 2 hours and each hours is 100 miles :)
A kickball is kicked straight up at a speed of 22.4 m/s. How high does it go?
Answer:
25.6 meters
Explanation:
have a good day
A weightlifter raises a 180-kg barbell to a height of 1.95 m. How much work is done by the weightlifter in lifting the barbells
P= 10m = 10 x 180 = 1800 N
work is done by the weightlifter in lifting the barbells :
A= Ph = 1800 x 1.95 = 3510 J
ok done. Thank to me :>
Can anyone help with this?
Answer:
Answer:
1. Object
2. Sink
Explanation:
Step-by-step explanation:
1.5 < 1, the object is denser than the fluid
When an object is denser than a fluid it is submerged in, the object will sink.
where is an electron located within an atom
Answer: in the cloud around the nucleus.
Explanation:
got it right
As galáxias são maiores do que os enxames de estrelas?
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Responder \;\;a}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
As galáxias são geralmente maiores do que os aglomerados de estrelas. Como disse Geller ~ As galáxias são como as cidades em que vivem os aglomerados de estrelas. As galáxias podem ter cerca de milhares ou mais aglomerados de estrelas ~
I hope it helps ~
Shortlest wavelength?
PLEASE ANSWER NEED HELP!!!!!!!! PLEASE THE CORRECT ANSWER!!!!!!
Nadine knows that she should do some balance training, but she does not know much about it. She already has a full exercise schedule and is worried that she cannot fit in another intense workout session. What is the BEST advice for Nadine?
A.
She can add a few simple exercises to her regular routine.
B.
She really does not need to worry about it if she is stretching.
C.
She won’t get much out of her other workouts if balance isn’t addressed.
D.
She should find at least half an hour to go to the gym and work on balance.
PLEASE NO LINKS
I'm not that sure but I think the answer is D.
Cause without balance most exercises will not be easy to do.
But I suggest u wait for another person to answer.
She already has a full exercise schedule and is worried that she cannot fit in another intense workout session. She should find at least half an hour to go to the gym and work on balance. Thus option D is correct.
What are the benefits of doing exercise ?physical activity can lead to improve the muscle strength workout on maintenance oxygen and vitamins for tissues and allows the cardiovascular device to work more efficiently, when the heart and lung fitness enhance, energy will be enhanced.
The specificity, progression, overload, variation, and reversibility practicing often and always is so vital if you need to improve your performance.
The training help in development in fitness application are overload, progression, and specificity, increase the repetitions, a quantity of weight, or length of time in an exercise you are familiar with, you are making use of overload.
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Can you answer it for me pls
Answer:
the answer is b. because liquid always bubble when boiling
-------------------------------is the time measuring device in which periodic motion is produced by mechanical winding.
Answer:
Pendulum ClockExplanation:
Explanation ---> Pendulum Clock is a time measuring device which was possible by the discovery of oscillation in which to and fro motion is present.I need some help with this
It is B: low precision,low accuracy
Explanation:
Have a great day =)
