Answer:
Explanation:
1) weight = mg = 9.81*1000 = 9810 Newtons
2) frictional force = normal force *
we must assume that the vehicle is on a flat surface so therefore the normal force is the same as the weight of the vehicle.
frictional force = 9810 * 0.55 = 5 395.5 N
3) acceleration: F = ma, a = F/m
assume that only the frictional force is acting on the vehicle:
a = 5395.5/1000 = 5.3955 m/s
4) the car decelerates at 5.3955m/s
over 6 seconds, the car decelerates by: 32.37m/s
5) original speed = 29m/s final speed = 29-32.37 = -3.37m/s which is a negative number, therefore the vehicle would have stopped before it hit the rail.
6) to get to the rail, the vehicle would have had to be traveling at least 32.37m/s which is 72.41 mph
PLEASE HELP!!! a skateboard rolls down a ramp, starting from rest. after 3seconds, the skateboard’s velocity is 15m/s. what is the acceleration of the skateboarder?
If you are doing 4 sets of 10 repetitions of air squats you are doing _____ x _____ which equals to _____ air squats
Answer:
4x10=30
Explanation:
You can easily know it's multiplication when you see the sign. It gives you the number but you have to plug it in. So once you plug in the numbers then you should get either 4x10 or 10x4 which means both is equal to 40
Terry rides his bike at a constant speed of 10.3 m/s. If he rides for 10 minutes, how far has he ridden?
Answer:
6180
Explanation:
if he is riding at 10.3 meters per second, and is riding for 10 minuets you multiply 10.3 by 60 for 1 minuet and get 618. Then multiply 618 by 10 for 10 minuets and you get 6180
Answer:
618 of 103
Explanation:
If you do 10.3 x 60 you will get 618
If you do 10.3 x 10 you will get 103
Who was the first person to walk on the moon ?
Answer:
god correct correct
Explanation:
A car traveling 6.0 m/s is uniformly accelerating at a rate of 3.0 m/s^2 for 15 seconds. What is its final velocity
Answer:
51m/s^1
Explanation:
v=u+at
v=(6)+(3)(15)
v=51m/s^1
Tyler traveled 36 km at a speed of 8 km/hr. Mark traveled 48 km at a speed of 10 km/hr. Who traveled the fastest? Who got to their destination first?
Answer:
Tyler got to his destination first. It took him 4.5 hours
Explanation:
Tyler's trip: 36 / 8 = 4.5 hrs
Mark's trip: 48 / 10 = 4.8 hrs
How far will a car travel in 2 hours at 20 km/hr?
20 km
40 km
80 km
O km
Answer:
It should be 40
Answer:
I think it is 40km sorry if my Answer is wrong
A man jumps from an airplane and does not
open
his parachute immediately. As he falls,
two forces act on him: the force mg due to
gravity and the force n, of air resistance. Now
he opens his parachute and begins to fall at
constant velocity.
What forces act upon him now?
Answer:
The forces acting on a skydiver jumping from a plane include the gravitational force and air resistance
Explanation: i, dumb so this is proabaly wrong
x = yz
How do you solve for z?
what is a blastocyst definition
Answer: Explanation:
Blastocyst, a distinctive stage of a mammalian embryo. It is a form of blastula that develops from a berrylike cluster of cells, the morula. A cavity appears in the morula between the cells of the inner cell mass and the enveloping layer.
Acar accelerates from 5 ms to 27 mis in 10 seconds. What is the acceleration in m/s??
Explanation:
Acceleration is final velocity minus initial velocity divided by time.
a = (v − u) / t
a = (27 m/s − 5 m/s) / 10 s
a = 2.2 m/s²
Elements in the same______
are more chemically similar.
THIS IS URGENT!!!!
Answer:
group
Explanation:
And vote me brainliest
free brainlist but you have to get this right
100000000000000000000 times 200000000000000 times 3000000000000000 times 1 times 200000000000000000000000000000 times 5
You Can Use Caculator
Answer:
the answer is 6e+79
Answer:
yea the answer is 6e+79 i did use a couculater though
Explanation:
does this curved graph show a function explain how you know
Answer:
No; the graph fails the vertical line test.
The vertical line test is a tool used to determine if we have a function. If we can draw a single straight vertical line through more than one point on the red curve, then the graph is said to have failed the vertical line test. Consequently, this leads to the relation not being a function.
For this circle graph, we can draw a vertical line through more than one point, which is why we don't have a function here.
Put another way, there are inputs (x) that produce more than one output (y), so that's why we don't have a function.
-BBBM
True or False As most substances are cooled, they expand
Two ice skaters on ice push away from each other. What will be the effect of the forces of their pushing each other if their masses are different?

Answer:If the masses are different, the lighter ice skater will accelerate faster than the ice skater with more mass.
Explanation:
The lighter skater will accelerate more quickly than the heavier skater if there are mass discrepancies.
used an idea?According to Newton's third law, the action and reaction forces in any force interaction must be equal and moving in the opposite directions. These pressures, nevertheless, affect a variety of items. In this case, each skater will experience the same amount of force, and if any other horizontal forces, such as friction, operating on each skater in the opposite direction from the pushing force are less than the pushing force, each will accelerate in that direction. The two skater system's center of mass will remain where it is if there is little to no friction to prevent the skaters from moving.
To know more about Friction visit-
https://brainly.com/question/13000653
#SPJ2
. Explain What makes the rock cycle a cycle?
SC.7.E.6.2 hi how do you do this
The Rock cycle is a model that describes the formation degradation, and regeneration of rocks as a result of sedimentation magma, and metamorphism. All rocks are made of minerals.
Rock circulation is the process by which rocks change continuously between three types igneous sedimentary and metamorphic. The three processes that transform one rock into another are crystallization, metamorphism erosion, and sedimentation. Any rock can be transformed into another rock by undergoing one or more of these processes. This creates a lock cycle.
Rock circulation is a fundamental concept that describes the transition between three rock types metamorphic igneous, and sedimentary rocks. Simply put it is a set of processes that create and transform rock types within the Earth's crust. Rock cycling by definition is the natural process by which sedimentary igneous, and metamorphic rocks are formed, transformed from one type to another, and destroyed.
Learn more about The Rock cycle here:-https://brainly.com/question/12863450
#SPJ1
Please help
Quickly!!!..
S1-CA-PHY41
The graph below represents the motion of a car during a 3.0 s time interval. What is the total displacement
of the object at the end of 3.0s
Answer:
The total displacement of the object is 20 m
Explanation:
Velocity vs Time Graph
It shows the behavior of the velocity as time increases. If the velocity increases, then the acceleration is positive, if the velocity decreases, the acceleration is negative, and if the velocity is constant, then the acceleration is zero.
The distance covered by the car can be calculated as the area behind the graph.
The total area can be calculated in two parts: One triangle from t=0 sec to t=2 sec, and one rectangle from t=2 sec to t=3 sec.
The area of a triangle is
A1= B*H/2, where B is the length of the base, and H is the length of the Height. The base is B=2 seconds, and the height is H = 10 m/s, thus:
A1= (2 sec)*(10 m/sec)/2=10 m
The area of a rectangle is
A2=W*L, where W is the width, L is the length. W=1 sec, L=10 m/s, thus:
A2=(1 sec)*(10 m/sec) = 10 m
Total displacement= 10 m + 10 m = 20 m
The total displacement of the object is 20 m
Convert the following from scientific notation to standard notation.
1. 3.47 x 108
2. 7.94 x 103
3. 1.96 x 10-3
4. 4.50 x 109
5. 9.61 x 10-6
6. 2.02 x 105
7. 7.01 x 10-10
8. 4.44 x 101
Answer:
1.) 347,000,000
2.)7,940
3.)0.00196
4.)4,500,000,000
5.)0.00000961
6.)102,000
7.).000000000701
8.)44.4
Explanation:
when the power is positive, you just need to move decimal point to your right , for a number of times which is similar to the value of the power.
Eg. 3.47×10 raised to the power 8.
with this, move the decimal point to the right eight times which will be 347,000,000.
But when the power is negative, move the decimal point to the left for a number times which will be similar to the value of the power.
Eg. 1.96×10 raised to the power negative 3.
move the decimal point leftwards three times which will be 0.00196
Please mark as brainliest.
a car moving on a road passes by kilometer 218 at 10:15 am and milestone 236 at 10:30 am. determine an average scalar speed in km / h over this stretch.
Answer:
v?
Explanation:
v = ∆s / ∆t
v =?
∆s = 236 - 218 = 18km
=t = 10: 30 - 10:15 = 15 minutes to hour 15/60 = 0.25h
v = 18 / 0.25
v = 72km / h
speed of 72km / h
HEY CAN ANYONE PLS ANSWER DIS!!!!!!!
Answer:
A) the one with the lower boiling point.
Please mark me brainliest! Hope this helped!
God bless :)
Which particle is used as a beam to treat cancer? electron neutron proton
Answer:neutron
Explanation:
Because it is similar to the motor neurons
Answer:
Proton
Explanation:
Proton therapy, also called proton beam therapy, is a type of radiation therapy. It uses protons rather than x-rays to treat cancer. A proton is a positively charged particle. At high energy, protons can destroy cancer cells.
How does increasing frequency affect the crests of a wave?
Answer:
your getting in the water causes it to make a giant wave
Explanation:
Who do you think took Ms. C's lunch?
Answer:
the main character
Explanation:
i think
can alligators drink Gatorade
Answer:
Probably not my guy
Explanation:
A vector has an x-component
of 6.15 m and a y-component
of -3.88 m.
Find the direction of the vector.
1 HELP PLEASE I'LL GIVE BRAINLIST AND POINTS!!!
Do some research on digital vs. analog recording, and decide which you think gives the most accurate and best quality sound. State the advantages and disadvantages of each in a paragraph. Be sure to back up your opinions with facts, and state your sources.
have 2-6 paragraphs pleasee
Answer:
The question of analog vs. digital audio is one of the more hotly debated questions in the world of music, film and media today. Does digital sound better? Does analog sound better? Is there even a noticeable difference?
It’s impossible to understand the difference completely without understanding what distinguishes analog audio from digital audio. A full discussion of these terms is best left to your curriculum and discussions with your mentor in the studio. For now, though, here’s a brief explanation of what these two words mean, and the differences between them.
Analog refers to a continuously changing representation of a continuously variable quantity. Digital, however, refers to representing these variable quantities in terms of actual numbers, or digits. The last two sentences seem a bit complex, but let’s try to simplify them with an example. If you consider the numbers 1 and 2 on a number line, there are actually an infinite number of points between 1 and 2. This is what analog represents—the infinite number of possibilities between 1 and 2. Digital, on the other hand, only looks at certain number of fixed points along the line between 1 and 2 (for example, 1 ¼, 1 ½, 1 ¾, and 2).
Can you see the difference? Digital takes a few “snapshots” of the number line, while analog takes the whole line into account.
As another example, think of analog vs. digital as the difference between seeing something in real life and watching it on film. When we see something happen in real life, there are no “spaces” between what we see, so we’re watching it happen in analog. Film, however, is actually a series of still photographs that are taken in rapid-fire intervals, and when we see them in succession, it tricks our minds into thinking we’re seeing a continuous flow of movement. So in a manner of speaking, when we watch the event happen on film, we’re watching it digitally, because we’re watching increments of the event, rather than the whole thing in fluid motion. (Not to be confused with digital video vs. film, which is another discussion completely!)
Let’s bring this idea into audio, music, and the studio. Sound occurs naturally in analog–that is to say, sound occurs in a continuous set of waves that we hear with the human ear. (Think of it as a “wavy” line with an infinite number of points along it.) When we capture that sound in a way that represents all the possible frequencies, we’re recording in analog; when we use computers to translate the sound into a series of numbers that approximate what we’re hearing, we’re recording in digital.
Thus, a purely analog recording would be something that was recorded on tape and produced using manual equipment to mix, master and press into a vinyl LP. A purely digital recording would be recorded on a computer program such as Pro Tools, mixed, mastered and produced digitally, and eventually burned onto a CD as an MP3 or audio file.
The most ironic aspect of the debate about digital vs. analog recording is that nowadays a lot of music is a combination of the two. For example, you might record a song onto analog tape, but mix and master it digitally, or release it on the Internet as an MP3.
So what’s the difference in quality between analog and digital? The idea between digital recording is that our ears and brains technically can’t determine the spaces between the digital values, just like our brains interpret film as continuous motion. However, to many people, analog sound tends to be warmer, has more texture and is thought to capture a truer representation of the actual sound. Digital is felt to be somewhat cold, technical and perhaps lacking in analog’s nuance.
However digital is much cheaper. Recording an album with analog technology can require a whole studio full of equipment, but with digital recording technology, it’s possible to record a whole album in a bedroom on a laptop. And whereas analog technology can wear out or be damaged, digital media can last for an indefinite length of time.
Today many recording artists, both major and independent, record using a mixture of digital and analog techniques. While analog audio does give warmth and a truer sound quality, digital is cheaper to work with and offers more control over the finished product.
Pls Answer I have a time limit!!!
How can mass be measured?
Group of answer choices
bathroom scale
spring scale
balance
scale
Answer:
Balance scale would be the answer
Answer:
The basic SI unit of mass is the kilogram (kg). In physics, mass is not the same as weight, even though mass is often determined by measuring the object's weight using a spring scale, rather than balance scale comparing it directly with known masses.
Balanced Scale
Why does frost bite occur in mountain climbers ?
Answer:
Because they are in places that may be extremely cold
Explanation:
For example take Mount Everest. This place is a very high mountain, and is very cold. Usually hikers would get a frost bite from how cold it is in there. According to google, "Frostbite is an injury caused by freezing of the skin and underlying tissues."