Answer:
Explanation:
Given parameters:
Initial velocity = 8.5m/s
Acceleration = 4.1m/s²
Time = 2.7s
Unknown:
Distance downhill traveled = ?
Solution:
To solve this problem, we have to adopt the right motion equation;
S = ut + [tex]\frac{1}{2}[/tex]at²
where s = distance
u = initial velocity
a = acceleration
t = time taken
Insert the parameters and solve;
S = (8.5 x 2.7) + ([tex]\frac{1}{2}[/tex] x 4.1 x 2.7²)
S = 22.95 + 14.95
S = 37.9m
EASY QUESTIONS! DUE IN 15 MIN WILL MARK BRAINLIEST.
1. What is the sum of a vector 8 m south and a vector 12 m north? *
2. What is the sum of a vector 12 m north and a vector 8 m north? *
PLEASE SHOW WORK AND EXPLAIN
Explanation:
As they are in same direction, you can add them directly. And result is 12 + 8 m = 20 m North. If you use vector addition: Vectors = 12m & 8 m & angle b/w them is 0°(as both are in same direction).
where are the new skin cells made
Answer:
epidermis
The top 18 to 23 layers of your skin are made of dead cells. New skin cells form at the bottom of the epidermis, which is the top part of your skin. Skin cells change shape. They start off kind of fat and square.
Explanation:
What is a coastal plain? A high mound or ridge of sand The boundary between the land and an ocean A flat, low-lying piece of land next to the ocean The piece of land formed when a river splits into smaller rivers
Answer:
Hi I learned that it is something pretty and it's a flat low-lying piece of land next to the ocean
Explanation:
Answer:
A coastal plain is flat, low-lying land adjacent to a sea cost. A fall line commonly marks the border between a coastal plain and a piedmont area. Some of the largest coastal plains are in Alaska and the southeastern United States.
Explanation:
A red ball rolls for 6 meters across a sticky level surface and slows down to a stop. the ball was rolling at 36 meters per second when it began to roll across the sticky surface. find the acceleration, velocity final, the velocity initial, the velocity average, the distance the ball rolled, and the time of the balls roll across the sticky surface
Answer:
The initial velocity of the ball is given as 36 m/s
The final velocity of the ball is given as 0 m/s
The distance the ball rolled is given as 6 meters
The acceleration is 108 m/s²
The time the ball rolls across the sticky surface is 1/3 seconds
The average velocity is 18 m/s
Explanation:
The initial velocity of the ball, u = 36 m/s
The final velocity of the ball, v = 0 m/s
The distance the ball rolled, s = 6 meters
The acceleration, a, is given by;
v² = u² - 2×a×s, where v = 0
u² = 2 × a × s
a = u²/(2 × s) = 36²/(2 × 6) = 108 m/s²
The time the ball rolls across the sticky surface is given by the following equation;
v = u - a×t, v = 0
∴ u = a×t
t = u/a = 36/108 = 1/3 seconds
The time the ball rolls across the sticky surface = 1/3 seconds
The average velocity = Distance/time = 6/(1/3) = 18 m/s
The average velocity = 18 m/s.
What is the driving energy source for the heating of the Earth?
if an engine applies a force of 600N on a 200kg scooter. what will be the change of speed? answer in m/s^2
Br
A tow truck pulls a 1,500 kg car with a net force of 2,000 N. What is the
acceleration of the car? DO NOT FORGET CORRECT UNITS.
Answer:
a = F/m = 4000/1500 = 2.66m/s^2
Explanation:
A tow truck pulls a mass of 1500 kg with a force of 2000 N then the acceleration of the truck will be equal to 1.33 m/s².
What is Force?A force in physics is an input that has the power to change an object's motion. A mass-containing object's velocity can vary, or accelerate, as a result of a force. Intuitively, a push or a pull can also be used to describe forces.
Being such a vector quantity, a force does have magnitude and direction. The SI unit metric newton is used to measure it (N). The letter F stands for force.
According to Newton's second law's original formulation, an object's net force is equal to the speed that its momentum is changing over time.
As per the given information in the question,
Mass of car, m = 1500 kg
Force, F = 2000 N
Then, the acceleration will be,
F = m × a
a = 2000/1500
a = 1.33 m/s²
To know more about Force:
https://brainly.com/question/13191643
#SPJ2
when your bikes in motion and you slam on the brakes, do you experience positive or negative acceleration?
Answer:
negative
Explanation:
HELP PLEASE!!
You throw a rock with sufficient speed to put it into orbit around the asteroid 234 Ida very close to its surface. How long would it take the rock to make one orbit around the asteroid? Assume 234 Ida is spherical. Ida's mass is 4 x 1016 kg and its radius is 16 km.
A) 0.62 hr
B) 2.2 hr
C) 1.6 hr
D) 3.4 hr
Answer:
The correct option is;
B) 2.2 hr
Explanation:
The location of the rock in the orbit of the asteroid = Close to the surface of the asteroid
The required equation is given as follows;
[tex]\dfrac{G \times M \times m}{r^2} = \dfrac{m \times v^2}{r}[/tex]
[tex]\therefore v^2 = \dfrac{G \times M}{r}[/tex]
Where;
v = The orbital velocity
G = The universal gravitational constant = 6.67430 × 10⁻¹¹ N·m²/kg²
r = The radius of the planet = 16 km = 16,000 m
M = The mass of the planet = 4 × 10¹⁶ kg
∴ v² = 6.67430 × 10⁻¹¹ × 4 × 10¹⁶/16,000 = 166.8575
v = √(166.8575) = 12.92 m/s
The orbital velocity = v = 12.92 m/s
The time it takes for the rock to make one orbit round the asteroid is given as follows
The length of the orbit = The circumference of the asteroid = 2 × π × r
The length of the orbit = 2 × π × 16,000 ≈ 100530.965 m
The time it takes for the rock to make one orbit round the asteroid = The length of the orbit/(The speed of the asteroid)
The time it takes for the rock to make one orbit round the asteroid = 100530.965/(12.92) ≈ 7781.034 seconds or 2.2 hours (by approximation by one decimal place)
The time it takes for the rock to make one orbit round the asteroid ≈ 2.2 hours.
Which of the following statements best describes why the mass of a bowling ball would not change if it were transported from Earth to the Moon?
Answer:
On Earth, the acceleration due to gravity is 9.8 m/s/s. ... In other words, you weigh more on Earth; you would weigh less on the moon. For instance, if you take a 10 kg bowling ball to the moon, it would still have a mass of 10 kg. However, its weight would be much less because the moon's gravity is relatively weak.
Explanation:
Se tiene una esfera gaussiana que encierra a un cubo de lado "a" que tiene una carga neta q. ¿Cuál es el flujo de campo eléctrico sobre la superficie de la esfera gaussiana?
Answer:
Φ = Q/ε₀
Explanation:
Una esfera Gaussiana, es una esfera imaginaria en cuya superficie el campo eléctrico es constante. El campo eléctrico es el producido por la carga que está encerrada por la superficie. De tal modo que si tenemos un cubo con una carga neta igual a Q y la asumimos ubicada en el centro del cubo (que es el centro de la esfera gaussiana de radio x), tendremos:
El flujo eléctrico es:
Φ = ∫ E*dS = Q/ε₀ Esta es la primera ecuación de Maxwell como E es constante por definicion
El area de una esfera es: A(s) = 4*π*x²
E * 4*π*x² = Q/ε₀
E = Q/4*π*ε₀* x²
La distancia que hay del centro del cubo a un vertice (x) es:
x² = a² + a²
x = √2a²
x = a*√2
Sustituyendo x por su valor
E = Q/4*π*ε₀*2*a²
Entonces
Φ = Q/4*π*ε₀*2*a²* ∫ dS
Φ = [Q/4*π*ε₀*2*a²] *[4*π*2*a² ]
Φ = Q/ε₀
Free Fall Problems
1.)
A pencil is dropped from the top of a very tall bridge and hits the ground 3.2 s later
A) With what velocity did the pencil hit the river below?
B.)
How far did the pencil fall?||
Answer:
50.2m
Explanation:
Given parameters:
Time taken for the pencil to hit the ground = 3.2s
Unknown:
Final velocity = ?
height of fall = ?
Solution:
To solve this problem, we should apply appropriate motion equations;
A.
V = U + gt
V is the final velocity
U is the initial velocity
g is the acceleration due to gravity
t is the time taken
Insert the parameters and solve;
V = 0 + 9.8 x 3.2 = 31.36m/s
B.
h = ut + [tex]\frac{1}{2}[/tex]gt²
h is the height of fall
Insert the parameters and solve;
h = [tex]\frac{1}{2}[/tex] x 9.8 x 3.2² = 50.2m
what determines the roll and pitch of a satellite.
This is for my Physical science class
If a squirrel climbs a tree at 16m/s, how many meters will it travel every hour?
Answer:
57600 m and hour
Explanation:
A bird flies 1.3\,\text m1.3m1, point, 3, start text, m, end text with an average speed of 2.4\,\dfrac{\text m}{\text s}2.4 s m 2, point, 4, start fraction, start text, m, end text, divided by, start text, s, end text, end fraction.
Explanation:
We are not asked what to look for, bot we can as well get the time taken by the bird to cover the distance at that speed.
Given
average speed = 2.4m/s
Distance = 1.3m
From the formula
Speed = Distance/Time
Time = Distance/Speed
Time = 1.3/2.4
Time = 0.542secs
Hence the total time covered by the bird is 0.542secs
Calculate the work done by a 60 N force pushing a pencil 0.25 m
is it true that mass is a measure of the force of gravity on an object
Answer:
yes it is true
Explanation:
If a 6kg bird is pushed by the wind with a force of 10 N. how fast does the bird
accelerate?
Answer:
a=1.667 m[tex]s^{-2}[/tex]
Explanation:
F=ma, here force is given as 10N and mass of bird is 6kg, so using the formula acceleration can be calculated as follows
∴ F=ma
1N= 1 kg m[tex]s^{-2}[/tex]
[tex]a=\frac{F}{m}[/tex]
[tex]a=\frac{10 kg ms^{-2} }{6 kg}[/tex]
∴ a= 1.667 m[tex]s^{-2}[/tex]
(Forensic Science)
Officer Piddington has been called to a murder scene. He arrives to find EMTs tending to the victim lying on the living room floor with a large knife protruding from his sternum. It is clear that this is where the crime occurred, and Officer Piddington does not see any evidence of dangerous chemicals on site. He secures the area and then begins to document the scene. What is one of the first things that Officer Piddington records in his notes about the crime scene?
The victim's past criminal history
A description of the crime scene when he arrived
The estimated time of death of the victim
A list of possible suspects involved in the crime
Answer:
The answer is B
Explanation:
The detective begins his/her documentation of the crime scene by writing down the date, time, and location of the crime scene. this is always important to start the report with so that any who reads the notes know when and wher this all happened before reading about evidence other wise the reader could be confused and pass evidence off as faulty.
Answer:
A description of the crime scene when he arrived
Explanation:
A swimmer can travel 2.30 m/s in still water. The swimmer heads directly west across a steam whose current is 1.20 m/s n. What is his velocity relative to the ground
Answer:
velocity relative to the ground = 2.54 m/s
Explanation:
given data
still water Vx = 2.30 m/s
across a steam Vy = 1.20 m/s
solution
we get here first velocity relative to the ground is express as
velocity = [tex]\sqrt{Vx^2+Vy^2}[/tex] ...............1
put here value and we get
velocity = [tex]\sqrt{2.3^2+1.20^2}[/tex]
velocity = 2.54 m/s
DUE TODAY HELP ME WRITE A ESAAY NOW
I WILL MARK YOU AS BRAINLEST
it is about science
like how a scientists work
or how to be a scientist
essay is 500 words
Answer:
Explanation:
Try adding what process they have to go through to become a scientists the try adding some things that you think they work on in the labs.
Which does NOT illustrate Newton's First Law?
Answer:
u didnt have options? to this question
Need help ASAP!! Why does the ray bend as it enters the glass
Answer:
Explanation:
because as the light shines through the glass, The glass reflects the light from different places in the glass causing the light to bend
Answer: If light enters any substance with a higher refractive index it slows down. The light bends towards the normal line. If light travels enters into a substance with a lower refractive index it speeds up. The light bends away from the normal line.
create an acrostic poem for the words "INERTIA"
Answer:
I- In all circumstances,
N- Never relenting to pressure.
E- Ever remaining constant and stable,
R- Resisting any form of association with other things,
T- This force will always be the same.
I- In whatever manner or pattern the force may come from.
A- Always true to the core, never changing, never relenting.
Explanation:
An acrostic poem is the formation of a poem/ poetry by using certain letters of the word to form a poem. This means that certain letters of any given word will be used as the basis for the construction and formation of a poem.
The acrostic poem for the word "INERTIA" is as follows-
I- In all circumstances,
N- Never relenting to pressure.
E- Ever remaining constant and stable,
R- Resisting any form of association with other things,
T- This force will always be the same.
I- In whatever manner or pattern the force may come from.
A- Always true to the core, never changing, never relenting.
I- In all circumstances,
N- Never relenting to pressure.
E- Ever remaining constant and stable,
R- Resisting any form of association with other things,
T- This force will always be the same.
I- In whatever manner or pattern the force may come from.
A- Always true to the core, never changing, never relenting.
What is an inertia?The inertia of any object is defined as when any object is at rest then it will be always at rest until and unless the external force is not applied on it. Also, if it is in motion, it will always in the motion until and unless an external force is not applied on it to stop it.
An acrostic poem is the formation of a poem/ poetry by using certain letters of the word to form a poem. This means that certain letters of any given word will be used as the basis for the construction and formation of a poem.
The acrostic poem for the word “INERTIA” is as follows-
I- In all circumstances,
N- Never relenting to pressure.
E- Ever remaining constant and stable,
R- Resisting any form of association with other things,
T- This force will always be the same.
I- In whatever manner or pattern the force may come from.
A- Always true to the core, never changing, never relenting.
To know more about inertia, follow
https://brainly.com/question/1140505
7. A car drives 750 m directly to the north, stops, and then backs up 300 m to the south.
a) What is the magnitude of the car's displacement?
Answer:
what grade is this?
Explanation:
Answer:
is it cumpulsary to know how fast the car was moving or it dosn't have to deal with velocity
Explanation:
:)
A baby drops a ball from her hand resting on the serving tray of her high chair. at the
exact same time, she knocks another ball from the same tray at the exact same height.
Which of the following statement or statements is / are true?
1. Both balls strike the ground at the same time.
II. The dropped ball reaches the ground first.
III. The knocked ball reaches the ground first.
IV. Both balls strike the ground at the same speed
O I and IV
O ll only
I only
O Ill only
Answer:
Both balls strike the ground at the same time, and both balls strike the ground at the same speed.
Explanation:
Is it possible to analyze the motion of an object that has non-constant acceleration?
Answer:
B
It is possible, but with formulas not yet derived by physicists.
Explanation:
Yes, it is possible to analyze the motion of an object that has non-constant acceleration but not with the help of Newton's equation of motion, as these equations are only valid for constant acceleration.
What are the three equations of motion?There are three equations of motion given by Newton,
v = u + at
S = ut + 1/2×a×t²
v² - u² = 2×a×s
Note that these equations are only valid for a uniform acceleration.
It is feasible to study an object's motion with non-constant acceleration, but not using Newton's equations of motion because these equations are only applicable for constant acceleration.
For analyzing the variable acceleration we have to use the calculus tools such as differentiation and integration.
Hence, it is possible to analyze the motion of an object that has non-constant acceleration
Learn more about equations of motion from here,
brainly.com/question/5955789
#SPJ6
What are examples of Electrical Potential Energy
Works by separating the different wavelengths of light, used to
determine which elements are present in a star or sample
Answer:the light from an astronomical source can consist of a continuous spectrum, an emission (bright line) spectrum, or an absorption (dark line) spectrum. Because each element leaves its spectral signature in the pattern of lines we observe, spectral analyses reveal the composition of the Sun and stars.
Explanation:
In the data table, distance is measured in meters and time is in seconds. Calculate the boy’s average velocity using the equation
average velocity= total distance / total time
Answer:
23.59 for the average pls give brainliest sis
Answer: 23.59
HOPE THIS HELPS :D