Answer:
20 minutes
Explanation:
Create a proportion.
x = time for 23 miles of travel
70 miles/hr = 23 miles/ x
--- Cross Multiply
70x = 23 --- Divide 70 on both sides
x = 0.32857 hrs....
multiply your value of "x" by 60 min/hr in order to convert to minutes
0.32857 hrs * 60min/1hr
hr(s) cancels out
x = 19.7143... ~ 20 mins
It's Friday night and Skyler has been assigned the noble task of baby-sitting Casey, his 2-year old brother. He puts a crash helmet on Casey, places him in the red wagon and takes him on a stroll through the neighborhood. As Skyler starts across the street, he exerts a 52 N forward force on the wagon. There is a 24 N resistance force and the wagon and Casey have a combined weight of 304 N. Construct a free body diagram depicting the types of forces acting upon the wagon. Then determine the net force, mass and acceleration of the wagon.
Answer: It's Friday night and Skyler has been assigned the noble task of baby-sitting Casey, his 2-year old brother. He puts a crash helmet on Casey, places him in the red wagon and takes him on a stroll through the neighborhood. As Skyler starts across the street, he exerts a 52 N forward force on the wagon. There is a 24 N resistance force and the wagon and Casey have a combined weight of 304 N. Construct a free body diagram depicting the types of forces acting upon the wagon. Then determine the net force, mass and acceleration of the wagon.
Explanation:
When Skyler exerts a force of 52 N on the wagon and there is a 24 N resistance force and the wagon and Casey have a combined weight of 304 N then Net force, mass and acceleration of the wagon will be 305.2 N, 31.02kg and 0.9 m/s² resp.
What is Force ?Force is responsible for the motion of an object. it produces acceleration in the body. According to newton's second law force is mass times acceleration i.e. F =ma. Its SI unit is N which is equivalent to kg.m/s². There are two types of forces, balanced force and unbalanced force. when net force acting on body is zero then it is called as balanced force and net force on the body is non zero then it is called as unbalanced force. unbalanced force are responsible for the motion of the body.
in this problem, Skyler is applying 52 N force to a wagon, there is resistance of 24N of force. Combined Wight is 304 N is directed downwards. a vector diagram is shown in the figure which gives the Net force.
the resultant force between resistance and applied force
F = 52 - 24 = 28N... means total of 28N of actual force is applied on the wagon in x direction.
There is downward force as weight, hence magnitude of net force acting on the wagon is.
F²(net) = F₁²+F₂² + F₁F₂cosθ
θ = 90, cos 90 = 0
F²(net) = F₁²+F₂²
F²(net) = 28² + 304²
F²(net) = 93200
F (Net) = [tex]\sqrt{93200\\[/tex] = 305.2 N
To get mass and acceleration,
weight W = mg
304 = m*9.8
m = 31.02 kg mass of the wagon is 31.02kg
F = ma
28 = 31.02*a
a = 0.9 m/s²
Acceleration of the wagon is 0.9 m/s². this is forward acceleration.
Hence Net force, mass and acceleration of the wagon is 305.2 N, 31.02kg and 0.9 m/s² resp.
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Heavier elements like gold are created in the most massive stars and spread through the universe when these stars explode. This explosion is called a
Answer:
Big bang
Explanation:
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NEED HELP!!!!
When people are sick, it is often recommended that they consume a lot of liquids, particularly water. What is the biological basis of this advice?
OPTIONS:
A.
Water will help flush toxins out of the body.
B.
Drinking will distract them from their illness.
C.
It is always easier to drink than to eat if you are sick.
D.
They are probably sick because they were dehydrated.
PLEASE NO LINKS
Answer:
A.
Explanation:
Drinking water usually helps with gaining hydration cause usually when you get sick you get weak. thats what u think though
Water will help expel toxins from the body that's why it is recommended to sick people to consume more water. Therefore, option (A) is correct.
Why is it important to stay hydrated during sick?Proper hydration can be helpful to the skin and mucous cell membranes play a barrier to stop bacteria from entering the body when sick with a virus. Fluid can also help decrease irritation when sneezing, coughing, and even breathing.
Water can help to regulate body temperature, maintain healthy skin and joints, digest food, and help the brain function at its best. Producing requires bodily fluids, like tears and saliva, and removing waste through sweat, and urination.
Dehydration can happen when we lose a high amount of bodily fluids than we’re consuming. This can occur through bodily functions that bring the loss of fluids and electrolytes.
Therefore, it is important to stay hydrated when you are sick.
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What is the magnitude momentum of a 2 kg body that moves with a speed of 3 m/s? (1 point)
A. 1.0
B. 1.5
C. 5.0
D. 6.0
Answer:
DExplanation:
The momentum of an object can be found by using the formula
momentum = mass × velocity
From the question
mass = 2 kg
velocity/speed = 3 m/s
We have
momentum = 2 × 3 = 6
We have the final answer as
6 kg.m/sHope this helps you
Answer:
(Question) Which of these quantities is a vector?
(Answer) momentum
(Question) What is the representation of the momentum vector?
(Answer) an arrow
(Question) What is the formula for the momentum p?
(Answer) p=m⋅v
(Question) What happens to the total momentum in a system of two interacting objects when a net force is exerted upon the system?
(Answer) The total momentum is conserved.
(Question) What is the magnitude momentum of a 2 kg body that moves with a speed of 3 m/s?
(Answer) 6.0
Explanation:
just finished the quick check UwU
What can we say when one force
is greater than another force?
A. There is no net force.
B. There is no change in motion.
C. There is a change in motion.
D. The forces are in equilibrium.
When one force is greater than another force, we can say that there is a change in motion. The correct answer is option C: "There is a change in motion."
According to Newton's second law of motion, the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. When one force is greater than another force, the net force acting on the object is not zero. If the net force acting on an object is not zero, it will cause the object to accelerate in the direction of the larger force. This acceleration leads to a change in motion. The object may speed up, slow down, change direction, or a combination of these.
Option A, "There is no net force," is incorrect because if one force is greater than another, there is a net force acting on the object.
Option B, "There is no change in motion," is incorrect because, as explained above, a greater force leads to a change in motion.
Option D, "The forces are in equilibrium," is incorrect because if one force is greater than another, the forces are not balanced, and the object is not in equilibrium.
Therefore, the correct statement is that there is a change in motion when one force is greater than another force.
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I NEED A 100% ACCURATE ANSWER FOR THIS QUESTION ASAP NO LINKS !!!
Answer:
B
Explanation:
Which of the following accounts for most of an atom's mass?
A. The nucleus
B. Neutrons
C. Protons
D. Electrons
C.protons
Explanation:
sana makatulong :>
La aceleración de un proyectil que describe una trayectoria parabólica cerca de la superficie terrestre es constante o variable
Answer:
Es una constante porque sigue funcionando y debido a la gravedad, tú tendrías que ser tú quien la detenga si está bajando en lugar de hacia arriba.
Explanation:
¿Cómo
se
ajosta
o pondero un error de medicion?
Answer:
sorry do not speak Spanish so I would not be able to help you probably cannot read this but I would be happy to help you if you follow me and bake English so thank you
why is space black if there is light coming from everywhere?
If an object starts with a velocity of 5.26 m/s
and ends with a velocity of 60.7 m/s in 15.0
seconds, what is its displacement?
Answer:
Displacement = 8.4m
Explanation:
Hope that this is helpful.
Have a great day.
[tex]v = 60.7m {s}^{ - 1} \: u \: = 5.26m {s}^{ - 1 } \: t = 15s \: \: \: \: \: \\ a \: = \frac{v - u}{t} \\ a \: = \frac{60 .7- 5.26}{15} \\ a = 3.7m {s}^{ - 28} \\ {v}^{2} = {u}^{2} + 2as \\ {60.7}^{2} = {5.26}^{2} + 2 \times 3.7 \times s \\ 60.7 =27 .7 + 2 \times 3.7s \\60.7 = 29.7 \times 3.7s \\ 60.7 - 29.7 = 3.7s \\ 31 = 3.7s \\ \frac{31}{3.7} = \frac{3.7s}{3.7} \\ s = 8.4m[/tex]
what force is driving the orbits positioning of the planets around the sun
Answer:
he found that a single forece known as gravity keeps the planets in their orbits around the sun gravity force that keeps planets in their orbits calculus a branch of mathmatics partially developed by Newton and used to explain his laws
Explanation:
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which force is responsible for electric gong ?
MAGNETIC FORCE...
Have a beautiful and joyful day ahead.
Answer:
Magnetic force
Explanation:
have a nice day
in an electron dot diagram,the symbol for an element is used to represent
Answer:
The nucleus and all non-valence electrons.
You drive a car 660 m to the east, then 400 m to the north. What is the magnitude of your displacement? Using a sketch, estimate the direction of your displacement. Verify your estimate with a numerical calculation of the direction.
Explanation:
You walk 53m to the north, then you turn 60° to your right and walk another 45m. Determine the direction of your displacement vector. Express your answer as an angle relative to east.
A space ship cruises at a constant velocity of 33,155 km/hr for 22.5 minutes. How far does the ship travel in that
time? State your result in kilometers.
Answer:
12,433 km
Explanation:
I got this by doing 33,155 and dividing it by 60, which is km per minute, then I did 552.583333, which is km per minute and multiplied it by 22.5, which equals 12,433 km
To check this you can do 12,433 times 2, which is 45 minutes and then use 552.583333, which is per minute, and multiplying by 15, which is 15 minutes, then add
(12,433 x 2 = 24,866) add 8288.75 [15 minutes] and that gets you 33,155
(Brainiest and thanks are very much appreciated for the effort put in)
PLS HELP 15 PNTS AND BRAINLSIT FOR CORRECT ASNWER PLSSSS HELP MEEE
On a trip you travel at a constant speed of 50 kilometers per hour North for 1 hour. Then you turn West and travel at a constant speed of 40 kilometers per hour for 2 hours. Calculate your velocity for the trip.
43 km per hour
31 km per hour
27 km per hour West + 17 km per hour North
50 km per hour North + 40 km per hour West
Answer::27 km per hour West + 17 km per hour North
Explanation:
:27 km per hour West + 17 km per hour North
he or she is right good jod
The velocity for the trip would be 31 km per hour, therefore the correct answer is option B.
What is displacement?An object's position changes if it moves in relation to a reference frame, such as when a passenger moves to the back of an airplane or a professor moves to the right in relation to a whiteboard. Displacement describes this shift in location.
As given in the problem, on a trip you travel at a constant speed of 50 kilometers per hour North for 1 hour. Then you turn West and travel at a constant speed of 40 kilometers per hour for 2 hours.
The final displacement of the trip = √(50² + 80²)
= 94.34 kilometers
The velocity of the trip = total displacement of the trip / time period
=94.34 kilometers / 3
= 31 kilometers per hour
Thus, the velocity of the trip would be 31 kilometers per hour.
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what is the instantaneous velocity at 1s.
Answer:
the average velocity between two points on the path in the limit that the time (and therefore the displacement) between the two points approaches zero.
Explanation:
E) The displacement is always equal to the distance traveled.
You drive 6.00 km at 50.0 km/h and then another 6.00 km at 90.0 km/h.
a) What is the total distance traveled?
Answer:
you just calculate the time in the two cases then add. I decided to convert into minutes and seconds
Latitude is measured from the equator in a and a direction and what's it known as
Answer:hey can you help me answer my question please.
Explanation:
I have a backbone and my body is covered with smooth, moist skin. I cannot regulate my own body temperature. I lay eggs in the water to reproduce. What can you infer from the description?The organism is an invertebrate.The organism is a vertebrate and an amphibian.The organism is a vertebrate and a mammal.The organism is a vertebrate and a reptile.
farmer joe drives a tractor for 4 hours. his tractor is pulling a heavy plow across a rocky field. over the course of 4 hours, is the plow gaining or losing energy?
Over the course of the 4 hours for which farmer Joe's tractor is pulling the heavy plow, the plow is gaining energy by virtue of its displacement --termed the Kinetic energy.
According to the question, Farmer Joe drives the tractor for 4 hours.
However, the tractor is connected to a heavy plow and is used to pull the plow across a rocky field.
The question requires that we determine if the plow is gaining or losing energy.
In the plow's state of rest, prior to when it is connected to the tractor and pulled by the tractor; the plow possess a form of energy by virtue of its position termed the Potential energy.However, the focus of the question is during the pulling action of the tractor on the plow.
As such, the plow now has a kinetic energy by virtue of its displacement..Ultimately, the plow is gaining energy as it is being pulled by the tractor and now has Kinetic energy.
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A girl standing 600m away from a cliff bangs two pieces of wood together and hears an echo 3.5 seconds later. Determine the speed of sound in that place
Speed = 342.86 m/s
EXPLANATION
s = v × t/2
600 m = v × 3.5 s/2
600 m × 2 = v × 3.5 s
1200 m = v × 3.5 s
v = 1200 m/3.5 s
v = 342.86 m/s
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The speed of sound in that place 342.86 m/s
What is speed of sound?
The speed of sound is defined as the distance through which a sound wave’s point, such as a compression or a rarefaction, travels per unit of time.
given
distance of cliff= 600 m
time = 3.5 seconds
speed of sound = ?
distance = speed * time
distance travelled by the sound to come back to the place where the girl was standing will be = 600 * 2 m
speed = distance / time
speed = 600 * 2 m / 3.5 seconds
speed = 1200 / 3.5 = 342.86 m/s
The speed of sound in that place 342.86 m/s
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What science projects should I do? Please just choose something basic!
Why is water not used as a liquid in glass thermometers?
Explanation:
Because water has no uniform rate of expansion and it vaporizes easy when temperature increases that makes it difficult to read.
Differentiate the followingy= 14t^2-t^2/2+5t-3dy/dt=?
I'm going to assume you mean
[tex]y = 14t^2 - \dfrac{t^2}{2+5t} - 3[/tex]
Taking the derivative with respect to t on both sides gives
[tex]\dfrac{\mathrm dy}{\mathrm dt} = 2\cdot14t - \dfrac{(2+5t)(2t)-t^2(5)}{(2+5t)^2} - 0 \\\\ \dfrac{\mathrm dy}{\mathrm dt} = \boxed{28t - \dfrac{4t+5t^2}{(2+5t)^2}}[/tex]
You could go on to expand the rational expression into partial fractions. One way to do this:
[tex]\dfrac{5t^2 + 4t}{(2 + 5t)^2} = \dfrac{t(5t+2) + 2t}{(2+5t)^2} \\\\= \dfrac{t}{2+5t} + \dfrac{2t}{(2+5t)^2} \\\\= \dfrac15 \cdot \dfrac{t}{\frac25+t} + \dfrac{2t}{(2+5t)^2} \\\\ = \dfrac15 \cdot \dfrac{t+\frac25-\frac25}{\frac25+t} + \dfrac{2t}{(2+5t)^2} \\\\ = \dfrac15 \left(1 - \dfrac{2}{2+5t}\right) + \dfrac{2t}{(2+5t)^2} \\\\ = \dfrac15 - \dfrac{2}{10+25t}+ \dfrac{2t}{(2+5t)^2}[/tex]
and this would give
[tex]\dfrac{\mathrm dy}{\mathrm dt} = 28t - \dfrac15 + \dfrac2{10+25t} - \dfrac{2t}{(2+5t)^2}[/tex]
A car on a straight road starts from rest and accelerates at 1.0 meter per second? for 10. seconds.
Then the car continues to travel at constant speed for an additional 20. seconds.
[6]
Determine the speed of the car at the end of the first 10. seconds.
m/s
Answer:
11 or 10 meters a second
Explanation:
pretty sure thats my explanation "pretty sure" like my confidence? mark me brainliest bad at spelling lol
why was the big bang orange?
Answer:
Today, Hublot continues to innovate with this extraordinary material by reinterpreting the Big Bang Sapphire Tourbillon in an entirely new orange shade – a world-first for a through-tinted sapphire – achieved thanks to the incorporation of titanium and chromium in a skillful manufacturing process.
Explanation:
Hope this helps My Dude.
Atoms of the same element but with different numbers of neutrons
are
Answer:
atoms
Explanation:
i dont know
im pretty sure it atoms