Answer:
Fred weighs more than bob
Explanation:
A diagram of the forces being applied to a box is provided. If the net force acting on the box is 10N toward the right, what is the magnitude of force applied by the boy pulling to the left? Record your answer in the grid below. PLEASE HELP!!!!!!!!!!!!
Answer:
14 N.
Explanation:
Let the force applied by the boy pulling to the left be x.
From the question given above, the following data were obtained:
Net force (Fₙ) = 10 N toward the right
Force applied by the boy pulling to the left = x
Next, we shall determine the total force in the left direction. This can be obtained as follow:
Force in the left direction (Fₗ) = x + 8
Next, we shall determine the total force in the right direction. This can be obtained as follow:
Force in the right direction (Fᵣ) = 11 + 21 = 32 N
Finally, we shall determine the force applied by the boy pulling to the left direction (i.e the value of x) as follow:
Net force (Fₙ) = 10 N toward the right
Force in the left direction (Fₗ) = x + 8
orce in the right direction (Fᵣ) = 32 N
Fₙ = Fᵣ – Fₗ (since the net force is toward the right direction)
10 = 32 – (x + 8)
Clear bracket
10 = 32 – x – 8
10 = 32 – 8 – x
10 = 24 – x
Collect like terms
10 – 24 = – x
–14 = –x
Divide both side by –1
x = –14/–1
x = 14 N
Thus, the force applied by the boy pulling to the left direction is 14 N.
Michael reaches the end of his route and slowly comes to a stop, reaching 1 poin
a final velocity of O m/s and ending his 2 m/s run. If it took him 4 seconds to
come to a stop, what was his acceleration? Don't forget units and
directions if appropriate?
Your answer
A 1200 kg car accelerates at a rate of 3.97 m/s^2. What is the net force acting on the car?
Answer:
The answer is 4764 NExplanation:
The force acting on an object given it's mass and acceleration can be found by using the formula
force = mass × accelerationFrom the question we have
force = 1200 × 3.97
We have the final answer as
4764 NHope this helps you
Distance between the centres of charged body is inevrsley proportional to the magnitude of electric force.
TRUE or FALSE
Answer:
TRUE
Explanation:
a 24 N force is being applied to the right, while a 345 N force is being applied to the left of a 18 kg crate.
What is the acceleration of the crate?
Answer:
a = 17.83 m/s²
Explanation:
Given:
Fnet = 345N - 24N
m = 18kg
Unknown:
a or Acceleration of the crate
Formula and solution:
Fnet = F1 + F2
Fnet = 345N - 24N
Fnet = 321N
a = Fnet/m
a = 321 kg m/s² ÷ 18 kg
Final Answer:
a = 17.83 m/s²
What is the first step needed to solve ? (1 point)
(03.04 LC)
What is the first step needed to solve (3/4)x - 3 = 18
Select one:
a. Add 3 to both sides
b. Subtract 18 from both sides
c. Multiply both sides by 3
d. Divide both sides by 4
Answer:
answer is add 3 to both sides
A car in front of the school goes from rest to 27 m/s in 3.0 seconds. What is its acceleration?
Answer:
9m/s^2
Explanation:
v= v0+at
27= 0 + (a* 3.0)
= 9
Which of the following careers is most likely to require business skills?
Systems Analyst
Hardware Engineer
Software Engineer
Database Administrator
Answer:
C. Software Engineer
Electromagnetic induction is the process of producing an electric current by moving a loop of wire ____.
Answer:
through a magnetic field.
Explanation:
How does science help us understand Earth’s complex systems?
A. By focusing only on humans, it helps us understand how people are affected by Earth’s systems.
B. By viewing the Earth as a single integrated system, it helps us understand how humanity and Earth are related, and how the systems work
C. By viewing the Earth as many separate systems, it helps us understand how each system functions alone.
D. By looking at other planets, it helps us understand their complex systems and how they are similar to ours.
Answer:
C
Explanation:
By viewing the earth as many separate systems, it helps us understand how each system functions alone
Which atom is most likely to accept electrons to form an ionic bond?
A. a mercury ion with a negative 2 charge
B. a potassium ion with a negative 1 charge
C. radon, a noble gas with 8 valence electrons
D. sulfur, a nonmetal with 6 valence electrons
Answer:
D.
Explanation:
what do you mean by quantization of energy?
Answer:
The quantization of energy refers to the fact that at subatomic levels, energy is best thought of as occuring in discreet "packets" called photons. The red and blue photons are therefore "quantized" just as dollar bill denominations are "quantized". Each photon contains a unique amount of discreet energy.
A test rocket is launched by accelerating it along a 200.0 m, 35 degree incline at 1.25 m/s/s starting
from rest. The instant the rocket leaves the incline, its engines turn off, it is subject only to gravity,
and air resistance can be ignored. Find
a) the maximum height above the ground the rocket reaches
Answer:
The maximum height above the ground the rocket reaches is 123.1 m.
Explanation:
Let's find the final velocity at a distance of 200 m:
[tex] v_{f}^{2} = v_{0}^{2} + 2ad [/tex]
Where:
[tex]v_{f}[/tex] is the final speed =?
v₀ is the initial speed =0
a is the acceleration = 1.25 m/s²
d is the distance = 200 m
[tex]v_{f} = \sqrt{2ad} = \sqrt{2*1.25 m/s{2}*200 m/s} = 22.4 m/s[/tex]
Now, when the engines of the rocket turn off and it is subject only to gravity, the height reached is:
[tex] v_{fy}^{2} = v_{0y}^{2} - 2gh [/tex]
Where:
[tex]v_{f}[/tex] = 0
[tex]h = -\frac{v_{fy}^{2} - v_{0y}^{2}*sin(\theta)}{2g} = \frac{(22.4*sin(35))^{2}}{2*9.81 m/s^{2}} = 8.4 m[/tex]
Finally, the maximum height above the ground is:
[tex] h_{max} = h + H [/tex]
Where H is the vertical component of the 200.0 meters.
[tex]h_{max} = h + H = 8.4 m + 200.0 m*sin(35) = 123.1 m[/tex]
Therefore, the maximum height above the ground the rocket reaches is 123.1 m.
I hope it helps you!
Maddie is the fastest runner on her soccer team and loves to kick the ball. Using Maddie as an example, explain how each of Newton's laws of motion could apply to Maddie and the soccer ball as she lines up, kicks, and scores a goal for her team.
Answer:
Explanation:
When she lines up------1st law: the ball will be at rest until she acts on the ball
The first law state that "In the first law, an object will not change its motion unless a force acts on it."
When she kicks the ball----2nd law: the ball constantly changes direction and velocity depending on the applied force by her
The second law states that "In the second law, the force on an object is equal to its mass times its acceleration."
When she scores a goal-----3rd law: the force with which she kicks the ball to score a goal is equal to the reaction of the goal net
The third laws states that "In the third law, when two objects interact, they apply forces to each other of equal magnitude and opposite direction."
Identify the possible source of Earth's magnetic field.
Answer:
The magnetic field is generated by electric currents due to the motion of convection currents of a mixture of molten iron and nickel in the Earth's outer core: these convection currents are caused by heat escaping from the core, a natural process called a geodynamo.Explanation:
[tex]hii[/tex]
have a nice day ✌️
8. The human body is a what? conductor, insulator, electrolyte, or low reaistive
Answer:
The human body is a Conductor
A ball is thrown eastward into the air from the origin (in the direction of the positive x-axis). The initial velocity is 40 i + 32 k, with speed measured in feet per second. The spin of the ball results in a southward acceleration of 6 ft/s2, so the acceleration vector is a = −6 j − 32 k. Where does the ball land? (Round your answers to one decimal place.) ft from the origin at an angle of ° from the eastern direction toward the south. With what speed does the ball hit the ground? (Round your answer to one decimal place.) ft/s
Answer:
The answer is "52.61 ft/s"
Explanation:
Taking the motion in the z-direction is [tex]u_z = 32 , \ \ a_z = - 32[/tex]
[tex]t = 2 \frac{u_z}{( - a_z )}\\\\[/tex]
[tex]= 2 \times \frac{32}{32}\\\\ = 2 \ sec\\\\[/tex]
z-axis change is zero z and the x-path the same way:
[tex]= u_x t + \frac{1}{2} a_x t^2 \\\\= 40 \times 2 + 0.5 \times 0 \times 2^2 \\\\ = 40 \times 2 + 0.5 \times 0 \times 4 \\\\ = 80 +0\\\\= 80 \ ft \ \ i[/tex]
In y-direction:
[tex]= 0 \times t - \frac{1}{2} \times (6) \times 2^2\\\\ = - \frac{1}{2} \times (6) \times 4\\\\ = - (6) \times 2\\\\= - 12 ft \ \ j[/tex]
the ball lands at:[tex]( 80 i - 12 j + 0 k ) ft[/tex]
Magnitude:
[tex]\to ( 80^2 + (-12)^2 )^{\frac{1}{2}}\\\\\to ( 6400 + 144 )^{\frac{1}{2}}\\\\\to ( 6544 )^{\frac{1}{2}}\\\\\to 80.89 \ ft[/tex]from the origin.
angle:
[tex]\to \tan^{-1} ( \frac{12}{80} )\\\\\to 8.53^{\circ}[/tex]
velocity:
[tex]\to 40 i + ( 0 - 6 \times 2 ) j + ( 32- 32 \times 2 ) k\\\\\to 40 i + ( - 12 ) j + ( 32- 64 ) k\\\\\to 40 i - 12 j - 32 k\\\\\to ( 40^2 + 12^2 + 32^2 )^{\frac{1}{2}}\\\\\to (1600+144+1024)^{\frac{1}{2}}\\\\\to 2768^{\frac{1}{2}}\\\\\to 52.61\ \ \frac{ft}{s}[/tex]
Find the acceleration of an object when the force is 850 N and the mass is 85 kg.
Answer:
ok sooooo,
F=MA
you are looking for a
you have F= 850 N and M= 85 kg
you divide the force with the mass
you get A= 10 m/s²
Why are copies of stored digital data better than copies of stored analog
data?
A. The quality of the copies is the same, but digital data can be
copied more quickly.
B. Digital data contain only two different values, so it is easy to
distinguish between them.
c. Digital data contain many continuous values, so it is easy to
distinguish among them.
D. When many copies are made, the quality of digital copies
decreases, but not as much as that of analog copies.
Answer:
letter D.
Explanation:
When many copies are made, the quality of digital copies
decreases, but not as much as that of analog copies.
When many copies are made, the quality of digital copies decreases, but not as much as that of analog copies. Option D is correct.
What is digital data?Digital data is information represented as a string of discrete symbols, each of which can take only one of a finite number of values from some alphabet
The primary aim of digital memory is to enable the storage and retrieval of binary data.
The benefits of digital storage of information over analog procedures are similar to the advantages of digital communication of information over analog communication.
Copies of stored digital data are better than copies of stored analog data. When many copies are made, the quality of digital copies decreases, but not as much as that of analog copies.
Hence option D is correct.
To learn more about the digital data refer to the link;
https://brainly.com/question/16412578
The elements least likely to form bonds are found in which group?
15
ООО
16
O 18
Answer:
It would be O 18
2. What is the net force exerted on a 80.0 kg race-car driver while the race
car is accelerating from 0 to 50.0 m/s in 5.50 s?*
Answer:
The net force exerted on the race-car driver is 727.3 N
Explanation:
Acceleration
According to Newton's second law of motion, the acceleration of an object a is directly proportional to the net force F and inversely proportional to the object's mass m:
[tex]F=m.a[/tex]
Since we don't have the value of the acceleration, we must use the kinematic equations to calculate it.
The main formula for accelerated motion is:
[tex]v_f=v_o+a.t[/tex]
Where vf is the final speed of the object, vo is its initial speed, a is the acceleration, and t is the time.
The race-car driver accelerates from vo=0 to 50 m/s in t=5.5 s. We can calculate the acceleration, solving the above equation for a:
[tex]\displaystyle a=\frac{v_f-v_o}{t}[/tex]
[tex]\displaystyle a=\frac{50-0}{5.5}[/tex]
[tex]a=9.09\ m/s^2[/tex]
Now we calculate the net force:
[tex]F=80\ Kg\cdot 9.09\ m/s^2[/tex]
[tex]\boxed{F=727.3\ N}[/tex]
The net force exerted on the race-car driver is 727.3 N
If F = G(m1, x xm2)/r2
m2 = ?
I need help!
PLEASE HELP ME BOO!! A rocket, initially at rest, steadily gains speed at a rate of 17.0m/s2 for 5.50s during take-off.
Answer:
[tex]v\: is : 93.5 \: m {(s)}^{ - 1}[/tex]
Explanation:
[tex]given : \\ acceleration \: \boxed{a} = 17.0 \: m {(s)}^{ - 2} \\ time\: \boxed{t} = 5.50 \: s \\ but \:\: \boxed{a} = \frac{v}{t} \\ v = at = 17 \times 5.5 = 93.5 \\ the \: velocity\: \boxed{v} \: is : 93.5 \: m {(s)}^{ - 1}[/tex]
if the velocity is what you require.....cos there was no clear statement of the required value.
♨Rage♨
Answer:
Vjhc log vcvjkvjkgvjcjfkfj
Question 2
1
Without gravity, the stars, planets and all celestial objects in the universe would
Answer:
fly apart
Explanation:
gravity holds everything in place by constantly attracting both of the objects
without gravity, the objects would not be attracted anymore. Hence, they fly apart.
a 1200 kg car travels at a constant velocity of 15 m/s. what is the net force on the car?
Answer:
The answer is 18,000 NExplanation:
The force acting on an object given it's mass and acceleration can be found by using the formula
force = mass × accelerationFrom the question we have
force = 1200 × 15
We have the final answer as
18,000 NHope this helps you
PLEASE HELP... can you help with either one of them or both. And explain how
Answer:
#6 is 14 miles in 7 mins
Explanation:
you need to get the unit rate (how many miles per min) then multiply from there so you take 10/5 (because there 5 mins) and get 2 miles per min, then you take 2 an multiply it by 7 (because you want to know how far she went in 7 min) and you get 14
Answer:: 14miles in 7 mins
Why is it important to keep a fitness journal?
Answer:
To see how well you are doing.
Explanation:
Maintaining an exercise journal helps a person keep track of progress and see firsthand if he or she is sticking to a steady exercise routine.
A fitness journal is a valuable tool that provides structure, accountability, and motivation while allowing you to track progress and make informed decisions to optimize your workouts and well-being.
Monitoring Progress: Keeping a fitness journal enables you to monitor and assess your advancement over time. You may track your progress in terms of fitness by keeping track of the exercises you do, their time, and their intensity. This keeps you motivated and reveals any areas where you might need to change your workouts to efficiently attain your goals. Setting Goals: Putting your fitness objectives in writing in a journal will help you clarify your objectives. You can plan and monitor your progress towards reaching your goals if they are clear and explicit. This helps you maintain your commitment to your fitness journey by keeping you focused and giving you a feeling of direction.
To know more about fitness journal, here:
https://brainly.com/question/30281633
#SPJ4
Can someone help me with this please
Answer:
b
a
Explanation:
Why does lighting usually
lighting usually strike build
buildings and electric poles ?
GREETINGS!
lightening usually strikes the metal pole and cables above the building because they provide a safe low resistance pathway to the lightening to move from building from the concrete steel to the ground below, thats how building doesnt get any damage and high electric charge passes through it
HOPE IT HELPS YOU!
If you threw a rock somewhere with no gravity or friction the rock would..
A.) Continue at the same speed in the same direction.
B.) Stop.
C.) Move forward quickly then slowly.
D.) Move forward slowly then fall.
Answer:
A
Explanation:
Once the stone is thrown, with direction vectors and initial velocity will keep on traveling for infinite period unless there is another force to stop it.
For example, Newton's 1st law of Motion: ''Every inanimate body will continue its state of rest/motion unless acted upon by an external unbalanced force''
Since there is no friction, drag or any viscous force, our stone will travel for infinite period of time.
I hope this helps :)
