Answer:
(a) 0 (b) [tex]F=1.67\times 10^9\ N[/tex]
Explanation:
Given that,
Mass of a supertanker, [tex]m=1.7\times 10^8\ kg[/tex]
The engine of a generate a forward thrust of, [tex]F=7.4\times 10^5\ N[/tex]
(a) As the supertanker is moving with a constant velocity. We need to find the magnitude of the resistive force exerted on the tanker by the water. It is given by :
F = ma, a is the acceleration
For constant velocity, a = 0
So, F = 0
(b) The magnitude of the upward buoyant force exerted on the tanker by the water is equal to the weight of the ship.
F = mg
[tex]F=1.7\times 10^8\times 9.8\\\\F=1.67\times 10^9\ N[/tex]
Hence, this is the required solution.
A block of mass 4 kg rests on a frictionless horizontal surface, what horizontal force is required to accelerate the block at 5 m/s^2 ?
Answer:
20N
Explanation:
Given parameters:
Mass of the block = 4kg
Acceleration = 5m/s²
Unknown:
Horizontal force needed to accelerate the block = ?
Solution:
According to Newton's second law of motion;
Force = mass x acceleration
Now insert the parameters and solve;
Horizontal force = 4 x 5 = 20N
A tablecloth can be pulled out from underneath a fully set table without breaking plates or glassware. The reason is that the objects follow Newton's:
Answer:
newtons law of force
newtons law of force explains that something may or can or canot move depending on the objexts mass.
6. Which Thanksgiving dish contains the most dietary fiber ? (Corn) (Mashed Potatoes) (Sweet Potatoes) (Pecan Pie)
Answer:
The correct option is;
Sweet Potatoes
Explanation:
The dietary fiber in Corn = 2.7 g per 100 g
The dietary fiber in Mashed Potatoes = 1.3 g per 100 g
The dietary fiber in Sweet Potatoes = 3 g per 100 g
The dietary fiber in Pecan Pie = 2.1 g per 100 g
Therefore, the Thanksgiving dish that contains the most dietary fiber per 100 g is Sweet Potatoes
how many atoms are in 4ZnF₂ ?
Answer's
Explanation's
The rotation of earth takes approximately _______ to complete, and the revolution of earth takes approximately _______ to complete.
A.
1 day, 30 days
B.
12 hours, 24 hours
C.
365 days, 24 hours
D.
24 hours, 365 days
Answer:
D. 24 hours, 365 days
Explanation:
please mark me brainlist
and this is correct answer
1 kg sample of aluminium is stored in a laboratory. In a different laboratory, in the same town,
there is a 1 kg sample of iron.
Which quantity must these two samples always have in common?
Same density
Same temperature
Same volume
Same weight
Plz explain
Answer:
same weight
Explanation:
because same
What is the speed of a car that travels 400 m in 20
minutes?
Answer:
3.33 m/s
Explanation:
time = 20 minutes = 20 x 60 = 120 seconds
distance = 400m
speed = distance/time
= 400/120
= 40/12
= 10/3
= 3.33m/s
Click to review the online content. Then answer the question(s) below, using complete sentences. Scroll down to view additional questions. Free Weights and Machines What are some things to consider when deciding to use free weights or machine weights?
Machine weights are safer when used correctly, but free weights can be dropped and cause injury. These are safety considerations to keep in mind whether using free weights or machine weights. But because they aren't big, complicated machinery, free weights are less expensive.
What are free weights or machine weights?Resistance machines and free weights are very different from one another in terms of how they work and the results they can create.
Machines are set in place and can only move in a few directions, whereas free weights can be moved in whatever direction the user selects. This is the main distinction between machines and free weights. Free weights require you to utilize more stabilizing muscles to control them, whereas resistance machines help you by stabilizing you while you move.
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A driver speeds along a curved road and sees a fallen tree on the road. He applies the brakes but is unable to stop in time. When the car hits the tree, it slows down from 6 meters/second to 0 meters/second. What was the change in velocity during this time?
Answer:
It's -6 meters/seconds.
Explanation:
Answer:
-6
Explanation:
GIVING BRAINLY, FOLLOW AND STARS, HELP!
When a solid object absorbs infrared rays, what happens to the particles
in that object?
Answer:
All objects emit and absorb infrared radiation. The hotter an object is the more energy it radiates per second. Infrared radiation can travel through a vacuum. When infrared radiation hits an object some of the energy is absorbed, making the objects temperature increase, and some is reflected.
Explanation:
What does the xylem do?
A .stores the glucose
B captures the sunlight
C absorbs oxygen into the leaf
D carries water from the roots to the leaves
Answer:
D carries water from the roots to the leaves.
is the answer.
Explanation:
Xylem is the specialised tissue of vascular plants that transports water and nutrients from the plant–soil interface to stems and leaves, and provides mechanical support and storage.
Answer:
D carries water from the roots to the leaves
Explanation:
have a nice day
Explain how an iron needle can become magnetized...
Use these words in your answer:
Domain
Align
Force
Answer:
If a piece of iron is brought near a permanent magnet, the electrons within the atoms in the iron orient their spins to match the magnetic field force produced by the permanent magnet, and the iron becomes “magnetized.”
Explanation:
i dont know how to add align and domain
what allows for movement
Choose the correct answer:
-excretory
-immune/hymophatic
-integumentary
-muscular
I WILL GIVE BRAINLIEST!!!!
The image above shows two opposite forces acting on a rope, what can we say is true about the affect of the forces on the rope?
A train travels for 120 seconds (s) at a speed of 50 meter per second (m/s). What was the distance (m) that it travelled?
Answer:
2
Explanation:
50 times 2
An 4-kg ball experiences a force and accelerates at a rate of 1.5 m/s.
What is the strength of this force?
Answer:
6.0 N
Explanation:
The strength of a force is expressed as the magnitude of the force in Newton.
The formula to apply here is :
Force= mass * acceleration
F=ma
Mass, m = 4 kg
Acceleration = 1.5 m/s²
Force= 4 *1.5 = 6.0 N
A crate weighing 523 N rests on a plank that makes a 22.0 angle with the ground. Find the components of the crate's weight force parallel and perpendicular to the plank. ( Fgx = –196 N, Fgy = –485 N)
Answer:
Explanation:
The weight of the crate will e equal to its normal reaction R
Since R = mgsin theta = W
W = mgsintheta ( resolved along the vertical perpendicular to the plank
Fy = 523sin22°
Fy = 195.92N
Since the weight is acting along the negative y direction,
Fy = -195.92N
The force parallel to the plank will be the force acting in the horizontal direction.
Fx = Fcos theta
Fx = 523cos 22°
Fx = 484.9N
What is the relationship between force and distance?
Answer:
Force is the action exerted on a body of mass to move from one palce to another or to change position
While distance is a measure of how far and object has travelled from its starting point, or how far away it is OR Distance is a measure of seperation between two points
Explanation:
The relationship between them both is MOTION .......thats what I think
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PLEEASEEE HEELLPPPP !!!!!!!
You leave Chicago, Illinois at 8am and fly to Portland, Oregon. Your flight takes 2.5 hours. What time do you arrive in Portland?
Answer:
10:30am ........................
Answer:
maybe around 10:30 I would say
A ball of mass 200 g rolls along the ground at a speed of 5.2 m/s. Calculate the kinetic energy of the ball. Give your answer to one decimal place.
The formula for kinetic energy is 1/2 mv2. The kinetic energy is 0.40 m/s2.
What is Kinetic energy?
Kinetic energy, which can be seen in the movement of an object or subatomic particle, is the energy of motion. Kinetic energy is present in every particle and moving object.
Examples of kinetic energy in action include a person walking, a baseball soaring through the air, a piece of food falling from a table, and a charged particle in an electric field. An object has no kinetic energy if it is not moving.
Potential energy is present in stationary objects (the other main type of energy). When an object is propelled into motion by a force like gravity, its potential energy is transformed into kinetic energy.
Therefore, The formula for kinetic energy is 1/2 mv2. The kinetic energy is 0.40 m/s2.
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PLZZZ HELLPP MEE
Which of the choices below shows a model of the atom Neon (Ne)?
B.
D.
Ne
Ne Ne
OB
ОС
OD
Answer:
A is answer
Explanation:
this is helpful
If the magnification of the image is NEGATIVE, the image is ( choose two .25
* answers)
virtual
real
inverted
reduced
Answer:
C. Inverted
Explanation:
When a negative magnification is obtained, it means that the image is inverted. When an object is placed far away from a converging lens than the focal length, the image is formed on the opposite side of the lens. In this case, a screen is introduced at image position for viewing. The image is focused up-side down. It is real and inverted.
For questions 1 - 4 complete the representations for the four patterns below. Provide the mathematical
model. Complete the data table using the A value provided. Insert a graph using the data table you filled
out (you may use desmos ). (40pts)
Pattern with 1. Horizontal Line
2. Linear
3. Quadratic
4. Inverse
constant (A-value) A = 100
(Proportional)
A = 100
A= 100, B = 0
A = 100
Mathematical
Model
y =
y=
y =
y =
Y у
y у
Y у
у
Data Table Form
х
1
2
5
10
х
1
2
5
10
х
1
2
5
10
х
1
2
5
10
Graph Form
Answer:
Explanation:
1
2
3
The third table shown in the diagram below can be modelled with the equation, y = x + 2, therefore, it represents a linear equation.
What is a Linear Function?A linear function is a function whose graph represents a straight line when the points are plotted, and also can be modelled by the equation, y = mx + b.
b is the value of y when x = 0 (y-intercept)
m is the slope or unit rate.
Thus, the third table shown in the diagram below can be modelled with the equation, y = x + 2, therefore, it represents a linear equation (see attachment). The last table has a constant slope of -3, hence it represents a linear function.
Table of functions
From the given table, we need to determine which of the table is a linear table. To determine that, we must check which of the table has a constant rate of change
Looking at the last table;
Slope = -4-(-2)/2-1
Slope = -4+1/1
Slope = -3
Since the last table has a constant slope of -3, hence it represents a linear function.
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3. As the ice melts into liquid water, what happens to the kinetic energy of the particles in the sample?
4. How does the kinetic energy of the particles in the sample relate to the sample’s temperature?
Answer:
As ice melts into water, kinetic energy is being added to the particles. This causes them to be 'excited' and they break the bonds that hold them together as a solid, resulting in a change of state: solid -> liquid.
Explanation:
As the ice melts into liquid water, the kinetic energy of the particles in the sample increase. The temperature of the sample is directly proportional to the kinetic energy of the particle.
What is Kinetic energy?The kinetic energy of an object is the energy which it possesses due to the motion of the object. Kinetic energy is defined as the work which is needed to accelerate a body of a given mass from the rest position to its stated velocity. The body of an object maintains the same amount of kinetic energy which it gained during its acceleration unless its speed changes.
The temperature is directly proportional to the kinetic energy of the object. As the temperature of the object increases the phase of the object changes from solid to liquid.
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30 POINTS!
A coconut falls 18 m from the top of a palm tree. How fast will the coconut be traveling when it reaches the ground? (Hint: KEinitial = 0, PEfinal = 0.)
A. 19 m/s
B. 13 m/s
C. 9.4 m/s
D. 27 m/s
Answer:
d
Explanation:
give any five difference between of solar system and constellation
Answer:
constellation is just a name for a set of stars that are perceived, from an earth viewpoint, to make a form in tge night sky…. the Plough, the Great Bear, for example. A galaxy is a formation of stars that are revolving around a centre, our own solar system lies in the outer edge of the galaxy known as the Milky Way.
Explanation:
1. A particular lever is 90.0% efficient. If 50.0 J of work are done on the lever, then how much work does the lever do on its load? 2.The mechanical advantage of a pulley system is 4.00. Using this pulley system, how much force do you need to exert to lift a 500.0 N box?
Answer:
Explanation:
Using the efficiency formula;
Efficiency = Work done by the machine (output)/work done on the machine (input) ×100%
Efficiency =w/50 ×100
90 = 100w/50
Cross multiply
90×50 = 100W
4500 = 100W
W = 4500/100
W = 45Joules
Hence the lever does 45Joules of work on its load
2) Mechanical Advantage= Load/Effort
Given
MA = 4
Load = 500N
4 = 500/Effort
Effort = 500/4
Effort =125N
Hence the effort required to lift the load is 125N
1. The work done by the lever on its load is 45 J
2. The force needed to exert to lift the load is 125 N.
1. Determination of the work done by the lever on the load.
Work Input = 50 J
Efficiency = 90%
Work Output =?[tex]efficiency \: = \frac{work \: output}{work \: input} \times 100 \\ \\ 90\% = \frac{work \: output}{50} \\ \\ cross \: multiply \\ \\ work \: output \: = 90\% \: \times 50 \\ \\ work \: output = 0.9 \: \times 50[/tex]
Work Output = 45 JTherefore, the work done by the lever on the load is 45 J
2. Determination of the force needed to lift the load
Mechanical advantage (MA) = 4
Load (L) = 500 N
Effort (E) = ?[tex]mechanical \: advantage \: = \frac{load}{effot} \\ \\ 4 \: = \frac{500}{effort} \\ \\ cross \: multiply \\ \\ 4 \: \times effort \: = 500 \\ \\ divide \: both \: side \: by \: 4 \\ \\ effort \: = \frac{500}{4} \\ [/tex]
Effort = 125 NTherefore, the force needed to lift the load is 125 N
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A haiku about motion.....I need a haiku about motion...if someone like writing pls help, write a haiku about MOTION
Answer:
Motion is a powerful experience
Motion brings out the best in people
Motion can flow like oceans
Explanation:
Is better to run or walk when it is raining?
Answer:
run
Explanation:
run - less wet
walking - more wet