In order to get an object moving, you must push harder on it than it pushes back on you.
Answers
Answer:
False.
Explanation:
According to Newton’s Third Law of Motion, it is practically impossible to push harder on an object than it pushes back on you because for every action, there's an equal but opposite reaction.
In order to get an object moving (motion), the net force exerted on the object must be greater. Thus, the force acting on an object in motion is not balanced.
Net force can be defined as the vector sum of all the forces acting on a body or an object i.e the sum of all forces acting simultaneously on a body or an object.
Mathematically, net force is given by the formula;
\( Fnet = Fapp + Fg\)
Where;
Fnet is the net force.
Fapp is the applied force.
Fg is the force due to gravitation.
Related Questions
(ii)
Calculate the amount of energy required to melt 15 kg of ice at 0 °C.
Specific latent heat of fusion of ice = 3.4 x 10J/kg.
Answers
(I think there is a power of 5 missing on your number)
Gravity and magnetism are both
A common forces
B natural cycles
C states of matter
D forms of energy
Answers
Answer:
Explanation:
Comment
You have to read this carefully enough that you don't mix up energy and forces.
Gravity is a force. If you don't believe me try jumping off a building. Which way are you going to go and why? Down because gravity attracts your mass.
So Magnetism must be a force as well. It acts in one direction, but not a specific one the way gravity acts). It also either attracts or repulses (pushes an object away)
Answer A
Common Forces
Which of the following feedbacks are definitely positive (that is, there is no uncertainty that they are positive)? [select all that apply] Laspe rate feedback Water vapor feedback Ice albedo feedback Cloud feedback Question 4 1 pts Which of these feedbacks affect the terrestrial radiation budget? [select all that apply] Lapse rate feedback Ice-albedo feedback Water vapor feedback Cloud feedback
Answers
The positive feedbacks without uncertainty are water vapor feedback. The feedbacks that affect the terrestrial radiation budget are lapse rate feedback, ice-albedo feedback, water vapor feedback, and cloud feedback.
Among the feedbacks listed, the ones that are definitely positive (without uncertainty) are: 1. Water vapor feedback: An increase in temperature leads to an increase in atmospheric water vapor content, which amplifies the greenhouse effect and further enhances warming. This feedback is positive. The feedbacks that affect the terrestrial radiation budget (the balance of incoming and outgoing radiation at the Earth's surface) are: 1. Lapse rate feedback: This feedback is related to the vertical temperature profile of the atmosphere. If the lapse rate (the rate at which temperature changes with altitude) decreases with warming, it can amplify the warming or cooling effects. It affects the radiation budget indirectly by influencing the atmospheric temperature structure. 2. Ice-albedo feedback: When temperatures rise, ice and snow cover decrease, exposing darker surfaces (such as land or ocean) that absorb more solar radiation. This leads to further warming, creating a positive feedback loop that affects the radiation budget. 3. Water vapor feedback: As mentioned earlier, an increase in temperature leads to increased atmospheric water vapor content. Water vapor is a potent greenhouse gas that affects the radiation budget by trapping outgoing longwave radiation and amplifying the greenhouse effect.b4. Cloud feedback: Changes in temperature and atmospheric moisture content can affect cloud formation and properties. Clouds can either trap heat (positive feedback) or reflect sunlight back to space (negative feedback), depending on their type, altitude, and coverage. The net effect of cloud feedback on the terrestrial radiation budget depends on the specific cloud changes in response to warming.
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what energy change takes place when the cell absorbs sunlight
Answers
Answer:
It is called photosynthesis.
Explanation:
The image below shows a weather service map.
Which detail best describes this map?
shows isolines and isobars
shows types of precipitation
was created for newspapers
is probably not used to make forecasts
Answers
The detail that best describes the map given above is: "it shows isolines and isobars" (Option A).
What are Isolines and Isobars?An isoline is a line that links two locations with the same value. On a topographic map, for example, brown contour lines connect places of equal height. Isobars are used to depict air pressure dispersion.
On a weather map, isobars are lines of constant or equal pressure. They may be used to locate areas of low or high pressure over a large area (such as the United States), and they can also tell us how intense the system is.
Isoline maps have several advantages.
They:
are simple to grasp indicate relative increase/decrease in values show progressive shift and spatial patterns exhibit data across physical and political bordersThe circular lines are isobars that connect areas of equal barometric pressure, much like contour lines on a map. Air goes from high to low pressure, and the bigger the pressure differential, the stronger the airflow or wind. Closely spaced isobars imply stronger winds.
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Afurshvbgbe8rysn9gynsygviubf gjdsh gyrfbt
Explanation:
the answer is a
How does the amount of a relationship between a ball’s height above the ground ( 0m, 1m, 2m, 3m, 4m 5m ) affect the gravitational potential energy (J).
Answers
Answer:
They are linearly proportional, i.e. the higher the ball is, the more potential energy it has.
Explanation:
The formula for gravitational potential energy is PE=mgh where m is mass of the object, h is height above the ground and g is the constant of gravitational acceleration (9.81 m=s²). So, if we increase the heigth, the potential energy also increases.
a wind turbine is an example of what kind of device
a. a generator
b. a transformer
c. a motor
d. an electromagnet
Answers
Answer:
it’s an example of a generator.
Explanation:
Answer:
Generator
Explanation:
valid
Once its rockets have ceased firing, an intercontinental ballistic missile will follow a path that is best described as.
Answers
Once its rockets have ceased firing, an Intercontinental Ballistic Missile will follow a path that is best described as an ellipse with the center of the Earth at one focus.
As the ellipse is the set of points, on a plane whose distance from two fixed points sums up to constant, in That describes all free-fall paths near Earth, it got The Major Axis which is the longest diameter and the widest part of the ellipse it basically starts from one side of the ellipse crossing the center to the other side and the Minor Axis which is the shortest diameter and present at the narrowest part of the ellipse.As the ellipse explains all free-fall paths near Earth (free-fall is referred to as the acceleration of objects toward the Earth when dropped at rest)
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3) For the graph on the right, the graphical representation between speed and mass could best be described as: A. The speed of fall is directly proportional to the mass. B. The speed of the fall is proportional to the square root of the mass. C. The speed of fall is inversely proportional to the mass. D. The speed of the fall is proportional to the square of the mass. E. There is no relationship between the speed of fall and mass. speed of fall mass
Answers
Answer:
B
Explanation:
KE=0.5mv^2
The speed is inversely proportional to the square root of mass
what is faster?
A. train
B. bus
C. airplane
D. boat
Answers
Answer:
airplane
Explanation:
Answer:
a plane would go by far the fastest
Explanation:
it would be airplane ,train, boat, bus
a stone is thrown down off a bridge with a velocity of 5.6 m/s. what is its velocity after 3 seconds have passed?
Answers
The velocity of the stone after 3 seconds have passed can be calculated using the formula v=u + at, where v is the velocity, u is the initial velocity, a is the acceleration (in this case the acceleration due to gravity, which is 9.8 m/s2), and t is the time. Therefore, the velocity of the stone after 3 seconds have passed will be 5.6 + (9.8*3) = 23.4 m/s.
The acceleration due to gravity causes any object to accelerate as it moves. This acceleration is always constant and acts downwards. Therefore, an object thrown with an initial velocity of 5.6 m/s will continue to accelerate and its velocity will increase. After 3 seconds have passed, the object will have an increased velocity of 23.4 m/s. In addition, when the stone is thrown off the bridge, it is subject to air resistance, which works against the stone and causes it to slow down. The magnitude of air resistance is dependent on a number of factors, such as the shape and size of the object. As such, the stone's velocity after 3 seconds might be slightly lower than the calculated value of 23.4 m/s.
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Which action best helps students determine what they need to get out of their reading?
Answers
Answer:
C.) defining the purpose for reading
Explanation:
Just did the quiz on edge
please answer withhin 400 words
Question 52 (8 points) Using schematics, draw and fully describe with labels and descriptive text a horizontal cross section of a warm front and a cold front for a mid-latitude low pressure system at
Answers
The slope of a cold front is steeper than that of a warm front.
A warm front and a cold front are two different fronts associated with a mid-latitude low-pressure system. A cross-sectional view of these fronts can be helpful in better understanding their characteristics and structure. Let's take a look at the horizontal cross-section of these fronts:
Image showing the Horizontal Cross section of a warm front and a cold front for a mid-latitude low pressure system:
The 150 isobar is shown in bold.
The vertical structure of a warm front:
In a mid-latitude low-pressure system, a warm front represents the leading edge of a warm, moist air mass as it approaches a region of cold, dry air. In general, the warm air moves toward the cold air in the form of a low-level wedge. The warm front is associated with a gradual decrease in temperature and pressure as one moves from the warm side to the cold side of the front. The steepness of the frontal slope is gradual. The slope is gradual because the warm air rises over the cool air.
The vertical structure of a cold front:
A cold front represents the leading edge of a cold, dry air mass as it advances toward a region of warm, moist air. It is usually associated with a line of clouds, precipitation, and thunderstorms. The frontal slope is steeper than that of a warm front, with a temperature drop of several degrees Celsius per kilometer of ascent. The cold air moves in a downward motion to the ground and forces the warm air up. This motion creates clouds, precipitation, and sometimes thunderstorms. Therefore, the slope of a cold front is steeper than that of a warm front.
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Using a scale diagram, calculate the resultant force acting on a sailing boat when an easterly wind provides 2.50 kN of force, the tide provides 1.20 kN of force from the direction 30.0° more northerly than the wind. Give your answer to 2 significant figures. Remember that 'an easterly wind' means a wind coming from the East. Units
Answers
The resultant force to two significant figures is F = 3.6 kN.
The direction is 9.6º to the North - East.
What is the Pythagorean Theorem?The square of the hypotenuse length of a right triangle equals the sum of the squares of the lengths of the other two sides, according to a geometric theorem.According to the Pythagoras theorem, the square of the hypotenuse of a right-angled triangle equals the sum of the squares of the other two sides. The formula for this theorem is c2 = a2 + b2, where c is the hypotenuse, and a and b are the triangle's two legs.Pythagorean triples consist of the three positive numbers a, b, and c, where a2+b2 = c2. These triples exist represented as (a,b,c). Here, a stands the perpendicular, b stands the base, and c is the hypotenuse of the right-angled triangle.The Indian Baudhayana Sulba-sutra, which was authored between 800 and 400 BCE, makes reference to the theorem. Nevertheless, Pythagoras eventually received credit for the theorem.X-axis
F₁ = 2.50 kN
Tide
cos 30 = F₂ₓ / F₂
sin 30 = F_{2y} / F₂
F₂ₓ = F₂ cos 30
F_{2y} = F₂ sin 30
F₂ₓ = 1.20cos 30 = 1.039 kN
F_{2y} = 1.20 sin 30 = 0.600 kN
the resultant force is
X-axis
Fₓ = F₁ₓ + F₂ₓ
Fₓ = 2.50 +1.039
Fₓ = 3,539 kN
F_y = F_{2y}
F_y = 0.600
To find the vector, we use the Pythagorean theorem:
\(F=\sqrt{F_{x} ^{2} } {F_{x} ^{2}}\)
\(F=\sqrt{3.539^{2}+0.600^{2} }\)
F = 3,589 kN
tan θ = F_y / Fₓ
θ = tan⁻¹
θ = tan⁻¹ 0.6 / 3.539
θ = 9.6º
Therefore,
The resultant force to two significant figures is F = 3.6 kN
The direction is 9.6º to the North - East
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A steel rod is initially very cold. If it is placed close to a fire, what happens?.
Answers
Answer:
The rod gets heated up through conduction
Explanation:
Collision 1: Blue Cart Initially at Rest Set the initial blue cart velocity to 0 m/s. Set the mass values to different values. Run the simulation and record the mass and velocity values. Before Collision After Collision mRed = _________ kg mBlue = _________ kg Use mass and velocity values to complete the following momentum table. Before Collision After Collision ∆Momentum Red Cart ________kg x _______m/s = ____________kg•m/s ________kg x _______m/s = ____________kg•m/s Blue Cart ________kg x _______m/s = ____________kg•m/s ________kg x _______m/s = ____________kg•m/s
Answers
Answer:
it is very hard but i am trying to help you.
Explanation:
A backpacker walks for 3 days in the mountains and covers 16 km. How fast was he walking in km/hr?
Answers
Answer:
0.22 km/h
Explanation:
72 hours in 3 days
16/72 = 0.222222222
round to 0.22 km/h
For future reference, Distance/Time= Speed
Which statement is true of both coal-fired power plants and solar thermal power plants?
A Both coal and solar thermal plants utilize renewable resources.
B Both coal and solar thermal plants convert the same percentage of initial energy into electricity .
C Both coal and solar thermal plants use a heat source to create steam
D Both coal and solar thermal plants create greenhouse gases
Answers
Answer:
Option C is the correct statement.
Explanation:
Both coal-fired power plants and solar thermal power plants use a heat source to create steam, which then drives a turbine to generate electricity. In a coal-fired power plant, the heat is generated by burning coal to produce steam. In a solar thermal power plant, mirrors or lenses are used to concentrate sunlight onto a fluid, which is then heated to produce steam.
Option A is incorrect because coal is a non-renewable resource, while solar thermal power plants utilize renewable solar energy. Option B is incorrect because the conversion efficiency of coal-fired power plants is typically much lower than that of solar thermal power plants. Option D is partially correct, as coal-fired power plants are a major source of greenhouse gas emissions, while solar thermal power plants do not emit greenhouse gases during operation.
write the mathemetical relation between work force and displacement
Answers
Answer:
Work is calculated as the force multiplied by the displacement in the force's direction. Work is defined as force times a displacement in the force's direction.
What is the kinetic energy of a 150 kg bear running at 3 m/s?
Answers
Explanation:
KE = ½ mv²
KE = ½ (150 kg) (3 m/s)²
KE = 675 J
The kinetic energy of a 150 kg bear running at 3 m/s would be 67.5 Joules.
What is mechanical energy?Mechanical energy is the combination of all the energy in motion represented by total kinetic energy and the total potential energy stored energy in the system which is represented by total potential energy
ME = KE + PE
As given in the problem we have to calculate the kinetic energy of a 150 kg bear running at 3 m/s
K.E =?
m = 150 kg
v = 3 m/s
The total kinetic energy is given by the formula
KE = 1/2mv²
By substituting the respective values in the formula of kinetic energy
K.E =?
m = 150 kg
v = 3 m/s
KE =1/2×150×3²
KE= 67.5
Thus, The kinetic energy of a 150 kg bear running at 3 m/s would be 67.5 Joules.
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A ray gets successively reflected from two mirrors inclined at an angle of 40º. If the angle of incidence on the first mirrors is 60º, then the net deviation of this ray is -
a)40º
b)280º
c)80º
d)160º
Answers
which best describes the surface of a concave mirror?
Answers
The surface of a concave mirror can be best described as reflective and curved inwards. The reflective surface of a concave mirror is curved inwards.
Due to this curved surface, parallel rays of light incident on the mirror converge at a single point on the axis of the mirror. This point is called the principal focus of the mirror. A concave mirror is also known as a converging mirror because it can converge light rays to a single point. The reflection produced by a concave mirror can also be referred to as "converging reflection."
The image produced by a concave mirror is virtual, enlarged, and upright when the object is located beyond the focus of the mirror.The surface of a concave mirror is highly reflective, and light can be focused by it. Therefore, concave mirrors are often used in telescopes, microscopes, and other optical instruments.
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right auricale is bigger then left aurical, why?
Answers
Explanation:
Veins carry deoxygenated blood from different parts of the body to our heart. ... Since a larger volume of blood is collected in the right auricle than that of the left auricle, right auricle is larger than the left auricle.
Parallel light rays are refracted _______and_____ to a point called as focal point after passing through convex lens.
Answers
What is the wavelength of light waves if their frequency is 5.0x1014 Hz and the speed of light 3 x
108 m/s?
A. 0.60 m
B. 6.0 mm
C. 0.060 mm
D. 0.60 um
Answers
Answer:
D. 0.60 um
Explanation:
Given the following data;
Frequency = 5.0x10^14 Hz
Speed = 3 x 10^8 m/s
To find the wavelength;
Wavelength = speed/frequency
Substituting into the equation, we have
Wavelength = 3 x 10^8/5.0x10^14
Wavelength = 6 × 10^7m
But 1 meter (m) = 1000000 micrometer (um)
6 × 10^7 meter = 0.6 micrometer.
Weight of wood is 20N block is 10 cm long 5 cm wide and 2cm high
Answers
Answer:
Four objects are situated along the y axis as follows: a 2.00 kg object is at +3.00 m, a 3.00-kg
object is at +2.50 m, a 2.50-kg object is at the origin, and a 4.00-kg object is at -0.500 m.
Where is the center of mass of these objects
A rock thrown to the right with an initial horizontal velocity of 4 m/s lands after 5
seconds. What horizontal distance has the rock traveled?
Answers
Answer:
20m
Explanation:
Using the equation s=d/t and re arranging it to solve for distance, d=St, where d=distance, s=speed, ant t=time, we can plug in known variables.
d=4*5
d=20m
there is a distance of 20m traveled
The horizontal distance traveled by the rock is 20 m
For horizontal motion, we use the formula below
⇒ Formula
s = vt.................... equation 1
⇒ Where
S = horizontal distance traveled by the rockv = velocity of the rockt = timeFrom the question,
⇒ Given:
v = 4 m/st = 5 seconds⇒ Substitute these values into equation 1
s = 4×5s = 20 mHence, The horizontal distance traveled by the rock is 20 m
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List between six and eight student organizations either offered by your school or offered
at other schools. Use online research if necessary. Explain how these organizations
encourage growth and what you can learn from being involved in them. Discuss the
skills you can learn from certain organizations, and other benefits of being involved.
Answers
Examples of student-led organizations are:
Academic and educational organizationsCommunity service organizationMedia and publications organizationsPolitical or multicultural organizationsRecreation and sports organizationsStudent government organizationsReligious and Spiritual organizations
The benefits of getting involved in any of these are many. They include but are not limited to:
It helps one to learn more about oneselfIt is a great place to develop leadership skillsIt offers the opportunity for people to build life-long networks
Skills learned in class can be practiced and honed in these organizationsSoft skills such as team-intellignce, and social intelligence can be learned in these organizationsValuable experiences that count in real-life jobs can be learned hereIt is also an opportunity to give back to the community and to have fun
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The equation to calculate density is D = m/v. For a liquid substance, which item increases as heat is applied?
volume
density
mass
density and volume
Answers
Answer:
See below
Explanation:
Things generally expand when heated ....so volume increases while mass remains the same .....this will cause the value of density to decrease
The standard gibbs free energy of formation of ________ is zero.
(a) mn (s)
(b) i2 (s)
(c) cu (s)
Answers
The standard Gibbs free energy of formation of i2 (s) is zero.
What is Gibbs free energy?The Gibbs free energy, a thermodynamic potential, may be used to determine the maximum amount of work that a thermodynamically closed system at constant temperature and pressure can perform. It also provides a foundation for any activities, including chemical reactions, that may occur under such conditions.
The greatest non-expansion work that can be taken from a closed system (one that can interchange heat and work with its surroundings but not matter) at given temperature and pressure is known as the Gibbs free energy change, which is measured in joules in the SI system. This maximum can only be reached via a system that is entirely reversible.
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