Answer:
I believe it's A (450 N)
Explanation:
Since both you and your dad are pushing in the same direction, you must add the force N to get the net force, which in this case in 450 N
in general, what happens to the density and temperature of a gas as it expands?
The temperature of a gas will increase and the density will decrease as it
expands.
The expansion of gas happens as a result of an increase in the elastic
collision of the atoms. This is as a result of the increase in temperature which causes the atoms to be more spatially arranged.
The density of gas also reduces as a result of the same number of gas
molecules occupying more volume.
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If the volume of the gas increases from 600 to 800 in. 3, by how much does the pressure change?.
Answer: decreases by 7.5
Explanation:
Which example shows an endothermic reaction?
reactants + thermal energy --> products
products + thermal energy --> reactants
products --> reactants + thermal energy
reactants --> products + thermal energy
please help
Answer:
reactants --> products + thermal energy
Explanation:
Heat is absorbed in endothermic reaction.
What is Flexibility ?
=> Flexibility is the ability of a joint or series of joints to move through an unrestricted, pain free range of motion.
Based on the chemical equation, use the drop-down menu to choose the coefficients that will balance the chemical equation:
(
)Zn + (
)HCl → (
)ZnCl2 + (
)H2
Answer:
Given equation
[tex]\\ \sf\longmapsto Zn+HCl\longrightarrow ZnCl_2+H_2[/tex]
Balanced equation
[tex]\\ \sf\longmapsto Zn+2HCl=ZnCl_2+H_2[/tex]
Reactant side:-
Zn=1Cl=2H=2Product side:-
Zn=1Cl=2H=2Hence balanced
Answer:
1 2 1 1
Explanation:
The position-time graph for two drivers (A and B) are shown in the figure below. Which of the following statements is correct?
a. The two drivers are for sure moving in parallel directions
b. Driver B is moving faster than driver A.
c. Driver A is moving faster than driver B.
d. The two drivers are moving at the same speed
Answer:
A
Explanation:
What are the 4 classes of Platyhelmintheses and how are they different.
Answer: Platyhelminthes are divided into four classes: Turbellaria, free-living marine species; Monogenea, ectoparasites of fish; Trematoda, internal parasites of humans and other species; and Cestoda (tapeworms), which are internal parasites of many vertebrates.Mar 5, 2021
Explanation:
a wave is recalling with a speed of 5m/s for 7 seconds. How far has the wave travelled?
Answer:
35m
Explanation:
Take the speed of 5m/s and multiply that by 7 seconds. You get 35m
1. The two images below show the area swept out by the same planet during two separate time spans. If the first picture represents the area swept out during a time
of 'A' days and the second represents the area swept out during a time of "B* days, which of the following statements is true about A and B? Pls help
Answer:
its A
Explanation:
took the test
In essence, this means that planets do not travel along their orbits at a constant speed. Instead, they move at different speeds so that the line connecting the centres of the Sun and the planet covers the same amount of ground in equal amounts of time. Thus, option A is correct.
What planet during two separate time spans?The law of areas is Kepler's second law of planetary motion. A line drawn between a planet and the Sun is said to cover equal areas in an equivalent amount of time according to this law.
The velocity of a planet as it travels along its elliptical course is described by Kepler's Second Law. An elliptical object will cover equal amounts of space in a same amount of time if a line is drawn from the sun to the planet. This implies that the planet moves more slowly away from the sun and faster toward it.
Therefore, at equal times, the planet must cover a wider arc when it is nearer the Sun than when it is farther away.
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When might people use data tables and graphs in their everyday lives? How are these uses similar to and different from the way in which scientists use these same tools?
Do you think scientists need data tables and graphs to do their work?
Which fields of science do you think might use data tables and graphs more than others?
Answer:
hahaha bisa aja ente gan di download di sini adalah salah satu
Which type of electromagnetic radiation is useful in communications technology?
A. X-rays
B. visible light
C. radio waves
D. ultraviolet radiation
What is the correct description for an element?
A. Elements are made of two or more different types of atoms, chemically joined together
B. Elements are made up of one type of atom only
C. Elements are made of two or more types of atoms, not chemically joined
Answer:
B
Explanation:
Elements are made up of one type of atom only
what would be Vy and pllzzzzzzz help
Answer:
2400m/s , 2240,2080,1920m/s
Which statement identifies the chemical property of iron that results in the formation of rust?
A. It is nonflammable.
B. It reacts with oxygen to form a new substance.
C. It has a very high melting point.
D. It conducts electricity.
Answer:
B, It reacts with oxygen to form a new substance
Explanation:
B
the average speed of a runner in a 483. meter race is 3.0 meters per second. How long me runner to complete the race? Dont include units, round nearest whole number.
Answer:
161
Explanation:
[tex]v=\frac{d}{t}[/tex] slove for t
[tex]t=\frac{d}{v}[/tex]
Insert values of d and v
[tex]t=\frac{483}{3} \\[/tex]
t=161
An object on Earth weighs 600 N and on Mars 100 N. If its mass on Earth is approximately 60 kg what is the mass of the object on Mars?
Answer:
I think its
10 kg
plzz plzz plzz. mark as brainliest
If the mass of an object is approximately 60 kg on earth then its mass remains the same on Mars which is 60 kg because mass does not change from place to place.
What is mass?Mass in physics is a numerical representation of inertia, a fundamental property of all matter. What a body of matter is fundamentally is the resistance it offers to a change in its speed or location brought on by the application of a force. The more mass a body has, the less of a change a force exerts results. The kilogram is the unit of mass in the International System of Units, and it is defined by Planck's constant as being equal to 6.62607015 × 10⁻³⁴ joules second (SI).
According to the question, the weight of an object depends on gravity which is different from place to place so weight also varies from place to place but the mass is constant everywhere it does not change. So, if the mass of an object is 60 kg on earth then it remains the same on mars also.
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which gravitational pull has the greatest effect on tides?
Answer: The pull of the Moon's gravity on Earth is the primarily cause of tides and the pull of the Sun's gravity on Earth is the secondary cause. The Moon has a greater effect because, although it is much smaller than the Sun, it is much closer. The Moon's pull is about twice that of the Sun's.
Based on the chemical equation, use the drop-down menu to choose the coefficients that will balance the chemical equation:
Answer:
its in this order 2,1,1
Explanation:
trust me bro
Answer:
221 is the actual answer
Explanation:
dont trust the person above me
A car was traveling on a straight road at a constant speed of 50 kilometers per hour. Over the next two minutes, the car came to travel 80 kilometers an hour. Which of the following is true?
The acceleration of the car over the 2 minutes is 0.07 m/s².
Acceleration of the car
The acceleration of an object is the rate of change of velocity of the object with time.
Acceleration of the car over the 2 minutesThe acceleration of the car over the 2 minutes is calculated as follows;
a = Δv/t
a = (v - u) / t
where;
v is the final velocity = 80 km/h = 22.22 m/su is the initial velocity = 50 km/h = 13.89 m/st is the time of motion, = 2 mins = 120 sa = (22.22 - 13.89) / 120
a = 0.07 m/s²
Thus, the acceleration of the car over the 2 minutes is 0.07 m/s².
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an unbalanced force of 965 N causes an object to accelerate at 54.5 m/s^2. what is the mass of the object
Answer:
[tex]F=ma \\ 965 = m(54.5) \\ m = \frac{965}{54.5} \\ m = 17.7kg[/tex]
what is pole of magnet
and
define the term magnetic line of force
Answer:
1. The magnetic pole is the region at each end of a magnet where the external magnetic field is the strongest.
2. magnetic line of force - a line of force in a magnetic field. field line, line of force - an imaginary line in a field of force; direction of the line at any point in the direction of the force
Explanation:
help me please eeeee
Answer:
I asked the same question
The lithosphere is a rigid layer made of Earth's entire crust and the very top part of Earth's mantle. This rigid layer is divided into several large pieces, or plates. The lithospheric plates float on top of the _______, which is a weak part of the mantle that flows slowly.
Answer:
dxfgjcfygu.h
Explanation:
so sorrymcgvlg;uh'ijuoi'ogf;yulcfxkchgvjhgijuiu
y'i;fyltkxfgchghui
uy8't;fultdyk
A plane is flying through the sky at a constant speed. The thrust of the aeroplane (making it go forwards) is 100N. Air resistance is also acting on the plane. What must the resultant (overall) force be on the plane?
A: 0N
B: 50N
C: 100N
D: 150N
Answer: 0N
Explanation: Hope this helps :)
last time i wrote the wrong answer for the wrong problem :)
For the constant speed, the resultant force on the plane is 0N. So, the correct option is A.
What is Force?A force is defined as the parameter that can change the momentum of an object that can cause an object with mass to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or pull where force has both magnitude and direction, making it a vector quantity.
For above given information, the plane is moving at a constant speed. According to Newton's first law, the net external force on the aircraft due to the thrust generated by the propeller must be zero and air resistance is equal and in opposite directions to produce zero net force.
Thus, for the constant speed, the resultant force on the plane is 0N. So, the correct option is A.
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Convert 9/4 hours into minutes
Am guessing;
9/4 × 60/1 =135
H is a chemical (blank) and H2 is a chemical (blank)
Please I need help!
Answer:
"H" is a chemical symbol and "H2" is chemical formula.
How are particles in liquids, solids, and gases the same? How are they different?
Answer:
Gases, liquids and solids are all made up of atoms, molecules, and/or ions, but the behaviors of these particles differ in the three phases. ... gas are well separated with no regular arrangement. liquid are close together with no regular arrangement. solid are tightly packed, usually in a regular pattern.
Explanation:
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How are electrical energy, thermal energy, and mechanical energy related?
Answer:
motion of molecules
Explanation:
I believe that is true
A train travels 9 meters in the first second of travel, 9 meters again during the second second of travel, and 9 meters again during the third second. What is its acceleration?
Answer:
Zero
Explanation:
Acceleration is defined as the rate of change in speed. The speed during the first second is 9m/1s = 9m/s. During the second second is again 9m/1s = 9m/s and again 9m/s for the third second. Being the speed the same, the acceleration is 0
Watch the video and make a ninja star. Once you have made a ninja star, 5 Point Ninja Star. Explain the energy transfer in the ninja star once it has been assembled.
PLEASE HELP
Answer:
kinetic energy because it is movement
Explanation:
