Answer:
Vector is a measurement that refers to both the magnitude of the unit and the direction of the movement the unit has taken.
Marco is playing around with blurring what is behind and in front of the main subjects in his photographs. What kind of effect or feeling might this create? A. a sense of texture and contrast among the different elements B. an excess of tension and confusion with the different elements C. a line of perfect symmetry D. a monotonous and calming effect
Blurring the background and foreground of the main subjects in photographs can create a calming effect, option D.
In what type of photography is the technique of blurring is commonly used?This technique is often used in portrait photography to make the subject stand out and appear more prominent. By blurring the surrounding elements, the viewer's focus is drawn towards the subject, creating a sense of serenity and isolation. This effect is particularly effective when the background and foreground are busy or distracting. However, it is important to note that the impact of this technique on the viewer can also depend on the specific composition and context of the photograph. Blurring the background and foreground is not likely to create a monotonous and calming effect (option D), as the blurred elements can still convey a sense of movement or depth, which can be visually engaging.
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3:05
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The rock in the picture is pushed over the edge and it begins to fall. Which type of energy conversion is taking place?
A)
mechanical to heat
B)
sound to mechanical
potential to kinetic
D)
kinetic to potential
Answer:
As the rock falls from the edge of the cliff, gravitational potential energy is converted to mechanical kinetic energy.
Explanation:
hope this helped
A horse is trotting along pulling a sleigh through the snow. To move the 225 kg sleigh straight ahead at a constant speed, the horse must pull with a force of 123N.
a. What is the net force acting on the sleigh?
b. What is the coefficient of kinetic friction between the sleigh and the snow?
Answer:
a) The net force acting on the sleigh is zero because it is moving at a constant speed.
b) [tex]F_{fr}= \mu mg = F_{pull}[/tex], then [tex]\mu = \frac{F_{pull}}{mg} = 0.0557[/tex].
Which statement defines average speed?
distance over time for a given perioddistance over time for a given period , ,
speed over time for a given periodspeed over time for a given period , ,
time over speed for a given periodtime over speed for a given period , ,
time over distance for a given period
Answer:
I think it’s b
Explanation:
Average speed is calculated by dividing the total distance that something has traveled by the total amount of time it took it to travel that distance. Speed is how fast something is going at a particular moment. Average speed measures the average rate of speed over the extent of a trip.
a fast car goes from 0 m per second to 40 meters per second in 2 seconds. what is the acceleration?
Answer:
20m per sec
Explanation:
40÷ 2 = 20 which is your acceleration per sec
Answer:
20 [tex]m/s^2[/tex]
Explanation:
[tex](40m/s)/2s = 20m/s^2[/tex]
A shunt device that remains connected to the meter movement and thereby eliminates contact resistance problems is the _______________ shunt.
Can anyone explain alpha decay?
Explain beta decay
Explanation:
Beta decayRadioactive decay
In nuclear physics, beta decay is a type of radioactive decay in which a beta particle is emitted from an atomic nucleus, transforming the original nuclide to an isobar of that nuclide
Answer:
In alpha decay, mass number of the nucleus decreases by 4 unit and atomic number is decreased by 2 unit. Alpha decay : ZAX→Z−2A−4Y+24He. When a parent nucleus emits an electron (beta particle) along with the daughter nucleus, then the nuclear reaction thus is called as beta decay.
Question 1 of 10
Thunderstorms require lots of moisture to form. What are two other
conditions that are required for thunderstorms to form?
A. High pressure
B. Rapidly changing winds
C. Quickly rising air
D D. Warm air
Answer:
warm air...
option "D"
hope it'll help you...
Answer:
D. Warm Air.............. is correct option.
write the equation that links distance, force and work done??
Answer:
[tex]{ \boxed{ \rm{workdone = force \times distance}}}[/tex]
How many electrons should be in an atom’s valence shell (with the exception of hydrogen and helium) to become stable? 2 4 6 8.
Answer:
8
Explanation:
octet rule: Atoms lose, gain, or share electrons in order to have a full valence shell of eight electrons. Hydrogen is an exception because it can hold a maximum of two electrons in its valence level.
Answer:
the answer is 8
Explanation:
got 100%
4
ergy transfer is taking place?
A man is trying to move his washing machine into
the back of a removal van. The washing machine has
a weight of 650 N and the floor of the removal van is
0.80 metres above the ground (Figure 8.9).
a
Answer:
zerihun beyene
Explanation:
state its advantageshow many kilojoules of heat must be removed to freez 35 g of water at 0c
Answer:
..
Answer
How many joules does it take to melt 35 g of ice at 0oC ?
Hint:There is a formula to calculate the energy required to melt some amount of ice and it is as follows.
q=n×ΔH
Here q = amount of heat
n = number moles of water
ΔH = change in enthalpy
Complete step-by-step answer:- In the question it is asked to calculate the number of joules required to melt 35 g of ice at 0oC .
- The data given in the question is 35 g of ice at 0oC.
- The formula to calculate the energy to melt the 35 gm of ice is as follows.
q=n×ΔH
Here q = amount of heat
n = number moles of water
ΔH = change in enthalpy
- First we have to calculate the number of moles of water from the given data.
- The number of moles of water for 35 g of ice is as follows.
number of moles for 35 g of water = 3518=1.94moles
- Means we have to calculate the energy required to melt 1.94 moles of the water.
- The enthalpy of fusion of water = 6.02 kj/mol.
- Substitute all the known values in the above formula to get the number of joules required.
q=n×ΔHq=1.94×6.02q=11.678kJ
- We got the answer in kilojoules. We have to convert the heat into joules.
11.678 kJ = 11,678 J
- Therefore the amount of heat required in joules to melt the ice at 0oC is 11,678 joules.
Note:We have to calculate the number of moles of water from the given data then only we will get the heat required and we also should know the value of enthalpy of fusion for ice. Without knowing these two
A person pushes a box. He applies a force of 400 newtons, and he pushes the box for adistance of 4 meters. After he stops pushing, the box slides forward another meter. How muchwork was done by the person?
Answer:
its however much he did before it slid another meter.
Explanation:
how much energy is stored in the capacitor when it is aa fully charged
Answer:
0.5*10uF * 16*16 =0.0128
Explanation:
I have no explanation just like my soul.
When using the right-hand rule to determine the direction of the magnetic force on a charge, which part of the hand points in the direction of the magnetic field?.
The part of the hand that points in the direction of the magnetic field is the fore-finger.
Fleming's right hand ruleFleming's right hand rule is used to determine the direction of induced current in a conductor moving in a magnetic field.
It states that when the thumb, middle finger and fore finger of the right hand are held at right-angles to each other, the fore finger represent the direction of the magnetic field, the thumb represents the direction of the force on the conductor, then the middle finger represents the direction of the induced current in the conductor.Thus, the fore-finger points in the direction of the magnetic field.
So, the part of the hand that points in the direction of the magnetic field is the fore-finger.
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The volume of a ball was measured at 500. 0 cm3, and its mass was measured to be 404. 2 g. What would be the most accurate calculation of density for the ball? Round to the nearest ten thousandths. G/cm3.
The density of the given ball is 0.808. Density is an intrinsic property of an object.
How to calculate density?The density of a ball can be calculated by diving its mass by its volume. It can written as,
[tex]\rho = \dfrac mV[/tex]
Where,
[tex]\rho[/tex] - density
[tex]m[/tex] - mass = 404.2 g
[tex]V[/tex] - volume = 500.0 cm³
Put the values in the formula,
[tex]\rho = \dfrac{404.2}{ 500.0}\\\\\rho = 0.8084 \rm \ g/m^3[/tex]
Therefore, the density of the given ball is 0.808.
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A wagon with an initial velocity of 2 m/s and a mass of 60 kg, gets a push with 150 joules of force. Apply your scientific knowledge and understanding of work-energy theorem to calculate the wagon’s final velocity.
Answer:
Given,
initial velocity (u) = 2m/s
Mass (m) = 60kg
work (w) = 150j
final velocity (v) = ?
first of all, we have to find it's force
we know that,
w = f.d
or, f = w/d
or, f = 150j/2m
◇ f = 75N
Again, we have to find a
we know that,
f = m.a
or, a = f/m
or, a = 75N/60kg
◇ a = 1.25m/s^2
Now,
v = u+a.t
or, v = 2+ 1.25×1
◇ v = 3.25m/s
A monkey is chained to a stake in the ground. The stake is 3.12 m from a vertical pole, and the chain is 4.24 m long. How high can the monkey climb up the pole
Answer:
The hypotenuse is 3.68
3.682 = 2.852 + x2
14.8669 = 8.1225 + x2
6.7444 = x2
2.59699827 ≈ x
The monkey can climb about 2.6 feet up the pole
Explanation:
United States citizens have many ways to participate in national life. The most common form of participation is?
Answer:
You would have to give better explanation on subject.
Explanation:
which one is correct ? i'll mark u brainlistt asapp
The formation of the solar system from a huge cloud of dust and gases is called the.
If the pressure on a movable piston of a closed container is doubled, what will happen?.
If the pressure on a movable piston of a closed container is doubled, the volume of gas will decrease.
What is boyle's law?
Boyle's law states that if the temperature of a gas sample is constant, the volume of the sample will vary inversely as the pressure.
This means an increase in pressure will lead to a decrease in volume, also a decrease in volume will lead to an increase in pressure.
Therefore, when the pressure on the piston is doubled, the gas moves downward in the piston until the pressure produced by the gas equals the pressure produced by the piston. At this point, the volume of the gas will be reduced.
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A car with a mass of 1. 2 × 103 kilograms starts from rest and attains a speed of 20 meters/second in 5 seconds. What net force acted on the car to cause that acceleration? A. 3. 0 × 102 newtons B. 6. 0 × 102 newtons C. 1. 2 × 103 newtons D. 4. 8 × 103 newtons E. 1. 2 × 104 newtons.
Answer:
The formula for force according to Newton's second law of motion is F=ma or force for an object to move is equal to mass times acceleration.
Acceleration or average acceleration defined as change in velocity per time.
F=ma
F=1.2x10³kg*(20m/s)(1/5s)=4.8x10³ Newtons
Explanation:
fthat's not the answer then i'm sorry
earth has a mass of 5,970,000,000,000,000,000,000,000 kg. How would scientists express this number in scientific notation.
Taking into account the definition of Scientific notation, the correct representation of 5,970,000,000,000,000,000,000,000 kg in scientific notation is 5.97×10²⁴ kg.
Scientific notationScientific notation is a quick way to represent a number using powers of base 10. This notation is used to be able to express very large or very small numbers very easily.
The numbers are written as a product:
a×10ⁿwhere:
a is a real number greater than or equal to 1 and less than 10, to which a decimal point is added after the first digit if it is a non-integer number.n = a whole number, which is called an exponent or an order of magnitude. Represents the number of times the point decimal is shifted. It is always an integer, positive if it is shifted to the left, negative if it is shifted to the right.Scientific notation of 5,970,000,000,000,000,000,000,000 kg.In this case, to write the number 5,970,000,000,000,000,000,000,000 kg in scientific notation, the following steps are performed:
The decimal point is moved to the left as many spaces until it reaches the right of the first digit. This number will be the value of a in the previous expression. Then a = 5.970,000,000,000,000,000,000,000 The base 10 is written with the exponent equal to the number of spaces that the decimal point moves. This is a positive number because the decimal point is shifted to the left, and it will have a value of n = 24.So, the correct representation of 5,970,000,000,000,000,000,000,000 kg in scientific notation is 5.97×10²⁴ kg.
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if an object with a velocity of 50m/s has the same momentum as that of a 10 kg Mass moving with a velocity of 20 m/s the mass of the object is
Answer:
4 kg
Explanation:
momentum = mass x velocity
10 x 20 = 200
200 / 50 = 4
What is lenz law?
What is galvanometer?
Answer:
Lenz's law, in electromagnetism, statement that an induced electric current flows in a direction such that the current opposes the change that induced it. This law was deduced in 1834 by the Russian physicist Heinrich Friedrich Emil Lenz (1804–65).
What is observed when a noble gas is heated and the emitted light shone through a prism?.
Given what we know, we can confirm that when a noble gas is heated and the emitted light is shone through a prism, we can observe the emission spectrum.
What is the emission spectrum?These can be described as lines of different colored lights. These lines will be the observed results after heating the gas and shining its light through a prism. This emission spectrum can provide important information regarding the chemical composition of its source.
Therefore, we can confirm that the emission spectrum, described as lines of varying colors, is what we observe when a noble gas is heated and the emitted light is shone through a prism.
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if magnesium has 13 neutrons, what is its mass for the isotope
Answer:
25 I'm pretty sure sorry if I'm wrong
What is NOT a benefit of being flexible? easier to do things looser muscles tight muscles less likely to get hurt
Answer: Looser muscle
Explanation: If your muscle are tight all the time it’s unhealthy and can cause cramps all the time rather than loose muscles that are relaxed
Answer: The correct answer to this is tight muscles.
Explanation:
I done the same quiz and the answer was tight muscles.
HELP ASAP !!
A +2.0 C and a +2.0 C charge exert 0.10 N of force on each other. How much would a +2.0 C and a +4.0 C charge exert, if they were the same distance apart?
This question involves the concept of Colomb's Law and electrostatic force.
The electrostatic force will be "0.2 N".
COLOMB'S LAW:According to Colomb's Law, every charge exerts an electrostatic force on the other charge, which is directly proportional to the product of the magnitudes of both the charges and inversely proportional to the square of the distance between them.
[tex]F=\frac{kq_1q_2}{r^2}[/tex]
where,
F = electrostatic force k = Colomb's constant = 9 x 10⁹ N.m²/C²q₁ = magnitude of first chargeq₂ = magnitude of second charger = distance between chargesIn case of +2 C charges:
q₁ = q₂ = 2 Cr = ?F = 0.1 NTherefore,
[tex]0.1\ N = \frac{(9\ x\ 10^9\ N.m^2/C^2)(2\ C)(2\ C)}{r^2}\\\\r^2=\frac{(9\ x\ 10^9\ N.m^2/C^2)(2\ C)(2\ C)}{0.1\ N}\\\\r^2=3.6\ x\ 10^{11}\ m^2[/tex]
Now, for the second case:
F = ?q₁ = 2 Cq₂ = 4 Cr² = 3.6 x 10¹¹ m²Therefore,
[tex]F=\frac{(9\ x\ 10^9\ N.m^2/C^2)(2\ C)(4\ C)}{3.6\ x\ 10^{11}\ m^2}[/tex]
F = 0.2 N
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