Given what we know, we can confirm that if the moon is at the first quarter, and her answer is to be given at full moon, the Romanian count will have to wait approximately 22 days.
How do we know that the full moon is 22 days away?The lunar cycle is how long the moon takes to orbit the earth. This is approximately 27 days, however, the lunar phases take approximately 29.5 days to complete. Since the first quarter moon phase represents the moon at 25% through its cycle, we can conclude that the remaining 75% that the count will have to wait corresponds to 22 days until the full moon.
Therefore, we can confirm that if the moon is at the first quarter, and her answer is to be given at full moon, the Romanian count will have to wait approximately 22 days.
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I need to know the solution and the formula.
Statement:
A non-deformed spring is 15 cm long. When a 2.0 N force is applied to it, its length becomes 19 cm.
To find out:
The spring constant of the spring.
Solution:
Force (F) = 2 NExtension of the spring (x) = (19 - 15) cm= 4 cm= 0.04 m [since we have to find the answer in N/m]Let the spring constant of the spring be k.We know, the formula of spring force, i.e.,F = kxPutting the values in the above formula, we get2 N = k × 0.04 mor, k = 2 N ÷ 0.04 mor, k = 50 N/mAnswer:
The spring constant of this spring is 50 N/m.
Hope you could understand.
If you have any query, feel free to ask.
ning
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
If i double the distance between two objects, what happens to their gravitational force?.
Answer:
When the distance between the two objects is halved, the gravitational force becomes four times.
Explanation:
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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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:
which one is correct ? i'll mark u brainlistt asapp
a car accelerates from rest (zero speed) up to a speed of 30 m/s in 12 seconds. calculate the acceleration.
Answer:
v=u+at
30=0+a×12
30=12a
a=[tex]\frac{30}{12}[/tex]
a=2.5ms⁻²
Answer:
2.5 m/s^2
Explanation:
There is this thing in Physics called the BIG 4 equations that help us determine one or more of the missing variables. In this case, we know the initial velocity, final velocity, and time. We're asked to find the acceleration.
This equation has all the criteria to find acceleration:
Vf = at + Vi ---> Final Velocity is equal to acceleration times time plus initial velocity
Plugging in the values and using algebra, we can find the acceleration.
30 = 12a + 0
a = 2.5
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%
A shunt device that remains connected to the meter movement and thereby eliminates contact resistance problems is the _______________ shunt.
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.
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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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.
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
Which type of energy is the energy of motion (or movement)?
Mechanical
Chemical
Electrical
Radiant
Answer:
Kinetic energy
Kinetic energy is the motion of waves, electrons, atoms, molecules, substances, and objects.
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.
A concrete slab of mass 400 kg accelerates down a concrete slope inclined at 35°. The kinetic between the slab and slope is 0.60. Determine the acceleration of the block.
I got you
Explanation:
normal force = 400 g cos 35
friction force up slope = .6 (400 g) cos 35
weight component down slope = 400 g sin 35
400 a = 400 g sin 35 - .6 (400 g cos 35)
a = g (sin 35 - .6 cos 35) = .082 g
I hope this helps you
The acceleration of the block is 0.082g.
What is force?The definition of force in physics is: The push or pull on a massed object changes its velocity. An external force is an agent that has the power to alter the resting or moving condition of a body. It has a direction and a magnitude.
Given that:
Mass of the slab: m = 400 kg.
Angle of inclination: θ = 35°.
Coefficient of kinetic friction: μ = 0.60
Hence, the normal force = 400 g cos 35° N.
The friction force acting on the slab= 0.6× (400 g) ×cos 35° N.
The component of weight in the direction of motion= 400 g sin 35° N.
Let the acceleration of the slab = a.
Now from Newton's 2nd law of motion:
Σ F = ma
400 g sin 35° - 0.6 (400 g cos 35°) = 400 a
a = g (sin 35 - .6 cos 35)
= 0.082 g
Hence, the acceleration of the block is 0.082g.
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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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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
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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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.
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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1.Which one of the following represents the force of gravity?
A.The attraction of the Earth to the Sun.
B.Steve slapping the table
C.Victoria ice skating
D.A basketball rolling across the ground
2.The force that works against motion and tries to slow objects down is called
A.a push or pull
B.friction
C.mass
D.gravity
3.Something that makes objects start moving, stop moving, slow down or change direction.
A.a push or pull
B.friction
C.mass
D.gravity
4.Which of the following surfaces has the LEAST amount of friction?
A.a gravel driveway
B.a dirt road
C.a road covered with ice
D.a road covered with spilled sand
5.The force that pulls objects toward the center of the Earth is called.
A.a push or pull
B.friction
C.mass
D.gravity
please help ang bobo ko
Answer:
For number 1 = A
For number 2 = B
For number 3 = A
For number 4 = C
For number 5 = D
A ball is tossed upwards into the air with an initial upwards velocity of 3.0m/s. What is the ball's velocity when it returns to the height from which it was tossed?
Neglate air resistance.
So acceleration is unchangedAs acceleration is remaining constant so at the top the velocity is 0.But at the end the velocity again come to 3m/s.how 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 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]
The formation of the solar system from a huge cloud of dust and gases is called the.
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 are the consequences of being exposed to nuclear waste
Answer:
it could cause skin burns and acute radiation syndrome (“radiation sickness"). It can also result in long-term health effects such as cancer and cardiovascular disease*
*Cardiovascular disease affects the heart or blood vessels. It's usually associated with a build-up of fatty deposits inside the arteries and an increased risk of blood clots.
Help please!!!
Do you think we always see the same side of the Moon?
Answer:
yess
Explanation:
"The Moon orbits Earth once every 27.3 days and spins on its axis once every 27.3 days. This means that although the Moon is rotating, it always keeps one face toward us. Known as “synchronous rotation,” this is why we only ever see the Moon's nearside from Earth."
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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