Answer:
F = 98 N
Explanation:
Data:
Mass (m) = 14 kgAcceleration (a) = 7 m/s²Force (F) = ?Use formula:
F = m * aReplace:
F = 14 kg * 7 m/s²Multiply both operations, with the units:
F = 98 NWhat is the amount of the force?
The amount of the force is 98 Newtons.
4. Can an object's displacement be negative? What does the sign indicate about the
displacement?
Answer:
1. Displacement can be positive OR negative. The sign implies the direction of the displacement. 2. In one dimension the direction is indicated by the sign: negative if to the left and positive if to the right.
Explanation:
are clocks permanently stuck to walls?
Answer:
It depends
Explanation:
what is this question
Answer:
No...
Explanation:
I think this may be a trick question... so from my reasonable logic, I'm gonna say no because more often then not they are attached to the wall with nails/screws. Or they are hanging.
So they could come off. Also if someone was desperate, they could always grab a chainsaw and force it off of the wall. Not a great idea though, then the wall would be broken!! Most likely the clock too!
calculate the heat of television if:
light-119J
Sound-1J
electricity-200J
heat-?
quickly pls
Answer:
002 bc eause iy is
What is the type of friction force if the object appears just about to start motion?why?
Sliding friction is friction that acts on objects when they are sliding over a surface. Sliding friction is weaker than static friction. That's why it's easier to slide a piece of furniture over the floor after you start it moving than it is to get it moving in the first place.
a truck starts from rest and accelerates for 25 seconds to reach a velocity of 60m/s . calculate the rate of acceleration for the truck
Answer:
2.4m/s²
Explanation:
Given parameters:
Initial velocity = 0m/s
Time 25s
Final velocity = 60m/s
Unknown:
Acceleration = ?
Solution:
Acceleration is the rate of change of displacement
Acceleration = [tex]\frac{Final velocity - Initial velocity}{time}[/tex]
Acceleration = [tex]\frac{60 - 0}{25}[/tex] = 2.4m/s³
Cowbirds follow groups of cows, or other grazing animals, eating the insects kicked up by the walking animals. The herbivores are not bothered by the cowbirds. This relationship is an example of:
a
Competition
b
Commensalism
c
Predation
d
Mutualism
Answer:
d: mutualism
Explanation:
I'm guessing that means they're on mutual grounds so they don't mind sharing?
the gravitational force between the sun and earth is larger than sun and the moon. what do you think the reason for this is?
Answer: The greater an object's mass, the more gravitational force it exerts.
Explanation: So, to begin answering your question, Earth has a greater gravitational pull than the moon simply because the Earth is more massive. Sorry if I get this wrong. I am in 5th grade! ♥
The gravitational attraction between the Sun and Earth is stronger than the attraction between the Sun and the Moon, principally because of the Sun's greater mass and greater distance from Earth.
An object's mass affects how much gravitational pull it exerts. Both the Earth and the Moon are much less massive than the Sun. Approximately 330,000 times more massive than the Earth, and roughly 27 million times more massive than the Moon, is the Sun. Because of the Sun's greater mass, its gravitational pull is thus much stronger.
The strength of the gravitational force between two objects is greatly influenced by their distance from one another. The Sun and Earth are separated from one another by a far smaller distance than the Sun and Moon. The Sun is located roughly 150 million kilometers from Earth, while the Moon is located roughly 384,400 kilometers from the Sun on average. The inverse square law asserts that the gravitational force decreases with increasing distance, and that it is only one-fourth as strong when two objects are twice as far apart.
Hence, the gravitational force between the sun and earth is larger than the sun and the moon due the mass of the sun and earth is greater than the moon and sun. The distance between the sun and the earth is comparatively smaller than the distance between the sun and the moon.
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Which measurement can be made using a micrometer screw gauge?
The turning effect of a spanner
The wavelength of microwaves
The diameter of a wire
The air pressure of a tyre
Answer:
C. The diameter of a wire
Explanation:
A micrometer screw gauge is a device used for the measurement of small dimensions which may not be measured accurately by the use of a vernier caliper, e.g diameter of a thin wire. it has a high degree of accuracy.
From the given option in the question, the measurement that can be made using a micrometer screw gauge is the diameter of a wire
The measurement that should be used via using the micrometer screw gauge is option C. The diameter of a wire
What is a micrometer screw gauge?It is the device that should be used for measuring the small dimension that should not be measured in an accurate way via the use of an vernier caliper. Also, it contains the high accuracy degree. So the measurement should not be done by turning effect, microwaves wavelength, tyre air pressure
Therefore, the option c is correct.
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A freight train has a mass of 270, 700 kg and has an acceleration of 40 m/s2. How much force is acting on the train? Formula:
Answer:
1.08 x 10⁷N
Explanation:
Given parameters:
Mass of freight train = 270700kg
Acceleration = 40m/s²
Unknown:
Force acting on the train = ?
Solution:
From Newton's second law of motion, we know that:
Force = mass x acceleration
So;
Force = 270700 x 40 = 1.08 x 10⁷N
A bicyclist accelerates from a stop to a speed of 12m/s in 3 seconds.what is her acceleration
Answer:
4m/s2
Explanation:
acceleration=v-u/t...v=12m/s,u=0m/s,t=3sec
a=12-0/3
=4m/s2
Can anyone help me with this? I really need the help
for each of them you need to type how they make you feel when you like need to make decision
Explanation:
Why do we see Moon phases?
Answer:
The moon its self does not generate life.
Explanation:
Moon phases are determined by the relative positions of the Moon, Earth, and Sun. Instead, the Moon's phase depends only on its position relative to Earth and the Sun. The Moon doesn't make its own light, it just reflects the Sun's light as all the planets do. The Sun always illuminates one half of the Moon.
{ hope this helps T-T }
Based on the ionic notation shown here, what has happened to this ion.
Be2+ Select the 2 correct answers.
*
Atom has become an anion.
Atom has become a cation.
Atom has lost 2 electrons.
Atom has gained 2 electrons.
Answer:
Atom has become a cation.
Atom has lost 2 electrons.
Explanation:
Based on the ionic notation of the element or ion given, we can clearly state that the atom has become a cation and it has lost two electrons.
A cation is an atom that has lost electrons to become positively charged.
In a neutral atom, the number of protons and electrons are the same.
Protons are the positively charged particles within an atom.
Electrons are the negatively charged particles.
When an atom loses electrons, it becomes positively charged because the number of electrons is now more.
Positively charged atoms are called cations.
For each combination, record the total force, total mass, and acceleration. On the last column, multiply the mass (m) and acceleration (a).
Hello. You did not present the combinations the question refers to, which makes it impossible for this question to be answered accurately. However, I will try to help you in the best possible way.
To present the total force you must use the following formula: Mass x Acceleration.
To calculate the total mass, you must use the formula: Force / acceleration.
To calculate the acceleration you must use the formula: Force / mass.
Because the electrons in a molecule of hydrogen fluoride (HF) are more strongly pulled toward the fluorine atom, the molecule is nonpolar.
Please select the best answer from the choices provided
T
F
Answer:
false
Explanation:
this makes the molecule very polar
Can music exist without the elements?
Answer:no
Explanation:
A bowling ball with a mass of 9 kg is moving at a speed of 4 m/s. What is its
kinetic energy?
O A. 144 J
O B. 72J
O C. 18J
O D. 36 J
Help please!!
Which definition describes mass
Answer:
Mass is a measure of the amount of matter in an object. Mass is usually measured in grams (g) or kilograms (kg). Mass measures the quantity of matter regardless of both its location in the universe and the gravitational force applied to it. Your mass on the earth and the moon are identical.
Explanation:
In the answer.
21
WILL MARK BRAINIEST
There is a 56 g sample of Carbon-12. After 2 half-lives, how much of the Carbon-12 sample is
left? *
(3 Points)
12
14
28
7
Answer:
each half life you lose half the amount so the first one gets you to 28g and the 2nd half life gets you to 14gm
Explanation:
A right triangle has sides measuring 5 and 12 inches. If the two vectors have a magnitude of 5 and 12 and are at right angles to each other, then what is their resultant? Use the Pythagorean theorem to calculate the resultant.
Answer:
[tex]x=13[/tex]
Explanation:
From the question we are told that
Magnitude 1 [tex]M_1=5[/tex]
Magnitude 1 [tex]M_2=12[/tex]
Generally the Pythagoras equation for the magnitudes is mathematically given as
[tex]\sqrt{x^2}=\sqrt{M_1^2 +M_2^2}[/tex]
[tex]\sqrt{x^2}=\sqrt{5^2 +12^2}[/tex]
[tex]x=13[/tex]
Therefore resultant magnitude is
[tex]x=13[/tex]
The following is a partial chemical equation:
? → CO2 + 2H20
What can you infer about the reactants in this reaction?
A. The reactants include 2 carbon dioxide molecules and 1 water
molecule.
B. The reactants include 1 carbon dioxide molecule and 2 water
molecules.
O C. The reactants include 1 carbon atom, 2 oxygen atoms, and 2 water
molecules.
D. The reactants include 1 carbon atom, 4 oxygen atoms, and 4
hydrogen atoms.
Answer:
Option D
Explanation:
A chemical reaction, in general, has two sides. A reactant side, and a a product side.
The products of a chemical reaction doesn't necessarily have the compounds of the reactants, in fact, it usually begins with different compounds to form another compound. This is actually what makes sense of a chemical reaction.
But, a chemical reaction needs to be balanced, which means that no matter what compound or element we have in the reactants, we should have the same number of atoms and element on each side of the reaction.
Now, according to the given chemical reaction, the products of this reaction are CO₂ and H₂O. You can also see that the water molecule has a number 2, behind the compound. This number represents, chemically speaking, number of moles of the compound, but it also tell us another information and its the fact that this number multiply the number of atoms of the compound. So, if we have 2H₂O, then we actually have 2 atoms of oxygen, and 4 atoms of hydrogen.
In the case of CO₂, we only have 1 atom of carbon and 2 atoms of oxygen. The information we can get from this, and according to the above explanation, we should have in the reactants, one or more compounds that have in its inner structure, Carbon, oxigen and hydrogen; it doesn't necessarily mean that it should be one compound at once, it could be 2 or more compounds, but these elements have to be in there.
How many atoms of each element? We said it before, a chemical reaction needs to be balanced, so if we have in the products, 2 atoms of Carbon, 4 atoms of hydrogen and 4 atoms of oxygen (2 from the CO₂ and 2 from the water), then in the reactants, we need to have 4 atoms of hydrogen and oxygen, and 1 atom of Carbon at least.
The correct option should be D.
Hope this helps
49. A vertically hung 0.50-meter- long spring is stretched from its equilibrium position to a length of 1.00 meter by a weight attached to the spring. If 15 joules of elastic potential energy are stored in the spring , what is the value of the spring constant?
Answer:
[tex]K=120[/tex]
Explanation:
From the question we are told that
Length of spring [tex]l_1=0.5m[/tex]
Length of stretched [tex]l_s=1m[/tex]
Potential energy of spring [tex]E=15J[/tex]
Generally equation for energy stored is mathematically given as
[tex]U=1/2K \triangle x^2[/tex]
[tex]K=\frac{2U}{\triangle x^2}[/tex]
[tex]K=\frac{2*15}{ 0.5^2}[/tex]
Therefore value of the spring constant in N/m? is given as
[tex]K=120[/tex]
The value of the spring constant is 120 N/m.
Spring constant
The spring constant of the spring is calculated by applying the principle of conservation of energy as follows;
[tex]\frac{1}{2} k \Delta x = U[/tex]
Where;
K is the spring constantΔx is the extensionU is the elastic energyThe value of the spring constant is calculated as follows;
[tex]k = \frac{2U}{\Delta x} \\\\k = \frac{2\times 15}{0.5^2}\\\\k = 120 \ N/m[/tex]
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Which of the following bonds strength ranks in the correct order?
A. S-S < K-K < K-S
B. Mg-Mg < O-O < Mg-O
C. H-H < Ca-H < Ca-Ca
D. Na-Na < Na-Br < Br-Br
Answer:
the answer is A
Explanation:
The answer is A
The Choice in which the bond Strength ranks in the correct order is Choice A; S-S < K-K < K-S
According to the question;
We are required to determine in which choice Bond strength ranks in the correct order.The bond strength of a bond increases with increasing polarity of the bond.
Evidently, From the options above; In Choice A;
The polarity of S-S < K-K < K-S
As such, the bond strength which ranks in the correct order is Choice A: S-S < K-K < K-S
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A rock falls off a cliff with an acceleration of -9.8 m/s^2 and hits the ground 5 s later . How high is the diff?
What is the unit of measure for the rate at which electricity flows?
That's the Ampere.
1 Ampere = 1 Coulomb of charge per second.
The strength of an electrical field decreases as you move farther from the source.
True or False
Which of the following is an example of an immiscible liquid?
1. oil and water
2. water and juice
3. sugar and water
4.water and food coloring
PLEASE ANSWER FAST AND I WILL CHOOSE AS BRAINLIEST.
35 POINTS!!!!
Answer:
the answer is 1, oil and water
Answer:
It is oil and water i took the quiz and got it correct !
Hope this helps you! :D
plz help me
I have to get it done today
can someone help me with these two 2 question 3 and 4 please
A car is traveling in a race. The car went from the initial velocity of 35 m/s to the final velocity of 65 m/s in 5 seconds. What is the acceleration? 0-13 m/s2 0-6 m/s2 0.6 m/s2 O 13 m/s2
Answer:
6m/s²
Explanation:
Given parameters:
Initial velocity = 35m/s
Final velocity = 65m/s
Time taken = 5s
Unknown:
Acceleration = ?
Solution:
Acceleration is the rate of change of velocity with time taken;
Acceleration = [tex]\frac{Final velocity - Initial velocity }{time}[/tex]
So;
Acceleration = [tex]\frac{65 - 35}{5}[/tex] = 6m/s²