Answer: acceleration will slow down.
Explanation: Since mass is inversely proportional to acceleration, if you increase the mass at a given force the rate of acceleration slows.
Fatima is watching her pet cat, Winter, napping in the sun. Fatima is curious about the heart rate of Winter when she is napping, so she develops this scientific question: Does a cat’s heart rate change while it is napping
We have that for the question, Does a cat’s heart rate change while it is napping?
Cats heart rate do not increase while napping.
The range of heart beat of a cat is 140 and 220 bpm
From the Question we are asked
Does a cat’s heart rate change while it is napping.
The answer is NO
Cats heart rate do not increase while napping. Cat have a normal heart beat maximum of 220 beats per minute consistently.The range of heart beat of a cat is 140 and 220 bpm
Therefore
There is something with a cat with heart rate above this number.
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How does Bolsa describe his new client?
Answer:
loco
Explanation:
A car starts from rest and after 10 seconds its velocity is 20 m/s. Find the acceleration and the distance travelled by it.
Answer:
a=[tex]2ms^{-2}[/tex] S=100m
Explanation:
a=?vi=0m/s
vf=20m/s
t=10s
a=[tex]\frac{vf-vi}{t}[/tex]
a=[tex]\frac{20-0}{10}[/tex]
a=2m[tex]s^{-2}[/tex]
S=?S=vit+[tex]\frac{1}{2}[/tex]a[tex]t^{2}[/tex]
S=0+[tex]\frac{1}{2}[/tex]*2*[tex](10)^{2}[/tex]
S=100m
(b) On what factor does the mechanical advantage of a simple machine depend? (a) N/m B. Very short answer questions, 1. What is the principle of simple machine? 2. 3. The efficiency of simple machine is 75%. What does it mean? 4. S. What is lever? In how many classes is lever classified? Write the name of a simple machine used to change the direction of force. 6.the velocity ratio of a pulley system is 4.what does it mean? 0 Reliant Science - 9
Answer:
No.b answer
the ratio of the length of the lever arm where the force is applied divided by the length of the lever are that lifts the load.
No.1 answer
if there is no friction in a simple machine, work output and work input are found to be equal in the machine.
No.3 answer
machine that is 75% efficient means that 75% of the work input is obtained as the useful output and the remaining 25% has been lost in overcoming the friction.
No.4 Answer
A lever is a simple machine made of a rigid beam and a fulcrum. In 3 calss lever is classified.
Simple pulleys change the direction of the force used to lift an object over a distance.
ratio of distance travelled by effort to the distance travelled by load in the machine.
Hope this will help you alot
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Which unit is used to measure the mass of a computer?
Answer:
kilogram
Explanation:
A projectile is launched vertically with an initial velocity of 50 m/s. How long would it take to reach the top of the launch?
Answer:
Explanation:
Givens
vi = 50 m/s
vf = 0
a = - 9.81
t = ?
Formula
t = (vf - vi)/a
Solution
t = (0 - 50)/-9.81
t = 5.097
Notice that a is made into a minus. It does not mean subtract. It means that the direction of the projectile and gravity must go in opposite directions. You will find that direction is a critically important consideration in physics.
Answer:
It'd take it 5.10 seconds
Explanation:
At the top of the launch, it is maximum height, h
formular derivation :
At maximum height, final velocity, v is zero
From first newtons equation:
[tex]{ \sf{v = u + gt}}[/tex]
v is the final velocity
u is the initial velocity
g is acceleration due to gravity
t is the time taken
but v is zero:
[tex]0 = u + gt \\ gt = u \\ t = \frac{u}{g} [/tex]
since it is vertical motion, u = usin(theta), where angle is 90°
[tex]{ \boxed{t = \frac{u \sin( \theta) }{g} }}[/tex]
t is the time taken to reach the top of the launch:
substitute, taking g to be 9.8 m/s²
[tex]t = \frac{50 \times \sin(90 \degree) }{9.8} = \frac{50}{9.8} \\ \\ { \boxed{ \boxed{time = 5.10 \: seconds}}}[/tex]
A 2.72 A current flows through a wire for
9.88 s. How much charge flows past a point
in the wire in that time?
[tex]\\ \rm\longmapsto I=\dfrac{Q}{t}[/tex]
[tex]\\ \rm\longmapsto Q=It[/tex]
[tex]\\ \rm\longmapsto Q=2.72\times 9.88[/tex]
[tex]\\ \rm\longmapsto Q=26.87C[/tex]
The amount of charge that flows past a point in the wire during that time is approximately 26.8976 Coulombs.
Electric charge is quantized, meaning it exists in discrete amounts and is measured in coulombs (C). The elementary charge, represented by the symbol "e," is the charge of a single proton or electron, approximately equal to 1.602 x 10^-19 coulombs. Protons carry a positive charge, while electrons carry an equal but opposite negative charge.
When electric charges are stationary, they create an electric field around them. When charges are in motion, they produce a magnetic field in addition to the electric field, leading to electromagnetic effects.
Charge is a fundamental property of matter that determines its interaction with electric and magnetic fields and is crucial to understanding and explaining various electrical and electromagnetic phenomena in the natural world.
To calculate the amount of charge that flows past a point in the wire use the equation:
Q = I * t
Where:
Q is the charge (in Coulombs)
I is the current (in Amperes)
t is the time (in seconds)
Given:
Current (I) = 2.72 A
Time (t) = 9.88 s
Substitute these values into the equation to find the charge:
Q = I t
Q = 2.72 A * 9.88 s
Calculating the product:
Q = 26.8976 C
Therefore, the amount of charge that flows past a point in the wire during that time is approximately 26.8976 Coulombs.
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How does the field of science gain knowledge and understanding?
A basic question about how science gains knowledge.
Science gains knowledge using the scientific method.
The first thing you need to understand here is the scientific method, with all the steps and a little explanation to each one.
Ask a question or find some problem to solve: (what you want to understand? In what area do you want to find new knowledge?) Perform research: (There is some existing knowledge in that topic?) Establish your hypothesis: (This is what you can conclude with the things you know, or what you expect to find) Test your hypothesis by conducting an experiment: (Perform an experiment to test your hypothesis, this is the most important part.) Make an observation: (Observe the outcome of the experiment) Analyze the results and draw a conclusion: (study what the outcome means) Present the findings: (Present what you learned to the scientific community, in this way the science gains knowledge).If you want to learn more, you can read:
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Answer:
Through the testing of hypotheses.
According to the law of conservation of energy, which statement must be
true?
A. Energy that is transformed is neither destroyed nor created.
B. Energy can change only from nuclear to chemical.
C. There is only one form of energy.
D. The total energy in a system can only increase over time.
Answer:
i hope it will help you
THANK YOU
Explanation:
thank you
how do i get the correct answer for 0.429m to mm
the answer for 0.429m to mm is 429
Answer:
0.429m=429 mm
Explanation:
Since there are 1,000 millimeters per meter, you need to multiply by 1,000 to convert from meters to millimeters.
A baseball is thrown a distance of 20 meters. What is its
seconds to cover the distance?
speed if it takes 0.5
Answer:
I want to say 10 seconds but im not 1000% sure
Answer:
Average speed= distance traveled/ time taken.
Explanation:
You shouldn't need any formula, just use common sense. You dummy. It goes 20m 10h half a sec. DUH!!!
How many megabytes does a 30-gigabyte hard drive hold
Answer:
30,000
Explanation:
1 gig is 1000 megabytes
(c) What are the factors of work? Also write their relation with work.
Answer:
Explanation:
Appreciation for your work.Good relationships with colleagues.Good work-life balance.Good relationships with superiors.Company's financial stability.Learning and career development.Job security.Attractive fixed salary.Good relationships with colleagues. Good work-life balance. Good relationships with superiors. Company's financial stability.
1. The atomic number of an element is the same as the number of ______ that the element has.
Answer:
Explanation:
The total number of protons in the nucleus of an atom gives us the atomic number of that atom. It is represented with the letter ‘Z.’ All the atoms of a particular element have the same number of protons, and hence the same atomic number. Atoms of different elements have different atomic numbers.
A hydrogen atom has a diameter of about 12.7 nm, express this diameter in centimeters.
We have to convert 12.7nm to cm
[tex]\\ \sf\longmapsto 12.7nm[/tex]
[tex]\\ \sf\longmapsto 12.7\times 10^{-9}m[/tex]
[tex]\\ \sf\longmapsto 0.127\times 10^{-7}m[/tex]
[tex]\\ \sf\longmapsto 0.00000127\times 10^{-2}[/tex]
[tex]\\ \sf\longmapsto 0.0000013cm[/tex]
3. ¿Cuál es la distancia focal de un espejo CONVERo sabiendo que un objeto colocado
a 4 cm de él da una imagen virtual situata a 2 cm del espeso? ¿Cuál es el radio de
curvatura del espejo? Determina también las características de la imagen sie
objeto mide 5 cm
i dont know for real
The small bunny exerts a force of 15 Newtons as it hops a distance of 3 meters to pass the large rabbit. How much work did the small bunny do?
45 Joules
0.2 Joules
18 Joules
5 Joules
Answer:
W = F × d
W = 15 × 3
W = 45 Joules
help me please i dont understand
Answer:
0.58
Explanation:
Sinẞ = opposite ÷ hypotenuse
Sinẞ = 5 ÷ 8.6
Sinẞ = 0.5814
Sinẞ ≈ 0.58
Answer: 0.58
Explanation:
hope this helps
Fun Fact: Peanuts aren’t technically nuts
A sample of oxygen gas occupies a volume of 200 mL at a pressure of 720 torr. What volume will the gas occupy at a pressure of 800 torr if temperature is held constant
We have that the gas will occupy at a pressure of 800 torr if temperature is held constant a Volume of
[tex]V_2=0.18L[/tex]
From the Question we are told that
Initial Pressure [tex]P_1=720[/tex]
final Volume [tex]V_1=200mL[/tex]
Initial Pressure [tex]P_2=800[/tex]
final Volume [tex]V_2=?[/tex]
Generally the equation for Boyle's law is mathematically given as
[tex]P_1V_1= P_2V_2[/tex]
Therefore
[tex]V_2=\frac{ P_1V_1}{P_2}\\\\V_2=\frac{ 720*200}{800}\\\\V_2=180mL[/tex]
[tex]V_2=0.18L[/tex]
The gas will occupy at a pressure of 800 torr if temperature is held constant a Volume of
[tex]V_2=0.18L[/tex]
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what are 2 ways elastic energy affects us as humans
Answer:
The coil spring of a wind-up clock.
An archer's stretched bow.
Explanation:
calculate the frequency and time period of sound wave of 35 m wave length propagating at a speed of 3500m/s
Answer:
Frequency = 100 Hz
Time period = 0.01 sec
Explanation:
f= 3500/35 = 100
T = 1/f = .01
The digital payment system that enables sellers to accept payment at trade
shows, food trucks, concerts, or farm stalls is called a:
A. biometric authentication system.
O B. QR code.
O c. payment protection device.
D. mobile point-of-sale device.
SUBMIT
[tex] \large \mathfrak{Answer : }[/tex]
The Correct option is D. mobile point-of- sale device.
The digital payment system that enables sellers to accept payment at trade shows, food trucks, concerts, or farm stalls is called a mobile point-of-sale device. Thus, the correct option for this question is D.
What are the advantages of a digital payment system?The advantages of a digital payment system are as follows:
This type of payment system is cost and time-saving.It increases sales by reducing transaction costs.It is helpful in generating the invoice at any time.This mode of payment is paperless.The mobile point-of-sale device (mPOS) is cost-effective. It involves the breaking down of monthly maintenance and payments on the basis of a cloud-based subscription. It authorizes the sellers to accept the payment at trade. It is one of the fastest modes of payment.
Therefore, a mobile point-of-sale device is a digital payment system that enables sellers to accept payment at trade shows, food trucks, concerts, or farm stalls. Thus, the correct option for this question is D.
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what is known physical quantity
Answer:
those quantity which are measured and expressed on mathematical process is called physical quantity
ecent communication with the inhabitants of Neptune has revealed that they have a Celsius-type temperature scale, but based on the melting point (0oN) and boiling point (100oN) of their most common substance, hydrogen. Further communications have revealed that the Neptunians know about perfect gas behavior and they find that, in the limit of zero pressure, the value of pV is 28 dm3atm at 0oN and 40 dm3atm at 100oN. What is the value of the absolute zero of temperature on their temperature scale
The absolute zero temperature is the smallest thermodynamic thermal limit, which is considered as a zero kelvin when the enthalpy, as well as the entropy of a cooled ideal gas, are of minimal value.
It is expressed by using the formula:
[tex]\mathbf{T_{abs} = T_N + k}[/tex]
where;
[tex]\mathbf{T_{abs } = absoulte \ temperature}[/tex]
[tex]\mathbf{T_N = temperature \ at \Neptune \ Scale}[/tex]
k = factor to convert temperature from absolute scale to Neptunian scale
N:B: An absolute temperature = zero (0) kelvin
From the information given, Using Ideal gas since it is used in Neptune:
PV = nRT
where;
P = pressureV = volumen = no of molesR = rate(constant)T = temperatureFrom the question, provided that the gas is the same and no new mass is added;
Then, we can equate the moles of gas in the given conditions as;
[tex]\mathbf{\dfrac{P_1V_1}{T_1}=\dfrac{P_2V_2}{T_2}....\dfrac{P_nV_n}{T_n}}[/tex]
Using:
[tex]\mathbf{\dfrac{P_1V_1}{T_1}=\dfrac{P_2V_2}{T_2}}[/tex]
where the value of;
P₁V₁ = 28 dm³ atm
T₁ = 0⁰ N
P₂V₂ = 40dm³ atm
T₂ = 100⁰ N
∴
[tex]\mathbf{\dfrac{28}{(0+K)}=\dfrac{40}{(K+100)}}[/tex]
By cross multiply;
28(K+100) = 40(0+K)
28K + 2800 = 0 + 40K
40K - 28K = 2800
12 K = 2800
K = 2800/12
K = 233.33° N
Recall that:
[tex]\mathbf{T_{abs} = T_N + k}[/tex]
[tex]\mathbf{0= T_N+ 233.33 ^0 N}[/tex]
[tex]\mathbf{ T_N= - 233.33 ^0 N}[/tex]
Therefore, we can conclude that the value of the absolute zero of temperature on their temperature scale is -233.33° N
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what is the relationship between the variables on this graph? The temperature does not have an effect on flow time. As the temperature increases, the flow time increases. As the temperature increases, the flow time decreases.
Answer: As the temperature increases, the flow time increases.
Explanation: i took the test
The relationship between the variables on this graph is that As the temperature increases, the flow time increases, therefore the correct answer is option B.
What is the kelvin scale of temperature?It is a scale of temperature used to measure the temperature, the kelvin scale of temperature is also known as the absolute scale of temperature.
The Standard International unit of thermodynamic temperature is the kelvin, often known less frequently as the degree Kelvin. The formal definition of one kelvin is 1/273.16 of the thermodynamic temperature of pure water's triple point.
As shown in the graph as the temperature increase across the X axis the flow time is increasing as well, these two variables are directly proportional to each other.
Thus, The graph shows a link between the variables, showing that when the temperature rises, flow time also rises, hence option B is the proper response.
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What is the car’s average velocity (slope) between “O” and “A”? (y2-y1 / x2-x1) = slope
(1,24) (0,0)
Please find the attached photograph for your answer. Hope it helps! Please do comment
The car’s average velocity is mathematically given as
V=4m/s
What is average velocity?Average velocity is simply the mean rate of change of position of a car over a period of different times and this can be used to attain velocity of a car that has been in different velocity states
What is the car’s average velocity?Generally, the equation for the Velocity is mathematically given as
V=(AI/OI)
Therefore
V=24/1
V=4m/s
In conclusion, the car’s average velocity
V=4m/s
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What do kinematic equations do?
Answer:
The kinematics equations describe the motion of an object undergoing constant acceleration
Explanation:
The kinematics equations describe the motion of an object undergoing constant acceleration. These equations relate the variables of time, position, velocity and acceleration of a moving object, allowing any of these variables to be solved for if the others are known
Precision is how close a series of measurements are to ______
Answer:
Accuracy is how close a measured value is to an accepted value. Precision is how close measurements are to one another. To make measurements, you have to evaluate both the accuracy and the precision to get a correct value.
An apple weighing 1 N falls through a distance of 1m. How much work is done
on the apple by the force of gravity?
Answer:
W = F × d
W = 1 × 1
W = 1 Joule
step by step explanation
An apple is having a force of 1 N and it travels to a distance of 1 m then the work done on the apple by the force of gravity will be equal to 1 J.
What is Work?Work is a physics term used to describe the transfer of energy that occurs when an object changes above a distance because of an external force, at least some of which is given in the vector of the dislocation. The element of the strong acting all along the path multiplied by the length of the path can be used to calculate work if the force is constant.
Mathematically, this idea is expressed as W = fd, where W is the effort and f is the force multiplied by d, the distance. Work is completed whenever the pressure is applied at an angle with regard to displacement.
As per the given information in the question,
Force, f = 1 N
Distance, d = 1 m
Then, the work done will be,
W = fd
W = 1 × 1
W = 1 J.
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motorcycle starting from rest cover 200 metre distance in 6 second calculate final velocity and acceleration of the motorcycle
