Answer:
When a capacitor is fully charged, no current flows in the circuit. This is because the potential difference across the capacitor is equal to the voltage source. (i.e), the charging current drops to zero, such that capacitor voltage = source voltage.
Explanation:
Hope this helps
How much force is needed to accelerate a dirt bike 15 m/s2 if the bike and rider has a mass of 65 kg?
Answer:
975 N
Explanation:
Force = acceleration • mass
Force = 15 m/s/s • 65kg
Force = 975 N
1) A rock is dropped from a cliff with a height of 200 m. With what velocity will the rock hit the ground
could anyone help explain
A rock is dropped from a 200 m high cliff. How long does it take to fall (a) the first 100 m and (b) the last 50 m?
The basic equation you want is:
s=at22
Solving for t:
t=2sa−−−√
We’ll assume a=9.8 , so 2a−−√=14.9−−−√≈0.4518
So, for (a)s=100 , so t=0.4518100−−−√=4.518
The total time is 0.4518200−−−√≈6.389
The time to fall 150 m is 0.4518150−−−√≈5.533
So the time to fall the last 50 m is 6.389 - 5.533 = 0.856 seconds
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Common places Soil pollution occur?
Answer:
industrial sites, landfills and junkyards
Explanation:
Lot of toxic waste are generated here
Two cars are involved in a crash (no one was hurt in the accident). If
the total momentum is 4120 kg. M/s after the collision, what is the
total momentum before the collision?
A. 0 kg • m/s
B. 8240 kg • m/s
C. 2060 kg • m/s
D. 4120 kg • m/s
The work done when raising an object must result in an increase in the object's.
Answer:weight
Explanation: weight + mass = acceleration
Plastic soda bottles are hooked up to a launcher. The launcher uses the water pressure to propel the rocket upward. What combination yields greatest height? A) A full 2-liter bottle B) A full 1-liter bottle. C) A three-quarter full 1-liter bottle D) A three-quarter full 2-liter bottle.
Answer:
The plastic soda bottles should be
D) A three-quarter full 2-liter bottleThe bottle with the greater volume will create more pressure but that pressure is delivered through the gas that is in the space in the bottle that is why the bottle should not be completely full.
Explanation:
Answer:
D
Explanation:
I took the test.
Give ten (10) words related to health on the grid. Write your answer on
a separate sheet.
Answer:
Answer
Explanation:
Answer:
1. Fitness 6. Health
2. Medicine 7. Diet
3. Diseases 8. Treatment
4. Exercises 9. Activities
5. Nutrition 10. Workouts
Calculate the weight of a book if it has a mass of 0. 6kg
Answer:
a) given that mass=0.6kg,distance of stretching from equilibrium position x=0.9m from new ton's second law,F=ma where a is acceleration of the body.Therefore,force on the spring -mass syste
Explanation:
hope it helps
Liquid water cannot exist for very long on the surface of mars today because.
Answer:
mars is to hot
Explanation:
How much force is needed to stretch a spring 1. 2 m if the spring constant is 8. 5 N/m? 7. 1 N 7. 3 N 9. 7 N 10. 2 N.
The amount of force required to stretch or compress the spring is known as the spring force. Its unit is Newton(N). Force is needed to stretch spring is 10.2 N.
What is spring force?The force required to extend or compress a spring by some distance scales linearly with respect to that distance is known as the spring force. Its formula is
F = kx
The given data in the problem is;
F is the spring force =?
K is the spring constant= 8.5 N/m
x is the length by which spring got stretched = 1.2m
[tex]\rm F_S=Kx \\\\ \rm F_S=8.5 \times 1.2 \\\\ \rm F_S=10.2 N[/tex]
Hence the force is needed to stretch the spring is 10.2 N.
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A marketing executive is investigating whether this year’s advertising campaign has resulted in greater mean sales compared with last year’s mean sales. The executive collects a random sample of 100 customer orders from a large population of orders and calculates the sample mean and sample standard deviation.
We make use of a one-sample t-test for a population mean.
One-sample t-test for a population mean
Option B
Sample mean and Sample standard deviationA Sample Standard Deviation is the root-mean square of the data minus the sample mean,
The sample mean is is the mean of the randomly selected sample
Therefore, For a data or sample where we have no information on population standard deviation and here only one sample group is compared, we make use of a one-sample t-test for a population mean
A one-sample t-test for a population mean
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which practice would most likely deplete a nonrenewable natural resource
Answer:
1)harvesting trees on a tree farm
2)burning coal to generate electricity in a power plant
3)restricting water usage during a period of water shortage
4)building a dam and a power plant to use water to generate electricity
A practice would most likely deplete a nonrenewable natural resource is burning coal to generate electricity in a power plant.
Explanation:
hope it helps
Harry is reading an online summary of the law of reflection. The site states that after light hits a mirror, the angle of reflection is the angle between the reflected ray and the normal, which is the surface of the mirror. Which statement corrects an error on the site? The normal is a line perpendicular to the surface of the mirror. The normal is a line perpendicular to the incoming ray. The angle of reflection is the angle between the incoming ray and the normal. The angle of reflection is the angle between the reflected ray and the incoming ray.
'The normal is a line perpendicular to the surface of the mirror'.This is the correct statement that corrects an error on the site.
What is the law of reflection?The law of reflection specifies that upon reflection from a downy surface, the slope of the reflected ray is similar to the slope of the incident ray.
The reflected ray is consistently in the plane determined by the incident ray and perpendicular to the surface at the point of reference of the incident ray.
When the light rays descend on the smooth surface, the angle of reflection is similar to the angle of incidence, also the incident ray, the reflected ray, and the normal to the surface all lie in a similar plane.
Hence 'The normal is a line perpendicular to the surface of the mirror'.This is the correct statement that corrects an error on the site
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Determine the resultant moment of the forces acting about the x, y, and z axes. Suppose that f1 = 200 n, f2 = 60 n, f3 = 115 n, and f4 = 300 n. (figure 1).
Based on the forces acting on the axes, the resultant moments will be (345, 400, 600 N·m)
What would be resultant moment about x-axis?= F₃ x 3
= -115 x 3
= -345 N·m
What would be resultant moment about y-axis?= F₁ x 2
= -200 x 2
= -400 N·m
What would be the resultant moment about z-axis?= F₄ x 2
= -300 x 2
= - 600 N·m
In conclusion, the resultant moment about x, y, and z axes is (345, 400, 600 N·m)
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What would land with more force, a feather moving at a certain acceleration, or a football moving with the same acceleration?
Answer:
the ball ofc
Explanation:
the ball have a greater mass then the feather and it have the same speed as the feather
In the context of studying major bodies of our solar system, what category of object does our moon best fit?.
The simplest, obvious category is " Satellites " .
But there's a lot of good reason to call it "Component of Binary Planet" .
As a fraction of the size and mass of its planet, our moon is the largest in the solar system.
Several writers have pointed out that an alien astronomer studying our solar system might describe the 3rd body from the Sun as a "Binary planet".
soapy water between surfaces
A. increases friction.
B. produces heat
C. reduces friction.
D. speeds up wearing out
Answer:
C. reduces friction
Explanation:
Soapy water between surfaces reduces friction.
A metal of mass 25g and dropped into a calorimeter 200g of water initially at 20°C. The final temperature is 22°C. Compute the specific heat of the metal if the water equivalent of calorimeter is 10g.
#Help Me!!
Key words
m=massT=temperaturec=Specific heat capacity[tex]\\ \rm\hookrightarrow Q_{initial}=Q_{Final}[/tex]
[tex]\\ \rm\hookrightarrow m1c1\Delta T=m2c2\Delta T[/tex]
Clear ou ∆T[tex]\\ \rm\hookrightarrow 25c1=(200+10)(1)[/tex]
[tex]\\ \rm\hookrightarrow 25c1=210[/tex]
[tex]\\ \rm\hookrightarrow C1=210/25[/tex]
[tex]\\ \rm\hookrightarrow C1=8.4cal/g°C[/tex]
The correct answer is 8.4 J⋅kg−1⋅K−1
Explanation :
The mass of the metal and water are given.The initial temperature and final temperature are given.We need to calculate the Specific heat of metal .
We know that
Qi = Qf
Therefore ,m1c1 ΔT = m2c2ΔT
Where m1 is 25g and m2 is 200g
so , 25c1 = (200+10)(22-2)
25c1 = 420
Therefore , c1 = 210/25
c1 = 16.8J⋅kg−1⋅K−1
Hence the specific heat of metal is 16.8 J⋅kg−1⋅K−1
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A net force of 126 N [S] is applied to a 70 kg sprinter. Determine the acceleration of
the sprinter. [ans: 1.8 m/s? [S]]
[tex] \color{darkblue} \mathbb{EXPLANATION:}[/tex]
— The formula for acceleration is given by:
[tex] \underline{ \boxed{ \tt a = \frac{F}{m} }}[/tex]where,
a is the acceleration measured in meters per second squared (m/s²)F is the net Force (Newtons/N)m is the mass (kilograms/kg)---------
— To get the acceleration, divide the given net force by the given mass. Its quotient is the acceleration that should be measured in meters per second squared (m/s²).
Using our formula/equation, we get:
[tex] \tt a = \frac{F}{m} \\ \: \: \: \: \: \: \: \tt \: a = \frac{126 \:N }{70 \: kg} \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \tt \: a = \underline{ \boxed{ \purple{ \tt \: 1.8 \: m/s²}}}[/tex][tex] \color{darkblue} \mathbb{FINAL \: \: ANSWER:}[/tex]
[tex]\bold{1.8 \: m/s²} \\ [/tex]_______________◇_______________
You buy a cup of coffee at a local coffee shop. It comes in a paper cup. The cup is too hot to hold and you let it sit on the counter for a while. Eventually the cup is cool enough to carry.
Which choice describes how heat energy transfer is related to thermal energy loss?
Answer:
Thermal energy from the cup was lost as heat to the environment thus reducing the temperature of the cup
Explanation:
Answer: Thermal energy from the cup was lost as heat to the environment thus reducing the temperature of the cup
Explanation: did workbook and got answer right
A car resting on a paved surface exerts a pressure (p) over an area of tire contact 1.28m^2. If the massif the car is 1.2x10^3Kg and the gravity is 9.8 N/Kg, then the pressure (P) is approximately equal to:
A. 2.36 x 10^5
B. 9.19 x 10^4
C. 9.19x10^3
D. 3.83 x 10^4
If this cycle continues over the next 100 years, which clams will be most likely to survive and reproduce?
A.
those that grow to be bigger than average
B.
those that have the longest natural lifespans
C.
those that are able to swim the fastest
D.
those that can withstand changes in water's salt levels
Based on adaptation, the clams that will be most likely to survive and reproduce are those that adapt best to the environmental changes.
Which adaptation will help clams survive?Adaptations are special features or structures that an organism possesses which enables it to survive in its envrionment.
Depending on the environmental changes, the clams that will survive and reproduce will be the ones that adapt best.
Assuming a cycle where levels of salt water in their environment increases, the clams that will survive and reproduce are those that can withstand changes in water's salt levels.
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The clams that will be more likely to survive and reproduce are those with favorable traits in specific environmental conditions.
How are survival and reproduction determined?These two factors are usually influenced by natural selection. This means specific organisms have favorable traits and this makes it more likely for these organisms to survive and reproduce.
For example, in a group of cheetahs, those that are faster have a favorable trait.Which clams will be more likely to survive and reproduce?Only those with favorable traits are more likely to survive and reproduce but this depends on the environmental conditions.
For example, if water's salt level is constantly changing, the ones that are more likely to survive and reproduce are those that can adapt to this change.Note: This question is incomplete because there is no information about the cycle; due to this, I answered it based on general knowledge.
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If I am lifting a box with a force of 100 N and the box has an acceleration of 10 N, what is the mass of the box?
Answer:
a. How much force is required to lift a box of weight 100 N upwards with a constant acceleration of 6.0 m/s2?
b. How much upwards force is required to lower the same box with a downward acceleration of 3.0 m/s2?
a. As the box weighs 100 N, its mass is 100 N / 9.8 ms-2 = 10.2 kg. To have an upward acceleration of 6.0 m/s2, there must be a net upward force of F =ma = 10.2 kg x 6.0 m/s2 = 61.2 N. The total upward force must be equal have a magnitude to overcome the downward force of gravity and to provide for the upward acceleration Ftotal up = 100 N + 61.2 N = 161.2 N.
b. There must be a net downward force F = ma = 10.2 kg x 3.0 m/s2 = 30.6 N upward. There must be an upward force to counteract the downward force of gravity so that the resultant will be 30.6 N. The equation necessary for this is 100 N - upward force = 30.6 N. Solving for the upward force gives 69.4 N.
Explanation:
A 60 watt light bulb runs for 5 seconds. How much energy does
it use?
If a riding lawnmower engine exerts 19 hp in one minute to move the mower, how much work is done?
Answer: Work done = 838470
Explanation:
The magnitude of the electrostatic force between two point charges is f. If the distance between the charges is doubled, the electrostatic force between the charges will become.
When the distance between the charges is doubled, the electrostatic force between the charges will reduce by quarter.
Electrostatic force between two point charges
The electrostatic force between two point charges is calculated using Coulomb's law;
[tex]F = \frac{kq^2}{r^2}[/tex]
where;
F is the forcek is Coulomb's constantq is the charger is the distanceWhen the distance between the charges is doubled
[tex]F = \frac{kq^2}{(2r)^2} \\\\F = \frac{kq^2}{4r^2}\\\\F = \frac{1}{4} (\frac{kq^2}{r^2} )[/tex]
Thus, when the distance between the charges is doubled, the electrostatic force between the charges will reduce by quarter.
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4. A lamp in a circuit has 4 Amps of current. If there is 32 12 of resistance
in the lamp, what is the voltage?
Answer:
your mum because I don't know how to explain why she was doing it but I think I have to do it myself again but it was just the way
When the radius increases the centripetal acceleration will.
I don't know the answer it is too much hard for me
at what time would the object reach a speed of 45 km/ hr? and what is the objects acceleration
When Harley-Davidson adapted some of its motorcycles with features such as smaller hand grips, lower seats, and an easier-to-pull clutch lever, it was attempting to _______.
