Answer:
This is because the 11 positive protons and 10 negative electrons end up with an overall charge of +1.
Explanation:
Answer:
One electron in it's outer shell
Find the weight of a 65 kg person
Answer:
650N
Explanation:
we're using w=m×g
and gravity on earth is 10N
so it'll be
W=65 (being the mass) × 10
=650N
(explanation for a)
Which statement describes how this diagram could be changed so that it shows an electromagnet? so Battery Ammeter
A. Add a magnetic metal core inside the coil of wire
B. Add magnetic field lines around the wire coil.
C. Place a second battery between the ammeter and the wire coll.
D. Move the ammeter to the other side of the wire coil.
Answer:
It’s A
Explanation:
I just took the test
Answer:
Explanation:a
2 He Helium Which list gives the correct numbers of subatomic particles for a neutral atom of helium? O A. Two protons, two neutrons, four electrons B. Four protons, four neutrons, four electrons O c. Two protons, four neutrons, six electrons O D. Two protons, two neutrons, two electrons
Answer:
D
Explanation:
Two protons, two Neutrons, two electrons
the acceleration of an object is due to the net force on the object and the objects?
Answer:
The second law states that the acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object. The acceleration of an object depends directly upon the net force acting upon the object, and inversely upon the mass of the object.
How can we reduce friction
Answer:
Smoother surfaces, and less contact between objects.
Explanation:
Smoother surfaces create less friction and drag among the object pulled, so we definitely need those kinds of surfaces to reduce friction.
Has a definite shape and definite volume. Question 4 options: liquid gas solid
Answer:
solid
Explanation:
solid
Read the passage. Then write a paragraph that explains why the two ecosystems have such different kinds of plants. Use the terms biotic factor, abiotic factor , and limiting factor in your explanation.
Answer:search this up but put quizzlet at the end it should be there
Explanation:
How does the potential and kinetic energy change as the sled moves down the slope?
Answer:
KE increases and PE decreases.
Explanation:
First, note that the formula for kinetic energy is KE = (1/2)mv^2 where m is the mass and v is the velocity and the formula for potential energy is PE = mgh where h is the height it is at. Since mass and the acceleration provided by gravity doesn’t change, we can disclude that our conclusion. We know that the height (h) and velocity (v) does change, so let’s look at that. As you continue down the slope, you accelerate due to gravity. Thus, velocity increases and KE increases. As you continue down the slope, you get closer to the ground, hence h decreases and PE decreases.
I hope this helped! :)
In calisthenics, the resistance is ultimately provided by __________. A. free weights B. springs and elastic bands C. gravity D. weight machines
When practicing calisthenics, the athlete's body is the only element that offers resistance. Thus, the resistance is ultimately provided by _gravity_. Option C is correct.
---------------------
Calisthenic is a physical discipline that is based only on the use of body weight.
It is a training system with physical activities that do not require any external element (weights, balls, cord). Gravity is the only force that exerts resistance.
This discipline develops strength, precision, and movement coordination, which are fundamental to increasing the difficulty of the exercises.
The athlete's body is the only element that offers resistance. Thus, the resistance is ultimately provided by _gravity_.
------------------------------
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Answer:
C
Explanation:
How would the future of the universe differ from the past?
7. If 8 million kg of water flows over Niagara Falls each second, calculate the power available at the bottom of the falls.
Answer:
The power will be "3.92×10⁹ Watts". A further explanation is given below.
Explanation:
The given values as per the question,
Rate,
= 8 million kg
Distance,
= 50 m
Gravity,
= 9.8 m/s²
As we know,
The power will be:
⇒ [tex]Power = Rate\times Distance\times Gravity[/tex]
On putting the values, we get
⇒ [tex]= 8\times 10^6\times 50\times 9.8[/tex]
⇒ [tex]=3.92\times 10^9 \ Watts[/tex]
1. A 12 kg dog is running 5 m/s. How much kinetic energy does the dog have?
2. Another dog is also running at 5 m/s, but this one has 100 Joules of kinetic energy. What is this dog's mass?
Answer:
1.
2.
Explanation:
1. KE = 1/2mv^2
= 1/2 (12)×5^2
= 6× 25
KE = 150j
2. KE = 1/2 mv^2
100j = 1/2m(5)^2
2(100j) = m×25
m = 200÷ 25
m = 8 kg
hope it helps
Plz help i need answers to all these questions
1) On a flat surface: What is the net force of a 2kg box if team A is pulling with 20 N and team F is pulling back with 15 N?
Is the box accelerating? How much?
2) On a ramp: What is the net force of a 2kg box if it is on a ramp at a 30 degree angle and there is a force of friction 10 N?
Is the box accelerating?
What is the normal force
3) A 10 – kg box slides down a frictionless 18o ramp.
What is the acceleration of the box?
Answer:
1) The net force is 5 N. The box is accelerating 10 m/s
2) The net force is 6.986 N. It is accelerating. Normal Force is 16.986
Explanation:
1) 20 N forward - 15 N backwards = a net force of 5 N
Acceleration: Acceleration = Net Force * Mass ( derived from Force = mass * acceleration).
a = 5 N / 2 kg
a= 2.5 m/s^2
2)
how much time will it take to perform 440 joule of work at a rare of 11 w?
Answer:
40sec
Explanation:
Data
Work = 440 J
Power= 11watt
time = ?
Power = work done/time
===> time = work done/power
= 440/11
= 40sec
Which statement BEST describes the process of playing sports?
A. No pain, no gain.
B. Rules are meant to be broken as long as nobody gets hurt.
C. You should understand the risks of each sport and listen to your body.
D. none of the above
Please select the best answer from the choices provided.
Answer:
option A because in sport pain makes a player strongest.......
Answer: Choice C: You should understand the risks of each sport and listen to your body.
Explanation: The statement that BEST describes the process of playing sports is C. You should understand the risks of each sport and listen to your body. It’s important to be aware of the potential risks associated with each sport and to pay attention to your body’s signals to avoid injury.
A car is accelerating to the right. In which direction is the applied force?
right
left
up
down
Answer:
Left
Explanation:
The force is applied opposite of the acceleration.
Which part of an organism is preserved in cast and mild fossils
Answer:
Isn't it technically your brain? Because it's always in your skull and when you're younger you have cracks in your skull but as you grow, your skull fossilizes to mend those cracks. IT FOSSILIZES!
Explanation:
a 5 kg rock is lifted 3m find amount of work done
a= 98 J
Answer:
How long would it take a machine to do 13,000 joules of work if the power rating ... An object gains 15 joules of potential energy as it is lifted vertically 5.0 meters. ... As the time required to do a given quantity of work decreases, the power ... How much work is being done to the system by the person of the sled moves 10 m?
The table shows the diameter of four different types of electric wire....
Answer:
it is the fourth one!
Explanation:
i just did it on ap3x :)
The resistance of a wire which is used to power clothes dryer rank third as the area and diameter of wire is inversely proportional to the resistance of the wire. Thus, the correct option is A.
What is Electrical resistance?Electrical resistance is a measure of the opposition or friction to the current flow in an electrical circuit. Resistance is measured in the unit of ohms, that is symbolized by omega (Ω). Resistance of an electrical wire can be calculated by the formula:
R = (ρ×L)/A
where, R = Resistance of the wire,
ρ = Resistivity or specific resistance,
L = length of the electrical length,
A = Cross-sectional area of the electrical wire.
The resistance of a electrical conductor is dependent on the following factors including the cross-sectional area of the conductor, length of the conductor and the material of the electrical conductor.
Therefore, the correct option is A.
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a carver begins work on the block or granite that weighs 2700g which has a density of 2.7g/cm^3. What is the volume of the granite?
Answer:
V = 1000 [cm³]
Explanation:
To solve this type of problem we must apply the definition of density, which is equal to the relationship between mass and volume, in this way it can be easily found by means of the following equation.
[tex]Ro = m/V[/tex]
where:
Ro = density = 2.7 [g/cm³]
m = mass = 2700 [g]
V = volume [cm³]
Now replacing:
[tex]V = m/Ro\\V = 2700/2.7\\V = 1000 [cm^{3} ][/tex]
At which point is cool air circulating beneath warm air?
A. 1
B. 2
C. 3
D. 4
Answer:
The answer is A
Explanation:
I took the quiz
The point where the cool air circulated beneath warm air is option A. 1
Cool air circulation:Cold air should be entered from the left and movement should be down. It can't be clouded with the rain. The entering of the warm air should not be from the right and moved up. Neither the warm air should be entered from the top left and then moved down with respect to the clouds. In this way, the point of the cool air circulation should be one.
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( WILL GIVE BRAINLIEST TO WHOEVER ANSWERS FIRST AND SHOWS WORK) A car weighs 15300 N. What is its mass?
Answer:
Mass, m = 1561.23kg
Explanation:
Given the following data;
Weight = 15300N
We know that acceleration due to gravity is equal to 9.8m/s²
To find mass;
Weight can be defined as the force acting on a body or an object as a result of gravity.
Mathematically, the weight of an object is given by the formula;
[tex] Weight, W = mg[/tex]
Where;
m represents the mass of an object measured in kilograms. g is the acceleration due to gravity measured in meters per seconds square.Substituting into the equation, we have;
[tex] 15300 = m*9.8[/tex]
[tex] m = \frac {15300}{9.8}[/tex]
Mass, m = 1561.23 Kg
Therefore, the mass of the car is 1561.23 kilograms.
How do the echoes of the sounds of animals help them?
Answer:
Echolocating animals emit calls out to the environment and listen to the echoes of those calls that return from various objects near them. They use these echoes to locate and identify the objects. Echolocation is used for navigation, foraging, and hunting in various environments.
Un equipo de dos corredores ganó una carrera de automóviles a campo traviesa. Casa conductor de estuvo al volante la mitad del recorrido. Si uno corrió a 60 km/h en promedio y el otro a 20 km/h, también en promedio, ¿Cuál fue la rapidez media general si la distancia total recorrida fue de 600km?
Answer:
La rapidez media general fue 30 km/h.
Explanation:
Para encontar la rapidez media debemos hallar el tiempo que tarda cada uno en recorrer 300 km (cad uno recorre la mitad del recorrido total que es 600m):
[tex] t_{1} = \frac{1 h}{60 km}*300 km = 5 h [/tex]
[tex] t_{2} = \frac{1 h}{20 km}*300 km = 15 h [/tex]
[tex]t_{T} = t_{1} + t_{2} = 5 h + 15 h = 20 h[/tex]
Entonces, la rapidez media es:
[tex]v = \frac{\Delta x}{\Delta t} = \frac{600 km}{20 h} = 30 km/h[/tex]
Por lo tanto, la rapidez media general fue 30 km/h.
Espero que te sea de utilidad!
Why are body senses in psychology?
Answer: Body senses provide you with information about the position of your body in respect to your environment. The four main ones are touch, pain, vestibular, and kinesthesis.
More in details:
Our senses allow us to experience the world we live in, and are one of the key components of consciousness. ... This is why the study of our senses, or sensation, is considered to be such an important area of psychology, because it is one of the key components that makes consciousness possible.
Which of the following most likely causes Earth's inner core to be a solid?
A The pressure in the core is very high
B) The metals in the core are very heavy
The temperature of the core is very low
D
The chemicals in the core are very reactive
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Name two offensive strategies that can be utilized in the game of baseball
what makes an molecule compound
Explanation:
A molecule is a group two or more atoms held together by chemical bonds.
the magnification is less than 1 what does it mean
When the magnification is less than 1 it means that the height of the image formed is less than that of the object.
Magnification:Magnification is defined as the ratio of the size of the image formed to the ratio of the object.
When an object is examined under a lens or a curved mirror, it produces images described by ray optics based on the position of the object from the lens or the mirror.
The image formed may be of the same size, maybe greater than the object or may be smaller based on the position and distance of the object from the lens.
If the image formed is smaller than the object then, the ratio of the height of the image to the ratio of the height of the object will be less than 1.
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Fill in the blank. When using a wrench if you double the length of the wrench (effort arm), you have ______ the required force to do the same amount of work.
Quartered
tripled
doubled
halved
Answer:
halved
Explanation:
the formula
Answer:
Halved
Explanation:
Fill in the blank. When using a wrench if you double the length of the wrench (effort arm), you have Halved the required force to do the same amount of work.