Answers
Answer:
charge of the atom = -1
charge of the nucleus = 4
Related Questions
Calculate the power transfer when a pump moves 50kg of water through a vertical height of 8meters in 5seconds (take g =10meters per second)
Answers
Hi there!
Recall the following relationships:
[tex]W = \Delta U = mg\Delta h\\\\P = \frac{W}{t}[/tex]
W = Work (J)
U = Potential Energy (J)
m = mass (kg)
g = acceleration due to gravity (9.8 m/s²)
h = height (m)
t = time (s)
Begin by calculating the work:
[tex]W = 50(10)(8) = 4000 J[/tex]
Now, divide by the time to solve for power:
[tex]P = \frac{4000}{5} = \boxed{800W}[/tex]
**W is the unit for power (Watts). Be careful not to get the two confused.
Clara rode her skateboard 320 meters in 80 seconds. What is her average speed?
Answers
Formula for speed: Speed = Distance/Time
So apply the formula here... 320m/80s
320 divided by 80 gives us 4 so...
Clara's average speed is 4 meters per second
Hope this helped you in some way!
What is the tool that measures precipitation called.
Answers
Answer: Instruments for measuring precipitation include rain gauges and snow gauges, and various types are manufactured according to the purpose at hand. Rain gauges are discussed in this chapter. Rain gauges are classified into recording and non-recording types.
Brainliest pwease if i was successful in helping you out!
૮₍˶ •. • ⑅₎ა ♡QUIZ! (100 pnts! best answer gets brainliest)
what is the difference between Earth's gravitational force and the Moon's Gravitational force?
Answers
Answer:
the earth is larger and has a much stronger gravitational force than the moon. Due to its size, speed, and core. It allows us to live here and walk like normal. But on the moon there is next to none. just enough force to keep it nearby. You can throw a ball 300x further on the moon than on earth. But overall the biggest difference is that ours can hold atmosphere while the moon cannot.
Answer:
The gravitational force is a force that attracts any two objects with mass.
Earth's average surface gravity is about 9.8 meters per second per second
whereas
The Moon's surface gravity is about 1.6 meters per second per second.
that means
The Moon's surface gravity is weaker because it is far less massive than Earth.
so as a result
The gravitational force on Earth is much more stronger than Moon
Why can we get the absolute ages of the surfaces of both Mercury and Mars by using the surface ages determined from the Moon
Answers
Answer: because when you take the rock(dwanye) and bring it to the lab you can studie it and see how old it is mabey u will se the rock(Dwayne Johnson)
Explanation:
To get the absolute age of the surfaces of both Mercury and Mars by using the age of the surface determined from the moon by the process of dating surfaces by looking at the relationships between them is called stratigraphy.
How the age of a planet's surface is determined?Determining how a planet's surface has evolved over time is a key issue in planetary research. This provides information on both the dynamics of planetary interiors (such as how frequently volcanoes erupt or earthquakes occur) and the external processes that have an impact on planets (for example, how likely it is that a giant asteroid might hit the Earth and change it radically.)The age of each component of a surface is the easiest method to explain how it has changed over time. For example, a map of the area could be created and color-coded, with each color denoting a certain age group. On Earth, we frequently have easy access to numerous other ancient surfaces that are buried beneath the surface. (Obviously, the deeper surface must be older if it has buried the lower surface.) For example, in the Grand Canyon, it is possible to immediately observe the many strata of rock that have been dug on the canyon walls.To learn more about Planet's surface, refer to
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HELP
4. A hair dryer is rated at
1,200 W. If you use the
dryer for 0.25 h, how much
electric energy do you use?
Answers
The electrical energy consumed is 0.3 kWh.
Electrical energy
The electrical energy consumed is determined by taking the product of the electric power and the time of energy usage.
The electrical energy consumed is calculated as follows;
E = Pt
where;
P is the power (kW)t is time (h)E = 1.2 kW x 0.25 h
E = 0.3 kWh
Thus, the electrical energy consumed is 0.3 kWh.
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The part of the atom where the electrons cannot be found is the.
Answers
Answer:
Nucleus :)
Explanation:
An electron will only react with a proton in the nucleus via electron capture if there are too many protons in the nucleus.
I also learned this in freshman year in high school for biology.
Answer:
Nucleus
Explanation:
The Heisenberg Uncertainty Principle explains why electrons do not fall into the nucleus of an atom. The principle specially states that the product of the uncertainty of position and the uncertainty of momentum is greater than or equal to Planck's reduced constant divided by two.
What is the mass of a cart that has an acceleration of 5 m/s2 when a net force of 200 N is applied to it?*
Answers
Answer:
40 kg
Explanation:
F = ma
200N = m x 5 m/s²
m = 200/5 = 40 kg
BRAINLIEST.
GIVE ME DAT GOOD STUFF.
An unbalanced force gives a 2.00 kg mass an acceleration of 5.00 m/s? What is the force applied
to the object?
Answers
Answer:
10
Explanation:
F=m.a
(Force= mass.acceleration)
F = 2.5 = 10 N
In the illustration, the block on the table is at rest. Then, unbalanced forces act on the block. What is the result? Question 3 options: The block moves upward The block moves to the left The block moves to the right The block remains at rest.
Answers
The block on the table will move towards the right when the given unbalanced force act on the object. Option C is correct.
Unbalanced Force:When the force acting on the object is not equalized by the opposite force.
Net force:It is defined as the vector sum of all forces acting on the object at an instance.
[tex]F = \vec F_1+\vec F_2+.....[/tex]
Where,
[tex]F[/tex] - net force
[tex]\vec F_1[/tex] - Force acting on the right = 10 N
[tex]\vec F_2[/tex] - Force acting towards left = -8 N
Put the values in the formula,
[tex]F = 10 +(-8)\\\\F = 2[/tex]
Since the net force is positive it means the move towards the right.
Therefore, the block on the table will move towards the right when the given unbalanced force act on the object.
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Question 3
A stone weighing 5 newtons falls freely from a cliff 44 meters
high. The stone is accelerated at approximately
А 5 m/sec2
C 44 m/sec
B 10 m/sec2
D 220 m/sec
Answers
Based on scientific data, the stone is accelerated at approximately 10 [tex]m/s^2[/tex].
Given the following data:
Weight = 5 NewtonHeight = 44 meters.What is gravity?Gravity can be defined as a force of attraction that controls the movement of the planets such as Earth around the Sun.
This ultimately implies that, gravity is a universal force of attraction that acts between all objects or matter that are having both mass and energy, and can occupy space.
Gravity on planet EarthFurthermore, the gravity near the Earth's surface generally makes it possible for all physical objects such as stones to possess weight and experience a free fall.
According to astronomical records, the acceleration due to gravity for an object experiencing a free fall near the Earth's surface is 9.8 [tex]m/s^2[/tex].
In this scenario, the stone is accelerated at approximately 10 [tex]m/s^2[/tex].
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A refrigerator has a mass of 88 kg. What is the weight of the refrigerator?
A.
862 N
B.
9 N
C.
97.8 N
D.
9.8 N
Answers
Answer:
Explanation:
Hi there!
From the question;
Mass (m)= 88kg
Acceleration due to gravity (g)= 9.8m/s²
Then;
Weight (W) = m*g
= 88*9.8
= 862.4 N
Therefore, the weight of refrigerator is 862 N.
Answer: Option A.
Hope it helps!
The weight of the refrigerator is 862.4 N. So, the correct answer is option A.
What is meant by acceleration due to gravity ?The acceleration an object experiences as a result of gravitational force is known as acceleration due to gravity.
Here,
Mass of the refrigerator, m = 88 kg
Acceleration due to gravity, g = 9.8 m/s²
The weight of an object is defined as the gravitational force that pulls the masses of the Earth towards its centre.
Weight of the object is the product of its mass and the acceleration due to gravity.
Therefore, the weight of the refrigerator,
W = mg
W = 88 x 9.8
W = 862.4 N
Hence,
The weight of the refrigerator is 862.4 N. So, the correct answer is option A.
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Problema 1. Un Clavadista se lanza desde un trampolín a diferentes alturas 10 m, 3 m, y 1 m, Calcular:
a) la velocidad en caída libre del clavadista en cada una de las alturas si tarda 1.42 s, 0.78s, 0.44s respectivamente
Answers
La velocidad del buzo es de 7.04 m/s, 8.84 m/s y 2.27 m/s respectivamente.
VelocidadLa velocidad es la relación entre la distancia total recorrida y el tiempo total empleado. Está dado por:
Velocidad = distancia/tiempo
Para 10m de altura:
Velocidad = 10 m/1.42 s = 7.04 m/sPara 3m de altura:
Velocidad = 3 m/0.78 s = 3.84 m/sPara 1m de altura:
Velocidad = 1 m/0.44 s = 2.27 m/sLa velocidad del buzo es de 7.04 m/s, 8.84 m/s y 2.27 m/s respectivamente.
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In a reverse fault, where does the hanging wall move relative to the footwall?
Answers
Answer:
In reverse faults, the hanging wall moves upwards relative to the footwall.
A stone of mass 0.20 kg is thrown with speed 22 m s−1 from the edge of a cli% that is 32 m above the sea. The initial velocity of the stone makes an angle of 35° with the horizontal. Air resistance is neglected. a i Determine the horizontal and vertical components of the initial velocity.
ii Sketch graphs showing the variation with time of the horizontal and vertical components of velocity.
b i Calculate the maximum height above the cliff reached by the stone.
ii State the net force on the stone at the highest point in its path.
c i Using conservation of energy, determine the speed of the stone as it hits the sea.
ii Hence or otherwise, determine the time it took the stone to reach the surface of the sea.
Answers
Answer: ask sultan
Explanation: i don’t know l just ask him
The kinetic and potential energies of an object both always depend on which property?.
Answers
Answer:
the object's position.
Explanation: might help ion know
donner le lien entre la consommation d,eau et l,aspect de votre peau c,est un dm note reponse
Answers
Answer:
tu es sympa
Explanation:
What is the difference of Work and Job??
Answers
Answer:
To summarize, the term job refers to a specific occupational function or position, such as cook, teacher, or banker, whereas work refers to things that you undertake in general. Surprisingly, while all occupations need effort, actual work isn't necessarily a must.
Explanation:
I have a scientific argument due tomorrow, and I need help ASAP.
Question: Which design will launch the roller coaster car the fastest?
The requirement is 5 paragraphs.
Answers
Answer:
can you show the designs please
what was the history of a trebuchet
Answers
Answer:
The trebuchet was invented in France and was first reported to be used in 1124AD in the siege of Tyre (in present-day Lebanon) during the Crusades. As it was much more powerful than a catapult, a trebuchet became the siege weapon of choice.
Explanation:
Most people think that the trebuchet is a medieval weapon, but actually, it has its origins in ancient China. The ancient Chinese trebuchet could throw huge boulders up to 250 pounds, a distance of 200 feet. In addition, it was lightweight and mobile which was crucial as it could be moved around the battlefield with ease. The thing I love about the chinese trebuchet is that it pushes the boundaries of ancient engineering to create a ballistics revolution - a flexible, portable, killing machine.
PLEASE HELP A student climbs to the top of a press box where the cameras are. He wonders how many meters he is off of the ground below. So he drops a golfball he had in his pocket, and his friend times how long it takes for the ball to hit the concrete behind the press box. If it takes 1.5 seconds for the ball to hit. What is the height of the rail on top of the press box where the ball was dropped from?
Answers
The height of the rail on top of the press box where the ball was dropped from is 11.025 m.
The given parameters:
Time of motion of the ball, t = 1.5 sLet the height of the rail = hMaximum height of fall;The maximum height through which the ball was dropped from is calculated by applying second equation of motion;[tex]h = v_0_y t + \frac{1}{2} gt^2\\\\h = 0 + \frac{1}{2} gt^2\\\\h = \frac{1}{2} gt^2\\\\h = \frac{1}{2} (9.8) (1.5)^2\\\\h = 11.025 \ m[/tex]
Thus, the height of the rail on top of the press box where the ball was dropped from is 11.025 m.
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hi can someone pls answer my question. i srsly need it
*with complete solution pls :(
Answers
Apply mirror formula
[tex]\\ \tt\longmapsto \dfrac{1}{v}+\dfrac{1}{u}=\dfrac{1}{f}[/tex]
[tex]\\ \tt\longmapsto \dfrac{1}{v}=\dfrac{1}{f}-\dfrac{1}{u}[/tex]
[tex]\\ \tt\longmapsto \dfrac{1}{v}=\dfrac{1}{10}-\dfrac{1}{-5}[/tex]
[tex]\\ \tt\longmapsto \dfrac{1}{v}=\dfrac{1}{10}+\dfrac{1}{5}[/tex]
[tex]\\ \tt\longmapsto \dfrac{1}{v}=\dfrac{1+2}{10}[/tex]
[tex]\\ \tt\longmapsto \dfrac{1}{v}=\dfrac{3}{10}[/tex]
[tex]\\ \tt\longmapsto v=\dfrac{10}{3}[/tex]
[tex]\\ \bf\longmapsto v=3.3cm[/tex]
Now
[tex]\\ \tt\longmapsto m=\dfrac{-v}{u}=\dfrac{-3.3}{-5}=\dfrac{3.3}{5}=0.6[/tex]
Now
[tex]\\ \tt\longmapsto m=\dfrac{h'}{h}[/tex]
[tex]\\ \tt\longmapsto h'=mh [/tex]
[tex]\\ \tt\longmapsto h'=0.6(3.3)[/tex]
[tex]\\ \tt\longmapsto h'=1.98cm[/tex]
a car accelerates from 20m/s to30m/s in 10s. draw a velocity-time graph and calculate desplecement area.
Answers
Hey there mate ;),
Graph Attached. Please check.
Now displacement area:-
[tex]Area = \frac{(10s - 0s)(30ms - 20ms)}{2} [/tex]
[tex]→Area = \frac{100m}{2} \\ →Area = 50m[/tex]
So, area of displacement is 50 m
calculate the contact of 100 kg object when exerts 2000pa pressure
Answers
Answer:
0.49 m/s^2
Hope you could understand.
If you have any query, feel free to ask.
A baseball is picked up from the floor and placed on the edge of a table top. table with bouncyball What type of energy does the baseball now have?
A. chemical kinetic energy
B. chemical potential energy
C. gravitational kinetic energy
D. gravitational potential energy
Answers
The gravitational force between two volleyball players is 3.3x10^-7.
If the masses of the players are 61kg and 75kg. What is their separation?
Answers
The distance of separation between the two masses is 0.927 m.
Gravitational force:This is the force that exists between two masses in the universe.
To calculate the distance of separation of the masses, we use the formula below.
F = GMm/r².............. Equation 1Where:
F = Gravitational forcem = First massM = Second massG = Universal constantr = distance of seperation.Make r the subject of the equation.
r = √(GMm/F)................... Equation 2From the question,
Given:
F = 3.3×10⁻⁷ Nm = 61 kgM = 75 kgG = 6.69×10⁻¹¹ Nm²/kg²Substitute these values into equation 2
r = √(61×75×6.69×10⁻¹¹)/(3.3×10⁻⁷)r = 0.927 mHence, The distance of separation between the two masses is 0.927 m
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A tennis player practices against a backboard, hitting the ball to the board with a speed of 22 m/s. The ball bounces straight back from the board with a speed of 19 m/s. The mass of the ball is 0.055 kg. What is the average force the wall exerts on the ball if the ball is in contact with the board for 0.0125 s?
Answers
The average force the wall exerts on the ball is 180.4 N
Data obtained from the questionFrom the question given above, the following data were obtained:
Initial velocity (u) = 22 m/sFinal velocity (v) = 19 m/sMass (m) = 0.055 kgTime (t) = 0.0125 sForce (F) =? Determination of the impulseWe'll begin by calculating the impulse. This can be obtained as follow:
Initial velocity (u) = 22 m/sFinal velocity (v) = 19 m/sMass (m) = 0.055 kgImpulse (I) =?I = m(v + u)
I = 0.055 (19 + 22)
I = 0.055 × 41
I = 2.255 Ns
How to determine the force Time (t) = 0.0125 sImpulse (I) = 2.255 Ns Force (F) =?I = Ft
2.255 = F × 0.0125
Divide both side by 0.0125
F = 2.255 / 0.0125
F = 180.4 N
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How is the momentum of an object calculated?
Answers
Answer:
Momentum = Mass × velocity
by multiplying mass and velocity of that object , we can find out it's Momentum
P = M × V
an air craft heads north at 320 km/hr relative to the wind. the wind velocity is 80km/hr from the north. find the relative velocity of the air craft ralative to the ground
Answers
Answer:
Relative to the ground, the velocity of the aircraft is 240 km/hr
Explanation:
Relative velocity is different from normal velocity;
When 2 objects are moving in opposite directions towards each other, they will appear to be faster than they actually are;
This is known as the relative velocity;
The information tells us we have the aircraft moving 320 km/hr northwards relative to the wind;
The wind is in the opposite direction at 80 km/hr;
R = relative velocity of the aircraft
v = actual velocity of the aircraft
w = velocity of the wind
R = v + w
Note: if the wind was moving in the same direction, the formula would be R = v - w
320 = v + 80
v = 320 - 80
v = 240
The velocity relative to the ground is simply the actual velocity as the ground doesn't move;
So, relative to the ground, the velocity of the aircraft is simply 240 km/hr
A. It decreases gradually. B. It increases gradually. C. It falls sharply. D. It remains the same.
Answers
Answer:
D
The temperature remains same during the change of state.
I hope it helps.
