The number of mole of C that you have, given that that you have 7.77×10²⁴ atoms is 12.90 moles
How do i determine the number of mole?From the question given above, the following data were obtained:
Number of atoms of C = 7.77×10²⁴ atomsNumber of mole of C =?The number of mole of C can be obtained as illustrated below:
From Avogadro's hypothesis,
6.022×10²³ atoms = 1 mole of C
Therefore,
7.77×10²⁴ atoms = (7.77×10²⁴ atoms 1 mole of C) / 6.022×10²³ atoms
7.77×10²⁴ atoms = 12.90 moles of C
Thus, the number of mole of C is 12.90 moles
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Bumper car A (331 kg) moving east at 3.87 m/s hit stationary car B (208 kg). After, the car A moves .88 m/s east. What is the velocity of car B?
Answer:
Ub = 221.99m/s
Explanation:
(Ma x Ua)+(Mb x Ub) = (Ma + Mb)V
(331 x 3.87)+(208 x Ub) = (331 + 208)88
(1257.8) + (208 x Ub) = 47432
(208 x Ub) = 47432 - 1257.8
(208 x Ub) = 46174.2
Ub = 46174.2/208 = 221.99m/s
Ub = 221.99m/s
Answer:
4.75
Explanation:
M1V1 + M2V2 = M1V3 + M2V4
[(331*3.87) , 90°] + 0 = [(331*0.888) , 90°] + M2V4
M2V4 = 987.042 , 90°
divide through by M2
V4 = 4.75 m/s east
the ostringstream member function ____ returns the contents of an ostringstream buffer as a string.
The ostringstream member function "str" returns the contents of an ostringstream buffer as a string. Here's how you can use it:
1. Create an ostringstream object:
ostringstream oss;
2. Write data to the ostringstream buffer using the insertion operator (<<):
oss << "Hello";
oss << " World";
3. Retrieve the contents of the buffer as a string using the "str" member function:
string result = oss.str();
The variable "result" will now contain the string "Hello World".
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Write code that inserts userItem into the output string stream itemsOSS https://brainly.com/question/14546794
100 ml de una disolucion 0,5 M de sulfato de cobre II
Answer:
100 ml de una disolucion 05 M de sulfate de vivre
A 10cm long, 2cm wide wooden wedge is pushed into a soft wood block calculate the load on the soft wood if the effort applied id 30 N
I need help please I will give points
Answer:
-5 N of force
Explanation:
Hope it helps!
Earthquakes also produce transverse waves that move more slowly than the p-waves. These waves are called secondary waves, or s-waves. If the wavelength of an s-wave is 2.3 × 104 m, and its frequency is 0.065 Hz, what is its speed?
Answer:
The answer is 1495m/s
Explanation:
v=f×wavelength
V=2.3×10⁴×0.065
V=1495m/s
We're given:
Wavelength of s-wave = 2.3 × 104 m (which is 23,000 meters)Frequency of s-wave = 0.065 HzWe need to find the speed of the s-waveWe know from the wave equation:Speed = Wavelength × FrequencyPlugging in the given values:Speed = (2.3 × 104 m) × (0.065 Hz)= 1495 m/sSo the speed of the s-wave is 1495 m/s.
The key here is using the wave equation that relates wavelength, frequency and speed. Given two of those factors, we can solve for the third. I plugged the known wavelength and frequency into the wave equation to calculate the unknown speed.
A stationary 3-kg hard steel ball is hit head-on by a 1-kg hard steel ball moving to the right at 4 m/s. After the collision, the 3-kg ball moves to the right at 2 m/s. What is the velocity (speed and direction) of the 1-kg ball after the collision?
From conservation of momentum we have that:
\(\begin{gathered} 1(4)+3(0)=1v+3(2) \\ 4=v+6 \\ v=4-6 \\ v=-2 \end{gathered}\)Therefore the velocity of the 1 kg ball after the collision is 2 m/s to the left.
Waves that move at a right angle to the direction of the wave are called
same direction as the wave are called
waves.
Waves in which the disturbance moves in the same direction as the wave are called .
waves. waves are two transverse waves that travel together and are at right angles to each other.
Do all electromagnetic waves travel at 300000 km/sec in a vacuum?
In a vacuum, electromagnetic waves all travel at the same speed of 300,000 km/sec, or 186,000 mph.
Every electromagnetic wave travels at the same speed, which in a vacuum is 300,000 km/sec (186,000 mi/sec). Due to electromagnetic waves' oscillatory nature, this happens. Light travels a certain distance in a year, measured in light-years.
Speed of light:
The velocity at which light waves move at the speed of light via different materials In particular, the exact value of the speed of light in the vacuum has now been found to be 299,792,458 meters per second. The speed of light is considered to be a basic constant of nature. Its significance extends well beyond being restricted to merely describing a feature of electromagnetic waves. This velocity, which is the single limiting velocity of the cosmos, limits the speed of all material particles as well as the speed of all signals traveling across space.
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Which two characteristics increase the strength of the gravitational force
between two objects?
A. Having centers that are closer together
B. Having hollow centers
C. Having greater masses
D. Having greater charges
Answer:
The answer is A and C.
Explanation:
Only two factors are relevant when dealing with the gravitational force between two objects - their mass and their distance apart from one another. Gravity's force is proportional to the product of the masses of the two objects and is inversely proportional to the square of the distance between them.
What is needed in a market for a good to be considered elastic?
If the amount demand of a product changes more than proportionally as its price rises or falls, then it is said to be elastic.
How is a market made elastic?The more replacements there are for an item, more elastic the good is, according to definition of an elastic good, which is where change in price results in a large movement in demand. Price elasticity of demand is determined by dividing percentage change in quantity required by the percentage change in price.
Products like cars, appliances, and luxury items that are rarely purchased are examples of elastic commodities. In the event that the cost of these products is momentarily high, consumers may decide to put off buying.
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Which formula for net force contains an error?
A) \(F_{net} =\) Δv/Δt
B) \(F_{net} =\) mΔv/Δt
C) \(F_{net} =\) ma
D) \(F_{net} =\) Δp/Δt
Answer:
A) lacks the mass of the object
a 20-cm -radius ball is uniformly charged to 82 nc . for help with math skills, you may want to review: volume calculations for a sphere for general problem-solving tips and strategies for this topic, you may want to view a video tutor solution of charges on a cell membrane.what is the electric field strength at points 5, 10, and 20 cm from the center? express your answers in newtons per coulomb separated by commas.
The electric field strength at points 5 cm, 10 cm, and 20 cm from the center of a uniformly charged ball with a radius of 20 cm and a charge of 82 nC is approximately 1.653 N/C, 0.413 N/C, and 0.103 N/C, respectively.
To calculate the electric field strength at these points, we can use Coulomb's law, treating the ball as a point charge located at its center. By applying the formula E = k * (q / r^2), where E represents the electric field strength, k is the electrostatic constant, q is the charge on the ball, and r is the distance from the center, we can compute the values.
For the first point at 5 cm from the center, the electric field strength is approximately 1.653 N/C. Similarly, at 10 cm from the center, the electric field strength is approximately 0.413 N/C. Lastly, at 20 cm from the center, the electric field strength is approximately 0.103 N/C. These values represent the strength of the electric field at each specified distance from the center of the charged ball.
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a force that is at rest or moves in at a constant speed and in a constant direction is called a what force
The question is fishing for "balanced force".
But the description in the question is terrible.
Two cannons / same amount of powder / same size cannon balls / one is short and the other is long, Which one would send the cannon ball a greater distance? Explain using physics
A cannon is a large-caliber gun that belongs to the artillery category. It typically fires a projectile propelled by an explosive chemical.
What are Cannons?Before smokeless powder was developed in the late 19th century, gunpowder, sometimes known as "black powder," served as the main propellant.
Depending on their intended purpose on the battlefield, different types of gun combine and balance these characteristics to differing degrees. Cannons differ in gauge, effective range, mobility, rate of fire, angle of fire, and firepower.
The word "cannon" is borrowed from a number of languages, with the original meanings typically being "tube," "cane," or "reed."
Therefore, A cannon is a large-caliber gun that belongs to the artillery category. It typically fires a projectile propelled by an explosive chemical.
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when a 6.0-f capacitor is connected to a generator whose rms output is 34 v, the current in the circuit is observed to be 0.25 a. what is the frequency of the source?
Given: Capacitance, C = 6.0 F, RMS Voltage, V = 34 V and Current, I = 0.25 AFormula: Reactance of a capacitor, XC = 1/(2πfC)Where, f is the frequency of the source. Capacitive reactance: Reactance of a capacitor is defined as the opposition of a capacitor to the flow of current through it. It is measured in ohms (Ω).The formula for calculating capacitive reactance is given by,XC = 1/(2πfC)Where,C is the capacitance of the capacitorf is the frequency of the source. From the given data, Capacitance, C = 6.0 F, RMS Voltage, V = 34 V and Current, I = 0.25 A. Now, we can calculate the capacitive reactance of the capacitor, XC.XC = V/IXC = 34/0.25XC = 136 ohms. Substitute the given values in the formula of capacitive reactance, we get;136 = 1/(2πf×6)Rearranging the above equation, we get;f = 1/(2π×6×136)f = 120 Hz. Therefore, the frequency of the source is 120 Hz.
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When a 6.0-f capacitor is connected to a generator whose rms output is 34 v, the current in the circuit is observed to be 0.25, the frequency of the source is 50Hz.
The formula for calculating the frequency of a source of alternating current is given by; f = I / (2πVCR).
Frequency refers to the number of occurrences of a repeating event per unit of time. It is a fundamental concept in physics and is commonly used to describe various phenomena, particularly in the context of waves and oscillations.
where; I = current, C = capacitance, V = voltage, R = resistanceπ = 3.14
From the question above, we have; C = 6.0fI = 0.25vV = 34v
Substituting the values into the formula above; f = 0.25 / (2 x 3.14 x 34 x 6.0)≈ 50Hz
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Lorentz Force Law: 1. A proton has a velocity of ū = (4. 33 x 106m/s)î when it encounters a magnetic field B (0. 0288T)). (a) What is the force, i on the proton due to the magnetic field? (b) What is the radius of the circular path the proton is now in? 202 y 107mis into
According to the given statement , the radius of the circular path the proton is now in is approximately 0.023 meters.
The Lorentz Force Law describes the force experienced by a charged particle moving in a magnetic field. Let's answer each part of the question step by step.
(a) To find the force on the proton due to the magnetic field, we can use the formula for the Lorentz force:
F = qvB
Where F is the force, q is the charge of the proton, v is its velocity, and B is the magnetic field strength.
Given:
q = charge of the proton = 1.6 x 10⁻¹⁹ C (coulombs)
v = velocity of the proton = 4.33 x 10⁶ m/s (meters per second)
B = magnetic field strength = 0.0288 T (tesla)
Substituting these values into the formula, we get:
F = (1.6 x 10⁻¹⁹ C)(4.33 x 10⁶ m/s)(0.0288 T)
Evaluating this expression, we find:
F ≈ 2.89 x 10⁻¹³ N (newtons)
Therefore, the force on the proton due to the magnetic field is approximately 2.89 x 10⁻¹³ N.
(b) To find the radius of the circular path the proton is now in, we can use the formula for the radius of a circular motion:
r = mv / (qB)
Where r is the radius, m is the mass of the proton, v is its velocity, q is its charge, and B is the magnetic field strength.
Given:
m = mass of the proton = 1.67 x 10⁻²⁷ kg (kilograms)
v = velocity of the proton = 4.33 x 10⁶ m/s (meters per second)
q = charge of the proton = 1.6 x 10⁻¹⁹ C (coulombs)
B = magnetic field strength = 0.0288 T (tesla)
Substituting these values into the formula, we get:
r = (1.67 x 10⁻²⁷ kg)(4.33 x 10⁶ m/s) / ((1.6 x 10⁻¹⁹ C)(0.0288 T))
Evaluating this expression, we find:
r ≈ 0.023 m (meters)
Therefore, the radius of the circular path the proton is now in is approximately 0.023 meters.
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a train is moving 4.82 m/s when it begins to accelerate. after 24.8 s it is moving 7.09 m/s. How far did it move in that time?
Unit=m
Which of the following does not need to be considered when selecting a bow?
A. Is the bow made by hand?
B. Will you shoot right or left handed?
C. Will the bow be used for target shooting, hunting or both?
D. Can the bow be held without straining?
Answer:
A. Is the bow made by hand?
Explanation:
Hope this helps.
A car can complete a 800 m long lap in 10 s. What is the speed of the car
Answer:
80 mph
Explanation:
can you plzzzzz make me brainliest
Answer:
178.955mph or 179mph
Explanation:
✨calculator✨
why are the layers of the earth in the order that they are in?
Answer:
Each layer has its own properties, composition, and characteristics that affects many of the key processes of our planet. They are, in order from the exterior to the interior – the crust, the mantle, the outer core, and the inner core.
Explanation:
how are transverse and longitudinal waves the same?
Explanation: dfvjdsbv dvjdbv dvuhdv
A wave has a frequency of 450 Hz and a wavelength of 0.52 m. What is the speed of the wave?
Answer:
Explanation:
ave speed is always (frequency) x (wavelength)
Speed = (450 /sec) x (0.52 m)
= 234 m/sec .
A vector starts at the point (0, 0) and ends at (3, 1). What is the magnitude and direction of the displacement?
Answer:
tbh vector does not have any direction at all the answer is 0
Solve this SERIES circuit to find the items needed. Enter numbers ONLY
Answer: is you in k12 and pick me for brainliest please in i will tell you the answer i did that all ready :)
Explanation:
Which statement best describes what will occur if enough thermal energy is removed from the system to cause a cha
А Molecular energy will decrease, and the substance will change from a gas to a liquid.
B
Molecular energy will increase, and the substance will change from a gas to a liquid.
C
Molecular energy will decrease, and the substance will change from a liquid to a gas.
D
Molecular energy will increase, and the substance will change from a liquid to a gas.
Answer:
А Molecular energy will decrease, and the substance will change from a gas to a liquid.
Explanation:
The right choice is that molecular energy will decrease for the system and the substance will change from a gas to a liquid.
When thermal energy is removed from a system, molecular energy reduces. Thermal energy is a form of kinetic energyThe energy causes an increase in the average speed of the molecule in a substance. When the energy is removed, the molecular speed reduces and this causes a gas to condense to liquids.which of the following are one of the most numerically dominant types of multicelled organisms on the planet
One of the most numerically dominant types of multicellular organisms on the planet are insects.
Insects, which belong to the class Insecta, have an estimated population of over 10 quintillion (10¹⁸) individuals worldwide. They are incredibly diverse and can be found in almost every habitat on Earth, ranging from tropical rainforests to deserts.
Insects play crucial roles in various ecosystems as pollinators, decomposers, and as a food source for other organisms. Their adaptability, high reproductive rates, and ability to exploit different niches have contributed to their numerical dominance.
Other examples of numerically dominant multicellular organisms include bacteria and phytoplankton, but insects generally have the greatest numerical representation.
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Please help!! This is the last question and i’m unsure! I will mark brainliest! Please try to provide a explanation you don’t have to but atleast a short one
Answer:
True
Explanation:
As of Newton's law, yes. Because when I land my feet on the ground, I apply a force. As per Newton's third law, the ground must apply the same force on me.
If its correct, may I hv brainliest?
A truck loaded with sand accelerates at 0.5 m/s2 on the highway. If the driving force on the truck remains constant, what happens to the truck’s acceleration if sand leaks at a constant rate from a hole in the truck bed?
Answer:
It will accelerate at a constant rate.
Explanation:
If the driving force is constant, with a constant reduction in weight, the truck will accelerate at a constant rate.
the acceleration of the truck increase if sand leaks at a constant rate from a hole in the truck bed.
What is Newton's second law of motion ?Force(F) applied on the body is mass(m) times its acceleration(a). i.e. F=ma according to this equation we get acceleration as a = F/m this equation says that when we apply more force to the body, more acceleration it gets. When more is the mass of the body, greater force is needed to accelerate with same amount to that less mass.
According to the relation, a = F/m
mass produces inertia in the body, means mass is a resistance to the linear motion. if mass is greater acceleration is less and mass is more the acceleration is more.
if mass sand leaks at a constant rate from a hole in the truck bed, mass of the truck decreases which increases the acceleration.
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An enemy ship is on the east side of a mountain island, as shown in the figure. The enemy ship has maneuvered to within d1= 2156 m of the h = 1840 m high mountain peak and can shoot projectiles with an initial speed of vi= 240 m/s. If the western shoreline is horizontally d2 = 245 m from the peak, what are the distances from the western shore at which a ship can be safe from the bombardment of the enemy ship?
If d2 ≤ 4593.6 m, the safe distance is d2.
If d2 > 4593.6 m, the safe distance is d2 - 4593.6 m.
Depending on the specific value of d2, you can calculate the corresponding safe distance using the above conditions.
To determine the distances from the western shore at which a ship can be safe from the bombardment of the enemy ship, we need to consider the projectile motion and the range of the projectiles.
Given:
Distance from the enemy ship to the mountain peak: d1 = 2156 m
Height of the mountain peak: h = 1840 m
The initial speed of the projectiles: vi = 240 m/s
Distance from the western shoreline to the mountain peak: d2 = 245 m
First, we can calculate the time it takes for a projectile to reach the mountain peak at height h. We can use the equation of motion for vertical displacement:
h = vit + (1/2)gt^2,
where h is the vertical displacement (h = 1840 m), vi is the initial vertical velocity (0 m/s since the projectile is launched horizontally), g is the acceleration due to gravity (approximately 9.8 m/s²), and t is the time of flight.
Plugging in the values, we have:
1840 = 0 + (1/2)(9.8)t^2.
Simplifying the equation, we find:
4.9t^2 = 1840.
Solving for t, we get:
t = sqrt(1840 / 4.9) ≈ 19.14 s.
Now, we can calculate the horizontal distance covered by the projectiles during this time. Since the initial horizontal velocity (vi) remains constant, the horizontal distance is given by:
d = vi * t.
Substituting the values, we have:
d = 240 m/s * 19.14 s ≈ 4593.6 m.
Therefore, the projectiles fired from the enemy ship can reach a horizontal distance of approximately 4593.6 m.
To find safe distances from the western shore, we need to consider the following scenarios:
If the distance from the western shoreline to the mountain peak (d2) is less than 4593.6 m, any ship at or beyond the western shoreline will be safe from the bombardment. In this case, the safe distance is given by d2 itself.
If the distance from the western shoreline to the mountain peak (d2) is greater than 4593.6 m, the safe distance will be the difference between d2 and 4593.6 m. This ensures that the ship is outside the range of the projectiles.
In summary:
If d2 ≤ 4593.6 m, the safe distance is d2.
If d2 > 4593.6 m, the safe distance is d2 - 4593.6 m.
Therefore, depending on the specific value of d2, you can calculate the corresponding safe distance using the above conditions.
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