According to the law of mass, 8 grams of hydrogen and 32 grams of oxygen will combine to form how many grams of water?

Answer:  (see explanation below)

Explanation:

A meteor is a meteoroid (a space rock) that enters the earth's atmosphere.  Because the earth's atmosphere is very dense, the meteoroid heats up and glows.  A meteor shower is when the earth passes through the debris tail produced by a comet.  The debris tail contains multiple small meteoroids.

Answer:

The speed of the bus moving at a speed of 45 km/h in m/s is (a) 1.25 x \(10^{1}\) m/s.

Explanation:

What is speed?

Speed is defined as the distance covered by a moving body in unit time (that is 1 s, 1 minute, or 1 h).

The bus is moving at a speed of 45 km/h.

i.e, in 1 hour, the bus moves a distance of 45 km.

Since 1 hour = 60 minutes and 1 km =  \(10^{3}\) m, so, we may say that

In 60 minutes the bus moves a distance of 45 x \(10^{3}\) m.

Since 1 minute = 60 seconds,

So 1 hour = 60 x 60 s = 3600 s. Thus,

In 3600 s, the bus moves a distance of 45 x \(10^{3}\) m.

In 1 s, the bus moves a distance of  \(\frac{45 * 10^{3} }{3600} m\)

Simplifying the expression we get,

The bus moves at a speed of 12.5 m/s or 1.25 x \(10^{1}\)m/s.

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The launch angle a horizontal range maximum height is 4/5 is 77.47°.

Given, the maximum height of a projectile is 4/5 of its horizontal range. Let us assume that the maximum height and horizontal range be h and R respectively.

Let the initial velocity of the projectile be v₀ and the angle of projection be θ.

Since the projectile is launched over a horizontal surface, the initial vertical velocity of the projectile is 0.

Using the formulae of motion under constant acceleration, we can write, h = v₀sinθ)²/2g R = v₀²sin2θ/g

Where g is the acceleration due to gravity.

Substituting the value of v₀ from the first equation into the second equation, we get,

R = h tanθ/2 = 4R/5 tanθ/2

On simplification, we get,

tanθ/2 = 8/5

tanθ = 16/5

tan⁻¹16/5 = 77.47°

So, the launch angle is 77.47°.

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The center of mass is the point located in an average position concerning the objects' positions and their masses. (a/3;a/3) is the location of the COM.  

The center of masses of a given system of particles or objects is the position under which all external forces are acting. Any uniform force acts on this point.

This position is the average position of all the components of the system concerning their masses. It can be placed in one, two or three dimensions according to the system.

Coordinate X of the center of masses is given by the following formula,

Xcom = Σ(Ximi) / Σmi

This is the adition (Σ) of each particle position on the X-axis (Xi) multiplied by their mass (mi), and the result divided by the summation of all masses -total mass-.

In the same way, coordinate Y of the center of masses is given by the following formula,

Ycom = Σ(Yimi) / Σmi

This is the adition (Σ) of each particle position on the Y-axis (Yi) multiplied by their mass (mi), and the result is divided by the summation of all masses.

The center of masses is located in the position (X, Y).

According to this framework, we can get the coordinates of the center of masses for this bidimensional system. Coordinates can be expressed in meters or centimeters (m or cm).

Data:

     Particle ⇒ (X;Y)

Coordinate X  ⇒  Xcom =  Σ(Ximi) / Σmi

                             Xcom =  (0m) + (0m) +(am) / m +m +m

                             Xcom =  am / 3m

                             Xcom =  a/3

Coordinate Y  ⇒  Ycom =  Σ(Yimi) / Σmi

                             Ycom =  (am) + (0m) +(0m) / m +m +m

                             Ycom =  am / 3m

                             Ycom =  a/3

Coordinates of the center of masses, (X;Y) = (a/3 ; a/3)

(a/3 ; a/3) is the location of the center of mass in the proposed bidimensional system.

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The energy stored in the inductor at t = 150 ms is approximately 1.46 J. The energy stored in an inductor can be calculated using the formula:

E = (1/2) * L * I^2.

Where E is the energy, L is the inductance, and I is the current flowing through the inductor. In this case, the energy is zero at t = 0, which means the initial current is zero. However, as the voltage oscillates at a frequency of 60 Hz, the current also oscillates in the inductor.

To determine the energy stored at t = 150 ms, we need to find the current at that time. Since the frequency is given as 60 Hz, we can use the equation for the current in an inductor in an AC circuit:

I = (V / ωL) * sin(ωt)

where V is the voltage, ω is the angular frequency (2πf), L is the inductance, and t is the time. By substituting the given values into the equation, we can calculate the current at t = 150 ms. Then, using the current value, we can calculate the energy stored in the inductor at that time, which is approximately 1.46 J.

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Answer: it's rather A or B

Explanation: those are the moments it stops but most likely it is answer A.

The value of force is 1.7 × 10⁻³ N, with the direction opposite to that of the bat's motion.

When an object collides with another object, they exchange energy. For example, a baseball and bat collision or a car collision. When two objects collide, the force of the collision has to be equal on both sides of the collision according to Newton's Third Law. So, to find the value of force, we will apply the equation:

F = ΔP / ΔT

where F is the force, ΔP is the change in momentum, and ΔT is the time of collision. The equation represents the impulse momentum theorem.

Now, let's apply the given values to the above equation.

Final momentum (p2) = mass × final velocity (v2)

p2 = 0.15 kg × (-50 m/s)

p2 = -7.5 kg.m/s

Initial momentum (p1) = mass × initial velocity (v1)

p1 = 0.15 kg × (40 m/s)

p1 = 6 kg.m/s

Change in momentum (ΔP) = p2 - p1

ΔP = -7.5 kg.m/s - 6 kg.m/s

ΔP = -13.5 kg.m/s

Time of collision (ΔT) = 8.0 × 10³ s

Now, putting the values of ΔP and ΔT in the equation of impulse momentum theorem, we get:

F = ΔP / ΔT

F = -13.5 kg.m/s ÷ 8.0 × 10³ s

F = -1.7 × 10⁻³ N

Thus, the value of force is 1.7 × 10⁻³ N, with the direction opposite to that of the bat's motion.

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The acceleration of the elevator at this time was 2m/s² and the elevator was accelerating the upward direction.

The mass of the child standing on a spring scale in an elevator is 30 kg the elevator is showing a reading of 360 Newtons.

The reading note by the elevator is given by radiation,

W = M(g+a)

Where w is the reading of the spring scale,

M is the mass of the child,

g is the gravitational acceleration which is given to be 10m/s² and a is the acceleration of the elevator.

Putting values,

360 = 30(10+a)

12 = 10+a

a = 2m/s²

As you can see from the above result that the acceleration of the lift is 2m/s² and because it is positive it means that the elevator is accelerating in the upward direction.

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Answer:

vote me brainliest

Explanation:

The magnitude B of the magnetic field at the center of the semicircles is given by these expression B = (μ₀(I(outer) - I(inner)))/(π(a + b)). The B in terms of the asked variable.

In this case, we have two concentric semicircles, each carrying current in opposite directions. Let's consider a circular loop with radius r, where a < r < b. The magnetic field at the center of this loop will be the sum of the magnetic fields produced by the two semicircles.

For the outer semicircle (radius b), the magnetic field at the center can be calculated as follows:

∮ B · dl = μ₀I(outer)

For the inner semicircle (radius a), the magnetic field at the center has the opposite direction, so the equation becomes:

∮ B · dl = -μ₀I(inner)

Since the circular loop with radius r contains both the inner and outer semicircles, we can add these equations together:

∮ B · dl = μ₀(I(outer) - I(inner))

The line integral ∮ dl represents the circumference of the circular loop, which is 2πr:

B(2πr) = μ₀(I(outer) - I(inner))

B = (μ₀(I(outer) - I(inner)))/(2πr)

In this case, as we are interested in the magnetic field at the center of the semicircles, the radius r would be the average radius between a and b, given by:

r = (a + b)/2

Substituting this value into the equation, we get the final expression for the magnitude B of the magnetic field at the center of the semicircles:

B = (μ₀(I(outer) - I(inner)))/(2π((a + b)/2))

B = (μ₀(I(outer) - I(inner)))/(π(a + b))

Therefore, the magnitude B of the magnetic field at the center of the semicircles is given by B = (μ₀(I(outer) - I(inner)))/(π(a + b)).

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Answer:

Explanation:

To determine how far a car will travel when the brakes are applied, we can use the equation for distance traveled, which is:

d = vt

In this equation, d is the distance traveled, v is the initial velocity, and t is the time it takes for the car to come to a stop.

Since the initial velocity of the car is 15 m/s and we want to find the time it takes for the car to come to a stop, we can rearrange the equation to solve for t:

t = d/v

To find the time it takes for the car to come to a stop, we need to know the distance it will travel. To find the distance the car will travel, we can use the equation for the force of braking, which is:

F = ma

In this equation, F is the force of braking, m is the mass of the car, and a is the acceleration. Since we know the mass of the car (1100 kg) and the force of the brakes (6000 N), we can rearrange the equation to solve for a:

a = F/m = 6000 N / 1100 kg = 5.4545 m/s^2

We can now plug this value for acceleration into the equation for distance traveled to find the distance the car will travel:

d = vt = (15 m/s)(t) = (15 m/s)(t)

Answer:

Below

Explanation:

17.4 inches = 441.96 mm      14.8 inches = 375.92 mm

volume = 441.96 X 375.92 X T  

                                   = 166141.6 T  mm^3  <===where T = thickness in mm

Volume X density = mass

 166141.6 T mm^3  * 2.7 gm/cm^3  * cm^3 / 1000mm^3  = 10.8 gm

     solve for T = .024 mm

An investigation that could test whether a material has a density less than, greater than, or equal to water will involve placing the material in a given volume of water in a beaker and observing whether the material will float or sink in water.

the independent  variable is the volume of water

The dependent variable is the density of the material

The density of a substance is the ratio of the mass of the substance to the volume of the substance.

Mathematically;

Density = mass / volume

To determine the density of a substance, the density of that substance is compared to that of water.

A substance that has a density less than water will float in water.

A substance that has a density greater than water will sink in water.

A substance that has a density equal to water will just float in water.

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Answer:

The formula for gravitational potential energy (GPE) is: GPE = mgh, where m is the mass of the object in kg, g is the acceleration due to gravity in m/s^2, h is the height of the object in meters.

We have GPE = 67,000J, m = 375kg and h = 115m.

Rearranging the formula we get:

g = GPE / (mh)

Substituting given values into the equation:

g = 67000 J / (375 kg x 9.81 m/s^2 x 115 m)

g ≈ 1.75 m/s^2

Therefore, the acceleration due to gravity on this planet is approximately 1.75 m/s^2.

Answer:

not sure

Explanation:

jahhhhhsjjjjdddddhdhdj hbdbd#dialectical DHL I have no clue W Bush administration and I don't have any jshshhhhdgggddddddd the entire community was literate because

a. they had been slaves and had not been to school

b. they were too poor to go to school

c. work was more important to them than education

d. they avoided to going school

the entire community was literate because

a. they had been slaves and had not been to school

b. they were too poor to go to school

c. work was more important to them than education

d. they avoided to going school

the entire community was literate because

a. they had been slaves and had not been to school

b. they were too poor to go to school

c. work was more important to them than education

d. they avoided to going school

the entire community was literate because

a. they had been slaves and had not been to school

b. they were too poor to go to school

c. work was more important to them than education

d. they avoided to going school

jsbsbd the entire community was literate because

a. they had been slaves and had not been to school

b. they were too poor to go to school

c. work was more important to them than education

d. they avoided to going school

the entire community was literate because

a. they had been slaves and had not been to school

b. they were too poor to go to school

c. work was more important to them than education

d. they avoided to going school

the entire community was literate because

a. they had been slaves and had not been to school

b. they were too poor to go to school

c. work was more important to them than education

d. they avoided to going school

the entire community was literate because

a. they had been slaves and had not been to school

b. they were too poor to go to school

c. work was more important to them than education

d. they avoided to going school

BFF and I don't have any questions please call her and her husband to the hospital for a bit more time with my family grew up in the form of a ring whose inner circumference is it a lot of people who are you doing today beautiful and I don't have any questions please call her and her husband to the

Answer:

Explanation:

Physical properties are used to perceive and express matter and they can be preserved or regulated without varying the configuration of matter ( which involves shape, texture, color, odor, melting point, boiling point, density, solubility, polarity, e.t.c.).

Answer:

The sound will become less noticeable, or deafen.

Explanation:

Answer:

No. Exactly what you eat doesn’t make up your internal structure.

:)

Answer:

Explanation:

Light cheeses are less than 20 %, low fat cheeses are 20 to 30%, fat cheeses are 50 to 60%, double-cream cheeses are at least 60% and triple-cream cheeses are at least 75 %.

The minimal speed at which a mass must be ejected off the surface of the Earth in order to escape the gravitational pull of the planet is known as the escape speed.

The gravitational constant G, the mass of the attracting mass M, and the distance r from the centre of that mass are used to calculate the escape velocity, vesc, which is represented as vesc = Square root of 2GMr.

The speed at which a body must move in order to escape the gravitational pull of a certain planet or other object is known as the escape velocity. Let's imagine that a body is orbiting a planet of mass M at a distance r from it. Ve=r2GM, a body's escape velocity, where G is the gravitational constant. Explanation in video.

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The number to be placed in the blank is 1/4.

No. of cups of soda, s = 4

No. of cups of fruit juices, j = 16

So,

The ratio of soda and juice can be given as,

s/j = 4/16

s/j = 1/4

Therefore,

s = j/4

s = (1/4)j

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The number to be placed in the blank is 1/4.

No. of cups of soda, s = 4

No. of cups of fruit juices, j = 16

So,

The ratio of soda and juice can be given as,

s/j = 4/16

s/j = 1/4

Therefore,

s = j/4

s = (1/4)j

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Answer:

1. True

2. False

3. True

4. True

5. False

Answer:

Explanation:

Rule:

Hope this helps!

The generator power will be 59 kW. Power drop is the main factor for finding the generated power.

The maximum power input allowed to pass through a piece of equipment is known as the equipment's power rating.

Power drop = 5%

The relation of the frequency change with the power drop is;

\(\rm \frac{df}{dp} =5\%\\\\ \frac{f_{rated-f_1}}{P_{rated}-P_1}=0.05\\\\ \frac{f_{rated-60}}{100-61}=0.05\\\\ f_{rated}=61.95\)

For the grid frequency, 59.9 Hz

\(\rm \frac{f_{rated-f_2}}{P_{rated}-P_2}=0.05\)

\(\rm \frac{61.95-f_2}}{100-P_2} =0.05\\\\ 100-P_2 =20(61.95-59.9)\\\\P_2=100-41 \\\\ P_2=59 \ kW\)

Hence, the generator power will be 59 kW.

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The beetle's actual distance beneath the surface is 1.70 cm.

The given information states that the beetle appears to be 1.70 cm within the plastic. This means that the beetle is located at a distance of 1.70 cm from the outer surface of the cube of polystyrene plastic. However, the actual distance of the beetle beneath the surface is also 1.70 cm since it is embedded within the cube.

The phrase "appears to be" suggests that the observation of the beetle's position within the plastic is deceiving. The beetle is not deeper or closer to the surface than the given measurement. Therefore, the beetle's true depth beneath the surface is equivalent to the stated distance of 1.70 cm.

Distances and interpreting spatial relationships within objects like the embedded beetle.

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The basketball player must be going at 3.57 m/s when she leaves the ground.

Given the following data:

We know that acceleration due to gravity (a) for an object or body is equal to 9.8 meter per seconds square.

To find how fast (velocity) the basketball player must be going when she leaves the ground, we would use the third equation of motion;

\(V^2 = U^2 + 2aS\)

Where:

Substituting the given parameters into the formula, we have;

\(V^2 = 0^2 + 2(9.8)(0.65)\\\\V^2 = 12.74\\\\V = \sqrt{12.74}\)

Final velocity, V = 3.57 m/s

Therefore, the basketball player must be going at 3.57 m/s when she leaves the ground.

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Answer:

Difference : Balloon framing go through from foundation to top floor while Platform do not

advantages and disadvantages

Balloon framing : It has less vertical shrinkage  ( disadvantage )

platform framing : It has more vertical shrinkage and fire stops ( advantage )

platform framing : It is easier and safer to use

Reason for platform framing :

Due to these advantages Platform framing has become a better choice

Little added fire stopping is required in platform framing because of double tap plate present which can act as as a fire stop

Steel beam/ glue laminated wood beam is preferred at foundation level because wood beam under the ground will most likely shrink over time

Explanation:

Differences : Balloon framing a form of building houses using a special kind of timber construction its studs start from the foundation and go to all the way to the last floor while in Platform framing the studs are interrupted by floor platforms ( i.e. they do not go through like in Balloon framing )

advantages and disadvantages

Balloon framing : It has less vertical shrinkage  ( disadvantage )

platform framing : It has more vertical shrinkage and fire stops ( advantage )

platform framing : It is easier and safer to use

Reason for platform framing :

Due to these advantages Platform framing has become a better choice

Little added fire stopping is required in platform framing because of double tap plate present which can act as as a fire stop

Steel beam/ glue laminated wood beam is preferred at foundation level because wood beam under the ground will most likely shrink over time

This is an exercise in Rectilinear Uniformly Varied Motion (MRUV) is a type of motion in which an object moves in a straight line and experiences changes in its velocity at a constant rate. In this type of motion, the acceleration of the object remains constant over time.

The distinctive feature of the MRUV is that the velocity of the object changes uniformly, that is, its velocity increases or decreases by a constant amount in each unit of time. If the object experiences a positive acceleration, its velocity increases with time. On the other hand, if the object experiences a negative acceleration, its speed decreases.

In an MRUV, constant acceleration has a direct impact on displacement and the time it takes for the object to reach a certain speed. Also, the direction of the acceleration determines whether the object is accelerating or decelerating relative to its initial motion.

This type of movement is found in various situations of daily life, such as the launch of an object upwards and its subsequent fall, the movement of cars on a road with acceleration or braking, or even the study of bodies in free fall.

Vf = V₀ + a × t

Where:

In this case, the initial velocity (vi) is 1 m/s, the acceleration (a) is -1 m/s^2 (negative because it indicates deceleration), and the time (t) is 4 seconds.

Substituting these values into the formula, we get:

Vf = V₀ + a × t

Vf = 1 m/s + (-1 m/s²) × 4 s

Vf = 1 m/s - 4 m/s

Vf = -3 m/s

.

We want to convert the speed of the bus from kilometers per hour to meters per second.

To do this, multiply the speed in km/hr by 1,000 and divide by 3,600.

The formula to do this is: 1 km/hr = 1,000/3,600 m/s

Therefore, we have that 45 km/hr is:

45 x 1000/ 3,600 ➡️ 12.5 m/s = 1.25 x 10 to the 1st power m/s

The answer is option A.