what experimental problems would you encounter if you attempted to determine the concentration of the metal ions in solutions of each of the following reagents

The magnitude of the force the garbage exerts on the floor of the service elevator is 109.8 N.

To find the magnitude of the force exerted by the garbage on the floor of the elevator, we need to use Newton's second law of motion, which states that the force exerted on an object is equal to its mass multiplied by its acceleration. In this case, the mass of the garbage is 9 kg and the acceleration is 1.4 m/s2. Therefore, the force exerted by the garbage on the floor of the elevator can be calculated as follows:
Force = Mass x Acceleration
Force = 9 kg x 1.4 m/s2
Force = 12.6 N/kg x 9 kg
Force = 109.8 N
Therefore, the magnitude of the force the garbage exerts on the floor of the service elevator is 109.8 N.

Learn more about acceleration here:

https://brainly.com/question/12550364

#SPJ11

The volume flux inside the rectangular duct is 0.028 m³/s.

Volume flux, also known as volumetric flow rate, is a measure of the volume of fluid passing through a given area per unit time. It is commonly expressed in cubic meters per second (m³/s). To calculate the volume flux in the given scenario, we can use the formula:

Volume Flux = (Air flow rate) / (Cross-sectional area)

First, we need to calculate the cross-sectional area of the rectangular duct. The area can be determined by multiplying the length and width of the duct:

Area = (138 mm) * (346 mm)

To maintain consistent units, we convert the dimensions to meters:

Area = (138 mm * 10⁻³ m/mm) * (346 mm * 10⁻³ m/mm)

Next, we can calculate the air flow rate using the given information. The air flow rate is given as 17 N/s, which represents the mass flow rate. We can convert the mass flow rate to volume flow rate using the ideal gas law:

Volume Flow Rate = (Mass Flow Rate) / (Density)

The density of air can be determined using the ideal gas law:

Density = (Pressure) / (Gas constant * Temperature)

where the gas constant (R) is given as 28.5 m/K, the pressure is 112 kPa, and the temperature is 20 degrees Celsius.

With the density calculated, we can now determine the volume flow rate. Finally, we can divide the volume flow rate by the cross-sectional area to obtain the volume flux.

Learn more about volume

brainly.com/question/14568432

#SPJ11

The angle at which a ray of light strikes a pane of window glass is smaller than the angle at which it passes out the other side.

When light go through window glass it will experience refraction due to change of light speed. The relation between angle of incidence and angle of refraction is given by the Snell's law:

n₁ sin∅₁ =  n₂ sin∅₂

Where:

n₁ = incident index (refractive index of medium 1)

n₂ = refraction index ((refractive index of medium 2)

∅₁ = incident angle

∅₂ = refraction angle

Typical refractive index for glass is around 1.5 while refractive index for air is 1.000273.

In the given case, the ray of light is from the window glass and pass out the other side. Hence,

n₂ = air

n₁ = glass

Since  n₁ > n₂ , the velocity in the air is greater than the velocity in the window glass. Hence, ∅₁ < ∅₂  or the incident angle is smaller than the refracted angle.

Learn more about refraction here:

https://brainly.com/question/14760207

#SPJ4

Answer ; 5

Explanation: hope it helps ur welcome

The primary usage of magnetite is as an essential iron ore for the production of steel. Additional uses include serving as a catalyst in the Haber process, which produces ammonia.

In beach sand, magnetite can occasionally be discovered in significant amounts. These black sands (also known as mineral sands or iron sands) can be found in a number of locations, including California in the United States, Lung Kwu Tan in Hong Kong, and the west coast of the North Island of New Zealand.

Because magnetite is poisonous, there is an issue. It results in oxidative stress, which interferes with regular cellular activity and helps to produce harmful free radicals, unstable molecules that can harm other crucial components.

To learn more about magnetite visit:

brainly.com/question/29724230

#SPJ1

Answer:

True

Explanation:

mass, length, time, electric current, temperature, luminous intensity and amount of substance

Answer: 24 m/s

Explanation:

1 ) Acceleration of the ball just before it strikes the ground = 10.67 m/s²

2 ) The initial speed of the ball = 1.15 m / s

3 ) The initial speed of the ball if the ball lands at 5.0 m/s = 3.2 m / s

v² = u² + 2 a s

v = Final velocity

u = Initial velocity

a = Acceleration

s = Displacement

1 ) In vertical motion,

v = 4 m / s

s = 0.75 m

u = 0

4² = 0 + ( 2 * a * 0.75 )

a = 16 / 1.5

a = 10.67 m / s²

2 ) The initial speed of the ball,

Resolving the velocity into its horizontal and vertical components,

\(V_{y}\)² = \(U_{y}\)² + 2 a s

\(V_{y}\)² = 0 + ( 2 * 9.8 * 0.75 )

\(V_{y}\) = 3.83 m / s²

V² = \(V_{x}\)² + \(V_{y}\)²

4² = \(V_{x}\)² + 3.83²

\(V_{x}\) = √ 16 - 14.67

\(V_{x}\) = 1.15 m / s

\(V_{x}\) = \(U_{x}\) = 1.15 m / s

3 ) If the ball lands with a speed of 5.0 m/s,

V² = \(V_{x}\)² + \(V_{y}\)²

5² = \(V_{x}\)² + 3.83²

\(V_{x}\) = √ 25 - 14.67

\(V_{x}\) = 3.2 m / s

\(V_{x}\) = \(U_{x}\) = 3.2 m / s

Therefore,

1 ) Acceleration of the ball just before it strikes the ground = 10.67 m/s²

2 ) The initial speed of the ball = 1.15 m / s

3 ) The initial speed of the ball if the ball lands at 5.0 m/s = 3.2 m / s

To know more about Horizontal projectile motion

https://brainly.com/question/13533552

#SPJ1

The shortest chain sling ACB for a movable bin is  1.228 m.

The question is not complete. A similar question is in the attachment. Use the image in a similar question for this problem. Look at the picture. In the system works

Triangle ABC is an isosceles triangle. If ∠ CAB = ∠ CBA = θ.

According to Newton's first law, in the y-axis

∑ F = 0

w - T₁y - T₂y = 0

T₁y + T₂y = 2,100

T₁ sin θ + T₂ sin θ = 2,100

5,000 sin θ + 5,000 sin θ = 2,100

10,000 sin θ = 2,100

sin θ = 2,100 ÷ 10,000

sin θ = 0.21

θ = sin⁻¹ (0.21)

θ = 12.12°

Look at AOC

Learn more about Newton's first law here: https://brainly.com/question/10454047

#SPJ4

The reason padded dashboards are used in cars is that they a.) change the impulse in a collision. Therefore option a) is correct.

Padded dashboards make automobiles safer as they increase the time taken to decrease the momentum of impacting body to zero, which also decreases the impact. Therefore, force acting on the padded dashboards is small.

If the driver or passenger hits the dashboard, then the force and time required to stop the momentum is exerted by the dashboard. Padded dashboards serve to extend the time duration of the impact, hence minimizing the effect of the force.

To know more about padded dashboard, refer

https://brainly.com/question/22099771

#SPJ1

Answer:

35

Explanation:

total magnification = eyepiece lens x objective lens

TM = 10X x 25X

TM = 250X

Answer:

The answer is

Explanation:

The velocity or speed of an object can be found by using the formula

\(velocity \: = \frac{distance}{time} \)

From the question

time taken to travel = 10 hours

distance covered = 550 miles

Substitute the values into the above formula and solve for the velocity

That's

\(velocity = \frac{550}{10} \)

We have the final answer as

Hope this helps you

The example of each of the energy electrical to heat, chemical to heat,  electrical to mechanical energy is as given below.

a.) Every electric heater has a resistor as its heating element. Electric heating is the conversion of electrical energy to thermal energy. It converts electrical energy into heat energy when an electric current crosses a resistor, according to the Joule heating principle.

b.) Exothermic reactions, which commonly release chemical energy in the form of heat, are those that take place. Newly formed bonds can store some of the heat energy required for a reaction to proceed as chemical energy.

c.) An electric motor converts electrical energy into mechanical energy. A generator converts mechanical energy into electrical energy. A storage dam's mechanical energy is transformed into electrical energy via a hydroelectric powerplant.

For more information energy conversions kindly visit to

https://brainly.com/question/11234965

#SPJ1

Answer:

I believe they are all correct.

Explanation:

Hope that helps!

The answer is C. I searched it up and people keep on saying that it's B, which is incorrect. I found another question on Brainly where someone said that C was the answer and the person who asked the question said "Correct, thanks."

Answer:

Momentum must be conserved in the collision.

The steel block must move faster after the collision to preserve momentum.

If the steel block is moving faster it will aso have more kinetic energy.

(Note; If the bullet hits the steel block it will have some momentum in the reverse direction and thus have a greater change in total momtntum than the bullet that becomes imbedded in the wood block)

As a star's temperature increases, it becomes hotter. Its color changes from orange, through yellow, to white.

Answer:

5 m/s

Explanation:

Mass of the boy + scooter system =  35 kg

Kinetic Energy =  437.6 J

437.6 = \(\frac{1}{2} 35 {v}^2\)

25.0057143 = \(v^{2}\)

v = 5 m/s

The velocity as a function of time is 0, and displacement between t = 10.0 s and t = 35.0 s is 0.

The vector quantity velocity (v), denoted by the equation v = s/t, quantifies displacement (or change in position, s), over change in time (t).

as S= 0, then

\(V_{total}\) = \(\frac{ Final Speed - initial speed}{total_time }\)

V=0.

Displacement is defined as the final position minus the starting position.

Displacement = Final distance- initial distance

S= 0

To know more about Velocity and displacement, use the link.

https://brainly.com/question/19979064

#SPJ1

Answer:

1.04%

Explanation:

Given that,

The power of drill = 3.5 kW = 3500 W

Transferred kinetic energy = 5000 kJ during 15 seconds of use.

We need to find the percentage efficiency of the drill. It can be given by :

\(\eta=\dfrac{P_o}{P_i}\times 100\)

Where

Po and Pi are output and input powers.

\(P_o=\dfrac{5000\times 10^3}{15}\\\\=3.34\times 10^5\ W\)

So,

\(\eta=\dfrac{3500}{3.34\times10^{5}}\times100\\\\=1.04\%\)

So, the percentage efficiency of the drill is 1.04%.

Explanation:

u=24

v=0

a=-0.29

s=

v^2=u^2+2as

s=(v^2-u^2)/2a

s=(0-576)/0.58

s=-575.42

Assuming you are supposed to write each conversion in scientific notation:

(2) 1 m = 100 cm, so

(67 cm) × (1/100 m/cm) = 67/100 m = 0.67 m = 6.7 × 10 ⁻¹ m

(3) 1 km = 1,000 m, so

(1.2 km) × (1000 m/km) = 1200 m = 1.2 × 10³ m

(4) 1 m = 1,000 mm = 10³ mm, so

(6.2 × 10 ⁻³ m) × (10³ mm/m) = 6.2 mm

(5) 1 m = 1,000,000,000 nm = 10⁹ nm, so

(4.05 × 10³ nm) × (1/10⁹ m/nm) = 4.05 × 10 ⁻⁶ m

(6) 1 g = 1,000,000 µg = 10⁶ µg, so

(3200 µg) × (1/10⁶ g/µg) = 3200 × 10 ⁻⁶ g = 3.2 × 10 ⁻³ g

Answer:

3 seconds

Explanation:

The initial velocity is 60 m/s at an angle of 30° to the horizontal, so we can calculate the initial velocity in the vertical direction as

Viy = Vi sin(θ)

Viy = 60 sin(30)

Viy = 60(0.5)

Viy = 30 m/s

Then, we can use the following equation to calculate the time that it takes to reach the maximum height.

At a maximum height the vertical velocity is 0 m/s, so replacing viy = 30 m/s, vfy = 0 m/s and g = 10 m/s², we get

Therefore, the answer is 3 seconds

Answer:

ovaries

Explanation:

they have two ovaries one on either side of the uterus.

I hope this helps

Since the magnification is equal to 1, the image height is​ the same as the object height which is 5 cm

Magnification is when the ratio of the size of the image to the size of the object is greater than 1

Given that an object of height 5cm is placed at 20cm from a concave mirror of focal length 10cm.

To find the image height, let us first find the image distance by using the formula below

1/f = 1/u + 1/v

Substitute all the parameters

1/10 = 1/20 + 1/v

1/v = 1/10 - 1/20

1/v = (2 - 1)/20

1/v = 1/20

v = 20 cm

Magnification = v/u = H/h

20/20 = H/5

H = 5 cm

Therefore, the image height is​ the same as the object height which is 5 cm

Learn more about Image Height here: https://brainly.com/question/13125211

#SPJ1

Answer:

Explanation:

The reaction force to the action force during a rocket launch would be the force exerted by the ground or launch pad on the rocket. The action force is the force of explosion from the burning fuel and expanding gases, which propels the rocket upward. The reaction force is the force exerted by the ground or launch pad in response to this action force, which keeps the rocket grounded and prevents it from moving. The action and reaction forces are equal in magnitude but opposite in direction, and they act on different objects. The action force acts on the rocket, while the reaction force acts on the ground or launch pad.

The observed wavelength of the spectral line from the receding star would be approximately 543.004 nm.

To calculate the observed wavelength of a spectral line from a star that is receding at a given speed, we can use the formula for the Doppler effect in light:

λ_obs = λ_lab * (1 + v/c)

Where:

λ_obs is the observed wavelength

λ_lab is the laboratory wavelength

v is the velocity of the star (0.8% of the speed of light)

c is the speed of light in a vacuum

Given:

λ_lab = 543 nm (or 543 × 10^-9 meters)

v = 0.8% of c = 0.008c (where c is approximately 3 × 10^8 meters per second)

Substituting the values into the formula:

λ_obs = (543 × 10^-9 meters) * (1 + 0.008)

Calculating the value:

λ_obs ≈ 543.004 × 10^-9 meters

To know more about wavelength refer here

https://brainly.com/question/31143857#

#SPJ11

Answer: the first is incorrect the second is correct the third is correct

Explanation: the fourth is correct the fifth is incorrect

Answer:

The air escapes

Explanation:

Without the cap to stop the pressure of the air it gets out and the tire flattens to a point of near impossible riding

The total momentum for the first, second, third, and fourth marble sets is 1.75, correspondingly.

A particle's momentum is the result of its mass and velocity. Since momentum has both a magnitude and a direction, it is a vector quantity. The temporal rate of change in momentum is equal to the force applied on the particle, according to Isaac Newton's second law of motion.

An object's momentum is determined by the product of its mass and velocity. With the aid of an example, this can be grasped clearly. The cricket ball weighs more than the tennis ball. if the two balls are launched at the same speed. To stop the cricket ball, more power is needed.

Momentum For Marbles 1, 2, 3, and 4 are :

Momentum = mass*velocity

Momentum For Marbles 1 : 5.00*0.35 = 1.75

Momentum For Marbles 2 : 5.00*0.35 = 1.75

Momentum For Marbles 3 : 5.00*0.35 = 1.75

Momentum For Marbles 4 : 5.00*0.35 = 1.75

Total Momentum For Marbles 1, 2, 3, and 4 are : 7

Learn more about momentum Visit: brainly.com/question/18798405

#SPJ4