How much has the ayompspheric co2 content in parts per million (ppm) increased since 1958

Answer:

Explanation:

The frictional force is

=

28.71

N

Explanation:

Let

F

r

=

frictional force

and

F

=

the force applied

The net force acting on the object is

(

F

−

F

r

)

By Newton's second Law

(

F

−

F

r

)

=

m

a

where,

a

=

the acceleration

and

m

=

mass of the cart

So,

F

−

F

r

=

m

a

F

r

=

F

−

m

a

=

34.5

−

4.52

⋅

1.28

=

28.71

N

I suggest that the students move forward with option A.

Test funnels of the same size and material with varying sized openings. This will allow them to determine the optimal size for the opening that will help direct the marble to the launch pad. Once they have determined the optimal size, they can move forward with constructing the funnel with that size opening.

The gravitational force of Earth on the satellite, given that the satellite is launched into orbit 30000 km above sea level is 1.63×10³ N

The gravitaional force between two objects can be obtained by using the following formula:

F = GM₁M₂ / r²

Where

The following data were obtained from he question:

The gravitaional force can be obtained as shown below:

F = GM₁M₂ / r²

F = (6.673×10¯¹¹ × 5.4×10³ × 6.0×10²⁴) / (36400000)²

F = 1.63×10³ N

Thus, the gravitational force is 1.63×10³ N

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Answer:

-0.34m/s

Explanation

According to the law of conservation of momentum

m1u1 +m2 u2 = (m1+m2)v

m1 and m2 are the masses

u1 and u2 are the initial velocities

v s the common velocity

Given

m1 = 1.5kg

m2 = 5.2kg

u1 = 2.3m/s

u2 = -1.1m/s (left direction)

Required

Final velocity v of the ball

Substitute into the formula

1.5(2.3)-5.2(1.1) = (1.5+5.2)v

3.46-5.72 = 6.7v

-2.26 = 6.7v

v = -2.26/6.7

v = -0.34m/s

Hence the final velocity of the bowling ball is 0.34m/s towards the left

Answer:

convex lens and a concave mirror

Answer:

c on edge

Explanation:

the minimum force necessary to create the desired torque is approximately 57.14 Newtons.

To calculate the minimum force necessary to create the desired torque, we can use the formula:

Torque = Force * Distance

Given:

Desired torque = 20 N·m

Length of the wrench = 35 cm = 0.35 m

Force = ?

Rearranging the formula, we can solve for the force:

Force = Torque / Distance

Substituting the given values:

Force = 20 N·m / 0.35 m

Force ≈ 57.14 N

Therefore, the minimum force necessary to create the desired torque is approximately 57.14 Newtons.

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Answer:

oooh thanks

Explanation:

..................

Answer:

awwww thx you are to :)

Explanation:

The minimum serving temperature for grilled chicken fillets, as recommended for food safety, is 165°F or 74°C.

Chicken, including fillets, should be cooked thoroughly to ensure that harmful bacteria, such as Salmonella and Campylobacter, are destroyed. Cooking chicken to an internal temperature of 165°F (74°C) ensures that it is safe to consume and reduces the risk of foodborne illnesses.

Using a food thermometer is the most accurate way to determine the internal temperature of grilled chicken fillets. Insert the thermometer probe into the thickest part of the fillet without touching the bone, and make sure it reads at least 165°F (74°C) before considering the chicken fully cooked and safe to eat.

It is crucial to maintain proper cooking temperatures to ensure food safety and prevent the transmission of foodborne pathogens.

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Alpha particles have highest mass.

Alpha particles are most ionising.

Gamma particles are the most penetrating.

Beta particles are negatively charged.

Gamma particles have the highest speed.

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Answer:

Option A (1.51 m) is the appropriate option.

Explanation:

The given values are:

Speed of wave,

= 362 m/s

Period,

= 4.17

Now,

⇒  \(v=\frac{\lambda}{T}\)

then,

⇒  \(\lambda=vT\)

⇒     \(= 362\times 4.17\times 10^{-3}\)

⇒     \(=1.51 \ m\)

The equivalent resistance of the 3.89 Ω, 7.75 Ω, and 9.05 Ω resistors connected in series with a 12.0 V battery is 20.69 Ω.

The equivalent resistance of resistors connected in series is equal to the sum of the resistance of each resistor. Therefore, the equivalent resistance is: R = 3.89 Ω + 7.75 Ω + 9.05 Ω = 20.69 Ω

So, the equivalent resistance of the 3.89 Ω, 7.75 Ω, and 9.05 Ω resistors connected in series with a 12.0 V battery is 20.69 Ω.

The equivalent resistance of an electrical circuit refers to the single resistance that would have the same effect as the combination of multiple resistors in the circuit. It is a measure of the total opposition to current flow in the circuit. The equivalent resistance can be found by using various methods such as series, parallel, and combination circuits. The equivalent resistance of a circuit depends on the individual resistances, the connections between them, and the voltage and current in the circuit.

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The circuit shown has the drawback that it can only operate with alternating current.

The correct answer is D

A type of electrical current known as alternating current (AC) alternates the flow of electrons periodically or in cycles between two directions. Alternating current (AC) is the kind of current that circulates through electrical outlets used in everyday homes and power lines.

Both alternating current (AC) and direct current (DC) are types of electric current (DC). The way that electrons move determines how AC and DC are different from one another. While the flow of electrons in AC is constantly changing, moving first ahead and then backward, as opposed to DC's steady movement in one direction

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Answer:

We can use Coulomb's law to solve this problem:

F = k * q1 * q2 / r^2

where F is the force between the two charges, k is Coulomb's constant (k = 9 x 10^9 N m^2 / C^2), q1 and q2 are the magnitudes of the charges, and r is the distance between them.

We know the force F, the distance r, and the magnitude of one of the charges q1. We can rearrange the equation to solve for the magnitude of the other charge q2:

q2 = F * r^2 / (k * q1)

Substituting the values we have:

q2 = (250 N) * (0.15 m)^2 / (9 x 10^9 N m^2 / C^2 * 6.5 x 10^-5 C)

Simplifying:

q2 = 8.65 x 10^5 C

Therefore, the magnitude of the other charge is 8.65 x 10^5 C.

Answer:

V = f * λ           velocity equals frequency * wavelength

If f is increased then λ must decrease for the velocity to remain constant.

Answer:

D) 1414 nm

Explanation:

This is correct on Edge.

Using the equation dsin(angle)=n(wavelength), we can solve for wavelength.

First we must convert the 500 lines per mm to nm. We do this by 1/500, giving you 0.002. Then move the decimal over six places to the right, resulting in 2000.

Then by plugging in the other values, we have 2000sin(45)=1(wavelength).

N is one because we are just solving for a first-order band.

So 2000sin(45)=wavelength

By using a calculator, we can see that the wavelength equals approximately 1414nm.

I hope this helped. If it did, I would really appreciate a Brainliest!!

Have a great day:)

Answer:

1414

Explanation:

took the test :)

An unbalanced force acting on an object results in the object's motion changing. The object may change its speed (speed up or slow down), or it may change its direction. Friction is a force that resists the motion or the tendency toward motion between two objects in contact with each other.

motion

Answer:

motion. FILLER FILLER FILLER

An object's mass, rather than its weight is used to indicate the amount of matter it contains because weight is defined as the amount of force due to an existing field (In most cases, gravitational field) that is experienced by the body. The weight of the same body can be different in different environments it's observed.

However, the mass of the body is the exact measure of the amount of matter contained in a body. Which is constant, regardless of the environment, or conditions the body is observed.

Hence, for real-world calculations and experimentation, the mass of the body is considered to represent the amount of matter it contains rather than its weight.

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Therefore, the effective value of g at 3,500 m above the Earth's surface is approximately 9.40 m/s^2

The acceleration due to gravity (g) decreases with increasing altitude above the Earth's surface. The formula to calculate the effective value of g at a height h above the Earth's surface is:

g_eff = g * (R / (R + h))^2

where g is the acceleration due to gravity at the Earth's surface, R is the radius of the Earth, and h is the height above the Earth's surface.

The acceleration due to gravity at the Earth's surface is approximately 9.81 m/\(s^2\). The radius of the Earth is approximately 6,371 km or 6,371,000 m.

At a height of 3,500 m above the Earth's surface:

g_eff = 9.81 m/\(s^2\) * (6,371,000 m / (6,371,000 m + 3,500 m))\(^2\)

g_eff = 9.40 m/\(s^2\)

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Answer:

\(\boxed{\sf Time \ being \ in \ which \ body \ remains \ in \ air = 4 \ s}\)

Given:

Velocity (u) = 20 m/s

Acceleration due to gravity (g) = 10 \(\sf m/s^2\)

To Find:

Time (t) being in which body remains in air.

Explanation:

Formula:

\(\boxed{\bold{\sf t=\frac{2u}{g}}}\)

Substituting values of u & g in the equation:

\(\sf \implies t = \frac{2 \times 20}{10}\)

\(\sf \implies t =\frac{40}{10}\)

\(\sf \implies t =\frac{4 \times \cancel{10}}{ \cancel{10}}\)

\(\sf \implies t = 4 \ s\)

\(\therefore\)

Time (t) being in which body remains in air = 4 seconds

The gas is compressed to 1/7 of its original volume, but since the process is horizontal, there is no change in volume. Hence, no work is done during the process A to B.

Therefore, the work done (WAB) during the process A to B is zero.

The work done by or on the gas during the process A - B can be calculated using the following formula: WAB = -∫PdV where P = pressure, and V = volume. To calculate WAB, we need to calculate the integral of PdV. Since B is represented by a horizontal line, the pressure P is constant. Therefore, WAB = -P∫dVWhere, ∫dV is the integral of dV from the initial volume Vi to the final volume Vf.

The gas is compressed from state A to state B. Therefore, the initial volume Vi = 7.0 dm³ and the final volume Vf = 1/7 * 7.0 dm³ = 1.0 dm³.WAB = -P ∫dV = -P(Vf - Vi)WAB = -200 kPa (1.0 dm³ - 7.0 dm³) = 1200 JThe work done by the gas during the process A - B is -1200 J.

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The one-dimensional diffusion equation or Fick's second law is the name of this equation. For the geographically and temporally variable concentration, it is solvable.

A diffusion explanation is what?

The movement of molecules along a concentration gradient is known as diffusion. It is a significant process that all living things go through. Diffusion facilitates the flow of materials into and out of cells.

Which definition of diffusion is the best?

Diffusion is the movement of molecules from a region where they are more concentrated to one where they are less concentrated. Therefore, "Movement of molecules from a region of their greater concentration to a region of their lower concentration" is the right response.

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Starting from rest on a circular track with a radius of 300 m and a constant tangential acceleration of 0.75 m/s², the car will travel a distance of approximately 0.2119 meters or 21.19 centimeters in 0.75 seconds.

To determine the distance traveled and the time elapsed by the car starting from rest on a circular track with a radius of 300 m and a constant tangential acceleration of 0.75 m/s², we can use the equations of circular motion.

The tangential acceleration is the rate of change of tangential velocity. Since the car starts from rest, its initial tangential velocity is zero (v₀ = 0).

Using the equation:

v = v₀ + at

where v is the final tangential velocity, v₀ is the initial tangential velocity, a is the tangential acceleration, and t is the time, we can solve for v:

v = 0 + (0.75 m/s²) * t

v = 0.75t m/s

The tangential velocity is related to the angular velocity (ω) and the radius (r) of the circular track:

v = ωr

Substituting the values:

0.75t = ω * 300

Since the car starts from rest, the initial angular velocity (ω₀) is zero. So, we have:

ω = ω₀ + αt

ω = 0 + (0.75 m/s²) * t

ω = 0.75t rad/s

We can now substitute the value of ω into the equation:

0.75t = (0.75t) * 300

Simplifying the equation gives:

0.75t = 225t

t = 0.75 seconds

The time elapsed is 0.75 seconds.

To calculate the distance traveled (s), we can use the equation:

s = v₀t + (1/2)at²

Since the initial velocity (v₀) is zero, the equation becomes:

s = (1/2)at²

s = (1/2)(0.75 m/s²)(0.75 s)²

s = (1/2)(0.75 m/s²)(0.5625 s²)

s = 0.2119 meters or approximately 21.19 centimeters

Therefore, the car travels a distance of approximately 0.2119 meters or 21.19 centimeters.

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Answer:

Is safe to use the bag.

Explanation:

To solve this problem we must use Newton's second law which tells us that the resulting force is equal to the product of mass by acceleration.

F = m*a

where:

F = force [N] (units of Newtons)

m = mass = 15 [kg]

a = acceleration = 7 [m/s²]

Now replacing these values in the previous equation:

F = 15*7

F = 105 [N]

F < 230 [N]

The force of 105 [N] is lesser than the maximum resistance force, therefore is safe to use the bag.

Answer: large reflector located in orbit above the Earth's atmosphere

Explanation:

Since the student wants to see the big weather patterns in the upper atmosphere of the planet, and she will therefore need to have excellent resolution, the type of telescope that is ideal for her to use is a large reflector located in orbit above the Earth's atmosphere.

It should be noted that the refractor or a radio telescope isn't ideal in this situation as they will not capture the bug weather pattern and doesn't have an excellent resolution like the large reflector.

Answer:

 μ= 0.0375,  kinetic

Explanation:

For this exercise we set a reference system with the x axis parallel to the chord

Y axis  

      N - W = 0

      N = W

X axis

      T - fr = 0

the expression for the friction force is

      fr = μ N

we substitute

       T - μ W = 0

       μ = T / W

we calculate

         μ = 1.5 / 40

        μ= 0.0375

coefficient of kinetic friction

The time taken is twice the time taken to decrease from the initial voltage to one-half initial voltage.

The amount of time it takes for a voltage to decrease from one level to another depends on the characteristics of the system generating the voltage.

Assuming that the voltage is decreasing exponentially over time, the time it takes for a voltage to decrease from one level to another can be calculated using the formula:

\(t = -(ln(Vf/Vi))/λ\)

where t is the time taken, Vi is the initial voltage, Vf is the final voltage, and λ is the decay constant of the system generating the voltage.

If the voltage decreases from one-half its initial voltage to one-fourth its initial voltage, then \(Vi = 1, Vf = 1/4\), and the voltage has decreased by a factor of 2.

Assuming that the decay is exponential, the time it takes to decrease by a factor of 2 is:

\(t = -(ln(1/2))/λ\)

We can simplify this expression using the fact that \(ln(1/2) = -ln(2)\), which gives:

\(t = ln(2)/λ\)

Similarly, the time it takes to decrease by a factor of 4 is:

\(t = -(ln(1/4))/λ = ln(4)/λ = 2ln(2)/λ\)

So, the ratio of the time taken to decrease from one-half initial voltage to one-fourth initial voltage is:

\(t(1/4) / t(1/2) = (2ln(2)/λ) / (ln(2)/λ) = 2\)

Therefore, the time taken to decrease from one-half initial voltage to one-fourth initial voltage is twice the time taken to decrease from the initial voltage to one-half initial voltage.

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The induced magnetic field strength 9.5cm radially outward from the center of the plates is  821.052 Tesla.

We know very well that when a charge is moving with some speed in particular direction then, it will induce a magnetic field around its environment. Only moving charge is able to produce magnetic field, stationary charge only produce electric field.

We know that magnetic field is given by=(μ/2πr)×(q/t) where

μ is called as magnetic field constant,

q is the induced charge in the capacitor,

and r is the distance between the two plates

So, we have r=9.5cm=0.095m,(q/t) =39C/sec and μ=4π×10⁻⁷Tesla-m/A.

So, on putting the above values, we get

=>B=(4π×10⁻⁷ × 39)/2π×0.095

=>B=2×39/ 0.095

=>B=78/0.095

=>B=821.052Tesla.

Hence, induced magnetic field is 821.052Tesla.

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