which of the following best describes how the greenhouse effect works? which of the following best describes how the greenhouse effect works? greenhouse gases absorb infrared light coming from the sun, and this absorbed sunlight heats the lower atmosphere and the surface.

Both the assertion and the reason given are true.If the mass of the object is less, the acceleration produced by the force will be more. Hence, the acceleration produced by the force is directly proportional to the magnitude of the force and inversely proportional to the mass of the object.

The given assertion: When astronauts throw something in space, that object would continue moving in the same direction and with the same speed; and the given reason: The acceleration of an object produced by a net applied force is directly related to the magnitude of the force, and inversely related to the mass of the object are both correct.Astronauts are capable of throwing objects in space because they are beyond Earth's gravity and do not have to deal with any significant air resistance. In the absence of other forces like friction or air resistance, the initial velocity will be conserved, and the object will continue to move with the same speed and direction. The object would continue to move in a straight line with the same speed because no external force acts on it to change the object's state of motion.Newton's second law states that the force of an object is directly proportional to its acceleration, but inversely proportional to its mass. F=ma, where F is force, m is mass, and a is acceleration. Therefore, if the mass of the object is less, the acceleration produced by the force will be more. Hence, the acceleration produced by the force is directly proportional to the magnitude of the force and inversely proportional to the mass of the object.

for such more questions on  force

https://brainly.com/question/12970081

#SPJ8

The sound intensity level at a distance of 1.0 km from the jet engine during takeoff is approximately 94 dB.

Given: initial sound intensity level (L1) = 140 dB, initial distance (d1) = 30 m, and final distance (d2) = 1.0 km (1000 m).
Convert the initial sound intensity level (L1) to sound intensity (I1) using the formula:
  I1 = 10^(L1/10) * 10^(-12) W/m^2
Calculate the sound intensity at the final distance (I2) using the inverse square law:
  I2 = I1 * (d1/d2)^2
Convert the final sound intensity (I2) to the sound intensity level (L2) using the formula:
  L2 = 10 * log10(I2 / 10^(-12))


Hence, By applying the inverse square law and converting between sound intensity levels and intensities, we found that the sound intensity level at a distance of 1.0 km from the jet engine during takeoff is approximately 94 dB.

learn more about inverse square law click here:

https://brainly.com/question/30404562

#SPJ11

A phenocryst is a large crystal found in an igneous rock that is distinct from the finer-grained matrix surrounding it.

If a phenocryst of potassium feldspar is found in an extrusive rock, the rock could be named either a porphyritic rhyolite or a porphyritic obsidian.  Phenocrysts are formed when magma cools slowly beneath the Earth's surface, allowing crystals to grow to a larger size. If this magma is then extruded onto the surface as an extrusive rock, it can form a porphyritic texture, where the larger phenocrysts are embedded in a finer-grained matrix. Rhyolite is an extrusive igneous rock with high silica content, and obsidian is a type of volcanic glass formed from rapidly cooled lava. Both of these rocks can have phenocrysts of potassium feldspar, making them possible names for the rock with the phenocryst.

learn more about phenocryst here:

https://brainly.com/question/28359203

#SPJ11

Answer

a) False

b) True

c) False

d) True

Answer:

A, I think, hope this helps!

Answer:

i think d because some people are talented even though they are suffering

Answer:

30m/s

Explanation:

Use the formula

V= d /t

The amount of work done by the motor is equal to 200 Joules.

Given the following data:

To determine the amount of work done by the motor:

Mathematically, the work done by an object with respect to power and time is given by this formula:

\(Work\;done = \frac{Power}{time}\)

Substituting the given parameters into the formula, we have;

\(Work\;done = \frac{1000}{5}\)

Work done = 200 Joules

Read more on work here: https://brainly.com/question/13818347

(a) Angular frequency is halved by doubling the all parameters, like resistance, inductance and capacitance.

since all parameters are doubled.

we have,

\(R_{2\) is \(2R_{2\)

\(C_{2\)  is \(2C_{2\)

\(L_{2\)  is \(2L_{2\)

Since angular frequency ω is dependent on inductance L and capacitance C

ω= 1/√LC

   1/√4

 = 1/2

so, angular  frequency is halved.

(b) inductive reactance does not change.

Xl= ωL

   = 1/2×2

   =1

(c) Capacitive reactance does not change.

Xc = ωC

     = 1/2×2

    = 1

So, capacitive reactance does not change.

(d) Impedance is doubled.

We have, Z = \(\sqrt{R^{2+(Xl-Xc)^{2}\)

                   where z= impedance

R= Resistance

Xl = inductive reactance

Xc = capacitive reactance

So, after solution Z= 2

So, Impedance is doubled.

To know more about impedance here

brainly.com/question/2263607

#SPJ4

To determine which of the following streams would have the highest streamflow, please provide the list of streams you are comparing.

Streamflow, also known as discharge, is the volume of water moving through a stream at a given time.

Factors affecting streamflow include the size of the stream channel, precipitation, landscape characteristics, and the amount of water entering from upstream.

Summary: To identify the stream with the highest streamflow, please provide the list of streams for comparison. Streamflow is influenced by various factors such as channel size, precipitation, and landscape characteristics.

Learn more about precipitation click here:

https://brainly.com/question/14330965

#SPJ11

The magnitude of the net change of the magnetic field measured at 7 meters on the left-hand side of the current sheet compared to 7 meters on the right-hand side is 0.

To calculate the magnitude of the net change in the magnetic field, we will use the formula for the magnetic field due to an infinite current sheet, which is:

B = (μ₀ * I) / (2 * π * d)

Where B is the magnetic field, μ₀ is the permeability of free space, I is the current, and d is the distance from the current sheet. We will calculate the magnetic field at 7 meters on both sides of the current sheet and find the difference.

Calculate the magnetic field on the left-hand side at 7 meters (B\(^{1}\)).
B\(^{1}\) = (μ₀ * I) / (2 * π * 7)

Calculate the magnetic field on the right-hand side at 7 meters (B\(^{2}\)).
B\(^{2}\) = (μ₀ * I) / (2 * π * 7)

Since both distances are the same, the magnetic fields on both sides will be the same, which means B\(^{1}\) = B\(^{2}\).

Calculate the net change in the magnetic field (ΔB).
ΔB = |B\(^{1}\) - B\(^{2}\)|

Since B\(^{1}\) = B\(^{2}\), the net change in the magnetic field will be 0.

So, at 7 meters on the left-hand side of the current sheet compared to 7 meters on the right-hand side, 0 is the magnitude of the net change of the magnetic field measured.

More on magnetic field: https://brainly.com/question/20351032

#SPJ11

The new angular velocity of the combined system is given by w' = (I₁w)/(I₁ + I₂), where w' is the new angular velocity of the combined system.

I₁ is the moment of inertia of the first object, I₂ is the moment of inertia of the second object, and w is the initial angular velocity of the first object before the second object is added.

This formula is derived from the conservation of angular momentum, which states that the total angular momentum of a system is conserved if no external torque is applied. Initially, the first object has angular momentum I₁w, and after the second object is added, the total angular momentum is (I₁ + I₂)w'.

Since there is no external torque, the total angular momentum is conserved, so we can equate these two expressions and solve for w'.

The result is that the new angular velocity of the combined system is proportional to the initial angular velocity and the moment of inertia of the first object, and inversely proportional to the total moment of inertia of the combined system.

To know more about angular velocity, refer here:

https://brainly.com/question/31479424#

#SPJ11

Answer:

21% i hope im right if not srry :( .

Explanation:

The net force on particle 92 is zero, which means it is in equilibrium and not accelerating.

The electric force between charged particles can be calculated using Coulomb's law, which states that the force is proportional to the product of the charges and inversely proportional to the square of the distance between them.

To find the net force on particle 92, we need to calculate the electric forces acting on it due to the other particles in the line. The force on particle 92 due to particle 91 can be calculated using Coulomb's law:

F_92,1 = kq_1q_2 / r²

            = (9x10⁹ Nm²/C²) * (-1.60x10⁻¹⁹ C) * (1.60x10⁻¹⁹ C) / (0.001 m)²

            = -2.30x10⁻¹⁴ N

The force on particle 92 due to particle 93 can also be calculated using Coulomb's law:

F_92,3 = kq_2q_3 / r²

            = (9x10⁹ Nm²/C²) * (-1.60x10⁻¹⁹ C) * (-1.60x10⁻¹⁹ C) / (0.001 m)²

            = 2.30x10⁻¹⁴ N

Since the forces due to particles 91 and 93 are equal in magnitude but opposite in direction, they cancel out each other. As a result, the net force acting on particle 92 is zero.

To know more about the Particles, here

https://brainly.com/question/29023558

#SPJ4

The magnitude and direction of the acceleration for both the proton and the electron are 8.0 x 10^4 N/kg eastward.

To determine the magnitude and direction of the acceleration of the proton and the electron in the given scenario, we need to consider the forces acting on them.

1. Proton:

The proton has a positive charge, so it experiences a force in the opposite direction to the electric field. The force acting on the proton can be calculated using the equation:

F = q * E

where F is the force, q is the charge, and E is the electric field.

The magnitude of the force on the proton is given by:

|fp| = |q| * |E|

Given:

Charge of proton, q = +e (elementary charge)

Electric field, E = 8.0 x 10^4 N/C

Magnitude of force on the proton:

|fp| = |q| * |E| = e * 8.0 x 10^4 N/C = 8.0 x 10^4 N

According to Newton's second law, F = m * a, where m is the mass and a is the acceleration. Since the mass of the proton remains constant, we can conclude that the magnitude of the proton's acceleration (Ap) is equal to the magnitude of the force on the proton divided by its mass:

|Ap| = |fp| / Mp

2. Electron:

The electron has a negative charge, so it experiences a force in the same direction as the electric field. The force acting on the electron can be calculated using the same equation as above:

|Fe| = |q| * |E|

Given:

Charge of electron, q = -e (elementary charge)

Electric field, E = 8.0 x 10^4 N/C

Magnitude of force on the electron:

|Fe| = |q| * |E| = e * 8.0 x 10^4 N/C = 8.0 x 10^4 N

Similarly, the magnitude of the electron's acceleration (ae) is given by:

|ae| = |Fe| / me

where me is the mass of the electron.

Learn more about acceleration

brainly.com/question/2303856

#SPJ11

Answer:

D. The skier's weight, the force of friction between the skis and snow,

and the force of air resistance

Explanation:

If two objects, such as the the skier, and skies undergo a fast velocity downward, the net force is the total force or newtons which are all components of weight as apparent to mass and gravity, friction, which is the contact force of the skis on the snow, and air resistance which limits the air resistance is the opposite force acting on the object I'm the air relative to the density of air, cross sectional area of the object, the coefficient of drag which is based on the density of the object, it's area, and dynamic air pressure.

Answer:

800 Newtons.

Explanation:

Work is defined as the force applied to an object multiplied by the distance over which the force is applied. The formula for work is W = F x d.

In this case, the force required to lift the box is equal to the work done divided by the distance.

F = W / d

F = 800 J / 5 m

To convert Joules to newtons, we need to use the relation 1 Joule = 1 Newton x Meter

F = 800 N

So the box weighed 800 Newtons.

Answer:

a is constant., v is increasing.

Explanation:

F = ma

F and m are both constant, so a is constant.

v = at, t is increasing, so v is increasing.

The velocity of the object will be equal to numerical multiplication of acceleration and time while  the acceleration of the body is the total applied force divided by mass of the object.

An external force is an agent that has the power to alter the resting or moving condition of a body. It has a direction and a magnitude. The application of force is the location at which force is applied, and the direction in which the force is applied is known as the direction of the force.

A spring balance can be used to calculate the force. Newton(N) is the SI unit of force.

For applying nonzero force, the object will come in motion.

Let, the mass of the body = m.

Force applied on it = F.

Acceleration of the body = a.

And after time t, the velocity of the object become v.

From Newton's 2nd law of motion, we can write,

Applied force = mass × acceleration.

⇒ F = ma

⇒ a = F/m.

And, final velocity will be = acceleration × time = at

Hence, the acceleration of the body is the total applied force divided by mass of the object and velocity of the object after some time will be equal to numerical multiplication of acceleration and time.

Learn more about force here:

https://brainly.com/question/13191643

#SPJ5

Answer:

Answer:

someone you trust the most

Explanation:

Answer:The continuity equation for a compressible liquid is a mathematical expression that relates the changes in fluid density, velocity, and volume to the changes in time. This equation can be written as:

∂ρ/∂t + (ρv)•∇ = 0

where:

ρ = fluid density

v = fluid velocity

∂/∂t = partial derivative with respect to time

∇ = del operator

The continuity equation expresses the principle of mass conservation, stating that the rate of change of fluid density in a fixed volume must be equal to the rate of flow of fluid into or out of that volume. This equation is commonly used in fluid dynamics to study the behavior of liquids and gases in various applications, such as in pipelines, pumps, valves, and compressors.

Explanation:

Answer:

2.90 meters

Explanation:

Distance of speaker 2 =?

Distance of speaker 1 = 1.47m

Velocity = 343

f = 240Hz

For constructive interference to occur:

Difference in distance or path = wavelength

For minimum distance, n = 1

Distance 2 - distance 1 = nλ

Recall λ = v/f

V = Velocity ; f = frequency

Distance 2 - distance 1 = v/f

Distance 2 - 1.47 = (343/240)

Distance 2 = 1.429 + 1.47

Distance 2 = 2.899 meters

Minimum Distance of speaker 2 for their to be constructive interference = 2.90meters

Answer: 0.280

Explanation: trust.

a. all systems work together to stabilize the body

The tangent of the angle at which the items slide equals the coefficient of static friction. The measurement of k can be done in a similar way. To accomplish it, push the upper object while angling it upward. The tangent of that angle equals k when the upper object slides along at a constant speed.

Why is the coefficient of static friction determined using an incline?

By calculating the angle at which the force of gravity overcomes the static friction, you can utilize an item that is inclined to calculate the static coefficient of friction.

How can you tell which way static friction is prevailing?

Static friction pushes in the direction you're trying to travel when you walk (see Figure 2 below). In the absence of friction, the foot would slip backwards as it presses on the ground (like walking on ice).

To know more about static friction visit;

https://brainly.com/question/17169901

#SPJ4

The density of the nucleus is calculated to be 2.82 × 10¹⁴ g/cm³ if the radius of Uranium is 7.0 × 10⁻³ pm and the mass of Uranium is 235 amu.

To find the density of the nucleus in g/cm³, the following formula should be used:-

ρ = (mass of nucleus) / [(4/3) × π × (radius of nucleus)³]

We know that 1 amu = 1.66 × 10⁻²⁴ g

Therefore, we must convert the unit of mass by:-

mass of Uranium = 235 amu × 1.66 × 10⁻²⁴ g/amu = 3.91 × 10⁻²² g

Now, we must convert the unit of radius in cm by:-

radius of Uranium = 7.0 × 10⁻³ pm = 7.0 × 10⁻¹² cm

Now, the density can be calculated by using the following formula:-

Density of nucleus, ρ = (mass of nucleus) / [(4/3) × π × (radius of nucleus)³]

                                   = (3.91 × 10⁻²² g) / [(4/3) × 3.14 × (7.0 × 10⁻¹² cm)³]

                                   = 2.82 × 10¹⁴ g/cm³

Hence, the density of the Uranium nucleus is 2.82 × 10¹⁴ g/cm³.

Learn more about density at https://brainly.com/question/406690

#SPJ11

Equation:  Torque = Force x Distance x sin\((\theta)\). The worst-case scenario used to calculate the maximum lifting capacity of an arm is the maximum applied force at the maximum distance from the pivot point.

The equation for calculating torque is:

Torque (T) = Force (F) × Distance (d) × sin\((\theta)\)

Where:

T is the torque

F is the force applied

d is the perpendicular distance from the axis of rotation to the line of action of the force

\(\theta\) is the angle between the force vector and the lever arm vector

The worst-case scenario used to calculate the maximum lifting capacity of an arm is typically when the force is applied perpendicular to the lever arm, resulting in the maximum torque.

In this scenario, the angle \(\theta\) is 90 degrees, and the sin(90) term simplifies to 1. Therefore, the equation for calculating the maximum torque and, consequently, the maximum lifting capacity becomes:

T = F × d

It's important to note that there may be additional factors to consider in real-life scenarios, such as the distribution of the load, structural integrity, and the dynamic forces involved. Professional engineering analysis should be conducted to ensure accurate calculations and safe lifting practices.

To learn more about torque, refer to the link;

https://brainly.com/question/17512177

#SPJ4

Using mirror's equation, The smallest diameter mirror in which the observer can just see the reflected edge of the coin is 6 cm.

We must compute the size of the mirror's produced image in order to identify the lowest diameter mirror that would allow the spectator to just view the coin's reflected edge.

We must first determine how far the picture is from the mirror. In order to compute this, use the mirror equation:

\(\frac{1}{f} = \frac{1}{d} + \frac{1}{d'}\)

where f is the mirror's focal length, d and d' are the object's and image's distances from the mirror, respectively.

Since the mirror is flat, the focal length is determined by dividing the radius in half. Therefore, we may apply the formula:

\(f = \frac{R}{2}\)

This results from substituting it into the mirror equation:

\(\frac{2}{R} = \frac{1}{3} + \frac{1}{d'}\)

Calculating d':

\(d' = \frac{3R}{ (R-6) (R-6)}\)

The mirror's diameter, D, is equal to 2R. As a result, the minimal diameter of the mirror, at which the spectator can only see the coin's edge reflected, can be calculated as follows:

\(D = 2R = \frac{2d' (R - 6)}{ 3}\)

d' = 9, thus we can condense it to:

D = 18 / 3 = 6 cm

To know more about mirror problems, check out

brainly.com/question/30241851

#SPJ4