what is the answer to this?

Answer:

Explanation:

The mass of the object can be found by using the formula

\(m = \frac{f}{a} \\ \)

f is the force

a is the acceleration

From the question we have

\(m = \frac{6}{12} = \frac{1}{2} \\ \)

We have the final answer as

Hope this helps you

m = f/a

6 / 12 = 0.5

answer - 0.5

Answer: there is no sound in space

Explanation: there is no vacum in space for sound to travel, therfore no sound waves

Answer: OLEDs

Explanation:

The nanotechnology uses the surface of the carbon materials to generate the electricity. The evaporation of water on the surface of carbon materials helps in generation of electrical energy due to generation of thermal energy.

OLEDs can be defined as solid-state devices that comprises of organic molecules like carbon that will create electricity by exposing a surface for generation of thermal energy.

Answer:

4m/s^2

Explanation:

using the formula a = (v_f - v_i) / Δt we can use final velocity, initial velocity, and accel. time to calculate the accel. rate

In this problem it would be a=(26m/s - 10m/s) / 4s

our answer would be 4m/s^2

Answer:

B,A,A

Explanation:

Answer:

Other guy is correct b,a,a

Explanation:

In order to get a stone slab to move, one would have to apply force to it. This can be done in a number of ways, depending on the situation. Here are a few possible laws that could be proposed for moving a stone slab:1. Newton's first law of motion: This law states that an object at rest will stay at rest unless acted upon by an external force. Therefore, to move a stone slab, one would need to apply a force to it.

For such more question on Newton's second law

https://brainly.com/question/25545050

#SPJ8

Answer:

The main force in play here is weight W, or m*g (where m is Mass and g is Gravity) that make up the main force acting downwards. This could also be referred to as the normal force.

Explanation:

From what we can see the plastic strip is at a certain angle. To which other forces, such as: friction, pull and the ones mentioned above come into play in this question.

Answer:

1200 N

Explanation:

First, we need to calculate how much time the force was applied. If the stone traveled at 20.0m/s and made a 0.20 cm deep dent, the time is equal to

Where the distance is 0.20 cm = 0.0020 m and the average speed can be calculated as:

Therefore, the time is equal to

Then, the force can be calculated using the following equation for impulse

Where m is the mass, v is the speed and t is the time, so replacing m = 0.012 kg, v = 20 m/s and t = 0.0001 s, we get

So, the average force was 1200 N

During autumn, the storm travels at a speed of 20 m/s, then the average force the car has to exert to stop the damaging hail storm is 1200 N.

A force in physics is an effect that has the ability to modify an object's motion. A bulk object's velocity can vary, or accelerate, as a result of a force. Intuitively, a push or a pull can be used to describe force. Being a vector quantity, a force also has magnitude and direction. The SI unit of newton is used to measure it (N). The letter F symbolizes for force.

As per Newton's second law's original formulation, an object's net force is equal to the speed at which momentum is changing over time.

According to the given information in the question,

Speed, s= 20 m/s

Average speed, s = Distance/Time

s = [v(i) + v(f)] / 2

s = (20 + 0)/2

s = 10 m/s

Now calculate the time,

Time, t = 0.0020/10

t = 0.0002 seconds.

Use the equation for impulse,

f × t = mv

⇒f = mv/t

f= (0.012 × 20)/0.0002

f = 1200 N

Therefore, the force applied is 1200 N.

To know more about Force:

https://brainly.com/question/13191643

#SPJ2

Answer:

Vector, in physics, a quantity that has both magnitude and direction. It is typically represented by an arrow whose direction is the same as that of the quantity and whose length is proportional to the quantity's magnitude. Although a vector has magnitude and direction, it does not have position

Answer:

8.6348020882604e-23

Explanation:

Two locomotives with a speed of 150 km/h each, reach the other in: 1.9 min

The formula of reach time and procedure we will use to solve this problem is:

Tr = x/(v2+v1)

Where:

Information about the problem:

Applying the reach time formula we get:

Tr = x/(v2+v1)

Tr =  9.5 km/(150 km/h + 150 km/h)

Tr = 9.5 km/(300 km/h)

Tr = 0.032 h

By converting the time units from (h) to (min) we have:

0.032 h * (60 min / 1h) = 1.9 min

It is a physical quantity that indicates the displacement of a mobile per unit of time, it is expressed in units of distance per time, for example (miles/h, km/h).

Learn more about velocity at: brainly.com/question/3004254

#SPJ4

Answer:

The total she has to pay is R8500 plus the 5% interest.

PLEASE ADD BRAINEEST

The initial current is 2A, resistance is 2Ω, and inductance is 0.008H. The time for current decay to 1A is found to be around 2.1ms using the natural logarithm.

The current in an LR circuit can be modeled by the equation:

\(I(t) = I0e^{(-Rt/L)}\)

where I(t) is the current at time t, I0 is the initial current, R is the resistance, L is the inductance, and e is the mathematical constant e.

We are given that the initial current is 2.0 A, the resistance is 2 Ω, and the inductance is 8.0 mH (or 0.008 H). We want to find the time it takes for the current to decay to 1.0 A.

Substituting the given values into the equation, we get:

\(1.0 A = 2.0 A \times e^{(-2\Omega t/0.008H)}\)

Simplifying, we can divide both sides by 2.0 A and take the natural logarithm of both sides:

\(ln(0.5) = -2\Omega t/0.008H\)

Solving for t, we get:

\(t = -0.008H \times ln(0.5) / 2\Omega\)

Plugging in the given values, we get:

\(t \approx 0.0021 s\) or 2.1 ms

Therefore, it will take approximately 2.1 ms for the current to decay to 1.0 A.

In an LR circuit, the inductor resists changes in current, so when the switch is thrown and the current starts to decay, the inductor generates a back EMF that opposes the change in current. This causes the current to decay exponentially over time, as described by the above equation.

To know more about resistance refer here:

https://brainly.com/question/30155623#

#SPJ11

Answer: mass is both a property of a physical body and a measure of its resistance to acceleration when a net force is applied. An object's mass also determines the strength of its gravitational attraction to other bodies. weight is the weight of an object is the force acting on the object due to gravity. and gravity is a natural phenomenon by which all things with mass or energy—including planets, stars, galaxies, and even light—are brought toward one another.

Explanation: and that is mass weight and gravity

Answer:

\( { \tt{(1.54 \times {10}^{6}) + (6.15 \times {10}^{6}) }} \\ = { \tt{(1.54 + 6.15) \times {10}^{6} }} \\ = { \tt{7.69 \times {10}^{6} }}\)

According to the universal law of gravitation, the force due to gravity is directly proportional to the product of the masses of two objects and inversely proportional to the square of the distance between them.

The force of attraction between two objects caused by their masses is described by the universal law of gravitation, a physical principle put forth by Sir Isaac Newton. This law states that every particle of matter attracts every other particle in the cosmos with a force that is directly proportional to the product of their masses and inversely proportional to the square of their separation.

The equation provides the law's mathematical expression:

F = G * (m1 * m2) / r^2

Where r is the distance between the centers of the two objects, m1 and m2 are their masses, and G is the gravitational constant.

The gravitational constant is a fundamental constant of nature that has a value of approximately 6.674 x 10^-11 Nm^2/kg^2.

To know more about universal law of gravitation, visit:

https://brainly.com/question/11760568

#SPJ4

Collected data plays a crucial role in evaluating whether the criteria for success have been met. By analyzing the collected data, one can assess the progress made towards achieving the desired goals and determine if the criteria have been fulfilled.

Data provides an objective measure of performance or outcomes, allowing for an evidence-based assessment of success. It helps to quantify and track key metrics or indicators related to the criteria for success. By comparing the actual data with the predetermined benchmarks or targets, one can determine if the criteria have been met or if further improvements are required.

Data analysis also enables the identification of trends, patterns, and correlations, providing insights into the factors influencing success. It helps in identifying areas of strength and areas that need improvement. Additionally, data can be used for comparative analysis, benchmarking against previous periods or similar projects, to gain a broader perspective on success.

In summary, collected data provides an objective basis for evaluating progress and success by comparing actual performance against predetermined criteria, identifying areas of improvement, and gaining insights for future decision-making.

Know more about evidence-based assessment here:

https://brainly.com/question/31079603

#SPJ8

Answer:

1. Is a different pitch, has a different speed

2. is brighter or dimmer, has a different energy

Explanation:

The amount of contextual similarity between the retrieval attempt and the initial encoding phase predicts likelihood of remembering versus forgetting. This refers to the encoding specificity hypothesis

The likelihood of remembering versus forgetting is predicted by the degree of contextual similarity between the retrieval attempt and the initial encoding phase. Encoding specificity hypothesis is being discussed here. According to the encoding specificity theory, the similarity between the contexts during the initial encoding phase and the attempt at retrieval affects how likely it is that information will be remembered.

This theory states that memory retrieval is more successful when the environmental context or retrieval cues coincide with or are similar to those present during the encoding of the material. This idea emphasises the value of environmental signals in aiding memory retrieval and determining whether or not information will likely be remembered or forgotten.

Read more about hypothesis on:

https://brainly.com/question/29576929

#SPJ4

The particle with a velocity of 4 m/s and with an acceleration 10 m/s2 in a sec will travel a distance of: 9 m

The formula for Uniformly varied rectilinear motion (UVRM) and procedure we will use to solve this exercise is:

x = (vi* t) + (a * t²)/2

Where:

Information about the problem:

Applying the distance formula, we have:

x = (vi* t) + (a * t²)/2

x = (4 m/s * 1 s) + (10 m/s² * (1 s)²)/2

x = 4 m + (10 m/s² * 1 s²)/2

x = 4 m + (10 m)/2

x = 4 m + 5 m

x = 9 m

It is a physical quantity that indicates the variation of velocity as a function of time, it is expressed in units of distance per time squared e.g.: m/sec2 ; km/h2

Learn more about acceleration at: brainly.com/question/14344386

#SPJ4

Answer:

The mechanical advantage (M.A) of a real machine is always less than its velocity ratio(V.R) because mechanical advantage decreases due to the friction and weight of moving parts of the machine whereas the velocity ratio remains constant.

Answer:

B. They will attract one another

Explanation:

When two pieces of silk that have acquired an electric charge are brought close together, they will either attract or repel each other, depending on the nature of the charges.

If the two pieces of silk have the same type of charge (both positive or both negative), they will repel each other. This is because like charges repel each other.

On the other hand, if the two pieces of silk have opposite charges (one positive and one negative), they will attract each other. This is because opposite charges attract each other.

Therefore, the answer is B. They will attract one another if they have opposite charges, and they will repel each other if they have the same charge.

A massive body will accelerate or alter its velocity at a constant rate when a constant force is applied to it, according to Newton's second law. In the simplest case, when a force is applied to an object at rest, it accelerates in the force's direction.

Acceleration is the term used in mechanics to describe the pace at which the velocity of an object varies over time. Acceleration is a vector quantity (in that they have magnitude and direction). The direction of an object's acceleration is determined by the direction of the net force acting on it.

It is a vector quantity with an SI unit is m/s² and the dimension formula is LT⁻².

To get more information about Acceleration :

https://brainly.com/question/5221002

#SPJ1

An object's motion is altered by a net force; the larger the net force, the higher the acceleration. To accelerate at the same rate as less massive objects, heavier net forces are needed.

According to Newton's second law, a massive body will accelerate, or change its velocity, at a constant rate, when a constant force is applied to it. In the most basic scenario, when a force is applied to an object at rest, it accelerates in the force's direction. However, depending on the force's direction and the directions that the object, as well as reference frame, as well as reference frame, are moving in relation to one another, a body that is already moving or being observed from a shifting inertial reference frame may appear to accelerate, decelerate, or change direction.

Learn more about Acceleration;

https://brainly.com/question/24542321

Answer:

Explanation:

actually , the acceleration due to gravity depends on the distance from it's center of the earth.

when the distance from the earth increases , the acceleration due to gravity decreases as a result . The value of gravity in space is zero.

Answer: The velocity of released alpha particle is \(1.127\times 10^7m/s\)

Explanation:

According to law of conservation of momentum, momentum can neither be created nor be destroyed until and unless, an external force is applied.

For a system:

\(m_1v_1=m_2v_2\)

where,

\(m_1\text{ and }v_1\) = Initial mass and velocity

\(m_2\text{ and }v_2\) = Final mass and velocity

We are given:

\(m_1=238u\\v_1=1.895\times 10^{5}m/s\\m_2=4u\text{ (Mass of }\alpha \text{ -particle)}\\v_2=?m/s\)

Putting values in above equation, we get:

\(238\times 1.895\times 10^5=4\times v_2\\\\v_2=\frac{238\times 1.895\times 10^5}{4}=1.127\times 10^7m/s\)

Hence, the velocity of released alpha particle is \(1.127\times 10^7m/s\)

Answer: Cross-cutting features are always younger than the surrounding rock.

When material erodes before sediment is deposited on it, a geologic gap results.

Explanation:

The options include:

1. An unconformity is created when lava pours out on Earth’s surface.

2. Faults are the result of volcanic activity.

3. Intrusions and extrusions are sedimentary formations.

4. Cross-cutting features are always younger than the surrounding rock.

5. When material erodes before sediment is deposited on it, a geologic gap results.

The law of superposition simply states that when there is a layers of rocks, we would see that the younger layers will lie and be on top of the layers that are older.

Other tools that can help scientist with relative dating are:

• Cross-cutting features are always younger than the surrounding rock.

• When material erodes before sediment is deposited on it, a geologic gap results.

Explanation:

It's on Edge

All components of the velocity vector are zero for t = 0, the particle is at rest for t = 0.

For what values of t is the particle at rest?

The position of a particle moving in the xy-plane is given by the parametric equations r = (3t) and v = (2t, 3t², 12t). To find for what values of t the particle is at rest, we need to find when the velocity vector (v) is equal to zero.

The velocity vector v is given by (2t, 3t², 12t). For the particle to be at rest, all components of the velocity vector must be equal to zero.

1. For the x-component (2t) to be zero: 2t = 0. Solving for t, we get t = 0.

2. For the y-component (3t²) to be zero: 3t² = 0. Solving for t, we get t = 0.

3. For the z-component (12t) to be zero: 12t = 0. Solving for t, we get t = 0.

Since all components of the velocity vector are zero for t = 0, the particle is at rest for t = 0.

Learn more about parametric equations.

brainly.com/question/28537985

#SPJ11

The scalar components R and R₂ of the force R along the nonrectangular axes a and b are determined using given information. The orthogonal projection Pa of R onto axis a is also calculated.

Given information:

Magnitude of force R = 810 N

Angle between R and axis a = 117°

Angle between R and axis b = 25°

To find the scalar components R and R₂, we can use trigonometry. Let's denote the angle between R and the x-axis as θ. We can express R in terms of its components as follows:

R = R₁ + R₂

Where R₁ is the component of R along axis a, and R₂ is the component of R along axis b.

Using trigonometry, we can determine the values of R₁ and R₂ as follows:

R₁ = R cos(θ)

R₂ = R sin(θ)

To find the angle θ, we subtract the given angles between R and axes a and b from 90° (since axis a and b are nonrectangular):

θ = 90° - 117° = -27°

Now we can calculate R₁ and R₂ using the given magnitude of R and the calculated angle θ:

R₁ = 810 N cos(-27°)

R₂ = 810 N sin(-27°)

Finally, to determine the orthogonal projection Pa of R onto axis a, we use the formula:

Pa = R₁ = 810 N cos(-27°)

Substituting the values into the equations, we can calculate the numerical values of R₁, R₂, and Pa.

To learn more about force refer:

https://brainly.com/question/12970081

#SPJ11

a. The current in the resistor is 17.3 mA

b. The power in the resistor is 196.9 mW

Current is the rate of flow of electric charge

Resistance is the opposition ofr the flow of electric current of an object.

Power is the rate at which work is done.

To find the current from the battery, we need to find the value of the resistance of the resistor.

Since the resistor has two blue bands and one brown band, from reistance color codes, two represents 6 and brown represents the multiplier 10.

So, the resistance value is 66 × 10 Ω = 660 Ω

Now electric current is given by Ohm's law which is V = IR where

Naking I subject of the formula, we have that

I = V/R

Since

Substituting these into the equation, we have that

I = V/R

I = 11.4 V/660 Ω

= 0.01727

≅ 0.0173 A

= 17.3 × 10⁻³ A

= 17.3 mA

So, the current is 17.3 mA

The power in the reistor is given by P = IV where

Given that

Substituting the values of the variables into the equation, we have that

P = IV

= 17.3 mA × 11.4 V

= 196.9 mW

So, the power is 196.9 mW

Learn more about eletric current here:

https://brainly.com/question/30033550

#SPJ1