Please helpp!!!!!!!!!!!!!!!!!!!!!!

The force F1 is equal and opposite to the downward force thus, F1 is equal to 60 N. The force F2 is inclined to 30 ° from leftward force and it is equal to 38.97 N in magnitude.

Force is an external agent acting on a body to deform it or to change its state of motion or rest. Force is a vector quantity and it is characterised by its magnitude and direction.

If two forces acting on a body from the same directions, then the net force will be the sum of these two forces. If they are acting from opposite directions, they will cancel each other in magnitude.

The force F1 is equal and opposite to the force acting downward. Thus its magnitude is 60 N. The force F2 is inclined to 30 ° from horizontal direction.

F2 = 45 cos 30 = 38.9 N.

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The total of all classes' relative frequencies will always equal: (a) 1

A frequency is a measurement of how frequently a certain value, occurrence, or feature takes place. It is employed in a wide range of disciplines, including science, engineering, mathematics, and statistics. Frequency is often expressed as a number, percentage, or ratio. For example, a frequency chart might show the number of times a particular product was purchased over a certain time period. Frequency can also refer to the number of times a particular wave pattern occurs in a given time period. In physics and engineering, frequency is used to measure the number of cycles per second of a wave or periodic phenomenon. For example, a wave with a frequency of 440 hertz (Hz) has 440 complete cycles per second.

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The temperature the air in the balloon be warmed before the balloon will lift off 71.7°C in order for the balloon to lift off.

To calculate the temperature at which the balloon will lift off, we need to find the temperature at which the density of the air inside the balloon will be less than the density of the air outside. The density of the air inside the balloon depends on the pressure, temperature, and volume of the air.

Let's start by calculating the mass of the air inside the balloon:

mass of air inside the balloon = density of air x volume of the balloon

The density of air at 10.0C is given as 1.244 kg/m^3. Therefore,

mass of air inside the balloon = 1.244 kg/m^3 x 400 m^3 = 497.6 kg

The total mass of the balloon and its cargo is 200 kg. Therefore, the total mass of the balloon and the air inside it will be:

total mass = mass of balloon + mass of air inside the balloon

= 200 kg + 497.6 kg

= 697.6 kg

Now, let's assume that the balloon will lift off when the density of the air inside the balloon is equal to the density of the air outside. Therefore,

density of air inside the balloon = density of air outside

We can express the density of air in terms of the pressure, temperature, and gas constant (R):

density = (pressure x molecular weight) / (R x temperature)

where molecular weight of air = 28.97 g/mol

R = 8.314 J/mol·K (gas constant)

Let's rearrange the equation to solve for the temperature:

temperature = (pressure x molecular weight) / (density x R)

At sea level, the pressure is 101 kPa. Therefore,

temperature = (101 kPa x 28.97 g/mol) / (1.244 kg/m^3 x 8.314 J/mol·K)

= 344.8 K

≈ 71.7°C

Therefore, the air inside the balloon must be warmed to approximately 71.7°C in order for the balloon to lift off.

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Answer:

The spray paint gun is charged positively, which causes every paint particle to become positively charged. Since the paint particles all have the same charge, they repel each other and produce a fine mist of paint which is sprayed towards the wall/car.

Answer:

xerography can i get brainliest

Explanation:

Answer:

Explanation:

Let lift force F be created by propellers at angle of Ф with the horizontal .

The vertical component of this force will balance the weight of helicopter and horizontal component will balance the air resistance .

F sinФ = mg = 2750 x 9.8 = 26950 N

F cosФ = 7510 N

Squaring and adding ,

F² = 26950² + 7510²

= 726302500 + 56400100

= 782702600

F = 27976.82 N .

Answer:

0.407 kg

Explanation:

Given :

Coefficient of static friction, µs = 0.276

Force, F = 1.1 N

Using the relation :

μ = F/N

N = normal reaction ; N = mg

μ = F / mg

g = acceleration due to gravity = 9.8 m/s²

0.276 = 1.1 / m * 9.8

0.276 = 1.1 / 9.8m

0.276 * 9.8m = 1.1

2.7048m = 1.1

m = 1.1 / 2.7048

m = 0.4066844

Mass = 0.407 kg

Answer: 2m/s

Explanation:

V avg = Displacement / time

Displacement is 8

Time is 4

V avg = 2

After solving the equation This speed is relativistic since it is greater than 0.1 c.

Relativistic refers to the branch of physics that studies the effects of time, space and motion when they are observed in relation to the speed of light.

a) The wavelength of the incident photon can be calculated using the equation λ' = (1 + 10.0%) * λ, where λ is the wavelength of the incident photon and λ' is the wavelength of the outgoing photon. Solving for λ yields λ = 0.909 * λ'.

b) To calculate the kinetic energy gained by the proton, we first need to calculate the momentum of the incident and outgoing photon. This can be done using the equation p = h/λ, where h is Planck's constant and λ is the wavelength of the photon. We have already calculated λ for the incident photon in part a), so we can use this value to calculate the momentum of the incident and outgoing photons. The change in momentum for the proton is then equal to the difference between the momentum of the incident and the outgoing photon. Applying the equation Δp = m*Δv, we can then calculate the change in kinetic energy for the proton.

c) The resulting speed of the proton can be calculated using the equation v = √(2*ΔE/m), where E is the change in kinetic energy we calculated in part b) and m is the mass of the proton. Plugging in our values gives us v = 0.232 c. This speed is relativistic since it is greater than 0.1 c.

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\( \sf{• \: Power \: (P) = 60 \: w}\)

\( \sf{• \: Resistance \: (R) = 880 \: Ω}\)

\( \\ \)

\( \sf• \: The \: Current \: (I).\)

\( \\ \)

\( \huge\bf{ \underline{ Solution :- }}\)

\( \sf We \: know \: that,\)

\( \bf \red {\bigstar{ \: P = I^{2} R}}\)

\( \rightarrow \sf 60 = I^{2} \times 880\)

\( \rightarrow \sf \frac{60}{880} = I^{2} \)

\( \rightarrow \sf I^{2} = 0.0681\)

\( \rightarrow \sf I = \sqrt{0.0681}\)

\( \rightarrow \sf I = 0.261 \: \: (approx.)\)

\( \\ \)

\(\bf The \: \: value \: \: of \: \: I \: \: is \: \: 0.261 \: \: Amps. \: \: (approx.)\)

Answer:

16kg*m/s west

Explanation:

P=M*V

Momentum= Mass time velocity, plug it into the formula,

M is 4 and V is 4, 4*4=16, and since the object is moving west its going to be west.

basically saying in simpler terms,

16=4*4

Answer:

The distance traveled by the apply after being released is 127.45 m.

Explanation:

The given parameters;

time of motion of the apple, t = 5.1 s

initial velocity of the apple, u = 0

The distance traveled by the apply is calculated by applying second kinematic equation as shown below.

Assuming downward motion to be positive.

ok oh if i need any answers just asking i'll help you

20.94 m is the horizontal distance R' from a point directly below the center of the loop to the impact point.

When the car leaves the track, it moves along a straight line tangent to the loop, forming a tangent. From the given information, it is observed that the radius of the loop is 20 m and the speed is 10 m/s. In the given diagram, θ represents the angle made by the line joining the center of the circle and the point where the car leaves the track. Let’s answer the given questions.

Step 1: Find the angle θ

Using the formula,v² = rg

From the given information,N² = rgN²

= 20g(g

= 9.8 m/s²)θ

= sin⁻¹(N²/rg)θ

= sin⁻¹((10)²/20(9.8))θ

= 49.03°

Step 2: Find the horizontal distance R

'The horizontal distance from a point directly below the center of the loop to the impact point can be found using the formula

,R' = (2r + h) tan(θ/2)

where h is the height of the center of the loop from the ground.

R' = (2 × 20 + 0.6) tan(49.03/2)

R' = (40 + 0.6) tan(24.51)

R' = (40.6) (0.516)

R' = 20.94 m

Therefore, the angle θ when the car leaves the track is 49.03° and the horizontal distance R' from a point directly below the center of the loop to the impact point is 20.94 m.

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(a) The laptop left your friend's hand at an angle of approximately 45 degrees.

(b) The laptop left your friend's hand with a speed of approximately 7.85 m/s.

(c) The highest point reached by the laptop is approximately 1.23 meters above the starting point.

To determine the answers, we can use the principles of projectile motion. The key variables we need are the initial velocity (speed) and launch angle. The time of flight can also be calculated, which helps us find the highest point reached by the laptop.

(a) To find the angle, we can use the fact that the horizontal distance and time of flight are related. The horizontal distance traveled by the laptop is 8 meters, and the time of flight is 0.4 seconds. The equation for horizontal distance is given by:

Horizontal distance = Initial velocity * cos(angle) * time

Substituting the known values, we have:

8 = Initial velocity * cos(angle) * 0.4

Solving for the angle, we get:

cos(angle) = 8 / (Initial velocity * 0.4)

Taking the inverse cosine (arccos) of both sides, we find:

angle = arccos(8 / (Initial velocity * 0.4))

Substituting the known values, we can calculate the angle to be approximately 45 degrees.

(b) To find the initial velocity, we can use the vertical distance traveled by the laptop. Since the laptop was thrown and caught at the same height, the vertical displacement is zero. The equation for vertical displacement is given by:

Vertical displacement = (Initial velocity * sin(angle) * time) - (0.5 * g * time^2)

Since the vertical displacement is zero, we can set the equation equal to zero:

0 = (Initial velocity * sin(angle) * 0.4) - (0.5 * 9.8 * 0.4^2)

Simplifying and solving for the initial velocity, we find:

Initial velocity = (0.5 * 9.8 * 0.4^2) / (0.4 * sin(angle))

Substituting the known values and the angle calculated in part (a), we can determine the initial velocity to be approximately 7.85 m/s.

(c) To find the highest point reached by the laptop, we need to calculate the vertical displacement at the midpoint of the trajectory. Since the total time of flight is 0.4 seconds, the midpoint will be at t = 0.2 seconds. The equation for vertical displacement at a given time is:

Vertical displacement = (Initial velocity * sin(angle) * time) - (0.5 * g * time^2)

Substituting the known values and t = 0.2 seconds, we can find the vertical displacement:

Vertical displacement = (7.85 * sin(45) * 0.2) - (0.5 * 9.8 * 0.2^2)

Simplifying, we find the vertical displacement to be approximately 1.23 meters above the starting point.

The laptop left your friend's hand at an angle of approximately 45 degrees and with a speed of approximately 7.85 m/s. It reached a maximum height of approximately 1.23 meters above the starting point. These calculations were based on the principles of projectile motion and the given information of the distance, time of flight, and height.

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Answer:

The chemistries and technologies behind coin cells vary. Some are alkaline, others are lithium. Alkaline coin cell batteries have a nominal voltage of 1.5V. Lithium coin cell batteries, on the other hand, have a nominal voltage of 3V.

Inform him that he should be more cautious because his work environment could have resulted in an accident. Inform him that you have cleaned up and that he owes you a favour.

The setting, social features, and physical conditions in which you perform your job are referred to as your work environment. These factors can have an impact on employee happiness, workplace relationships, collaboration, efficiency, and health.

A workplace culture is the set of shared values, belief systems, attitudes, and assumptions that employees share. Individual upbringing, as well as social and cultural context, influence this.

Taking care of the workplace environment boosts productivity, aids in talent retention, and, most importantly, is beneficial to the company's overall mental health. No job is perfect, not even those with an amazing office, a high salary, or entirely vocational tasks.

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The thermometer measures the starting temperature as,

The temperature required for the boiling the water is

(a). The temperature requires to boil is,

Answer:

(a) h = 5.1 m

(b) v = 14.13 m/s

Explanation:

(a)

We will use the law of conservation of energy. For this situation it states that:

Loss in Potential Energy of Sphere = Gain in Kinetic Energy of the Sphere

mgh = (1/2)mv²

h = v²/2g   --------------- equation (1)

where,

h = height = ?

v = speed at lowest point = 10 m/s

g = 9.8 m/s²

Therefore,

h = (10 m/s)²/(2)(9.8 m/s²)

h = 5.1 m

(b)

using the equation (1)

h = v²/2g

v = √2gh

where,

v = velocity = ?

g = 9.8 m/s²

h = height = 2(5.1 m) = 10.2 m

Therefore,

v = √[2(9.8 m/s²)(10.2 m)]

v = 14.13 m/s

The height from which the sphere was released is 5.1 m

When the height is doubled, the speed of the sphere becomes 14.14 m/s.

The given parameters:

The height from which the sphere was released is calculated as follows;

\(P.E = K.E\\\\mgh = \frac{1}{2}mv^2\\\\gh = \frac{1}{2}v^2\\\\h = \frac{v^2}{2g}\\\\h = \frac{(10)^2}{2(9.8)} \\\\h = 5.1 \ m\)

When the height is doubled, the speed of the sphere becomes;

\(h = \frac{v^2}{2g} \\\\v^2 = 2gh\\\\v = \sqrt{2gh} \\\\v = \sqrt{2 \times 9.8 \times (2 \times 5.1)} \\\\v = 14.14 \ m/s\)

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in a transverse wave, the direction of propagation is perpendicular to the oscillation direction. This statement is true.

It is true that in a transverse wave, the direction of propagation is perpendicular to the oscillation direction. This is due to the nature of transverse waves and the way they propagate energy through a medium.

In a transverse wave, the particles of the medium oscillate perpendicular to the direction in which the wave is traveling. For example, in a wave on a string, if the wave is moving horizontally to the right, the particles of the string move up and down perpendicular to the rightward direction of the wave.

This perpendicular motion of the particles is a result of the restoring forces acting on them. In transverse waves, the oscillation of the particles is caused by forces that pull the particles back toward their equilibrium positions. These forces are perpendicular to the direction of propagation of the wave.

The perpendicular relationship between the oscillation direction and the direction of propagation allows the wave to transfer energy through the medium. As the particles oscillate, they transfer their energy to neighboring particles, causing a wave-like motion to propagate through the medium.

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If a gas and a liquid undergoes the same amount of heating, the gas will expand many times more than the liquid. This is because gases have lower densities and occupy more space than liquids, which allows them to expand more readily when heated. The amount of expansion will depend on the specific gas and liquid being considered, as well as the conditions under which they are being heated.

I hope that you liked my answers

Answer:

If a gas and a liquid undergo the same amount of heating, the gas will generally expand significantly more than the liquid. This is because gases have much lower density and higher thermal expansion coefficients than liquids, and therefore, they expand much more for a given temperature change.

The exact amount of expansion depends on the specific gas and liquid, the temperature change, and the pressure conditions, but it is typically several orders of magnitude greater for a gas than for a liquid. This difference in expansion behavior is one of the key characteristics of gases and liquids, and it has important implications for a variety of scientific and engineering applications.

Explanation:

if you kinda confuse just tell me

ALLEN

Answer: A.

Explanation: I’m pretty sure that’s it, but I’m not 100% sure. But that’s the best option.

The Sun's interior has three regions: the core where nuclear fusion occurs, the radiative zone where energy bounces unpredictably, and the convective zone where energy moves through large-scale movements of matter.

The Sun is a massive, glowing ball of plasma, and its interior is divided into three main regions: the core, the radiative zone, and the convective zone. Each of these regions plays a crucial role in the Sun's energy production and the dynamics of its outer layers.

The core is the central region of the Sun, where temperatures and pressures are incredibly high. Here, nuclear fusion takes place, as hydrogen atoms combine to form helium, releasing vast amounts of energy in the process. This process is what powers the Sun and allows it to shine.

Surrounding the core is the radiative zone, which is a dense layer of matter that absorbs, emits, and deflects energy in unpredictable directions. The energy created in the core takes hundreds of thousands of years to move through this region as it bounces from one atom to another.

Finally, the outermost region of the Sun's interior is the convective zone, where energy moves through the plasma via large-scale movements of matter. Energy generated in the core travels to the surface of the Sun in the form of photons, which are absorbed and re-emitted as the plasma churns and convects. This process ultimately results in the energy radiating out from the Sun's surface and into space at the speed of light, sustaining life on Earth and fueling the dynamics of the entire solar system.

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Answer:

A. True it's right solids have a definite shape and volume.

To determine the density of the rock divide its mass by the volume. And for determining the volume use Archimedes' principle.

An object at rest in a liquid experiences an upward force, called buoyancy, equal to the weight of the liquid it displaces. When the body is completely submerged, the volume of liquid displaced equals the volume of the body.

For the given case:

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The average acceleration of the helicopter, given that it changes its velocity from 22.0 m/s to 10.0 m/s is –1.5 m/s²

We understood that acceleration is defined as the change in velocity with time i.e

a = (v – u) / t

With the above formula, we can determine the average acceleration of the helicopter. Details below

The following data were obtained from the question:

a = (10 – 22) / 8

a = –12 / 8

a = –1.5 m/s²

Thus, we can conclude that the average acceleration is –1.5 m/s²

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Answer:

imma have to come back to you on that one

Answer:

The Sun is at the center of the solar system and the planets move around it.

Explanation:pluto/edmentum

Answer:

Explanation:

I FOUND YOUUU

Answer:

300,000

Explanation:

right here dad_0 ;) u got  snap?

Answer:

the magnitude of the car's acceleration is 0.2333 m/s^2.

Explanation:

To find the magnitude of the car's acceleration, we can use the formula:

a = F/m

where a is the acceleration, F is the net force acting on the car, and m is the mass of the car.

In this problem, F = 10.5 N and m = 45 kg. Substituting these values into the formula, we get:

a = 10.5 N / 45 kg

a = 0.2333 m/s^2

Therefore, the magnitude of the car's acceleration is 0.2333 m/s^2.

An increasingly competitive environment, quick technological advancements, the need for a more collaborative organisational culture, and a focus on enhancing financial performance were some of the environmental pressures and forces that compelled Stringer to alter Sony's balance between centralising and decentralising authority.

The competitive environment, technological breakthroughs, organisational culture, and financial performance are the four primary categories that may be used to categorise the external pressures and causes that caused Stringer to alter the balance between centralising and decentralising authority at Sony.
1. Competitive Landscape: Sony's dominance in the industry was under threat from rivals like Apple, Samsung, and Microsoft as the worldwide market became more competitive. In order to maintain responsiveness and agility in the face of this fierce competition, Stringer had to reassess the balance of authority.
2. Technological Advancements: Sony has to innovate continually to be relevant in the era of rapid technological advancement and the digital revolution. Stringer had to decentralise control in order to encourage creativity, allowing staff members to assume more responsibility and participate in the creation of new goods and services.
3. Organizational Culture: Collaboration and synergies were hampered by Sony's conventional culture, which was characterised by siloed divisions and internal competitiveness. Stringer understood that centralising some decision-making processes would aid in dismantling organisational divisions, fostering collaboration, and creating a more cohesive workplace.
4. Financial Performance: Sony's management structure needed to be significantly changed as a result of its poor financial performance and shrinking market position. By balancing centralised control to maintain strategy coherence and decentralising authority to empower people, boosting efficiency and innovation, Stringer hoped to improve financial performance.
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