what is the mass of an object that is accelerating at 15 m/s when a force of 2000N is exerted

Answer:

A 25-N force acts on the left side of the marble at the same time as a 25-N force acts on the right side of the marble.

Explanation:

just took test

A 25-N force acts on the left side of the marble at the same time as a 25-N force acts on the right side of the marble.

A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.

Balanced force is when the net force applied on the object is zero than said to be balanced.

A 25-N force acts on the left side of the marble at the same time as a 25-N force acts on the right side of the marble.

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The object of mass of 10.3 kg subjected to a non-zero net force moves with an acceleration of 1.3 m/s², so the net force acting on the object is 13.39 N.

According to physics, a force is an effect that has the power to change an object's motion. A force can cause a massed item to accelerate or modify its velocity. A push or a pull is a straightforward method to explain force.

It is a scalar quantity with the Newton as its SI unit.

According to the question, the given values are :

Mass, m = 10.3 kg

Acceleration, a = 1.3 m/s²

Force = mass × Acceleration

Now, substitute the given values :

Force, F = 10.3 kg × 1.3 m/s²

F = 13.39 N.

Hence, the net force on the object is 13.39 N.

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Answer:

Thermal expansion causes the bar to expand in length (also, thermal contraction causes the bar to shrink). Having the meter measured in this way allows for consistency and can be easily converted.

Explanation:

Answer:

The decay constant, or "lambda" (λ), is the rate at which a radioactive isotope decays. It is usually measured in units of inverse time, such as seconds. In this case, the decay constant can be calculated as follows:

16:42

λ = (ln(2)/3.57 x 106) x (5.78 x 1017) = 0.

Explanation:

Answer:

320 J

Explanation:

From the question,

KE = 1/2mv².................. Equation 1

Where KE = Kinetic Energy, m = mass of the rock, v = velocity of the rock

Given: m = 40 kg, v = 4m/s

Substitute these values into equation 1

KE = 1/2(40)(4²)

KE = 20×16

KE = 320 J

Hence the kinetic energy of the rock is 320 J

Answer:

Mass.

Explanation:

I took the quiz and got the answer right

Answer: Cultures do have distinctive learning style patterns, but the great variation among individuals within groups means that educators must use diverse teaching strategies with all students. like, Chinese culture and Chinese learners, Adult learning stages and learning styles

Explanation:  hope this helps☜(ﾟヮﾟ☜)

\(\huge{\mathbb{\tt { QUESTION↓}}}\)

In the early solar system,comets that struck earth may have brought in

\(\color{green}{\tt{O} \: \: \color{black}{\tt {A.water}}}\)

\(\color{green}{\tt{O} \: \: \color{black}{\tt {B.Advanced Life}}}\)

\(\color{green}{\tt{O} \: \: \color{black}{\tt {C.Plankton}}}\)

\(\color{green}{\tt{O} \: \: \color{black}{\tt {D. All \: of \: the \: above}}}\)

\(\huge{\mathbb{\tt { ANSWER↓}}}\)

\(\color{red}{\tt {D. \: All \: of \: the \: above}}\)

\(\color{black}{\tt {because \: the \: true \: answer \: is \: comet}}\)

\({\boxed{\boxed{\tt{WHAT \: IS \: COMET?}}}}\)

\(\color{black}{\tt{A \: comet \: is \: an \: icy, \: small \: Solar \: System \: body}}\)

\(\color{black}{\tt { that, \: when \: passing \: clos \: e to}}\)

\( \color{black}{\tt {the \: Sun, \: warms \: and \: begins \: to \: release}}\)

\(\color{black}{\tt { gases, \: a \: process \: that \: is \: called \: outgassing. }}\)

\(\color{black}{\tt{This \: produces \: a \: visible \: atmosphere \: or \: coma,}}\)

\(\color{black}{\tt{and \: sometimes \: also \: a \: tail}}\)

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Answer: I don't understand if it is a question

Explanation:

More than 700 people in the United States have been infected with monkeypox virus American vector: the epidemic is spreading like a snowball.

The moment of inertia is 0.00625 kg·m^2 for both the initial and final speeds

To calculate the moment of inertia when the speed of the wheel increases, we need to know the distribution of mass in the body. Assuming the body is a thin ring with the mass concentrated on the rim, we can use the formula for the moment of inertia of a thin ring:

I = m * \(r^2\)

where I is the moment of inertia, m is the mass, and r is the radius.

Given:

Mass of the body (m) = 100 g = 0.1 kg

Diameter of the circular path = 500 mm

Radius (r) = Diameter / 2 = 500 mm / 2 = 250 mm = 0.25 m

Calculate the initial moment of inertia:

Initial speed = 450 rpm

Initial angular velocity (ω1) = 450 rpm * 2π / 60 = 47.12 rad/s

Using the formula for moment of inertia:

I1 = m * r^2

I1 = 0.1 kg * (0.25 m)^2

I1 = 0.00625 kg·m^2

Calculate the final moment of inertia:

Final speed = 750 rpm

Final angular velocity (ω2) = 750 rpm * 2π / 60 = 78.54 rad/s

Using the formula for moment of inertia:

I2 = \(m * r^2\)

I2 = \(0.1 kg * (0.25 m)^2\)

I2 = \(0.00625 kgm^2\)

Therefore, the moment of inertia remains the same as the mass and radius do not change. The moment of inertia is 0.00625 kg·m^2 for both the initial and final speeds.

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The solution of this system is (i₁, i₂, i₃) = (- 10.852 A, 8.479 A, - 2.374 A). The negative signs indicate that real direction of the current is opposite than supposed.

In this question we must make use of Kirchhoff's laws to find the values of the missing currents in the circuit presented in the picture. There are two rules according to Kirchhoff's laws:

Based on the information given by the picture, we have the following system of linear equations that describes the entire circuit:

i₃ = i₁ + i₂    

- i₁ · R₁ + ε₁ - i₁ · r₁ - i₁ · R₅ + ε₂ - i₂ · (r₂ + R₂) = 0      

ε₂ - i₂ · (r₂ + R₂) - i₃ · r₄ - ε₄ - i₃ · r₃ + ε₃ - i₃ · R₃ = 0      

- i₁ - i₂ + i₃ = 0                                                      (1)

(R₁ + r₁ + R₅) · i₁ + (r₂ + R₂) · i₂ = ε₁ + ε₂                (2)

(r₂ + R₂) · i₂ + (r₄ + r₃ + R₃) · i₃ = ε₂ + ε₃ - ε₄        (3)

If we know that R₁ = 5 Ω, r₁ = 0.10 Ω, R₅ = 20 Ω, r₂ = 0.50 Ω, R₂ = 40 Ω, r₄ =  0.20 Ω, r₃ = 0.05 Ω, R₃ = 78 Ω, ε₁ = 22 V, ε₂ = 49 V, ε₃ = 10.5 V and ε₄ = 33 V, then the currents flowing in the circuit are:

- i₁ - i₂ + i₃ = 0

25.1 · i₁ + 40.5 · i₂ = 71

25.1 · i₂ + 78.25 · i₃ = 26.5

The solution of this system is (i₁, i₂, i₃) = (- 10.852 A, 8.479 A, - 2.374 A). The negative signs indicate that real direction of the current is opposite than supposed.

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Answer:

Explanation:

the general form of the position equation with constant acceleration is

s = s₀ + v₀t + ½at²

where

s = position at time = t

s₀ = original position with respect to the selected origin

v₀ = velocity at t = 0

a = constant acceleration

comparing to the equation

x =      + at + bt²

shows that

s₀ = 0

v₀ = a

½a  = b

a = 2b

acceleration will be twice the b value

Answer:

am pretty sure u have to measure like my name is Justin am cracked at fortnite my Guy

13. If the supply of gasoline rises, a substitute that may increase in demand could be electric or hybrid vehicles.

14. Here is how each of the following events may have affected the world price of oil using basic supply and demand analysis:

a. Tax credits offered for expenditures on home insulation would likely decrease the demand for oil as people would use less energy to heat their homes. This would lead to a decrease in the price of oil.

b. The completion of the Alaskan oil pipeline would increase the supply of oil, leading to a decrease in the price of oil.

c. The discovery of oil in Mexico and the North Sea would increase the supply of oil, leading to a decrease in the price of oil.

d. The popularity of Sport Utility Vehicles and minivans would increase the demand for oil as these vehicles typically consume more gasoline than smaller cars. This would lead to an increase in the price of oil.

e. The depletion of natural oil reserves would decrease the supply of oil, leading to an increase in the price of oil.

ANSWER AND EXPLAINATION:
To calculate the impulse imparted on the baseball, we can use the impulse-momentum principle, which states that the impulse experienced by an object is equal to the change in momentum of the object. Mathematically, it can be expressed as:

Impulse = Change in momentum

The momentum of an object is given by the product of its mass and velocity:

Momentum = mass × velocity

In this case, the baseball has an initial mass of 0.14 kg and an initial velocity of 32 m/s. After being struck by the bat, it travels in the opposite direction at a velocity of 49 m/s.

Therefore, the change in momentum is given by:

Change in momentum = (mass × final velocity) - (mass × initial velocity)

Change in momentum = mass × (final velocity - initial velocity)

Change in momentum = 0.14 kg × (49 m/s - (-32 m/s))

Change in momentum = 0.14 kg × (49 m/s + 32 m/s)

Change in momentum = 0.14 kg × 81 m/s

Change in momentum = 11.34 kg·m/s

So, the impulse imparted on the baseball is 11.34 kg·m/s.

The magnitude of the mower's acceleration of mass 36 kg is 1.15 m/s².

Acceleration can be defined as the ratio of the change in velocity to the time of a body.

To calculate the magnitude of the mower's acceleration, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the acceleration of the mower is 1.15 m/s².

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The mass of the planet is  5.98 × 10^24 kg.

To calculate the mass of the planet, we can use Kepler's Third Law of Planetary Motion. This law states that the square of the period of revolution of a planet around the sun is directly proportional to the cube of the semi-major axis of its orbit.

First, we need to convert the period of the satellite's orbit to seconds. We know that there are 60 minutes in an hour, so the period can be expressed as (6 × 60 + 12) minutes, which equals 372 minutes. Multiplying this by 60 seconds, we get a period of 22,320 seconds.

Next, we need to find the semi-major axis of the orbit. In a circular orbit, the semi-major axis is equal to the radius of the orbit. Therefore, the semi-major axis is 8.8 × 10^6 m.

Now, we can apply Kepler's Third Law to calculate the mass of the planet. The formula is T^2 = (4π^2/GM) × a^3, where T is the period of revolution, G is the gravitational constant, M is the mass of the planet, and a is the semi-major axis of the orbit.

Rearranging the formula, we can solve for the mass of the planet:
M = (4π^2/G) × a^3 / T^2

Plugging in the values, we get:
M = (4 × π^2 / 6.67430 × 10^-11) × (8.8 × 10^6)^3 / (22,320)^2

Evaluating this expression, we find that the mass of the planet is approximately 5.98 × 10^24 kg.

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Explanation:

a) How much work is done by gravity?

b) How much work is done by tension?

w = f x d

w = 950 x 0.05 x 5.5 = 261.25j

Answer:

Explanation:

Use kinematic equation v² = u² + 2as

Rearrange for distance

s = (v² - u²) / 2a

Realize that at the top of its flight, the ball has zero velocity and gravity is acting downward in an assumed upward positive reference frame.

s = (0² - 29²) / (2(-9.8))

s = 42.90816...

s = 43 m

Friction is a force that opposes the relative motion of two surfaces in contact. It exists when the surfaces of two bodies are in contact.The answers to the given questions are:

1. See attachment to this answer

2. a = 3.63 m/\(s^{2}\)

3. μ = 0.36

Friction is an oppositional force between the surfaces of two bodies in contact, and tries to limit the motion of one body over the other. It is dependent on the nature of the surfaces in contact.

From the given question;

1. The free body diagram for this question is herewith attached to this answer.

Given that: \(F_{1}\) = 50 N, \(F_{2}\) = 15 N, \(F_{3}\) = 6 N, and m = 8 kg.

2. The acceleration of the body can be determined by:

F = ma

where F is the total force acting on the body, m is the mass of the body and a is its acceleration.

So that;

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

The total force on the body is;

F = \(F_{1}\) - (\(F_{2}\) + \(F_{3}\))

  = 50 - (15 + 6)

  = 50 - 21

F = 29 N

Then;

a = \(\frac{29}{8}\)

  = 3.625

a = 3.63 m/\(s^{2}\)

The acceleration of the body is 3.63 m/\(s^{2}\).

3. The coefficient of limiting friction (μ) between the surfaces is:

μ = \(\frac{Force}{Reaction}\)

Force = 29 N

Reaction = mg

               = 8 x 10

               = 80 N

μ = \(\frac{29}{80}\)

   = 0.3625

μ = 0.36

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Answer:

Friction is a force that opposes the relative motion of two surfaces in contact. It exists when the surfaces of two bodies are in contact.The answers to the given questions are:

1. See attachment to this answer

2. a = 3.63 m/

3. μ = 0.36

Explanation:

The time that Fred taken to cover a distance of 15 miles is 20 minutes or 0.3 hours. For next 30 minutes, he will cover a distance of 22.5 miles. Then the total distance he traveled is 37.5 miles.

The average speed of a moving body is the measure of the distance covered per unit time. The common unit of speed is m/s. Other units are miles/hr., ft./s, km.hr etc.

Given, that within 20 minutes, Fred travels 15 miles. He have to drive 30 minutes more. Then the distance covered within next 30 minutes is :

(30× 15)/20 = 22.5 miles.

Thus in total Fred have to drive 22.5 + 15 = 37.5 miles.

If Fred reaches the office by 7.50 am the total time he taken from 6.30 am is 1.33 hr .

Then average speed = 37.5 miles/1.33 hr = 28 miles/h

Therefore, the average speed of Fred is 28 miles/hour.

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Answer:

\(500\text{N} (490\text{N}) (490.5\text{N})\)

Explanation:

The reaction force is the force that is in the perpendicular direction to the wall.

We have an angle and a hypotenuse, we need to find the adjacent angle - so we can just use cos:

\(cos(\theta)=\frac{\text{adj}}{\text{hyp}}\\\text{hyp}*cos(\theta)=\text{adj}\\100*cos(60)=100*0.5=50\text{kg}\)

However, we would like a force and not a mass.

\(W=mg\\W=50g\\W=500\text{N} (490\text{N}) (490.5\text{N})\)

Answer 1 if you use g as 10, answer 2 if you're studying mechanics in maths, answer 3 if you're studying mechanics in physics.

The correct answer is B. 1.3 m/s north

Explanation:

Velocity is a factor that describes how fast or slow the motion of a body occurs and its direction. Moreover, this can be calculated by dividing the total displacement into the time of movement, and the final result is expressed in units such as meters per second followed by the direction, for example, 152 m/s south. The process to calculate the velocity of the swimmer is shown below.

\(v = \frac{d}{t}\)

\(v = \frac{28 meters}{22 seconds}\)

\(v = 1.27 m/s\)

This means the velocity of the swimmer is 1.27 m/s, which can be rounded as 1.3 m/s. Additionally, if the direction is considered it would be 1.3 m/s north because the swimmer went from the south of the pool to its north.

Answer:

the answer is B

Explanation:

confirmed

(a) The ball goes up to the height of 31.89 m. (b) The ball stays for 5.1 s in the air. (c) The acceleration due to gravity and wind resistance can affect the estimation.

Acceleration owing to gravity is the term used to describe the rate at which a body's velocity changes as a result of the earth's gravitational pull. In general, it is assumed that the acceleration caused by gravity is in the downward direction.

The acceleration caused by gravity has been calculated as, however as it changes from location to location, it may have an impact on the estimation.

You may have thought that the wind has no impact, but it can actually generate drag and even cause the ball to shift course.

Therefore, (a) The ball goes up to the height of 31.89 m. (b) The ball stays for 5.1 s in the air. (c) The acceleration due to gravity and wind resistance can affect the estimation.

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Answer:

A. the wavelength of light is reflected by what it is hitting and directed back into the eye.

Explanation: