What do you do when you analyze the data in science?

Answer:

5km 1 hour

Explanation:

All we need to do in order to find out the direction is to take into account the sign of the charge. As they are both positive, the particles will repel each other, which can be seen on the following drawing:

Thus, particle q2 will try to push particle q1 to the left

The answer is: -

Answer:

Explanation:

Gravity pulls everything down at the same rate of 9.8 m/s/s. If you're looking for the normal force, which is the same as the weight of the object, we'll find that, just in case.

w = mg which says that the normal force/weight of an object is equal to its mass times the pull of gravity:

w = 4.0(9.8) so

w = 39N

Answer:

59.18 kg

Explanation:

use f=ma

f= 580 N

a = 9.8 m/s 2

weigh(m) doesn't change only force(F) changes

Answer: 219.6N

Explanation:

Find the mass of this person by dividing his weight by the accelleration. Remember, F=ma

580 = m*9.8

m = 59.18kg

Then multiply the mass by the new gravitational acceleration on Mars.

59.18*3.711 = 219.6N

True. A state function, by definition, does not depend on the system's past or future. It only relies on the current state or condition of the system.

A state function is a property that is determined solely by the initial and final states of the system, regardless of the path taken to reach those states. Examples of state functions include temperature, pressure, volume, internal energy, enthalpy, entropy, and Gibbs free energy.

The independence from the system's past or future is a fundamental characteristic of state functions. It means that the value of a state function remains the same regardless of how the system arrived at its current state or what happens to it in the future. This property allows for the convenient analysis of thermodynamic processes and the calculation of changes in system properties using state functions.

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Answer:

Explanation:

Given:

m = 2.0 kg

Wk = 225 J

__________

H - ?

Wp = m*g*H

Wp = Wk

m*g*H = 225

H = 225 / (m*g) = 225 / (2.0*9.8) ≈ 11,5 m

The reason why the book does not slide off the teacher's hand when she tilts her hand forward is because of the force of friction between the surfaces of the book and the teacher's hand.

Friction is a force that resists the motion between two surfaces that are in contact. When the book is resting on the teacher's hand, the surfaces of the book and the hand are in contact with each other. When the teacher tilts her hand forward, the force of gravity tries to pull the book downward, but the force of friction between the book and the hand acts in the opposite direction, preventing the book from sliding off the hand.

The amount of friction between two surfaces depends on a few factors, such as the type of materials in contact, the roughness of the surfaces, and the force pressing the surfaces together. The force of friction increases as the force pressing the surfaces together increases. In this case, the weight of the book pressing down on the teacher's hand increases as the hand tilts forward, which increases the force of friction between the book and the hand, keeping the book in place.

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Answer:

false

Explanation:

cause bacteria prefers moist and damp environment

Answer:

False

Explanation: bacteria thrive on moister and grow due to it. if the enviroment they were in were to be dry, the bacteria itself would die. Hope this helps! :)

Answer:

The fundamental frequency of a vibrating string is given by:

f = (1/2L) √(T/μ)

where L is the length of the string, T is the tension in the string, and μ is the linear density (mass per unit length) of the string.

In this problem, L = 238 cm, T = 1610 N, and μ = 0.014 g/cm = 0.00014 kg/cm. We can convert the units of length and mass to SI units (m and kg) to get the frequency in Hz:

L = 2.38 m

μ = 0.00014 kg/m

Substituting these values into the formula, we get:

f = (1/2L) √(T/μ)

f = (1/2 × 2.38 m) √(1610 N / 0.00014 kg/m)

f = 106.8 Hz

Therefore, the fundamental frequency of the string is 106.8 Hz.

Answer:

The fundamental frequency of the string is 225.29 Hz.

Explanation:

To calculate the fundamental frequency of the string, we use the formula below.

Formula:

F' = (1/2l)√(T/m)............... Equation 1

Where:

F' = Fundamental frequency of the string

l = length of the string

T = Tension on the string

m = mass per unit length of the string

From the question,

Given:

l = 238 cm = 2.38 m

T = 1610 N

m = 0.014 g/cm = 0.0014 kg/m

Substitute these values into equation 1

F' = 1/(2×2.38)[√(1610/0.0014)]

F' = (0.210){√(1150000)

F' = (0.210×1072.38)

F' = 225.29 Hz.

Hence, the fundamental frequency of the string is 225.29 Hz.

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Answer:

The new pressure will be 12 atm

Answer:

Kelvin

Explanation:

Kelvin is the universal and scientific unit for temperature as Celsius and Fahrenheit temperatures we use in everyday situations

Answer: Large-scale surface ocean currents are driven by global wind systems that are fueled by energy from the sun. These currents transfer heat from the tropics to the polar regions, influencing local and global climate.

Explanation:

I hope this helped you some!

No. That would be silly.  The water in the tropics is the warmest, since the sun is most direct there.  

Any ocean current that takes water away from the tropics moves the water to cooler places, where the water cools off.  ESPECIALLY the poles, home of the coldest water on Earth.  ICE even !

Answer:

NO Children of the same parents don't have all the same traits. A parent can pass down either a dominant or recessive trait. Can offspring get instructions for the variation of a trait from either parent? ... located on DNA, a gene carries the recipe to produce proteins to tell the cell which trait to create

Explanation:

Answer:

The answer is B. passive

Explanation:

Answer:

passive

Explanation:

i say this because it makes the most sense to me and most of the time in the questions they go for the answer that makes the most sense so my final answer is (B.)

The rotational kinetic energy in the motorcycle wheel is 1317.6 Joules when its angular velocity is 120 rad/s.

To calculate the rotational kinetic energy of the motorcycle wheel, we need to first find its moment of inertia (I). The wheel can be considered as a combination of two cylinders, one with a radius of R1 and another with a radius of R2.

For a solid cylinder, the moment of inertia can be calculated as I = (1/2) * M * R^2. Let's calculate the moments of inertia for both cylinders:

I1 = (1/2) * M * R1^2 = 0.5 * 12 * (0.280)^2 = 0.4704 kg m^2

I2 = (1/2) * M * R2^2 = 0.5 * 12 * (0.330)^2 = 0.6534 kg m^2

Since the wheel consists of both cylinders, we should subtract the moment of inertia of the inner cylinder (I1) from the outer cylinder (I2) to find the net moment of inertia:

I_net = I2 - I1 = 0.6534 - 0.4704 = 0.183 kg m^2

Now that we have the moment of inertia, we can calculate the rotational kinetic energy (KE) using the formula KE = (1/2) * I * ω^2, where ω is the angular velocity (120 rad/s):

KE = 0.5 * 0.183 * (120)^2 = 0.0915 * 14400 = 1317.6 J

Therefore, the rotational kinetic energy of the motorcycle wheel is approximately 1317.6 Joules.

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Stephen Hawking, speaking at the opening of the 2012 London Paralympics games, said, “There is no such thing as a standard run-of-the mill human being and however difficult life may seem but there is always something you can do, and succeed at.”

Stephen Hawking was born on 8th January, 1942, Oxford, England. He died on March 14, 2018, Cambridge. He was that theoretical physicist whose theory of exploding black holes drew upon both relativity theory and quantum mechanics. He had also worked with space-time singularities.

Hawking was also awarded the US Presidential Medal of Freedom in year 2009.

At the age of 21, Hawking was diagnosed with amyotrophic lateral sclerosis that gradually paralyzed him. Stephen Hawking had an estimated IQ of 160. According to Healthline, 68% of people have an IQ that ranges between 85 and 115.

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Following are the values:

Weight of the box: 147 N

Normal force: 127.05 N

Maximum static friction force: 40.66 N

Net force on the box: 57.83 N

Acceleration of the box: 3.855 m/\(s^2\)

To solve the problem, we can use the principles of Newtonian mechanics and consider the forces acting on the box.

1. Determine the gravitational force:

The weight of the box can be calculated as follows:

Weight = mass * acceleration due to gravity

Weight = 15 kg * 9.8 m/\(s^2\)

Weight = 147 N

2. Determine the normal force:

The normal force is the force exerted by the ramp perpendicular to its surface. It can be calculated using trigonometry:

Normal force = Weight * cos(angle of the ramp)

Normal force = 147 N * cos(30°)

Normal force = 127.05 N

3. Determine the maximum static friction force:

The maximum static friction force is given by:

Maximum static friction force = coefficient of static friction * normal force

Maximum static friction force = 0.32 * 127.05 N

Maximum static friction force = 40.66 N

4. Determine the net force on the box:

The net force acting on the box can be calculated by subtracting the friction force from the gravitational force:

Net force = Weight * sin(angle of the ramp) - friction force

Net force = 147 N * sin(30°) - 40.66 N

Net force = 98.49 N - 40.66 N

Net force = 57.83 N

5. Determine the acceleration of the box:

Using Newton's second law (F = ma), we can solve for the acceleration:

Net force = mass * acceleration

57.83 N = 15 kg * acceleration

acceleration = 57.83 N / 15 kg

acceleration = 3.855 m/\(s^2\)

Therefore, the box will experience an acceleration of 3.855 m/\(s^2\) while moving up the ramp.

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The frequency of the travelling wave is found to be 20 Hertz.

The relationship between the frequency of the wave, the wavelength of the wave and the speed of the wave is given by

V = fy

Where,

V is the speed of the travelling wave,

F is the frequency of the travelling wave,

y is the wavelength of the travelling wave.

The speed of the travelling wave is given to be 500m/s and the wavelength of the travelling wave is 25m.

Now, putting all the values,

500 = f(25)

f = 500/25

f = 20Hz

So, the frequency of the travelling wave is 20Hz.

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Answer:

Wright can be measured in pounds

Explanation:

Mass is the quantity of matter a body contains while weight is the measure of mass of a body. Weight is the product if mass and the acceleration due to gravity of a body.

If the mass of an object is known, we can determine the equivalent weight of such object and vice versa using the relationship W = mg

m is the mass if the object (in kg)

W is the weight

g is the acceleration due to gravity

g can be measured both on metre/seconds or lb/ft². This means that the weight of an object can be measured in both kgm/s² (Newton) and lb(pounds).

Also note that different object have different masses hence it is not always true to say that a bowling ball has the same mass as a golf ball.

Based on the explanation above, it can be concluded that Weight can be measured in pounds which gives the only correct statement.

Answer:

Weight can be measure in pounds

Explanation:

Answer:

v = 27 m/s

Explanation:

To find the speed of cars after the collision  you take into account the momentum conservation law. Total momentum of both cars before the collision must be equal to the total momentum of both cars after the collision.

After the collision both cars traveled together, then you have:

\(m_1v_1+m_2v_2=(m_1+m_2)v\)   (1)

m1: mass of the Toyota = 3-ton = 3000 kg

m2: mass of the taxi = 2-ton = 2000kg

v1: speed of the Toyota before the collision = 45m/s

v2: speed of the car before the collision = 0 m/s (it is  at rest)

v: speed of both cars after the collision = ?

You solve the equation (1) for v:

\(v=\frac{m_1v_1+m_2v_2}{m_1+m_2}\)

Next, you replace the values of the rest of the variables:

\(v=\frac{(3000kg)(45m/s)+0kgm/s}{3000kg+2000kg}=27\frac{m}{s}\)

hence, just after the collision both cars have a speed of 27m/s

Answer:

c

Explanation:

c. This can be either a converging or diverging lens, as more information is needed for a final determination.

Answer:

0.875 miles/minute

Explanation:

The formula for velocity if final position - initial position divided by final time - initial time. Here, the final position

of the van was 49 km away from house, and its initial was 0, because you didn't travel anywhere initially. The final time was 56 minutes because that was how long it took to get home, and the initial was 0, because you were 0 minutes into travel at the beginning.

Answer:

D. It decreases

Explanation:

A 1 µC charge can be placed 26.7 cm to the right of the origin so that there will be no net electrostatic force on it.

Calculate the electric field at the point where the 1 µC charge will be placed due to the two charges:

\(E1 = k * Q1 / r1^2E1 = (9 x 10^9 N m^2/C^2) * (10 x 10^-6 C) / (r1^2)E2 = k * Q2 / r2^2E2 = (9 x 10^9 N m^2/C^2) * (-15 x 10^-6 C) / (0.1 m + r2)^2\)

The electric fields due to the two charges must be equal in magnitude but opposite in direction in order for there to be no net electrostatic force on the 1 µC charge. Therefore, we can set E1 = -E2 and solve for r2:

r2 = 2.67 cm

Therefore, the 1 µC charge must be placed 26.7 cm to the right of the origin.

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The horizontal force exerted by air resistance on the bucket is 5,210 N.

The horizontal force exerted by air resistance on the bucket is the parallel force on the cable carrying the bucket.

The magnitude of this force is calculated as follows;

Fx = mg cosθ

where;

Fx = (590 x 9.8) x cos(25.7)

Fx = 5,210 N

Thus, the horizontal force on the bucket is determined from parallel force on the rope.

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A force known as friction prevents movement between two surfaces that are in touch. A static frictional force acts on an object when it is at rest on a surface and stops it from moving. An external force that is stronger than the static frictional force.

However, the frictional force switches from static to kinetic as soon as the item begins to move. Although it can do so when moving quickly or under a lot of stress, the coefficient of kinetic friction is typically lower than the coefficient of static friction. This implies that the amount of force needed to overcome friction may rise when the object moves faster or is subjected to more force.

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Answer:

Attometer

Explanation:

an attometer is the smallest unit of measurement.

Hope it helped!