You find a micrometer (a tool used to

measure objects to the nearest 0.001 mm) that has

been badly bent. How would it compare to a new,

high-quality meterstick in terms of its precision? Its

accuracy?

Answer:

True

Explanation:

I did this on a test and got it right, I swear

Answer:

No and yes it's like a 30%or 20%

Explanation:

"researchers say that there is no proof that dimples are inherited."

meaning that if the mom or dad had dimples it might have a chance or no since a dominant trait not a recessive trait

If you are at zero degrees latitude and zero degrees longitude, you are in the Atlantic Ocean.

This location is often referred to as the "Prime Meridian" and is the line of longitude that separates the Eastern Hemisphere from the Western Hemisphere. It is also the starting point for measuring longitude, with longitudes to the east and west being measured in degrees relative to this line. The Prime Meridian intersects the Equator at zero degrees latitude, which is the line of latitude that circles the Earth at 0 degrees North and South and separates the Northern Hemisphere from the Southern Hemisphere.

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One of the best defensive driving techniques for windy conditions is driving with both hands on the steering wheel.

When driving in windy conditions, it is essential to take some safety precautions to avoid accidents and maintain control over the vehicle. A vehicle's stability and safety depend on the driver's ability to control it, especially in extreme weather conditions. Driving with both hands on the steering wheel is the most recommended defensive driving technique to stay in control of the vehicle during windy conditions. Besides driving with both hands on the steering wheel, it's essential to maintain a slow and steady speed, pay attention to the wind direction, and stay focused on the road. The strong wind can cause vehicles to drift, sway, or even flip, so it's necessary to keep a safe distance from other vehicles, especially large trucks or buses. When driving on a windy day, it's crucial to remain calm and avoid panic. Sudden movements and reactions can cause the driver to lose control of the vehicle, which could result in a severe accident. Therefore, it's best to stay alert, keep both hands on the steering wheel, and maintain a slow and steady speed to stay safe in windy conditions.

In conclusion, the best defensive driving technique for windy conditions is driving with both hands on the steering wheel, maintaining a slow and steady speed, and keeping a safe distance from other vehicles. Stay focused, stay calm, and stay safe. The answer to the question is: driving with both hands on the steering wheel.

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Answer:

Hi there!

Your answer is;

345,600 mins per 240 days

Explanation:

First, start small

How many minutes are in one hour?

60mins per 1 hr

How many minutes per one day?

60 × 24= 1440

1440 mins per 1 day

How many minutes per 240 days?

1440× 240= 345600

345,600 mins per 240 days

Hope this helps

Answer:

D, A

Explanation:

#1

Height is same for all cars

So they all will arrive at same speed but A will come first

Option D

Answer:

Work done = force x distance moved

180 x 10 = 1800 N Explanation:

A powerlifter lifts a 180 kg bar from the floor to above his head gravitational field strength = 10 N/kg, the work done by the powerlifter in lifting the bar is 3780 Joules.

To calculate the work done by the powerlifter in lifting the bar:

Work = Force × Distance × cos(θ)

Here, it is given that:

Force = the constant force applied by the powerlifter

Distance = 2.1 m

θ = 0° (since the force is applied vertically upwards and the displacement is also vertical)

Now, we need to determine the force applied by the powerlifter. We know the weight of the bar, which can be calculated using the formula:

Weight = mass × gravitational field strength

So,

Weight = 180 kg × 10 N/kg = 1800 N

Since the powerlifter applies a constant force equal to the weight of the bar, the force is 1800 N.

Substituting the values into the work formula:

Work = 1800 N × 2.1 m × cos(0°)

Since cos(0°) is equal to 1, the equation simplifies to:

Work = 1800 N × 2.1 m × 1

Work = 3780 Joules

Thus, the work done by the powerlifter in lifting the bar is 3780 Joules.

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Your question seems incomplete, the probable complete question is:

A powerlifter lifts a 180 kg bar from the floor to above his head.gravitational field strength = 10 N/kg The powerlifter uses a constant force to lift the bar a distance of 2.1 m.

Calculate the work done.

Answer:

Therefore the planet is Saturn .

Explanation:

Let acceleration due to gravity be g .

weight on the planet = 726 g

Frictional force = μs mg

= .65 x 726 x g

This force is equal to 4930 N .

.65 x 726 x g = 4930 N .

g = 10.44 .

Therefore the planet is Saturn .

Answer:

Option A. 0.36 m/s to the left

Explanation:

From the question given above, the following data were obtained:

Force resistance (Fᵣ) = 55.2 N

Applied force (Fₐ) = 31.8 N

Mass (m) = 65.2 kg.

Acceleration (a) =?

Next, we shall determine the net force acting on the skateboarder. This can be obtained as illustrated below:

Force resistance (Fᵣ) = 55.2 N

Applied force (Fₐ) = 31.8 N

Net force (Fₙ) =?

Fₙ = Fᵣ – Fₐ

Fₙ = 55.2 – 31.8

Fₙ = 23.4 N to the left

Finally, we shall determine the acceleration of the skateboarder. This can be obtained as follow:

Mass (m) = 65.2 kg.

Net force (Fₙ) = 23.4 N to the left

Acceleration (a) =?

F = ma

23.4 = 65.2 × a

Divide both side by 65.2

a = 23.4 / 65.2

a = 0.36 m/s

Since the net force acting on the skateboarder is to the left. Therefore, the acceleration of the stakeholder will also be towards the left (i.e 0.36 m/s to the left)

Answer:

A. 0.36 m/s to the left

Explanation:

The gravitational pull of the earth (VERY large mass) is greater than YOUR gravitational pull on the pencil

Force of gravity = G  m1m2/ r^2

  G = constant    m1 = pencil mass   m2 = earth (or you)

                         r = distance between the objects)

The type of elements present in a gas can be determined by studying the gas's spectral lines and conducting spectroscopic analysis.

Spectroscopy is a powerful tool used to study the composition of gases. When a gas is subjected to high energy, such as through electrical discharge or heating, it emits light at specific wavelengths. This emitted light, when passed through a prism or a diffraction grating, produces a spectrum of distinct lines.

These lines correspond to the specific wavelengths of light emitted by different elements present in the gas.

By analyzing the spectral lines observed in a gas, scientists can identify the elements present. Each element has a unique set of energy levels, and therefore, its own characteristic emission spectrum. By comparing the observed spectral lines with known spectra of different elements, researchers can determine the elemental composition of the gas.

Furthermore, spectroscopic techniques can also provide information about the abundance or concentration of each element in the gas sample. The intensity of the spectral lines correlates with the quantity of the corresponding element present.

Overall, studying the spectral lines and conducting spectroscopic analysis of a gas enables scientists to determine the types of elements present and their relative concentrations, facilitating a deeper understanding of the gas's composition and properties.

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Answer:

I'm not to sure but I think the answer is 1.5m/s^2

Explanation:

Acceleration = Change in Velocity over Time.

So we get 15 - 0.0 divided by 10.0 which = 1.5m/s^2

But again I'm no expert I'm learning this stuff just like you guys.

I'm guessing 6.

the coefficient of two turns our hydrogen into 4 and our oxygen into 2 which makes a total of 6 molecules.

The integral of 1/(1 + x²) is (1/2)ln|1 + x²| + C where C is the constant of integration.

Integration is a mathematical process of finding the antiderivative of a function. To integrate the given expression 1/(1 + x²), we will use the substitution method.

Let u = 1 + x², du/dx = 2x dx, then dx = du/2x and the integral becomes:

∫1/(1 + x²) dx = ∫1/u * (1/2x) du= (1/2)∫1/u du

The antiderivative of 1/u is ln|u| + C, where C is the constant of integration.

Therefore, the final solution of the integral is (1/2)ln|1 + x²| + C.

Let us work through the steps:

Step 1:Let u = 1 + x² and then differentiate both sides with respect to x to obtain du/dx. du/dx = 2x

Substitute 2x dx = du into the integral ∫1/(1 + x²) dx to get the integral in terms of u:∫1/u * (1/2x) du = (1/2) ∫1/u du

Step 2:Calculate the antiderivative of 1/u, which is ln|u|. Thus, the final solution is (1/2)ln|1 + x²| + C, where C is the constant of integration. The constant C will vary depending on the initial conditions of the problem.

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Answer:

The density of the substance is

\(0.85\: \: g \: \: \: {cm}^{ - 3}\)

Hope you could get an idea from here.

Doubt clarification - use comment section.

The X₅ impulsive flare has a total X-ray flux that is four times greater than the X1 long-duration flare.

The total X-ray flux for the X5 impulsive flare is:

5x10-4e⁻² W/m² * 3600 s/hour * 1 hour

= 5.4 J/m²

The total X-ray flux for the X1 long-duration flare is:

1x10⁻⁴ e-t/3 W/m² * 3600 s/hour * 1 hour

= 1.2 J/m²

As you can see, the X₅ impulsive flare has a total X-ray flux that is four times greater than the X1 long-duration flare. Therefore, the X impulsive flare is more likely to signal the beginning of a significant space weather event.

The reason for this is that the X₅ impulsive flare is a much more powerful event. It releases a much larger amount of energy in a much shorter period of time.

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Answer: c

Explanation:

Let's break down each statement and determine its accuracy: Triton shows similar cratering to the Lunar highlands, which suggests that it too is an old surface. True.

Triton, the largest moon of Neptune, displays a surface with numerous impact craters similar to the Lunar highlands. This suggests that Triton's surface is indeed old and has experienced a significant amount of bombardment by asteroids and other celestial bodies over time.

Jupiter puts back into space twice the energy it gets from the Sun. False. Jupiter does not put back into space twice the energy it receives from the Sun. Instead, Jupiter primarily radiates away the energy it receives from the Sun, largely due to its internal heat and the energy generated by its intense atmospheric activity, such as storms and the Great Red Spot.

Telescopically, Jupiter is the most colorful and changeable of the planets. True. When observed through a telescope, Jupiter's atmosphere displays a wide range of colors and dynamic features. Its prominent bands of clouds, composed mainly of ammonia crystals, exhibit varying shades of white, brown, red, and other colors. Additionally, Jupiter's atmospheric dynamics generate ever-changing cloud patterns, storms, and swirling vortices, making it visually captivating and constantly changing.

The rings of Saturn occupy the region inside Saturn's Roche limit. True. Saturn's rings are indeed located within the region defined by Saturn's Roche limit. The Roche limit is the distance from a planet at which tidal forces exerted by the planet's gravity would disrupt a celestial body held together only by its own gravity. Inside the Roche limit, the gravitational forces exerted by Saturn on any potential ring material overcome the body's self-gravity, causing it to break apart and disperse into a ring structure. Therefore, Saturn's rings occupy the region within its Roche limit.

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The mechanical energy at top =Mechanical energy at bottom

\(\\ \tt\longmapsto M_{initial}=M_{Final}\)

\(\\ \tt\longmapsto KE=M_{initial}\)

\(\\ \tt\longmapsto KE=P.E_{(Top)}+K.E_{(Top)}\)

\(\\ \tt\longmapsto K.E=mgh+\dfrac{1}{2}mv^2\)

\(\\ \tt\longmapsto K.E=m\left(gh+\dfrac{v^2}{2}\right)\)

\(\\ \tt\longmapsto K.E=54\left((10)(51)+\dfrac{2.6^2}{2}\right)\)

\(\\ \tt\longmapsto K.E=54\left(510+\dfrac{6.76}{2}\right)\)

\(\\ \tt\longmapsto K .E=54(510+3.38)\)

\(\\ \tt\longmapsto K.E=54(513.38)\)

\(\\ \tt\longmapsto K.E=27722.52J\)

\(\\ \tt\longmapsto K.E=27.7KJ\)

The speed of the car at the bottom of the hill is obtained as, \(v = \sqrt{2gh}\)

According the principle of conservation of energy, the total potential energy of the car will be converted to maximum kinetic energy when the car is at the bottom of the hill.

\(K.E = P.E\\\\\frac{1}{2} mv^2 = mgh\\\\v^2 = 2gh\\\\v= \sqrt{2gh}\)

where;

Thus, the speed of the car at the bottom of the hill is obtained as, \(v = \sqrt{2gh}\)

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Answer:

The methodology employed by Galileo contributed to the development of Physics by find moons of Jupiter. (I think)

sorry if it's wrong

Answer:

yes

Explanation:

Answer:

the angular acceleration of the gate is approximately 1.61  \(\frac{rad}{s^2}\)

Explanation:

Recall the formula that connects the net torque with the moment of inertia of a rotating object about its axis of rotation, and the angular acceleration (similar to Newton's second law with net force, mass, and linear acceleration):

\(\sum \tau_1=I\,\alpha\)

In our case, both forces contribute to the same direction of torque, so we can add their torques up and get the net torque on the gate:

\(\tau_{net}=(20*2+30*3.5) \,N\,m=145\,\,N\,m\)

Now we use this value to obtain the angular acceleration by using the given moment of inertia of the rotating gate:

\(\sum \tau_1=I\,\alpha\\145\,\,N\.m=(90\,\,kg\,m^2)\,\alpha\\\alpha= \frac{145}{90} \frac{rad}{s^2} = 1.61\, \frac{rad}{s^2}\)

Answer:

2.286 km/s²

Explanation:

Since acceleration a = (v - u)/t where u = initial horizontal velocity of ball = 0 m/s (since it starts from rest), v = final horizontal velocity of ball at serve = 73.14 m/s and t = time taken for serve = 32.0 ms = 0.032 s

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

a = (v - u)/t

a = (73.14 m/s - 0 m/s)/0.032 s

a = 73.14 m/s/0.032 s

a =  2285.625 m/s²

a = 2.285625 km/s²

a ≅ 2.286 km/s²

So, the x - component of the ball's acceleration during the serve is 2.286 km/s²

Your electric utility company sends you a monthly bill informing you of the number of kilowatt- hours you have used that month therefore the utility is charging you for energy.

This is referred to as a type of service such as light, power etc which are  provided by a public utility.

Electricity utility send us a monthly bill of the number of unit consumed by our appliance per month and the amount you owe is derived by multiplying your utility's rate per kWh by the total kWhs you used that month. It is also how much energy is used over a certain time period which is therefore the reason why energy was chosen as the correct choice.

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Answer:

So that the researchers know how much of the result is a trick of your mind and how much of the result is real.

Explanation:

So first, in order to answer this question we need to know what a placebo is.

Placebo: any treatment that has no active properties, like a sugar pill.

Now we ask ourselves, how could a placebo be something of interest in human studies?

Our brains are amazing things and can connivence themselves many things.  Hints the phrase "placebo effect" that is very common in the medical field.

The placebo effect (a positive effect produced by a placebo drug or treatment, which cannot be attributed to the properties of the placebo itself, and must therefore be due to the patient's belief in that treatment) is a really good example as to why they are useful in human studies.

How else could you know was a true effect or just something someone believed would happen anyway?

Answer:

c

did it on usa test prep

According to Jean Piaget, unrealistic idealism often occurs in adolescence as a result of egocentrism. The inability to distinguish between self and others is referred to as egocentrism.

The inability to distinguish between self and others is referred to as egocentrism. It is, more precisely, the incapacity to effectively assume or comprehend any viewpoint other than one's own.

Egocentrism may be present in every stage of life, including childhood, adolescence, and maturity.

Hence option B is correct. According to Jean Piaget, unrealistic idealism often occurs in adolescence as a result of egocentrism.

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Answer:

got it right⬇️✅

The standard normal curve, Z, is a bell-shaped distribution with a mean of 0 and a standard deviation of 1.

Therefore, statement a) is false as the standard deviation of Z is o=1, not 0. Statement b) is also false as the mean of Z is u=0, not 1. Statement c) is true as the Z curve is symmetric about zero, meaning that the area to the left of zero is equal to the area to the right of zero. This symmetry is a result of the mean being at zero and the standard deviation being equal in both directions.

standard normal curve, Z, is a fundamental concept in statistics and is used in a variety of applications, including hypothesis testing, confidence intervals, and determining probabilities. Understanding the properties of the standard normal curve is essential for conducting statistical analysis and drawing valid conclusions from data.

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Answer:

people play basket ball on espn every year

Explanation:

i just need points