An electron and a 0.0200 kg bullet each have a velocity of magnitude 500 m/s , accurate to within 0.0100 % . Within what lower limit could we determine the position of each object along the direction of the velocity?

Answer:

3820000000

Explanation:

Answer:

Astrophobia

Explanation:

heop it help

Answer:

Elephant and the eath because Fg is determined by Mass of an object.. So elephant has greater mass therefore, it's Fg is higher

According the universal  law of gravitation, the gravitational force is directly proportional to the mass of an object.  An elephant weighs so much than a man and thus it will experience larger gravitational force from earth.

Gravitational force is a resistive force by which an object attracts other objects towards its centre of mass. The force exerted by the object depends on the mass and the force experienced by the other object depends on its mass and distance between the two objects.

According to universal law of gravitation, the gravitational force is directly proportional to the mass of the object and distance from the ground. The expression for the law is written as:

\(\rm g = G \frac{M_{1} M_{2}}{r^{2}}\)

Where, G is the universal gravitational constant and M1 and M2 be the masses of two objects which and r be the distance between them. As per this relation gravity decreases with increase in distance and increase with an increase in mass.

Therefore, a massive body such as an elephant will experience greater gravitational force from the earth.

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Answer:

Explanation:

density = mass/volume

So if mass and volume increase, density also increases

If a toy rocket is launched vertically and rises to a height of 250 meters, then the initial velocity of the toy rocket would be 70 m / s.

There are three equations of motion given by Newton,

v = u + at

S = ut + 1/2×a×t²

v² - u² = 2×a×s

As given in the problem, a toy rocket is launched vertically and rises to a height of 250 meters, we have to find the initial velocity of the launch,

By using the third equation of motion given by Newton,

v² - u² = 2×a×s

0² - u² = 2×(-9.81)×250

u² = 4905

u = 70 m / s

Thus, the initial velocity of the toy rocket would be 70 m / s.

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Answer:

force meter

Explanation:

Answer:

Wrong, the correct answer is "newton"

Explanation:

1 Newton = 1 kilogram-meter per second2

Answer:

Strong nuclear force

Explanation:

Answer:

Your answer is: False

It is called a resting heart rate for a reason : )

Explanation:

Hope this helped : )

Answer: false

Your resting heart beat is when your heart beat is resting or calmed down. After you run, your heart is not so calmed. The answer is false.

To reach 100 kmph, it would take 0.55 seconds. the speed at which an object's location changes in any direction.

The distance traveled in relation to the time it took to travel that distance is how speed is defined. Since speed simply has a direction and no magnitude, it is a scalar quantity. The units will be in metres per second (m/s) in this example since the distance is measured in metres (m) and the time is measured in seconds (s).

Given that v=100km/h, u=0 (begins at rest), and a=50m/s 2, v in m/s =100 3600 /1000 =27.77m/s

Because the acceleration is constant, we may use the formula v=u+at 27.77=0+50t 27.77/50=t t=0.55s.

To reach 100 kmph, it would take 0.55 seconds.

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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 time taken to travel 50 m ina 25 m/s average velocity is 2 sec.

The directional speed of an item in motion, as measured by a specific unit of time and viewed from a certain point of reference, is what is referred to as velocity.

An object's position changes if it moves in relation to a reference frame, such as when a passenger travels to the back of an airliner or a lecturer moves to the right in relation to a whiteboard. Displacement describes this shift in location.

When anything moves in connection to a reference frame, such when a passenger moves to the back of an airplane or a lecturer walks to the right in relation to a whiteboard, the location of the item changes. This locational change is described as displacement.

The displacement is = 50 m

The average velocity = 25 m /sec

The time taken is = displacement/ average Velocity  = 50/25 = 2 sec.

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The normal strain in rods CE and DF can be calculated based on the given deflection of point B and assuming the beam AD is infinitely rigid. The strain is ε = 8 mm / L.

The strain is a measure of deformation and is given by the ratio of the change in length to the original length of the material. Since the beam AD is assumed to be infinitely rigid, it does not deform and serves as a reference point. The deflection at point B is 8 mm, which represents the change in length of rods CE and DF. To calculate the strain, we need to determine the original length of the rods.

Let's denote the original length of rods CE and DF as L. The strain (ε) is given by the formula: ε = ΔL / L, where ΔL is the change in length and L is the original length.

Given that point B deflects vertically by 8 mm, we assume that both rods CE and DF experience the same deflection. Therefore, the change in length of each rod is also 8 mm.

Now, we can calculate the strain in rods CE and DF. Since the change in length is 8 mm and the original length is L, the strain is ε = 8 mm / L.

Please note that the value of the original length (L) is required to determine the exact strain in rods CE and DF. Without additional information about the dimensions of the rods, it is not possible to calculate the strain accurately.

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The amount of heat released outside is 3.5 kJ and the coefficient of performance is 2.

The efficiency of the a machine or any device is the measure of effectiveness of the device. Efficiency describes how a machine converts input energy to output energy without wasting much of the input energy.

Mathematically, efficiency of a machine is given as;

E = output energy / input energy  x 100%

The coefficient of performance  (COP) of a heat pump, refrigerator or air conditioning system is a ratio of useful heating or cooling provided to work required.

The energy released outside = 3.5 kJ

COP = 3.5 kJ / 1.75 kJ

COP = 2

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Option B is correct. A negative value as the solution indicates that the image is Virtual.

The Lens formula describes the relationship between the distance of an image (v), the distance of an object (u), and the focal length (f) of the lens in optics.

The lens equation is given below;

\(\frac{1}{v}-\frac{1}{u}=\frac{1}{f}\)

When light beams from the same spot on an item reflect off a mirror and diverge or spread apart, virtual pictures are formed.

Hence option B is correct. A negative value as the solution indicates that the image is Virtual.

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Answer:

B. Virtual

Explanation:

Edge 2023

Answer:

same weight

Explanation:

because same

The term which best describes the repeated arrangement of the same molecule is: D. extended structure.

An atom can be defined as the smallest unit which comprises the matter that forms all chemical elements. Thus, atoms are typically the fundamental building blocks of matter and as such determines (defines) the structure of a chemical element.

Generally, atoms are typically made up of three (3) distinct particles and these are;  

In Chemistry, a molecule can be defined as a group of two or more atoms that are chemically bonded together by means of shared electrons and represents the smallest fundamental unit of a substance or chemical compound.

Basically, when the same molecule are arranged repeatedly it is typically referred to as an extended structure.

In conclusion, the term which best describes the repeated arrangement of the same molecule of a chemical compound or substance is an extended structure.

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Explanation:

If the particles that make up an object begin to move quickly, their average kinetic energy increases the object's temperature rises. Group of answer choices

Answer:

A mousetrap makes use of a simple machine called a lever.

Explanation:

In a second-class lever the effort force is at the other end, with the load in the middle. In a third-class lever, the load is at the end and the effort force is between the fulcrum and the load. When you set the mousetrap, you are using a second-class lever. Sorry if I get this wrong. I am in 5th grade! ♥

a) The block goes 7.4 m up the plane

b) It takes 1.62 seconds to get there

c) The speed at the bottom is -9.1 m/s

The initial speed, v₀ = 9.12 m/s

Angle of inclination, θ = 35°

Note that the summation forces on the block as it goes up the inclined plane is 0. That is, ΣF = 0

mgsinθ + ma = 0

mgsinθ = -ma

a = -gsinθ

The acceleration of the block up the plane is:

a = -9.8 sin 35

a = -5.62 m/s²

a) How far up the plane does it go?

Using the equation v² = v₀² + 2as

At the maximum distance up the plane, v = 0

0² = 9.12² + 2(-5.62)s

0 = 83.17 - 11.24s

11.24s = 83.17

s = 83.17/11.24

s = 7.4 m

The block goes 7.4 m up the plane

b) How long does it take to get there?

Using the equation v = v₀ + at

Since we want to calculate the time taken to reach the maximum distance, the speed at this point is 0. v = 0m/s

Substitute a = -5.62, v₀ = 9.12, and v = 0 into v = v₀ + at

0 = 9.12 + (-5.62)t

5.62t = 9.12

t = 9.12 / 5.62

t = 1.62 seconds

c) What is its speed when it gets back to the bottom?

The total time it takes the block to go up and down the plane = 2(1.62)

The total time it takes the block to go up and down the plane = 3.24 s

To calculate the speed of the block when it gets back to the bottom, use the equation v = v₀ + at

v = 9.12 + (-5.62)(3.24)

v = 9.12 - 18.21

v = -9.1 m/s

Answer:

It’s A 2.41 Ohms

Explanation:

Took the test

The resultant force due to the cumulative forces acting on the body is 6i+6j N.

Force is a vector quantity and the direction in which they act affects the total magnitude of force. A vector quantity has both magnitude and direction.

And to add a vector one needs to take account of the direction as well.

The force acting on the body can be written as follow:

1. 10N along x-axis ---- 10i

2. 6N along y-axis ---- 6j

3. 4N along negative x-axis ----- -4i

The resultant force is the sum of the above vector:

10i +6j + (-4i) = 6i+6j N

The magnitude of the total force is

\(\sqrt{6^2+6^2}\\ =\sqrt{36+36}\\ =\sqrt{72}=6\sqrt{2} N\)

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The complete question is:

Find the resultant of the following forces

(i) 10 N along the x-axis

(ii) 6 N along the y-axis

(iii) 4 N along the negative x-axis

To make the study blind, the researchers should randomly assign participants to two groups: one wearing the magnetic bracelet and the other wearing a placebo bracelet without magnetic properties. In a double-blind study, both the participants and the researchers measuring motion sickness should be unaware of which bracelet each participant is wearing.

In a blind study, the researchers aim to eliminate bias by preventing participants from knowing whether they are receiving the actual treatment or a placebo. To achieve this, the research team should randomly assign participants to two groups. One group will wear the magnetic bracelet, while the other group will wear a placebo bracelet that looks identical but lacks any magnetic properties. The participants should not be informed about the nature of the bracelets to ensure unbiased results.

To conduct a double-blind study, both the participants and the researchers who are assessing motion sickness levels need to be unaware of which bracelet each participant is wearing.

This additional measure prevents the researchers from inadvertently influencing the outcome by treating participants differently based on their bracelet assignment. By keeping both the participants and the researchers blind to the bracelet conditions, the study can minimize bias and ensure more reliable results.

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The temperature parameter has the most influence in changing air pressure.

The reason for this is that air molecules expand when heated and compress when cooled. When air molecules are heated, they gain energy and begin to move more rapidly. This increased movement causes the molecules to collide with each other more frequently, creating more force and pressure. On the other hand, when air molecules are cooled, they lose energy and begin to move more slowly.

This decreased movement causes the molecules to collide with each other less frequently, creating less force and pressure. Thus, the temperature parameter has a direct impact on air pressure by changing the speed and frequency of air molecule collisions.

The temperature parameter has the most influence in changing air pressure because air pressure is caused by the force exerted by air molecules colliding with each other and with surfaces. When the temperature of air changes, the speed and frequency of air molecule collisions also change, which in turn affects air pressure.

Temperature changes can be caused by many factors, including changes in solar radiation, humidity, and altitude. For example, on a hot summer day, the sun heats the air near the ground, causing the air to rise and creating an area of low pressure. This low pressure system then draws in cooler air from surrounding areas, which can lead to thunderstorms and other weather phenomena.

The temperature parameter has the most influence on air pressure because it directly affects the speed and frequency of air molecule collisions, which are the fundamental cause of air pressure.

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Answer:

definition of matter is that matter takes up space and has mass

D. Two substances must combine chemically.

One type of atom makes up an element, which is a white crystalline solid that cannot be divided into more than one component. Compounds are pure substances created by mixing two or more substances in a specific mass ratio.

Chemically pure substances that can be found in nature are called elements and compounds. An component is an object made of the same kinds of atoms as a compound, which is how they differ from one another.

It is common for the disorder to develop and the entropy of the system to increase as a result of the dispersion of molecules, atoms, and ions of one sort during the creation of a solution throughout a second substance.

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The correct answer is B. The system did 800 J of work.

ΔU = Q - W

we are given that ΔU = 600 J and Q = 1400 J.

W = Q - ΔU

W = 1400 J - 600 J

W = 800 J

Thermal energy is a type of energy that is related to the temperature of a system or object. It is a form of kinetic energy that results from the movement of particles in a substance. The faster the particles move, the higher the temperature and the greater the thermal energy of the substance.

In physics, thermal energy is often associated with heat transfer between two objects that are at different temperatures. This transfer of energy can occur through conduction, convection, or radiation. For example, when you touch a hot stove, the thermal energy from the stove is transferred to your hand, causing a sensation of heat.

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The ship is located 200.51 km east from the harbor.

The given angle of travel of the ship is 27.5° to the south of due east. To solve this question, we can use trigonometry, and more specifically, we can use the sin function because we know the opposite and hypotenuse side of the angle of travel of the ship. To get started, we need to break down the angle of travel as well as the displacement of the ship along the eastern axis. We know that the ship sailed at 27.5° to the south of due east and traveled a distance of 365 km. From this information, we can find the opposite and hypotenuse side of the triangle formed by the ship's angle of travel and displacement eastward. Let x be the displacement of the ship along the eastern axis.

Then, east displacement of ship = x

We know that the angle of travel of the ship = 27.5° south of due east. This implies that angle of travel of the ship from the eastern axis is 90° - 27.5° = 62.5°.

We know that opposite side of the ship's angle of travel is the southward displacement of the ship = 365 km.

This implies that the hypotenuse of the ship's angle of travel is given as: hypotenuse = 365 / sin(62.5°) = 398.89 km

Therefore, the displacement of the ship along the eastern axis = east displacement of the ship = hypotenuse × cos(62.5°)

Substituting hypotenuse = 398.89 km and angle of travel of ship from eastern axis = 62.5°, we get:

east displacement of ship = 398.89 × cos(62.5°) = 200.51 km

Therefore, the ship is located 200.51 km east from the harbor.

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When a patient brings in a new prescription for tetracycline 500 mg

The best practice at data entry would be

Tetracycline is used to treat a wide variety of infections, including acne. It is an antibiotic that works by stopping the growth of bacteria. This antibiotic treats only bacterial infections. It will not work for viral infections (such as common cold, flu).

Using any antibiotic when it is not needed can cause it to not work for future infections. Tetracycline can also be used in combination with anti-ulcer medications to treat certain types of stomach ulcers.

Tetracycline works best when taken on an empty stomach 1 hour before or 2 hours after meals. If stomach upset occurs, ask your doctor if you can take this medication with food. Take each dose with a full glass of water (8 ounces or 240 millilitres) unless your doctor directs you otherwise. Do not lie down for at least 10 minutes after taking this medication. For this reason, do not take it right before bedtime.

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