a force of 20 n causes a spring to stretch 5 cm. what is the spring constant? group of answer choices 1 n/m 20 n/m 400 n/m 2 n/m

Answer:

A national park is one such protected area for the special species of flora and fauna of the region. In Nepal, there are numerous national parks to conserve and protect wildlife and their natural habitat.

Answer:

I think it's 250

Explanation:

If the car is traveling 50 km/hr that means every hour, the car drives 50 km. So if you want to know how far it will go in 5 hours you do 50x5.

The question is incomplete. The complete question is :

The Rocket Club is planning to launch a pair of model rockets. To build the rocket, the club needs a rocket body paired with an engine. The table lists the mass of three possible rocket bodies and the force generated by three possible engines.

A 4-column table with 3 rows. The first column labeled Body has entries 1, 2, 3. The second column labeled Mass (grams) has entries 500, 1500, 750. The third column labeled Engine has entries 1, 2, 3. The fourth column labeled Force (Newtons) has entries 25, 20, 30.

Based on Newton’s laws of motion, which combination of rocket bodies and engines will result in the acceleration of 40 m/s2 at the start of the launch?

Body 3 + Engine 1

Body 2 + Engine 2

Body 1 + Engine 2

Body 1 + Engine 1

Solution :

Given :

Body       Mass (gram)     Engine      Force (newtons)

1                   500                 1                     25

2                  1500                2                    20

3                  750                  3                    30

The body 1 has a mass of 500 gram which is equal to 0.5 kg

And engine 2 has a force of 20 newtons.

We know that according to Newton's laws of motion,

Force = mass x acceleration

 20    = 0.5 x acceleration

Acceleration \($=\frac{20}{0.5}$\)

                      \($=\frac{200}{5}$\)

                      \($= 40 \ m/s^2$\)

Therefore, based on laws of motion of Newton, the Body 1 + Engine 2 combination of the rocket bodies and engines will result in an acceleration of \($ 40 \ m/s^2$\) at the start of the launch.

Answer: the coefficient of friction

Explanation:

The magnitude of frictional force is \(\mu\)N and the magnitude of the force is N. So if we take the ratio of it we will get  \(\mu\) In result.

The friction coefficient is the ratio of the normal force pressing two surfaces together to the frictional force preventing motion between them. Typically, the Greek letter is used to symbolize it, i.e., \(\mu\). In mathematical terms, is equal to F/N, where F represents frictional force and N represents normal force. Since both F and N are measured in units of force, the coefficient of friction is a dimensional less quantity (such as newtons or pounds).

For both static and kinetic friction, the coefficient of friction has a range of values. When an object experiences static friction, the frictional force resists any applied force, causing the object to stay at rest until the static frictional force is removed. In kinetic friction, the frictional force resists the motion of the object.

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The halogen elements are the six elements in Group 17 of the periodic table. Group 17 is the second column from the right in the periodic table and contains six elements: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (As), and tennessine (Ts).

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Answer:

the force is on the z axis, coming out of the blade

Explanation:

The direction of the magnetic force is given by the right hand rule,

For a positive charge, the thumb points in the direction of velocity, the other fingers extended in the direction of the magnetic field, and the palm points in the direction of force.

In this case.

Thumb points North

The fingers extended is in the east - west direction parallel to the blade

The palm is sticking out of the leaf, in the z direction

the answer is the force is on the z axis, coming out of the blade

electromagnetic force, strong nuclear force, and weak nuclear force.

The acceleration of a body can be calculated using the following equation:

s = ut + ½at²

Where;

400 = 0 × 20 + ½ × a × 20²

400 = 0 + 200a

a = 2m/s²

Force acting on the truck can be calculated by multiplying the mass of the truck by its acceleration as follows:

Force = 7000kg × 2m/s²

Force = 14,000N

Therefore;

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Answer:

Harmful bacteria are called pathogenic

Explanation:

Harmful bacteria are called pathogenic bacteria because they cause disease and illnesses like strep throat, staph infections, cholera, tuberculosis, and food poisoning.

The rule for a good graph can be found that the scales in for the two axes are

Graphical representation is the best method to visualize a set of data and understand the relationship between them.

A good graph must ensure that the data occupies the largest possible part of the sheet and the resolution is such that errors can be visualized.

The way to make a good graph must comply with:

                    Range = \(\frac{Value_{final} - Value_{initial} }{boxes}\)

Where Value area the experimetla value, boxes are the division grid.

In this case the paper divisions are 20 boxes on each axis, let's find the range

x-axis

         Rₓ = \(\frac{60-0}{20}\)60-0 / 20

         Rₓ = 3

y-axis

          \(R_y\) = \(\frac{15 -0 }{20}\)15-0 / 20

          \(R_y\) = 0.75

In the attachment we have a diagram of the axes of the graph, to avoid that the values ​​are very saturated, some have been placed in a spaced way.

In conclusion using the rules for a good graph we can find that the scales in for the two axes are

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When a car's horn produces a constant frequency of 350 hz as it passes by suzy, the best estimate of the frequency suzy hears after the car passes her is slightly lower than 350 hz. This is known as the Doppler effect.

The Doppler effect refers to the change in frequency of a wave in relation to an observer's movement in a straight line, typically when the observer and the source are moving toward or away from one another. In this situation, the frequency of the sound wave produced by the horn is constant as it approaches Suzy. The sound wave encounters Suzy and is then refracted by Suzy.

As a result, the sound wave appears to be compressed when it travels to Suzy, causing a higher pitch. After the car has passed Suzy, the sound wave is refracted again and appears to be stretched out, causing a lower pitch to Suzy. As a result, the best estimate of the frequency Suzy hears after the car passes her is slightly lower than 350 hz.

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Answer:

I am not sure about this question sry but u can try asking a tutor u don't need to use any points

Among the given options d. Shatong​ is not a target game.

In the Filipino game of "Batuhang Bola," participants aim tiny stones or balls towards a target to get points. In the Filipino game of "Tumbang Preso," participants attempt to topple a tin can by hurling slippers or other things at it. Chinese Garter is a jumping game where participants attempt to conquer higher levels with each successful jump over a stretched garter or elastic band held by two persons.

Shatong is not a game of aim or a target. Using sticks or straws, participants attempt to flick or strike tiny shells or pebbles in order to get them to drop on a target or inside a defined area. In contrast to the other games listed above, it does not entail hitting or aiming at a particular target. Thus, it is not a target game.

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Answer: The particles of a solid are [generally] closest together while those of a gas are farthest apart

Explanation:

The statement, "The Voyager 1 space probe can't change its own motion" is correct and true. The Voyager 1 space probe was launched by NASA in 1977, and since then it has traveled over 14 billion miles away from Earth. It's the most distant spacecraft from Earth.

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The least count and estimated fractions of a meterstick is 0.5 cm. The least count of a vernier caliper is 0.1 mm, and the estimated fractions are 0.05 mm.

The least count of a micrometer caliper is 0.01 mm and the estimated fractions are 0.005 mm. The least count of a balance is 0.1 g, and the estimated fractions are 0.05 g. The least count of a graduated cylinder is 0.5 ml, and the estimated fractions are 0.25 ml.

In the science of measurement, the least count of a measuring instrument is defined as the smallest value in which the measured quantity that can be resolved on the instrument's scale.

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(c) The number of half-lives that have passed according to the bar graph is 3.

The half life of a radioactive element or atom is the time taken for the element to decay to half of its original mass.

The number of half-lives that have passed according to the bar graph will be determined by comparing the radioactive element and the daughter element.

0 half-life -------- 0 daughter

1 half-life ----------- 10 daughter

2 half - life ------------ 20 daughter

3 half -life ------------ 30 daughter

Thus, the radioactive element have complete 3 cycles of half life before the daughter 30 is obtained.

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The initial temperature of the water was approximately 81.67°C.

To solve this problem, we can apply the principle of energy conservation. The heat lost by the copper block is equal to the heat gained by the water.

The heat lost by the copper block can be calculated using the formula: Q1 = m1 * c1 * ΔT1,

where m1 is the mass of the copper block (40 g), c1 is the specific heat capacity of copper (0.39 J/g°C), and ΔT1 is the change in temperature (final temperature - initial temperature of the copper block).

The heat gained by the water can be calculated using the formula: Q2 = m2 * c2 * ΔT2, where m2 is the mass of the water (105 g), c2 is the specific heat capacity of water (4.18 J/g°C), and ΔT2 is the change in temperature (final temperature - initial temperature of the water).

Since the copper block and the water reach equilibrium, Q1 = Q2. Therefore, we can equate the two equations:

m1 * c1 * ΔT1 = m2 * c2 * ΔT2

Substituting the given values:

(40 g) * (0.39 J/g°C) * (95°C - initial temperature) = (105 g) * (4.18 J/g°C) * (24°C - initial temperature)

Simplifying the equation and solving for the initial temperature of the water gives us approximately 81.67°C.

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Answer:

Hey mate....

Explanation:

This is ur answer.....

Dancing is a great cardio workout. Like any good, low-impact cardio workout, dancing can improve cardiovascular health, increase stamina, strengthen bones and muscles and stave off illnesses....

SO IT'S YES!

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Answer:

yes because you are doing cardio activitys

a) The motion of the object between 15 s to 30 s is increasing velocity, to a constant velocity and finally a decreasing velocity.

(b) The average velocity of the object between 0 and 15 seconds is 0.167 m/s.

(c) The position of the object at 5.0 seconds is 0.5 m.

(d) Between 30 and 40 seconds, the velocity of the object is decreasing and the object is decelerating.

(a) The motion of the object between 15 s to 30 s can be described as increasing velocity, to a constant velocity and finally a decreasing velocity.

(b) The average velocity of the object between 0 and 15 seconds is calculated as;

average velocity = total displacement / total time

average velocity = (2.5 m - 0 m ) / ( 15 s - 0 s ) = 0.167 m/s

(c) The position of the object at 5.0 seconds is calculated as follows;

at 5.0 seconds, the position of the object is traced from the graph as 0.5 m.

(d) The motion of the object between 30 and 40 seconds is calculated as;

velocity = ( 0 m - 4 m ) / ( 40 s - 30 s ) = - 0.4 m/s

Between 30 and 40 seconds, the velocity of the object is decreasing and the object is decelerating.

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The Bhutan Forest Act of 1969, affect the lives of shifting cultivators because the act placed the status of Tsheri land on the same footing with wetland and rain-fed land.

A field that had been developed whenever was left neglected for quite a long time, Shifting cultivators were tracked down in the sloping and forested lots of North-east and Central India. The existences of these ancestral individuals relied upon free development inside backwoods and on having the option to involve the land and woods for developing their harvests.

The Forest Act of 1969 has restricted new clearances for moving development however has not deterred the act of it where such development doesn't jeopardize the wellbeing of the roadway and public property. The Land Act of 1979 has put the situation with
Tsheri land on a similar footing with wetland and rain fed land.

Thus, Bhutan Forest Act of 1969, affect the lives of shifting cultivators.

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Answer:

The movement, or a tendency to move, toward a center of gravity, as in the falling of bodies to the earth is called gravitation

Answer:

The Object Is Not Accelerating.

Explanation: Just Got It Correct

Answer:

Effort = 540 Newton

Explanation:

Given the following data;

Load arm = 60 cm

Effort arm = 40 cm

Load = 360 N

Conversion:

100 cm = 1 meters

40 cm = 40/100 = 0.4 meters

60 cm = 60/100 = 0.6 meters

To calculate the effort that Reha should apply to lift Neha, we would use the expression;

Effort * effort arm = load * load arm

Substituting into the expression, we have;

Effort * 0.4 = 360 * 0.6

Effort * 0.4 = 216

Effort = 216/0.4

Effort = 540 Newton

Answer:

Tin fork and knife.....Copper coin...steel pole

Explanation:

Malleable objects are those which could be shaped with out breaking or could be turned into wires. Tin fork and knife could be bent so it is malleable, copper could be turned into wires so it is also malleable. Most of the metals are malleable. Mild Steel is used in making poles and pipes which is malleable

Answer:

A C F or tin fork and knife from camping set

steel pole fence post

copper coin

Explanation:

I got it right on edg

                                                    hope it helps :)

The estimated overall resistance of the heating element is approximately 0.99 Ω. We can use the formula for the resistance of a wire.

To estimate the overall resistance of the heating element, we can use the formula for the resistance of a wire:

R = (ρ * L) / A

where R is the resistance, ρ is the resistivity of the material, L is the length of the wire, and A is the cross-sectional area of the wire.

Given:

Length of the wire (L) = 220 cm = 2.20 m

Diameter of the wire (d) = 0.56 mm = 0.056 cm = 0.00056 m

Resistivity of nichrome (ρ) = 110 × 10^(-8) Ω·m

First, we need to calculate the cross-sectional area (A) of the wire using the diameter:

A = π * (d/2)^2

Substituting the values:

A = π * (0.00056/2)^2

= π * (0.00028)^2

= π * 7.84 × 10^(-8) m^2

≈ 2.461 × 10^(-7) m^2

Now, we can calculate the resistance (R):

R = (ρ * L) / A

= (110 × 10^(-8) Ω·m * 2.20 m) / 2.461 × 10^(-7) m^2

= 0.99 Ω

Therefore, the estimated overall resistance of the heating element is approximately 0.99 Ω.

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Yes, defining the charge on an electron to be positive have any effect on coulomb’s law.

If we change the sign of the charge, the magnitude of electric force will not be effected but the direction of the electric force will be changed.

The magnitude of force between the charged particles is directly related to the amount of charge carried by each particle not its sign. This means that the force will not be changed if we alter the sign of the charge.

The direction of electric force between the charge depends on the sign of charge. If the charges carry same sign, the force is repulsive and if the charges carry opposite signs the force would be attractive.

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When the coil is located near the south pole, which is held in place, it exerts an attractive force on the magnet.

When a magnet approaches a conducting loop, it induces a current in the coil as the magnetic field changes. When there is a changing magnetic field linked with a loop of wire, an induced electromotive force (emf) is generated in the loop according to Faraday's law of electromagnetic induction.

A current is generated in the loop as a result of the emf, which then produces its own magnetic field. When this field links with the initial magnetic field, it generates a torque that rotates the magnet. This torque is what causes the magnet to be attracted to the coil.

Lenz's law states that the magnetic field produced by the coil opposes the magnetic field that created it. As a result, the direction of the current in the coil is in the opposite direction to the change in magnetic flux passing through it.

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