1.Energy is used when a force acts over a.....................
.................................................

2.All objects have the same weight have:

a)the same place on Earth
b)the same mass
c)the same volume
d)pull of gravity on them

​

Answer:

it is called fluid friction.

Answer:

lol While plastic and wood aren't great thermal conductors, they conduct heat faster than air does. Even if the toilet seat is at the same temperature as the air around it, it will feel colder to your but t because heat will move from your skin to the seat at a faster pace Air just doesn't conduct heat very quickly.

Explanation:

Answer:

there is the answer

Explanation:

Newton's second law of motion pertains to the behavior of objects for which all existing forces are not balanced. The second law states that the acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object. The acceleration of an object depends directly upon the net force acting upon the object, and inversely upon the mass of the object. As the force acting upon an object is increased, the acceleration of the object is increased. As the mass of an object is increased, the acceleration of the object is decreased.

Answer:

because the distance increased while the speed stayed the same

Explanation:

Answer: A curved line on a distance time graph tell us that the speed is changing but the object is either getting faster or the accelerating or slowing down the decelerating.

Explanation: Hope this helps

Answer:

The Mechanical Advantage (MA) of a tool is the ratio of the output force to the input force. In the case of a screwdriver, the output force is the force applied to the tip of the screwdriver, and the input force is the force applied to the handle.

To calculate the MA of the screwdriver, we need to use the following formula:

MA = Output Force / Input Force = (Distance from the center to the outermost edge of the tip) / (Distance from the center to the outermost edge of the handle)

The radius from the center to the outermost edge of the tip of the screwdriver is 50.0 mm and the radius of the handle is 240 mm. To find the distance, we need to double the radius.

Distance from the center to the outermost edge of the tip = 2 * 50.0 mm = 100.0 mm

Distance from the center to the outermost edge of the handle = 2 * 240 mm = 480.0 mm

Now we can use the formula to calculate the MA:

MA = 100.0 mm / 480.0 mm = 0.208333

So the MA of the screwdriver is 0.208333. This means that for every 1 N of force applied to the handle, the tip of the screwdriver will exert 0.208333 N of force on the screw.

Explanation:

Answer:

False the universe has not always existed the way it does now.

Explanation:

Answer: False

Explanation: The Universe continues to expand even today, growing at a rate of 6.5 light-years in all directions per year as time goes on.

Answer:

Explanation:

24 i think

Answer:

B. 24

Explanation:

There are 24 atoms in one molecule of C6 H12 06. This chemical compound is made up of 6 atoms of carbon, 12 atoms of hydrogen, and 6 atoms of oxygen. We find the number of atoms by adding these numbers up. We than get:

6 + 12 + 6 = 12 + 12 = 24

Therefore, there are 24 atoms in the following chemical formula.

To react completely with 0.500 L of volume of 0.500 M Na2CO3, you would need 0.250 L of 2.00 M HCl.

Write down the balanced chemical equation for the reaction between HCl and Na2CO3:

2 HCl + Na2CO3 → 2 NaCl + H2O + CO2

Determine the stoichiometry of the reaction:

From the balanced equation, we can see that 2 moles of HCl react with 1 mole of Na2CO3.

Calculate the number of moles of Na2CO3:

Given that the volume of Na2CO3 solution is 0.500 L and the concentration is 0.500 M, we can use the formula:

Moles = Concentration × Volume

Moles of Na2CO3 = 0.500 M × 0.500 L = 0.250 moles

Use the stoichiometry to determine the number of moles of HCl needed:

According to the stoichiometry of the balanced equation, 1 mole of Na2CO3 reacts with 2 moles of HCl.

Therefore, to react with 0.250 moles of Na2CO3, we would need 2 × 0.250 = 0.500 moles of HCl.

Convert moles of HCl to volume:

Given that the concentration of HCl is 2.00 M, we can use the formula:

Volume = Moles / Concentration

Volume of HCl = 0.500 moles / 2.00 M = 0.250 L

Convert the volume to liters:

The final answer is 0.250 liters of 2.00 M HCl are needed to react completely with 0.500 L of 0.500 M Na2CO3.

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The can be obtained by using the balanced chemical equation: Na2CO3 + 2 HCl → 2 NaCl + H2O + CO2  Write the balanced chemical equation for the reaction.

Na2CO3 + 2 HCl → 2 NaCl + H2O + CO2

Calculate the number of moles of Na2CO3. Using the formula n = c × V, where n is the number of moles, c is the concentration, and V is the volume, we get:

n = c × V

= 0.500 M × 0.500 L

= 0.250 mol

Calculate the number of moles of HCl required.The balanced chemical equation shows that 2 moles of HCl react with 1 mole of Na2CO3. Hence, the number of moles of HCl required can be calculated as follows

:n(HCl) = 2 × n(Na2CO3)

= 2 × 0.250 mol

= 0.500 mol

Calculate the volume of 2.00 M HCl required.The number of moles of HCl required is 0.500 mol. Using the formula V = n/c, where V is the volume, n is the number of moles, and c is the concentration, we get:

V = n/c

= 0.500 mol ÷ 2.00 M

= 0.250 L

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The period of oscillation of a spider hanging on a silk thread, tapped once every second, is one second.

What is the period of oscillation of a spider hanging on a silk thread when tapped once every second?

The time it takes for one complete up-and-down motion of the spider on the silk thread is called the period of oscillation, denoted by T. We know from the problem statement that the spider has the largest amplitude on its bungee cord when tapped exactly once every second.

If the tapping is done exactly once every second, then the spider is experiencing a periodic force with a frequency of 1 Hz. In this case, the period of oscillation T is equal to the reciprocal of the frequency, which is:

T = 1/f = 1/1 Hz = 1 second

Therefore, the spider completes one full oscillation (i.e., up-and-down motion) every second.

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Answer:

Newton's second law states that the acceleration of an object is directly related to the net force and inversely related to its mass. Acceleration of an object depends on two things, force and mass.

Explanation:

here this may help.

Answer:

Costa Rica

Explanation:

Answer:

If an object moves in the opposite direction of a conservative net force, the potential energy will increase; and if the speed (not the velocity) of the object changes, the kinetic energy of the object also changes.

Explanation:

Hope i explained that clearly...  :)

Answer:

False

Explanation:

Electrons

Answer:

2.38 m/s

Explanation:

Momentum is conserved:

m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂

After the collision, they move at the same speed, so v₁ = v₂ = v.

m₁u₁ + m₂u₂ = (m₁ + m₂) v

Plugging in numbers:

(115 kg) u₁ + (133 kg) (-1.59 m/s) = (115 kg + 133 kg) (0.250 m/s)

u₁ = 2.38 m/s

The term personality traits has to do with the essentials of a person. One of the five big  personality trait that affects people negatively if they have to much of it is neuroticism.

The term personality traits refers to those traits that characterize an individual. They have the capacity to affect a person positively or negatively.

One of the five big  personality trait that affects people negatively if they have to much of it is neuroticism.

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Answer:

D

Explanation:

Leading zeros are never significant even if they are on the right side of a decimal.

0.32 has 2 significant digits.

0.0032 still only has 2 significant digits.

a

sorry if its not right

planets

Explanation:

0.1 km/min

Explanation:

1 km every 10 minutes

A decimal point is a point or a dot that is used to distinguish between a whole number and its fractional component.

It also goes by the name Decimal Mark. The decimal point's symbol is (.). Decimals are also used frequently in everyday life. The symbol of decimal point is (.).

The place value of a decimal number is recognised according to the position of the dot or decimal point. The first digit to the right of the decimal point indicates the number of tenths and the second digit to the right indicates the number of hundreths. For example, 0.8 can be written as 8/10 as a fraction.

Note that an overview was given as the information is incomplete.

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What does your model look like and the one it's being compared to?

Answer:

you should prolly put the model

Explanation:

The current through resistor R3 is 0.33 A. A circuit with three resistors connected in series is shown below: Circuit diagram of three resistors connected in series As per the given information, R2 has a resistance of 200 ohms and a voltage drop of 30 volts.

Therefore, the voltage drop across R1 is V1 = V - V2 - V3V = voltage supplied to the circuit = voltage drop across R1 + voltage drop across R2 + voltage drop across R3R1 = Resistance of resistor R1.R2 = Resistance of resistor R2 = 200 Ω.V3 = Voltage drop across resistor R3.I3 = Current through resistor R3.To calculate the current in resistor R3, let's follow the steps given below.Step 1: Find the voltage drop across R1.Using Ohm's Law, the voltage drop across R2 is V2 = IR2Substitute the values of V2 and R2 to get the value of current I.I = V2/R2I = 30/200I = 0.15 A

Using Kirchhoff's voltage law, the voltage drop across R1 isV1 = V - V2 - V3V = V1 + V2 + V3Substitute the values of V, V2, and V3 to get the value of V1.V1 = V - V2 - V3V1 = 100 - 30 - V1V1 = 70 VStep 2: Find the current through R3.Using Ohm's Law, the voltage drop across R3 is V3 = I3R3.Substitute the values of V3 and R3 to get the value of current I3.I3 = V3/R3I3 = (V - V1 - V2)/R3I3 = (100 - 70 - 30)/R3I3 = 0.33 A

Therefore, the current through resistor R3 is 0.33 A.

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Answer:

Its 5 single cell batteries cannected in series

Explanation:

The kinetic energy of Shawn, if the he has a mass of 43. 8 kg is 14.18 J.

This is the energy of a body due to its motion.

To calculate Shawn's kinetic energy, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, Shawn's kinetic energy is 14.18 J.

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Sand dunes during the Dust Bowl are an example of windward.

The sand dunes are formed due to high movement of wind in the deserts which make dunes in the direction where wind is moving. Windward refers to facing the wind or situated on the side facing the wind.

So in those regions where the wind moves bring sand with itself and make dunes in that area so we can conclude that sand dunes are formed in the windward regions.

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The lens moved a distance equal to its focal length, which can be calculated using the given information about the image and object heights.

To determine how far the lens moved, we can use the lens formula and the magnification formula. Let's denote the initial position of the lens as x = 0 cm and the final position as x = d cm.

In the initial position, the lens creates an upright image twice the height of the object. Using the lens formula:

1/f = 1/v - 1/u,

where f is the focal length of the lens, v is the image distance, and u is the object distance.

Since the image is upright and twice the height of the object, we have:

v = -2u.

Plugging these values into the lens formula, we get:

1/f = -1/2u - 1/u,

1/f = -3/2u.

Now, let's consider the final position of the lens. The lens creates an inverted image twice the height of the object. Using the same lens formula, we have:

1/f = 1/v - 1/u,

1/f = -1/v - 1/u.

Since the image is inverted and twice the height of the object, we have:

v = -2u.

Plugging these values into the lens formula, we get:

1/f = -1/-2u - 1/u,

1/f = 3/2u.

Now, by comparing the expressions for 1/f in the initial and final positions, we can equate them:

-3/2u = 3/2u.

Simplifying, we find:

u = 0.

This means that in the final position, the object is located at the focal point of the lens. Therefore, the lens moved a distance equal to its focal length.

Therefore, the lens moved a distance equal to its focal length, which can be calculated using the given information about the image and object heights.

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Answer:

His conclusion best illustrates a pessimistic outlook.

Explanation:

As seen in the question above, Ken got 20% of his final grade in the first test he did for this class, that is, there will be other tests that can provide him to reach the grade needed to pass the class. However, even if there are possibilities, he believes that he will not pass the class, he does not have a positive and optimistic view of his future in this class and is sure that he will fail. This negative view of the future is an example of a pessimistic outlook.

After slowing down by 15 miles per hour and reducing the speed by one third, you are now going at 60 miles per hour.

If you are initially driving at a rate of one and a half miles per minute, it means you are traveling at a speed of 90 miles per hour (since there are 60 minutes in an hour).

In the second step, you slow down by 15 miles per hour. This reduces your speed to 75 miles per hour.

Finally, you reduce your speed by one third, which means you need to subtract one third of 75 from 75. One third of 75 is 25, so subtracting 25 from 75 gives you a speed of 50 miles per hour.

Therefore, after slowing down by 15 miles per hour and then reducing your speed by one third, you are now traveling at a speed of 50 miles per hour.

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Answer:hereeee for pointssss only

Explanation:

The acceleration of gravity on Ganymede will be \(g=0.35\ \frac{m}{s^2}\)

It is given that for a simple pendulum on Ganymede

Lenth= 1.00 m

the time period  T= 10.5 sec

The formula for a time period of simple pendulum will be

\(T=2\pi\sqrt{\dfrac{l}{g} }\)

By rearranging the formula

\(g=l\times (\dfrac{2\pi}{T} )^2\)

\(g=1\times (\dfrac{2\pi}{10.5} )^2=0.3577\frac{m}{s^2}\)

\(g=0.3577\ \frac{m}{s^2}\)

Thus the acceleration of gravity on Ganymede will be \(g=0.35\ \frac{m}{s^2}\)

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Answer:

Explanation:

The momentum of an object can be found by using the formula

momentum = mass × velocity

From the question we have

momentum = 2000 × 3

We have the final answer as

Hope this helps you