An ant crawls 50 cm to the right, stops, and then crawls 30 cm to the left. Calculate the distance that the ant travels, and calculate the displacement of the ant.

A. The S.I unit of mass is kg . therefore we have to convert 4000g into kg from gram

i.e 4000g = 4 kg

B. The S.I unit of length is meter. so we have to convert 2.4 km into meters,

i.e 2.4 km = 2400 m

#A

[tex]\boxed{\sf 1kg=1000g}[/tex]

[tex]\\ \sf\longmapsto 4000[/tex]

[tex]\\ \sf\longmapsto \dfrac{4000}{1000}[/tex]

[tex]\\ \sf\longmapsto 4kg[/tex]

#B

[tex]\boxed{\sf 1km=1000m}[/tex]

[tex]\\ \sf\longmapsto 2.4km=2.4(1000)[/tex]

[tex]\\ \sf\longmapsto 2400m[/tex]

There are two primary reasons that SI is better than MKS. Both reasons come under the category that the MKS system is a proper subset of SI. That means that SI will do everything that MKS does, so you do not lose anything of MKS in going to SI but the are things that SI offers that MKS does not

(6) Wagon B is at rest so it has no momentum at the start. If v is the velocity of the wagons locked together, then

(140 kg) (15 m/s) = (140 kg + 200 kg) v

==>   v ≈ 6.2 m/s

(7) False. If you double the time it takes to perform the same amount of work, then you halve the power output:

E / (2t ) = 1/2 × E/t = 1/2 P

Answer:

Newtons First Law (The Law of Inertia)- If an object is at rest it will stay at rest until a net force acts on it. If an object is in motion it will stay in motion until a net force acts on it.

Newtons Second Law (F=ma)- Force equals the mass of an object times it's acceleration.

Newton's Third Law- For every action there is an equal and opposite reaction.

hope this helps!

Answer:

B

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Answer:

b

Explanation:

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Answer:

376 miles

Explanation:

speed = distance / time

therefore distance = speed * time

distance = 40 miles/hr * 9.4 hr

then

distance = 375 miles

Answer:

1. Right hypochondriac region (upper, right).

2.  Epigastric region (upper, middle).

3. Left hypochondriac region (upper, left).

4. Right lumbar region (middle, right).

5. Umbilical region (centre).

6. Left lumbar region (middle, left).

7. Right iliac region (lower, right).

8. Hypogastric region (lower, middle).

9. Left iliac region (lower, left).

Explanation:

1. Right hypochondriac region (upper, right)- Liver, gallbladder, right kidney, small intestine.

2.  Epigastric region (upper, middle)- stomach, liver, pancreas, duodenum, spleen, adrenal glands

3. Left hypochondriac region (upper, left)- Spleen, colon, left kidney, pancreas

4. Right lumbar region (middle, right)- Gallbladder, liver, right colon

5. Umbilical region (centre)- Umbilicus, parts of the small intestine, duodenum

6. Left lumbar region (middle, left)- Descending colon and left kidney

7. Right iliac region (lower, right)- Appendix and cecum

8. Hypogastric region (lower, middle)- Bladder, reproductive organs, sigmoid colon

9. Left iliac region (lower, left)- Descending and sigmoid colon.

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The area of the plate is 167.78 centimeters.

The area of the plate can be calculated with the equation of the area of a rectangle:

[tex] A = l*w [/tex]   (1)      

Where:

l: is the length = 24.74 cm

w: is the width = 6.78 cm

By entering the above values into equation (1) we can find the area.

[tex] A = 24.74 cm*6.78 cm = 167.74 cm [/tex]

Therefore, the area of the plate is 167.78 centimeters.

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Answer:

kinetic energy = 1/2mv²

k.E =1/2 X 0.5 X 3²

k.e = 9/4

K.E = 2.25j

Answer:

[tex]thank \: you[/tex]

Answer:

You are exactly right. The molecules in hot air are moving faster than the molecules in cold air. Because of this, the molecules in hot air tend to be further apart on average, giving hot air a lower density. That means, for the same volume of air, hot air has fewer molecules and so it weighs less

From question we have,

Now, from the second equation of motion;

Just put all the values provided in the question, in this equation;

Therefore, distance it will rise in 22 seconds will be 3726.8m

Answer:

With a force of 1 Newton, an object weighing 100 grams is dragged towards the planet's center. On Earth, an item with a mass of 100 grams has a gravitational pull of only 1%, or about kg.

Explanation:

i hope this helps

Please find attached photograph for your answer. Please do comment whether it is useful or not.

Answer:

No because the heat that moved out of the water to make ice caused an even greater disorder in the environment around it.

Explanation:

Answer:

Explanation:

The first question asks for the object's height. That is a y-dimension thing so we will use the one-dimensional formula:

[tex]v^2=v_0^2+2a[/tex]Δx and we are looking for delta x, which is the displacement of the object (here, the height since displacement in the y-dimension is height). Before we do that, though, we need to know the initial upwards velocity, which is found in:

[tex]v_{0y}=100sin(60)\\v_{0y}=90\frac{m}{s}[/tex]

And we also have to know from previous physics experience that the final velocity of an object at its max height is 0. Filling in:

[tex]0=(90)^2+2(-9.8)[/tex]Δx

[tex]0=8000-20[/tex]Δx and

-8000 = -20Δx so

Δx = 400 m

Now for the time it was in the air...we will use the simple equation

[tex]v=v_0+at\\0=90-9.8t\\-90=-9.8t\\t=9[/tex]

So the object is in the air for 9 seconds. Now we go to the other dimension, the x-dimension, to find out how far it goes horizontally. We will use the equation:

Δx = [tex]v_0t+\frac{1}{2}at^2[/tex] but first we have to find the horizontal velocity, which is NOT the same as the upwards velocity.

[tex]v_{0x}=100cos(60)\\v_{0x}=50\frac{m}{s}[/tex]

And another thing we need to know prior to solving problems like this is that the acceleration in the x-dimension is ALWAYS 0. Filling in the equation:

Δx = [tex]50(9)+\frac{1}{2}(0)(9)^2[/tex]

Δx = 500 m

We have that  the the instantaneous speed is given as

[tex]v=15m/s[/tex]

From the Question we are told that

Calculate the instantaneous speed

Accelerates at

[tex]a=10 m/s2 \\\\t= 1.5 seconds.[/tex]

Generally the equation for the  instantaneous speed is mathematically given as

[tex]v=\frac{d}{t}[/tex]

Acceleration

[tex]a=\frac{v}{t}[/tex]

Therefore

[tex]v=10*1.5\\[/tex]

[tex]v=15m/s[/tex]

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Answer:

If it measurement system were not established ,then there may create lots of problem such as: unequal measure ,anyone can get more ,or anyone can get less mass ,so on .

Answer:

High pressure squeezes the hydrogen atoms together. They must be within 1x10-15 meters of each other to fuse. The sun uses its mass and the force of gravity to squeeze hydrogen atoms together in its core. We must squeeze hydrogen atoms together by using intense magnetic fields, powerful lasers or ion beams.

Answer:

Explanation:

All of the above.

Certainly a coaster could be designed without considering any one item of mass, gravity, or rates of direction change, but the success of the ride would be highly suspect.

Ignoring mass (of cars and/or riders) could lead to support members not being strong enough.

Ignoring rates of change of direction could lead to support members not being strong enough or make the forces on the riders uncomfortable.

Ignoring gravity could lead to support members not being strong enough or make the forces on the riders uncomfortable.

In the human cannonball act makes use of of a special type of "cannon" that more safely ejects a person who acts as the "cannonball"

The world record for the longest flight by a human cannonball is approximately 194 feet and therefore the human cannon catapult that Bobo would need is one that would be able to propel him with an initial velocity of more than 120 kilometer per hour (more than the speed of the current record holder) with the cannon directed at an angle 45 degrees above the horizonal

The reason the values given above are correct is as follows:

The world record of the furthest range of the human cannonball is 193 ft. 8.8 inches. The maximum claim for the furthest range of a human cannonball is 200 ft. 4 in. Therefore, to safely set the world record would be to reach a range of 194 feet

The speed with which the world record was accomplished (120 km/jhr)  should be expected to be exceeded given, horizontal speed in free fall motion is constant (decreasing in the presence of drag), and the conditions are likely to be more or less similar

In order to reach the furthest range, R, at the possible speed, the angle of inclination of the "cannon" required is 45°, according to the range formula, which is given as follows;

[tex]Range, \ R = \dfrac{v^2 \times sin(2\cdot \theta)}{g}[/tex]

The maximum range is given where θ = 45, such that sin(2·θ) = sin(90°) = 1

A further range than the world record van be obtained using the above values

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Answer:

4000g

                                         Thank You

                                 Hope it helps

Answer:

a 4 kg

b 2400 meter

Explanation:

International system of units Sl

the units are

kelvin for temperatures

meter for distance

Ampere for electric current

Second for time

Kg for mass

...etc

Answer:

it would be c.

Explanation:

starts at zero and isn't a straight shot up

Dimentional analysis is very important in physics, because it allows finding errors in equations. We find that the following true equations

a) F= m a

b) x = 2 a t²

c) E = [tex]\frac{1}{2} }\ m \ a \ x[/tex]

d) E = m a x

The fundamental units in mechanics are;

the length [L] whose unit is the meter

The time [T] that has the second as a unit

The mass [M] with fundamental unit the kilogram (kg)

all other quantities are derived from these three fundamental units, for example velocity is

     v = x / t

we replace the units

     [v] = [L] / [T]

so the units of velocity are the distance between time.

This exercise uses the units of various quantities and asks to find if the equations are dimensionally correct.

Let's substitute the units in each expression

a) F = m a

    [M] [L] / [[T] ² = [M] [L] / [T] ²

the two sides of the expression are equal therefore the equation is correct

b) x = 2 a t²

scalar quantities have no units

    [L] = [L] / [T] ² [T] ²

    [L] = [L]

the two sides are equal, therefore the equation is correct

c) E = ½ m a x

    [M] [L] ² [T] ² = [M] [L] [T] ² [L]

    [M] [L] ² [T] ² = [M] [L] ² [T] ²

the two sides are equal the equation is correct

d) E = m a x

since scalar quantities have no units, this expression is equivalent to the expression in part c, therefore it is correct

e) F = F x / m

    [M] [L] / [T] ² = [M] [L] / [T] ² [L] / [M]

    [M] [L] / [T] ² = [L] ² / [T] ²

the two sides are different so the equation is false

In the dimensional analysis we find that expressions are true a, b, c, d  and we see that the expression e is false

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I think I have already answer this question. Anyways please do let me know whether it is useful or not

Answer:

flowers

Explanation:

flowers cannot change

The  magnitude of their resultant vector is 4.6 meters/seconds

Since we are to add the  velocity vectors in order to  find the magnitude of their resultant vector.

Hence:

Resultant vector magnitude=5.8 meters/seconds + (1.2 meters/seconds)

Resultant vector magnitude=5.8 meters/seconds-1.2 meters/seconds

Resultant vector magnitude 4.6 meters/seconds

Inconclusion The  magnitude of their resultant vector is 4.6 meters/seconds

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Answer:

infrared light

Explanation:

infrared light

Answer:

12

cause the is no longer erra