A car speeds up from 3 m/s to 10 m/s in 8 s. How far does the car travel while doing this? 2. A

Answer:

A

Explanation:

newton's law of universal gravitation states that every point mass in the universe attracts every other point mass with a force that is directly proportional to the product of their masses

Explanation:

Suppose the cheetah is initially positioned at x=0 (m) from the reference, and the gazelle is intially at poisiton x=d (m).

Then, at the worst case, that is when cheetah is running at the maximum case, the position of the gazelle relative to the reference must be larger than that of cheetah.

In equation form,

[tex]0\text{ km}+\frac{100\text{ km}}{1 \text{ hr}}\cdot30\text{ s }\cdot\frac{1\text{ hr}}{3600\text{ s}}\le d \text{ km}+\frac{80\text{ km}}{1 \text{ hr}}\cdot30\text{ s }\cdot\frac{1\text{ hr}}{3600\text{ s}}[/tex]

[tex](100-80)\cdot \frac{30}{3600}\le d[/tex]

[tex]d\ge \frac16\text{ km}=166.66 \text{m}[/tex]

The minimum distance that a gazelle running 80.0 km/hr be ahead of the cheetah to escape is 6.5807km

If a cheetah can maintain its maximum speed of 100 km/hr for 30.0 seconds, the distance covered by the cheetah is expressed as:

Distance  = Speed * time

Given the following:

Distance covered = 100 * 0.00833333

Distance covered = 0.0833 km

If gazelle is running at a speed of 80.0km/hr, the distance of gazelle will be expressed as:

Taking the difference in distance = 6.6664km - 0.0833 km =6.5807km

Hence the minimum distance that a gazelle running 80.0 km/hr be ahead of the cheetah to escape is 6.5807km

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Answer:

a

Explanation:

The bar magnet moves downward with respect to the wire loop, so that the number of magnetic field lines going through the loop decreases with time. This causes an emf to be induced in the loop, creating an electric current.

in other words, the magnets motion creates a current in the loop

Answer:

A?

Explanation:

Explanation:

The moment of A about B is given by the formula

[tex]M=Fd[/tex]

where M is the moment, F is the force acting perpandicular to the axis of rotation about B by A, and d is the horizontal distance of A from B along the axis of rotation.

Now

[tex]F=230 (N)[/tex]

(a) At X,

[tex]M=(230)(4/2)=460 (Nm)[/tex]

(b) At 0.5m from X,

[tex]M=(230)(2-0.5)=345 (Nm)[/tex]

(c) At Y,

[tex]M=-(230)(2)=-460 (Nm)[/tex]

where negative sign indicates clockwise rotation of the child about Z.

(d) At Z,

[tex]M=(230)(0)=0 (Nm)[/tex]

Question:-

Convert 4cm to m

Solution:-

Lets do

First note down the below formula

[tex]\boxed{\sf 1m=10^{2}cm}[/tex]

Then

[tex]\boxed{\sf 1cm=10^{-2}cm}[/tex]

Now we are given 4cm

So convert

[tex]\\ \sf\longmapsto 4\times 10^{-2}m[/tex]

If we simplify to decimal

[tex]\\ \sf\longmapsto 4cm=0.04m[/tex]

Hence done .

Answer:

you stop the ball or bring it to a different direction

Explanation:

i don't know if this helps. i didn't take physics yet. but i hope this helps.

If the force remains constant, then the decrease in the mass of the ball will increase the acceleration of the ball.

Force acting on a body can be defined as the changes in the state of the body of motion or rest. Force can change the speed and the direction of the moving body. The force acting on an object is related to factors which are mass and acceleration of the body.

The mathematical expression from the 2nd law of motion for force can be written as:

F = ma

We can express this equation as:

a ∝ 1/m

Therefore, the acceleration of a moving body is inversely proportional to the mass of that body.

Therefore, if we are applying the constant force on the ball, then this force can produce a greater change in the motion of the ball only if the mass of the ball will be less. Then the acceleration of the moving ball will increase.

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Answer:

simple microscope - a codenser lens is not required I simple microscopes .

compound microscope- the condenser lens is embedded in compound microscopes for adjusting the intensity of the light to magnify the object.

Explanation:

hope this helps you

mrk me brainiliest

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

[tex] \huge \fbox \colorbox{teal}{ANSWER:-}[/tex]

Newton's Third Law of Motion states: 'To every action there is an equal and opposite reaction'. ... The Third Law of Motion indicates that when one object exerts a force on another object, the second object instantaneously exerts a force back on the first object.

Answer:

Third class lever

Explanation:

Third class lever

Answer:

C

Explanation:

Options A and B are not even pointing in the direction as the vectors in the question so they shouldn't even be considered.

Option C looks like the closes since vectors A and B are pointing in a similar direction (negative x-axis)

The best representation for the resultant vector representing the resultant R=A+B would be option C because the result is represented by the closing side of the triangle, therefore the correct answer would be C.

The quantities that contain the magnitude of the quantities along with the direction are known as the vector quantities.

Examples of vector quantities are displacement, velocity acceleration, force, etc.

As given in the problem we have to find out the resultant vector from the sum of vector A and vector B,

The resultant of the vector can be calculated with the help of the triangle law of the vector addition in which the sum is given by the closing side of the triangle.

Thus, the correct answer is option C.

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[tex]\\ \sf\longmapsto Acceleration=\dfrac{v-u}{t}[/tex]

[tex]\\ \sf\longmapsto Acceleration=\dfrac{100-0}{20}[/tex]

[tex]\\ \sf\longmapsto Acceleration=\dfrac{100}{20}[/tex]

[tex]\\ \sf\longmapsto Acceleration=5m/s^2[/tex]

Answer:

[tex]initial \: velocity \: = 0 \\ final \: velocity \: 100 \frac{m}{s} \\ time = 20 \\ here \: we \: want \: to \: find \: accelaration \\ accelaration \: = \frac{final \: velocity - initial \: velocity}{time} \\ accelaration \: = \frac{100 - 0}{20} = \frac{100}{20} = 5 \frac{m}{ {s}^{2} } \\ thank \: you[/tex]

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

if an atom has an equal number of protons and electrons, its net charge is 0. If it gains an extra electron, it becomes negatively charged and is known as an anion. If it loses an electron, it becomes positively charged and is known as a cation.

hope this helps

Question should be corrected

Answer:-

See

If both are equal then

Here the given's question answer must be electron or its wrong

when we burn a paper it undergoes the combustion reaction.

Answer:

One must drive [tex]$41 \cdot 8\,miles$[/tex] north and [tex]$68 \cdot 24\,miles$[/tex] south, in order to travel from Atlanta to Macon.

Explanation:

• The distance of an object can be defined as the complete path travelled by an object.

• To find the distance, find its north component.

• For reference see the below graph:

[tex]$$\[\begin{align}& D_{south} = 80\sin \left( {58 \cdot {5^ \circ }} \right) \\& D_{north} = 80\cos \left( {58 \cdot {5^ \circ }} \right) \\\end{align}\]$$Since, $\sin \left( {58 \cdot {5^ \circ }} \right) = \cdot 853$ and $\cos \left( {58 \cdot {5^ \circ }} \right) = \cdot 5224$: therefore,$$\[\begin{align} D_{south} &= 80 \times \left( { \cdot {{853}^ \circ }} \right) \\ \Rightarrow {D_{south}} &= 68 \cdot 24\,miles \\ \end{align}\]$$[/tex]

And

[tex]$$\[\begin{align} D_{north}& = 80 \times \cdot 5224 \\ \Rightarrow D_{north}& = 41 \cdot 8\,miles \\ \end{align}\]$$[/tex]

• Hence, one must drive [tex]$41 \cdot 8\,miles$[/tex] north and [tex]$68 \cdot 24\,miles$[/tex] south, in order to travel from Atlanta to Macon.

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Answer:

The most common of these is carbon 12, 13, 14. All of these isotopes have the same atomic number but different mass numbers. Carbon has the atomic number of 6 which means that all isotopes have the same proton number. However, the number of neutrons is different, thus giving different mass numbers.

Explanation:

Mass=7 kg means that it weights 7 kg while measuring on beam balance .

Answer:

D

Explanation:

The motion of an object can be described by its speed, position, and direction so its all of the above

We have that the Magnitude of Velocity is equal to Speed when You are half way back to A from B.

[tex]4V=S[/tex]

From the Question we are told that

Trip from city A to B and back

Generally

Velocity This is defined as the distance cover over time ratio with respect to direction

While

Speed

This is the distance cover over time ratio with no regard to direction.

With the above definitions in mind

Magnitude of Velocity with respect to direction of back forth has a net of zero and

While Magnitude Speed of increases as it returns to A after going to B

in conclusion

The Magnitude of Velocity is equal to Speed when You are half way back to A from B.

4V=S

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Answer:

flowers

Explanation:

flowers cannot change

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.

Answer:

0.0035 mg

Explanation:

1 mcg = 1e-3 mg

》35 mcg = 35×10^-3 mg

= 0.0035 mg

C. The ladybug's speed and direction are not changing, so she has no acceleration.

In A, B, and D, either speed or direction are changing, and that's acceleration.

Answer:

i might be wrong here, but i`m pretty sure dimensionless things are infinite, and infinity can not be defined by a single quantity.

for example, since space is constantly expanding, it never has and never will have an actual measurement of any sort.

it is the short method of calculating economics

Answer:

Answer is A) Fermi

Explanation:

Fermi is the expressive unit for nuclear sizes. Fermi = 10^-15 meter.