PLEASE HELP ITS DUE IN 30 minutes!!! which two statements explain why a student standing at the top of a step stool doesnt move downwards

Answer:

B. 40m

Explanation:

Explanation:

A) 1.05

B) 1.33

C) 1.16

D) 0.62

All units in cm

Answer: Creative Thinking.

Explanation: Creative thinking this is a special ability possessed by individuals to see things differently or I’m a different dimension, and find new ways of solving problems. The fact it’s Creative thinking skills doesnt mean it’s for only 'creative types' like musicians. Everyone can also be a beneficiary of creative thinking from time to time. Just like in the case of the scientist above who saw an invention from his failed experiment.

Answer:

good thinking

Explanation:

gave the person above me brainy

p=d×h×g

p=1000×10×10

:.:p=100000 pa

Explanation:

p=Liquid pressure

d=Density

h=Height

g=acceleration due to gravity

T H A N K Y O U ! !

Answer:

3m/s

Explanation:

Time=5s

Distance =15m

Speed=distance/time

Putting the values

Speed=15m/5s

Speed=3m/s is the answer

Hope it will help you. :)

Answer:

Stable atom

Explanation:

A stable atom is one that has a balanced nuclear inter-particle force reaction as such the binding energy of a stable atom is sufficient to permanently keep the nucleus as one unit. Examples of a stable atom are the atoms of  monoisotopic elements such as fluorine, sodium, iodine, gold, aluminium, and cobalt.

In a stable atom the expected number of proton, neutron, and electron are present while in an unstable atom or radioactive atom, there are more than the expected number of neutrons or protons, such that the internal energy of the nucleus is excessive and more than the binding energy, which can lead to radioactive decay.

Answer: 3,602.4 km

Explanation:

Ok, the distance between the sun and the nearest star is 4.22 light-years.

1 light-year = 9.461x10^12 km

4.22 light-years. = 4.4*(9.461x10^12 km) = 41.6284x10^12km.

Now, the radius of the Sun is:

r1 = 693,340 km

The radius of the grapefruit is around:

r2 = 6cm

Then in this new scale, 6 centimeters are equivalent to  693,340 km.

Now, how many times there are 693,340 km in 41.6284x10^12km?

We can take the quotient:

N = (41.6284x10^12km/ 693,340 km)  = 60,040,384.

Then, the distance between the sun-grapefuit and the nearest star will be  60,040,384 times 6 centimeters:

Distance = 60,040,384*6cm = 360,242,304 cm ≈ 3,602.4 km

Answer:

Explanation:

standard decimal form  of 6.36*10^4 is

6,3600.0

Answer:

Your pulse rate will be the same as it was while you were on Earth.

Explanation:

Since you are on the ship, and you have the same speed with the ship, then, you'll observe your heart rate to be the same as your heart rate while you were on Earth. This is because there is no relative speed between you and the ship, since you're both on the same frame of reference.

Answer:

The students displacement is 3·√3 blocks, 45° North of West

Explanation:

From the question, we have;

The distance North in which the student walks = 3.0 blocks

The next walking distance West by the student = 3.0 blocks

The displacement of the student = The shortest distance between the student start and final point

By representing the motion of the student in vector format, we have;

[tex]\mathbf{d} = 3\cdot \hat{i} + 3\cdot \hat{{j}}[/tex]

Therefore the magnitude of d is given as follows;

[tex]\left | d\right | = \sqrt{3^2 + 3^2} = 3\cdot \sqrt{3} \ blocks[/tex]

The direction of the student = tan⁻¹(3/3) = 45° West of North

The students displacement = 3·√3 blocks, 45° North of West.

Answer:

4230.77s

Explanation:

We know: t=D/S, 550 km =550,000 m, so you can get the time by dividing 130 from 550000, you can get: 550000/130 approximately equals to 4230.77s. :) If I am correct, Mark the Brainlist, plz :D

It would take 4230.7692 seconds for a satellite to travel 550 km at a rate of 130 m/s

The total displacement covered by any object per unit of time is known as velocity. It depends on the magnitude as well as the direction of the moving object.

The mathematical expression for velocity is given by

velocity= total displacement/Total time

As satellite has  to travel 550 km

1Km =1000 m

550 km = 550000 m

Time is taken by satellite to travel 550000 m by velocity rate of 130 m/s

Time =  displacement/velocity

         =550000/130 seconds

          =4230.7692 seconds

Thus, the satellite will take 4230.7692 seconds

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Answer:

Explanation:

4 meters east

Answer: 75.02 m

Explanation:

u = 0 ( starts from rest )

v = 50 m/s

t = 3 s

( i ) a = v - u / t

= 50 - 0 /3

= 16.67

( ii ) s = ut + 1/2 at²

= 0 × 3 + 1/2 × 16.67 × 3 × 3

= 75.02 m

Hope this helps...

Answer:

minimum interface length = 1.36 mm

Explanation:

given data

weight of the bug = [tex]10^{-4}[/tex] N

solution

we will apply here Surface Tension formula that is

Surface Tension ,σ = Force ÷ length      ........................1

and we consider here surface tension for water is 7.34 × [tex]10^{-2}[/tex] N/m

so that here minimum interface length needed to support the bug is

minimum interface length = Force ÷ σ

minimum interface length = [tex]10^{-4}[/tex]  ÷ 7.34 × [tex]10^{-2}[/tex]

minimum interface length = 1.36 mm

Answer:

The answer's A

Explanation:

Have a good day! :)

Option A is correct. the equation that can be used to solve the acceleration is expressed as [tex]t = \frac{\triangle V}{a}[/tex]

Acceleration is defined as the change in velocity of a body with respect to time. Mathematically;

[tex]a=\frac{\triangle V}{t}[/tex] where:

Making the time "t" the subject of the formula:

[tex]t = \frac{\triangle V}{a}[/tex]

Hence the equation that can be used to solve the acceleration is expressed as [tex]t = \frac{\triangle V}{a}[/tex]

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Answer:

b decreases as a increases and c stays constant

It all depends on the definitions of a, b, and c, and the relationship among them. Your question doesn't give us any of this information.

Answer:

When air is flushed into the ball, the elastic lining inside is expanded. This happens because when too much air enters, there is a lacking of space inside. Therefore the air with pressure pushes the walls of the ball and results in inflation.(same like after you have excess food your stomach inflates)

It depends on what direction you are running in, if it's forward, you'll have to keep to accelerating forward to keep running.

If you stop accelerating forward, you wouldn't be able to move forward.

Answer:

33.6 m

Explanation:

Given:

v₀ = 0 m/s

a = 47.41 m/s²

t = 1.19 s

Find: Δx

Δx = v₀ t + ½ at²

Δx = (0 m/s) (1.19 s) + ½ (47.41 m/s²) (1.19 s)²

Δx = 33.6 m

Answer:

Turn the vehicle to the left, in order to reduce the momentum on the car during sackcloth

Explanation:

In the case of a collision on the right side, two things can be done to reduce the damage caused.

* Turn the vehicle to the left, in order to reduce the momentum on the car during sackcloth

* Decrease the speed, to have a less change in the amount of movement.

Answer:84 generations

Explanation:

A generation is about one-third of a lifetime. Approximately how many generations have passed since the year 0 AD? Approximately 84 generation.

Answer:

B is the answer to this question

Answer:

True

Explanation:

For Example

Walking is a form of exercising without realising it

when you think you are creating blood flow which is oxygen which generates energy with that being said could be considered exercising no matter what you do in a result of energy in the body you are exercising.

Answer:

when the light is reflected from a surface the angles of incident is always equal to the angles of reflected where both angles are measures from the path of the light to the normal to the surface at the point at which light stricks the surface . this equality is known as the law of reflection .

Since the angle of reflection is 60 degrees, the angle of incidence is also 60 degrees.

The laws of reflection describe the behavior of light when it is reflected off a smooth surface, such as a plane mirror. There are two laws of reflection:

1. The angle of incidence is equal to the angle of reflection: When a light ray strikes a surface, the angle between the incoming ray and the surface (the angle of incidence) is equal to the angle between the reflected ray and the surface (the angle of reflection). This law holds true for all angles of incidence.

2. The incident ray, the reflected ray, and the normal to the surface all lie in the same plane: The normal is an imaginary line perpendicular to the surface at the point where the ray strikes the surface. The incident ray is the incoming ray of light, and the reflected ray is the ray that bounces off the surface. Both of these rays, along with the normal, all lie in the same plane.

These laws can be used to predict the path of reflected light and to determine the position and size of an image formed by a plane mirror. The angle of incidence and angle of reflection can be measured using a protractor, and the normal can be found by drawing a line perpendicular to the surface at the point of incidence.

Here in the Question,

According to the law of reflection, the angle of incidence (i) is equal to the angle of reflection (r), which means:

i = r

The angle of incidence = Angle of reflection = 60 degrees.

Therefore, The angle of incidence is also 60 degrees since the angle of reflection is 60 degrees.

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Answer:

kinetic energy=1/2mv^2.

which is 4320000=1/2×m×23^2.

which is 4320000=1/2×m×529.

4320000=264.5m.

m=4320000/264.5.

m=16332.70~16333g

The mass of a car that has a kinetic energy of 4,320,000 J moving at 23 m/s would be 16332.70 Kg

Mechanical energy is the combination of all the energy in motion represented by total kinetic energy and the total potential energy stored energy in the system which is represented by total potential energy.

Total mechanical energy is s the sum of all the kinetic as well as potential energy stored in the system.

ME = KE + PE

As given in the problem we have to calculate the mass of a car that has a kinetic energy of 4,320,000 J moving at 23 m/s

K.E = 4,320,000 J

v = 23 m/s

The total kinetic energy

KE = 1/2mv²

By substituting the respective values in the formula of kinetic energy

4,320,000 J  =1/2m23²

m = 4,320,000×2/23²

m = 16332.70 Kg

Thus, The mass of a car that has a kinetic energy of 4,320,000 J moving at 23 m/s would be 16332.70 Kg

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