At what rate, in m/s2, does gravity cause objects to accelerate on Earth? Do not include units in your answer.

Answer:

5×10¯⁴ m².

Explanation:

From the question given above, the following data were obtained:

Pressure (P) = 200 N/m²

Weight = Force (F) = 0.1 N

Area (A) =?

Pressure, force and area are related by the following equation:

Pressure (P) = Force (F) / Area (A)

P = F / A

With the above formula, we can obtain the area of the coin as follow:

Pressure (P) = 200 N/m²

Weight = Force (F) = 0.1 N

Area (A) =?

P = F / A

200 = 0.1 / A

Cross multiply

200 × A = 0.1

Divide both side by 200

A = 0.1 / 200

A = 5×10¯⁴ m²

Thus, the area of the coin is 5×10¯⁴ m².

Answer:

Laws

Explanation:

Laws are a primary way discourage drinking and driving

A primary way to discourage drinking and driving is Law.

The person who takes in alcohol and then drives on the road. This is strictly prohibited.

Laws against the  'drinking and driving' will make people get scared of getting charged or sentenced to jail for some years. Lot of accidents have caused when there were no laws against the action.

Thus, Laws are a primary way to discourage drinking and driving.

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Answer:

Explanation:

The weaker force is pulling to direction East(450 newton)

the net force is (500-450=50 newton) and will move toward west ( in 500 newton direction)

Answer:

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lol Thank you

Answer:AAAAAAHHHHH scary :c

Explanation:

Answer:

a refractor telescope

Explanation:

Answer:

a. refractor telescope

The statement 'the effects of an increasing BAC are not linked to the passage of time' is False.

The abbreviation BAC indicates 'blood alcohol concentration' and it is a  measure that allows us to know the amount of alcoholic content.

In conclusion, the statement 'the effects of an increasing BAC are not linked to the passage of time' is False.

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Answer:

50m

Explanation:im just smart thank me later

The range is 80 meter and  the stone is 4.04 second in air​.

When a particle is hurled obliquely near the surface of the earth, it travels along a curved path while accelerating continuously in the direction of the planet's center (we assume the particle stays close to the surface of the globe). Such a particle's motion is known as projectile motion, and its route is referred to as a projectile.

Given that: maximum height obtained by the projectile; H = 20 m.

Let initial velocity = u

For maximum range:

H = u²/4g

u = √(4gH) = 28 m/s

and  the range  of the projectile = u²/g = 4H = 4 ×20 m = 80 m.

Total time of flight = √2· u/g = √2 ×28/9.8 = 4.04 second.

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Explanation:

u = Initial velocity = 20m/s

v = Final velocity = 0m/s

a = Acceleration = -5m/s²

We wish to find s, the displacement of the car.

Using Kinematics, we have v² = u² + 2as.

Therefore (0)² = (20)² + 2(-5)s, and s = 40m.

Answer:

The answer is Spring Potential

Explanation:

Because all the others are a mechanical form of energy

Answer:

4:1

Explanation:

Given that the initial speed of the first car, u = 2v while the initial speed of the second car, u = v. To find the distance travelled, we are going to apply one of the equations of motion. The equation chosen is

v² = u² - 2as, where

s = the distance needed

a = acceleration due to gravity

u = initial velocity which is v & 2v

v = final velocity which is 0

For the first car with initial velocity, 2v, on substituting into the equation, we have

v² = u² - 2as(1)

0 = 4v - 2as(1)

4v = 2as(1)

2v = as(1), making s(1) subject of formula we have

s(1) = 2v/a

Taking the second car, we have u = v

v² = u² - 2as(2)

0 = v - 2as(2)

v = 2as(2), making s(2) subject of formula, we have

s(2) = v/2a

Not, ratio of s1 : s2 =

2v/a : v/2a

s1/s2 = 2v/a ÷ v/2a

s1/s2 = 2v/a * 2a/v

s1/s2 = 4av/av

s1/s2 = 4/1

Therefore, the ratio of the first car to the second car is 4:1

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Answer:

The total mass of the atmosphere is  4.508 x 10⁹ kg

Explanation:

Given;

thickness of gas layer, h = 6.8 km

density of Earth's atmosphere, ρ = 1.3 kg/m³

the surface area of Earth is given as 5.10 x 10⁸ km²

Volume of the atmosphere is calculated as;

V = Ah

where;

A is the surface area of Earth

h is the thickness of gas layer

V = (5.10 x 10⁸ km²)(6.8 km)

V = 3.468 x 10⁹ km³

The total mass of the atmosphere is calculated as;

mass = density x volume

m = ρV

m = (1.3 kg/m³)(3.468 x 10⁹ km³)

m = 4.508 x 10⁹ kg

Therefore, the total mass of the atmosphere is 4.508 x 10⁹ kg.

Answer:

Nuclear Fusion reactions power the Sun and other stars. In a fusion reaction, two light nuclei merge to form a single heavier nucleus. The process releases energy because the total mass of the resulting single nucleus is less than the mass of the two original nuclei.

Explanation:

The sun's energy comes in the form of a nuclear reaction due to the Two nuclei joining to form a larger nucleus. Thus option A is correct.

A nuclear fusion is a reaction in which 2 or more atomic nuclei combine to form one or more atomic nuclei and is manifested by the release or the absorber of energy.

This is due to the differeces in the nuclear binding energy due to the force of nuclei before and after the reaction. The process releases energy as single declines less than the mass of the original nuclei.

Find out more information about the nuclear reaction.

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Answer:

Friction is the force that opposes movement between moving objects.

The angle at which one object starts to slip on the other is directly related to the coefficient. When the two objects are horizontal there is no frictional force. So, the coefficient of static friction is equal to the tangent of the angle at which the objects slide. A similar method can be used to measure μk.

Explanation:

Answer:

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Explanation:

The resistance that one surface or object encounters when moving over another

Answer:Liquid water is denser than Ice.

Ice float on top of liquid water.

Explanation:

Just trust me

Answer:

the second to last by the north pole

Explanation:

Answer:

Ro = 8.65 [g/cm³]

Explanation:

We must remember that density is defined as the ratio of mass to volume.

[tex]Ro=m/V[/tex]

where:

m = mass = 0.450 [kg] = 450 [g]

V = volumen = 52 [cm³]

Ro = density [g/cm³]

Now replacing:

[tex]Ro = 450/52\\Ro = 8.65 [g/cm^{3} ][/tex]

Answer:

4.692m

Explanation:

The distance that this boy climbed = 12.0m

The velocity = 3.0m/s

We are to find how far forward this apple goes before it hits the ground.

We have y = 1/2gt²

X = v*t

T = 1.564 seconds

X = 3x1.564

X = 4.692m

Therefore the ball goes a distance of 4.692m forward before it then hits the ground.

Answer: 162500000

Explanation:

given data:

wire diameter = 1.8mm

wire length = 15cm

current = 260mA.

electron charge e = [tex]1.6*10^{-19} C[/tex]

Solution:

[tex]I = \frac{q}{t}[/tex]

where:

[tex]I = current\\\\q = charge\\\\t = time \\\\q=It\\\\q= 260mt[/tex]

[tex]q=ne\\\\n = \frac{q}{e} \\\\n= \frac{260*10^{-3} t}{1.6*10^{-19} } \\\\n= 162500000t\\\\\frac{n}{t} = 162500000[/tex]

number of electrons per seconds would be 162500000

Answer:

The mass of the Planet X is 9.595 x 10²⁴ kg.

Explanation:

mass of the object, m = 0.5 kg

radius of the Planet X, r = 4 x 10⁶ m

weight of the object, W = F = 20 N

let the mass of the Planet  X = mₓ

Apply Newton's gravitational law;

[tex]F = \frac{Gmm_x}{r^2} \\\\m_x = \frac{Fr^2}{Gm} \\\\m_x = \frac{(20)(4\times 10^6)^2}{6.67 \times 10^{-11} \ \times \ 0.5} \\\\m_x = 9.595 \times 10^{24} \ kg[/tex]

Therefore, the mass of the Planet X is 9.595 x 10²⁴ kg.

Answer:

sample B

Explanation:

The samples given all have the same mass which is 100g but their volume differs significantly.

Density is the mass per unit volume of a substance. The mass is the amount of matter contained in a substance. Volume is the space a body occupies.

 Density  = [tex]\frac{Mass}{Volume}[/tex]  

Density is inversely proportional to volume. The higher the volume the lesser the density provided the mass is constant.

So, the sample with the least volume will have the greatest density value.

This sample is sample B

Answer:

the answer is b

Explanation:

Answer:

pendulum

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Answer:

335 ft/s

Explanation:

In this question, we have a very important factor missing. The equation of the projectile. So, in simplifying the question I'm going to assume an equation which you can correct thereafter

s(t) = -4.9t² + v(0)t + s0

From the question, we're told that v(0) = 384 ft/s, so if we apply that, we have

s(t) = -4.9t² + 384t + s0, where s0 = 0

On differentiating the equation, we have

s(t) = v(t) = -4.9(2t) + 384(1)

v(t) = -9.8t + 384

Now, at time t = 5 seconds, the velocity v =

v(t) = -9.8(5) + 384

v(t) = -49 + 384

v(t) = 335 ft/s

Therefore, the velocity of the projectile after 5 seconds is 335 ft/s. Please leave a like if it helped you.

Answer:

i think b

Explanation:

Answer:

0.007

Explanation:

A = F/P

Force = 1730

P = 2.45 = 2.47 * 10^5

1730/(2.47*10^5) = 0.007

Answer:

Hi.

The answer to this problem is 0.007

Explanation:

It was correct for Acellus

How to solve it:

P=F/A

Rearrange it for A, plug in the numbers and solve!

A=F/P

F=1,730

P=2.45