With all his gear, Neil Armstrong weighed 360 pounds on Earth. When he landed on the Moon, he weighed 60 pounds. Why? A. His mass changed while traveling to the Moon. B. The gravity on the Moon is six times the gravity on Earth. C. The gravity on the Moon is less than the gravity on Earth. D. He experienced the effects of a gravity slingshot.

Answer:

1 mm

Explanation:

E = ½ kx²

0.025 J = ½ (50,000 N/m) x²

x = 0.001 m

x = 1 mm

Answer:

160 m

Explanation:

For computing the distance first we have to determine the acceleration which is shown below:

v = u + at

where,

v = 0 = initial velocity

u = 40 = uniformly to a speed

t = 8 = time

So, the a is

= 40 ÷ 8

= 5 m/s

Now we have to use the distance formula i.e

d = ut + 1 ÷ 2 at^2

= 1 ÷2 × 5 × 8^2

= 160 m

Basically we have to applied the above formulas so that the distance could come

Answer:

Women are now allowed to participate in the Olympics. The original Olympic Games were open only to men.

Modern Olympic Games include many more events. The first Olympics included only a running event. Today, there are more than 20 different sports and almost 300 events.

The Olympics are held every two years, alternating between summer and winter. The ancient Olympics were originally held every four years in Olympia.

Athletes from countries around the world participate in the modern Olympics. The ancient Olympics consisted of athletes only from ancient Greece.

Explanation:

plato

Answer:

gas is non-renewable resource

Explanation:

Answer:

Gas

Explanation:

There are two types of energy sources, renewable and non-renewable.

Solar energy, wind energy, and hydroelectric are an example of renewable energy.

Fossil fuels like gas, coal, and petroleum are an example of non-renewable energy.

Answer:

v = 4.03 m/s

Explanation:

It is given that,

Distance covered by a lizard, d = 2.1 m

Time taken by lizard, t = 0.52 s

We need to find the average speed of the lizard. The distance covered divided by time taken is called the average speed of lizard. So,

[tex]v=\dfrac{d}{t}\\\\v=\dfrac{2.1\ m}{0.52\ s}\\\\v=4.03\ m/s[/tex]

So, the average speed of the lizard is 4.03 m/s.

Answer: 4.02 not 4.03

Explanation: I did on khan academy

Answer:

action = reaction

land accepts

reaction force acts on the apple

Answer:

15 Newton

Explanation:

According to Newton's third law of motion, "Every action has a reaction which is equal in magnitude but opposite in direction" (Right now, we're not talking about direction, so we'll ignore it)

So,

Action Force = Reaction Force

Reaction Force = 15 N

The action force is by the Earth on the Apple, So the reaction force will be by the Apple on the Earth.

Answer:

0.255

Explanation:

The following data were obtained from the question:

Force (F) = 57 N

Mass (m) = 22.8 Kg

Coefficient of static friction (µ) =...?

Next, we shall determine the normal reaction (R). This is illustrated below:

Mass (m) = 22.8 Kg

Acceleration due to gravity (g) = 9.8 m/s²

Normal reaction (R) =?

R = mg

R = 22.8 x 9.8

R = 223.44 N

Finally, we can obtain the coefficient of static friction (µ) as follow:

Force (F) = 57 N

Normal reaction (R) = 223.44 N

Coefficient of static friction (µ) =...?

F = µR

57 = µ x 223.44

Divide both side by 223.44

µ = 57/223.44

µ = 0.255

Therefore, the coefficient of static friction (µ) is 0.255.

Answer:

.255

Explanation:

I'm also on acellus and it's the right answer

Answer:

The answer is either looking glass or stained glass.

Explanation:

The popular glass used in astrology is stained glass which is popular in symbolization of huge astrology figures. As for looking glass, it's more popular in astrological souvenirs or objects.

Answer:

i think answer is pisces horoscope

Starting from rest, the disc completes [tex]\theta[/tex] revolutions after [tex]t[/tex] seconds according to

[tex]\theta=\dfrac\alpha2t^2[/tex]

with angular acceleration [tex]\alpha[/tex]. It completes 10 rev in 2 s, which means

[tex]10\,\mathrm{rev}=\dfrac\alpha2(2\,\mathrm s)^2\implies\alpha=5\dfrac{\rm rev}{\mathrm s^2}[/tex]

Find the time it takes to complete 20 rev with this acceleration:

[tex]20\,\mathrm{rev}=\dfrac12\left(5\dfrac{\rm rev}{\mathrm s^2}\right)t^2\implies t=\sqrt8\,\mathrm s\approx2.83\,\mathrm s[/tex]

so it takes approximately 0.83 s to complete 10 more rev.

Answer:

25000 N

Explanation:

[tex]force \: = pressure \times area \\ = 50000 \times 0.5 \\ = 5000 \times 5 \\ = 25000 \: N[/tex]

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◦•●◉✿What does E mc2 actually mean?

E = mc2. It's the world's most famous equation, but what does it really mean? "Energy equals mass times the speed of light squared." On the most basic level, the equation says that energy and mass (matter) are interchangeable; they are different forms of the same thing.✿◉●•◦

Answer:

because lwhen they are made longer than the turning effect of force is more and its easy to work it out.

Answer:

Energy is stored in the bonds between atoms

Answer:

Energy is stored in the bonds between atoms

Explanation:

Ape-x

Answer:

D. not enough information to decide

Explanation:

i dont understand >.<

Answer:

acceleration due to gravity = 9.8m/s^2

universal gravitational constant= 6.67×10 ^_11 nm^2 kg_2

now, ratio=9.8/6.67×10^_11.

Answer:

Output work is always less than input work due to effect of friction. Machines are frictionless in practice, the efficiency of a machine can never be 100%.

Hope this helps..

Good luck on your assignment..

Answer:

Friction

Explanation:

Answer:

El conductor no puede evitar el choque.

Explanation:

Primero, convierta la velocidad del conductor a m / s:

1 km/h = 0.277778 m/s

126 km/h = 126 * 0.277778 = 35 m/s

La velocidad del automóvil es de 35 m / s.

El conductor presiona los frenos con una aceleración de -3.5 m / s² para evitar un choque a 150 m por delante.

Veamos qué distancia se moverá el automóvil después de que comience a desacelerar.

Utilizaremos una de las ecuaciones de movimiento lineal de Newton:

[tex]v^2 = u^2 + 2as[/tex]

donde v = velocidad final = 0 m / s (el automóvil debe detenerse)

u = velocidad inicial = 35 m / s

a = aceleración = -3.5 m / s².

s = distancia recorrida

Por lo tanto:

[tex]0 = 35^2 + (2 * -3.5 * s)\\\\=> 1225 = 7.0s\\\\s = 1225 / 7 = 175 m[/tex]

Esto significa que el automóvil se detendrá a 175 m.

Por lo tanto, a esa velocidad y aceleración, el conductor chocará contra el árbol caído porque el automóvil no podrá detenerse antes de alcanzar la posición del árbol.

Answer:

180.28 km/h

Explanation:

Let north and south represent the positive and negative y axis and east and west represent the positive and negative x axis.

Given;

Velocity of wind vx= 100 km/s

Velocity of aircraft in still air vy = 150 km/s

The resultant velocity Vr is;

Vr = √(vx^2 + vy^2)

Vr = √(100^2 + 150^2)

Vr = 180.2775637731 km/h

Vr = 180.28 km/h

Answer:

[tex]27.5\ m[/tex]

Explanation:

As we know that volume of cylinder is

[tex]v=\pi r^{2} *h[/tex]

Where v=volume , h= height or thickness and r= radius

Here,

[tex]v= 10 m ,\ diameter= 10, \ r=\frac{diameter}{2} \ r=\frac{10}{2}\\ r=5[/tex]

Putting these values in the previous equation , we get

[tex]10\ = \frac{22}{7} *5 *5*h\\ 14\ =\ 110*h\\h=\frac{110}{14} \\h=\frac{55}{2} \\\\h=27.5\ m[/tex]

Therefore thickness is 27.5 m

The Available options are:

A. Award an indirect free kick to Team B for incidental contact.

B.  Award a direct free kick to Team B.

C.  Allow play to continue as the handling was incidental but issue a caution to the player at the next stoppage of play.  

D.  Allow play to continue.

Answer:

Allow play to continue.

Explanation:

IFAB (International Football Association Board) has approved various means to clarify the issue of handball in foodtball.

Hence, some of the cases include:

1. Should the the ball touches a player's hand/arm immediately from their own head/body/foot or the head/body/foot of another player.

2. the ball touches a player's hand/arm close to their body and has not made their silhouette unnaturally bigger.

3. a player is falling and the ball touches their hand/arm when it is between their body and the ground (but not extended to make the body bigger).

4. Additionally, should the goalkeeper attempt to clear a ball from a teammate but fails, the goalkeeper is allowed to handle the ball.

Hemce, Since a14 who did not see the ball coming and the ball strikes her in the back of the hand as her hand is at her side. the proper call would be to: ALLOW PLAY CONTINUE

Answer:

340 kg/m³

Explanation:

[tex]Relative density \: = \frac{density \: ofsubstance}{density \: of \: equal \: volume \: ofwater} [/tex]

density of water = 1000 kg/m³

density of the liquid = 0.34 × 1000

= 340 kg/m³

Answer:

52.5 J

Explanation:

Work done (W) is the product of the force (F) applied on a body and the distance (s) moved in the direction of the force.

i.e W = F × s

It is a scalar quantity and measured in Joules (J).

Given that: F = 35.0 N and s = 1.50 m, then;

W = F × s

W = 35.0 × 1.5

   = 52.5 J

Therefore, the work done on the sleigh by Samuel is 52.5 J.

Explanation:

We need to find the speed of a 3.1eV proton and a 3.1eV electron.

For proton, using conservation of energy such that,

[tex]\dfrac{1}{2}m_pv_p^2=eV\\\\v_p^2=\dfrac{2eV}{m_p}\\\\v_p=\sqrt{\dfrac{2eV}{m_p}}[/tex]

[tex]m_p[/tex] is mass of proton

[tex]v_p=\sqrt{\dfrac{2\times 3.1\times 1.6\times 10^{-19}\ J}{1.67\times 10^{-27}\ kg}}\\\\v_p=2.43\times 10^5\ m/s[/tex]

For electron,

[tex]\dfrac{1}{2}m_ev_e^2=eV\\\\v_e^2=\dfrac{2eV}{m_e}\\\\v_e=\sqrt{\dfrac{2eV}{m_e}}[/tex]

[tex]m_e[/tex] is mass of proton

[tex]v_e=\sqrt{\dfrac{2\times 3.1\times 1.6\times 10^{-19}\ J}{9.1\times 10^{-31}\ kg}}\\\\v_e=1.44\times 10^6\ m/s[/tex]

Hence, this is the required solution.

Answer:

Atomic clocks are the most accurate time and frequency standards known, and are used as primary standards for international time distribution services, to control the wave frequency of television broadcasts, and in global navigation satellite systems such as GPS.

Answer:

gamma rays, ultraviolet, infrared, radio

Explanation:

Because on the Electromagnetic spectrum wavelength increases from the gamma end to radio end and frequency decrease in that order

Answer:

radio → infrared → ultraviolet → gamma

Explanation: yeaaahhh its c

Answer:

As the distance between a satellite in a circular orbit and the central object increases, the period of the satellite increases .

Explanation:

Answer:

Increases

Explanation:

Answer:

Anything that can be measured is called a physical quantity. It is described with the help of magnitude and the unit. There are two types

1) Base quantity

2) Derived Quantity

Answer:

A physical quantity is the quantity that can be measured directly or indirectly and consists of a magnitude and a unit. Mass, length, time, density, temperature etc are some examples of physical quantities. Happiness, sadness etc cannot be measured. So, they are not physical quantities. We cannot find the exact value of any physical quantity without measurement.

There are two types of physical quantity. They are:

Hope this helps...

Good luck on your assignment...

Answer:

your eyes would get seriously damaged

Explanation:

when you look directly at the sun, the sun shines it's rays directly to your eyes , which damage them. that's why you should always wear sunglasses in that type of weather, and never point directly at the sun. if you find this answer helpful, mark it as brainliest.

Answer:

do you mind telling me what is it your asking so i can help ?

Explanation: