The top pair of pliers failed to loosen a stubborn bolt, but the bottom pair successfully removed it.


Explain why the bottom pair of pliers might have made it easier to loosen the bolt, while the top pair failed.
Use your knowledge of mechanical advantage and ideal mechanical advantage to describe how simple machines can change the relationship between distance and force.

The statement 'research indicates that genetics does not influence levels of aggression' is False.

Behavioral genetics is a branch of the genetics field aimed at understanding behavioral human patterns.

In conclusion, the statement 'research indicates that genetics does not influence levels of aggression' is False.

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Hello always here to help!!!!

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Existing rocks come together under great heat and pressure to generate metamorphic rocks. Marble, schist, slate, and quartzite are examples of metamorphic rocks. Heat and pressure cause chemical changes in minerals, resulting in metamorphic rocks. They are frequently encountered near magma, but unlike igneous rock, they do not melt.

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The speed of an airplane that normally flies at 200 km/h when it encounters an 80 km/h wind from the side will be 215.4065 m/sec.

Speed is defined as the rate of change of the distance or the height attained. It is a time-based quantity. It is denoted by u for the initial speed while v for the final speed. Its SI unit is m/sec.

The resultant or the net value of the velocity is found as;

[tex]\rm V_{net}=\sqrt{ V_A^2+V_B^2} \\\\ \rm V_{net}=\sqrt{(200)^2+(80)^2} \\\\ V_{net}=\sqrt{46400} \\\\ V=215.4065\ km/h[/tex]

Hence,  the speed of an airplane will be 215.4065 m/sec.

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The lifting force applied by the person in lowering the basket is determined as 7.8 N.

The lifting force applied by the person is determined from Newton's second law of motion.

F = mg - ma

F = m(g - a)

where;

F = 1(9.8 - 2)

F = 7.8 N

Thus, the lifting force applied by the person in lowering the basket is determined as 7.8 N.

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Answer:

Because it can desolve many many things.  

Explanation:

Answer:

a

Explanation:

maybe b but I think it's a

Because the measurement of motion is dependent on the observer's position or reference frame.

Answer:

To find the mass using density and volume we just multiply them against each other which causes ml to cancel and just leaves us with grams which represents how much the item weights.

[tex]mass=density*volume[/tex]

[tex]mass=0.875\frac{g}{ml}*4.0\ ml[/tex]

[tex]mass=3.5\ g[/tex]

Therefore, our final answer is that our pencil weight 3.5 grams

Hope this helps!  Let me know if you have any questions

Answer:

432 60 27 4.14 10 9 1=15000

Answer:

   Find the original location of the decimal.

   Determine if the number will be positive or negative.

   Move the decimal point until it creates a number between one and ten.

   Count how many times you moved the decimal.

Explanation:

Answer:

Circle

Explanation:

Actually its Eclipse or ecliptial path.

Force varies inversely with square of distance.

Remember Gravitation?

Yes

F is inversely proportional to r²

So it's eclipse

Recheck if a option given or circle is most likely correct

[tex](R_1 +R_2)||R_3\\\\R_{eq} = \left(\dfrac 1{R_1 + R_2} + \dfrac 1{R_3}} \right)^{-1}\\\\\\~~~~~~=\left( \dfrac{1}{100+200} + \dfrac 1{600} \right)^{-1}\\\\\\~~~~~~=\left( \dfrac{1}{300} + \dfrac{1}{600} \right)^{-1}\\\\\\~~~~~~=\left(\dfrac{3}{600} \right)^{-1}\\\\\\~~~~~~=\dfrac{600}3 \\\\\\~~~~~~= 200~ \Omega[/tex]

The equation is

[tex]\\ \rm\Rrightarrow N(t)=N_o(e^{-\lambda t})[/tex]

Put values

[tex]\\ \rm\Rrightarrow N(180)[/tex]

[tex]\\ \rm\Rrightarrow N_o(e^{-0.00125(180)}[/tex]

[tex]\\ \rm\Rrightarrow N_o(e^{-0.225})[/tex]

[tex]\\ \rm\Rrightarrow 0.798N_o[/tex]

Or

Answer:

Answer:2nd question answer is 2.75Explanation:

Mass of ball is missing in your 1st question.

for 2nd question,

Small cart,

m1 = 1.25kg

u1 = 2.5m/sec

v1 = -0.94m/sec ( negative sign indicate opposite motion)

Large cart,

m2 = ?

u2 = 0 m/s

v2 = 1.56 m/sec

from conservation of linear momentum,

m1*u1 + m2* u2 = m1*v1 + m2*v2

1.25*2.5 + m2*0 = 1.25*-0.94 + m2*1.56

3.125 + 0 = -1.175 + 1.56*m2

3.125 + 1.175 = 1.56*m2

4.3 = 1.56*m2

m2 = 4.3/1.56

m2 = 2.75 kg

if they stuck together instead of bounced. then,

total mass of bodies (m)= m1+m2= 4kg

final velocity of bodies (v) = ?

From , conservation of linear momentum,

m1*u1 + m2* u2 = m*v

1.25*2.5 + 2.75*0 = 4*v

3.125 = 4*v

v = 3.125/4

v = 0.78125 m/ sec.

The large cart has a mass of 2.75kg. This can be identified from the law of conservation of momentum. Its unit is kg.s⁻¹/m.

Momentum is the quantity that describes the motion of the body. The momentum equals the product of mass and velocity. Momentum= Mass/velocity. It depends on the velocity as velocity changes momentum also changes.

The law of conservation of momentum states that the initial and final momentums are the same in the system. It shows that the momentum of the system remains constant, before and after the collision.

In an isolated system of two bodies acting on each other, total momentum remains constant in the absence of external forces. It can neither be created nor destroyed.

Law of conservation of momentum:

Total momentum before collision = Total momentum after the collision

m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂

From the givens,

Mass of small chair, m₁ = 1.25kg,

The initial speed of the small chair before the collision, u₁ = 2.5 m/s,

The final speed of the small chair after the collision, v₁  = - 0.94 m/s (negative sign opposite sign),

The initial speed of the large chair before the collision, u₂ = 0 (large chair is at rest before the collision),

The final speed of the large chair after the collision, v₂ =  1.56 m/s,

The mass of a large chair m₂ =?

From the conservation of momentum:

m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂

(1.25×2.5) + (m₂×0) = (1.25(-0.94) + (m₂×1.56)

3.125 + 0 = - 1.175 +( m₂×1.56)

3.125+1.175 = ( m₂×1.56)

4.3 / 1.56 = m₂

m₂ = 2.75kg

Hence, the mass of a large chair, m₂ = 2.75kg.

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Answer:

the answer is equal to visible light , ultraviolet, x-rays, gamma rayst

The sequence of types of electromagnetic radiation is arranged from that with the least to the most energetic photons will be visible light , ultraviolet, x-rays, gamma rays.

Electromagnetic radiation is a type of energy that is transmitted in incident photons as both magnetic and electric waves.

Electromagnetic radiation has a spectrum with varying wavelengths and frequencies, which gives it different properties.

Electromagnetic radiation is a type of energy that travels in packets of energy called photons as both electrical and magnetic waves.

Wave-particle duality is the name given to this phenomenon. This is a notion that defines how a wave behaves whether it behaves like particles, waves, or both particles and waves.

Hence the sequence of types of electromagnetic radiation is arranged from that with the least to the most energetic photons will be  visible light , ultraviolet, x-rays, gamma rays.

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The electric field strength created by a charge decreases with increasing distance from the charge. The relationship between the electric field strength (E) and the distance (r) from the charge is given by the inverse square law:

E ∝ 1/r^2

Let's consider the given scenario:

At a distance of 40 cm (0.4 m) from the charge, the electric field strength is measured as 8 N/C.

We want to determine the electric field strength at a distance of 80 cm (0.8 m) from the charge when the charge is reduced to 1/2 Q.

First, we can set up a proportionality based on the inverse square law:

(E1)/(E2) = (r2^2)/(r1^2)

Substituting the given values:

8/E2 = (0.8^2)/(0.4^2)

Simplifying the equation:

E2 = 8 * (0.4^2)/(0.8^2)

E2 = 8 * 0.16/0.64

E2 = 2 N/C

Therefore, at a distance of 80 cm from the charge, when the charge is reduced to 1/2 Q, the electric field strength would be 2 N/C.

The strength of an electric field depends on the magnitude of the charge creating the field and the distance from the charge. In this case, since the charge is reduced to 1/2 Q, the electric field strength is also halved.

Additionally, as we move twice as far away from the charge (from 40 cm to 80 cm), the electric field strength decreases according to the inverse square law. As a result, the electric field strength is reduced to 2 N/C at a distance of 80 cm.

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The number of protons, electrons, and neutrons in the atom of cr-24 is 28, 24, and 24 respectively.

An atom is the smallest unit of matter, consisting of the positively charged nucleus and the electrons which move around it. The atom can not be divided further.

The atom of a matter is made by three elements-

The atom of cr-24 has the atomic number 24. The atomic number of atom is equal to the number of proton and electron in an atom. Thus,

[tex]\rm Proton=24\\\rm Electron=24[/tex]

Now, if this atom has the mass number of 52 (most common). Then the number of neutron is,

[tex]\rm Neutrons=Mass\; Number-Atomic\; Number\\\rm Neutrons=52-24\\\rm Neutrons=28[/tex]

Thus, the number of protons, electrons, and neutrons in the atom of cr-24 is 28, 24, and 24 respectively.

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Answer:

0.015A

Explanation:

I=V/R

=1.5/100

0.015A

Just apply ohm's law

Answer:

Explanation: O B. Diffraction

Answer: i think Hubble's Law basically states that the greater the distance of a galaxy from ours, the faster it recedes

Explanation:

The change in the internal energy of a system is equal to the difference in energy transferred to or from the system as heat and work done.

Work done is the energy needed or supplied to perform any task.

The first law of thermodynamics gives the relation between the heat and work done.

The heat added to a system is divide into two. One portion adds up heat to increase the internal energy and the left heat is used to do work.

ΔQ = ΔU + W

ΔU = ΔQ -W

Thus, the first law of thermodynamics states that the change in the internal energy of a system is equal to the difference in energy transferred to or from the system as heat and work done.

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Answer:

Environmental science is the dynamic, interdisciplinary study of the interaction of living and non-living parts of the environment, with special focus on the impact of humans on the environment.

Explanation:

Answer:

Push-ups. Let M1 be the mass of the body and M2 be the mass of weights. Assume that M1 must be heavier than M2. Since M1 is heavier, M1 requires more force, and therefore work to be applied, let F1=M1*g. To bring our body back up, we need a force bigger or equal (if already in motion) to F1.

Let F2 = M2*g

Since F1 has to be bigger than F2 due to mass, we can build an equation for energy. Let X be a displacement, which is equal in both situations. Constructing a change of energy equation we can see that work done to lift the body is greater:

W1=F1*x

W2=F2*x

Where W1 is the work of the hands-on body, and W2 is the work of lifting weights. W1 has to be larger than W2. Since more work in W1, more muscle will be needed to complete a repetition, but only assuming that M1 > M2.

Answer:

N~ f fric m 1~g The acceleration of the car can be calculated using v2 f v 2 i = 2a x a = v2 2 x = (72000 3600) 2 2 30 = 6:67m=s2 On the other hand, Projecting 2nd Law on the y-axis gives N=mg; For the book to slide o the seat, acceleration should overcome frction: f s < ma sN < ma smg < ma s = 0:650 < a g = 6:67 9:81 = 0:68

Explanation:

First you get the data:

Time conversion: hours to seconds:

[tex]\bf{2\not{h}*\left(\dfrac{3600 \ seg}{1\not{h}}\right)=7200 \ seg }[/tex]

We calculate the distance, using the formula:

                           [tex]\bf{d=t*v }[/tex]

                           [tex]\bf{d=3600\not{seg}*3\frac{m}{\not{m}} }[/tex]

                           [tex]\bf{d=21600 \ m}[/tex]

Answer: I travel to 21600 meters.

Answer:

The Fulcrum is the pivot in the middle and the Force is applied with your hand at the end. The item being cut has a “Shear” force applied to it by the blades.

Hope it helps :))

Answer:

See below

Explanation:

 to the force of kinetic friction

If the forces on an object are greater than zero,the object will definitely in the motion. This concept in accordance with law of inertia.

Force is defined as the push or pulls applied to the body. Sometimes it is used to change the shape, size, and direction of the body.

Newton's law of inertia states that a body wants to continue its motion until the external force is not acted on it.

Hence, if the force is grater than zero, the body will be in motion.

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