What are elements with 2 electrons called?

Answer:

Physics Net Force

Explanation:

Physics Net Force

The net force is the combined force of all individual forces acting on an object. Newton's First Law can be seen to be the special case in the Second Law when F, the net force, is zero. When that happens, the acceleration a must also be zero.

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Potential difference, is same for all three resistors.

Hence, the correct option is B.

A. The current, on the other hand, is not the same for all three resistors, as it depends on the resistance of each resistor and the total resistance of the circuit.

B. The potential difference (delta V) across each resistor is the same in this circuit. This is because the circuit is a series circuit, meaning that there is only one path for the current to flow. Therefore, the same amount of charge flows through each resistor, resulting in the same potential difference across each resistor.

Hence, the correct option is B.

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Answer:

i- testing testing,, 1 2 1 2

Answer:

?

Explanation:

Did it work how you wanted?

The expected proportion of gametes produced by the F1 organisms is 1/2 FG and 1/2 fg. The correct answer is A. 1/2 FG and 1/2 fg.

Given the provided genotypes, we have a parent with the Genotype FFGG and another with the genotype ffgg. When these two organisms are crossed, the resulting F1 generation will inherit one allele from each parent for both genes. Since the genes are close together on the same chromosome, the likelihood of recombination (crossing over) is low.

Thus, the F1 organisms can produce two types of gametes: FG and fg. The genotype FFGG parent will only produce gametes with FG, while the genotype ffgg parent will only produce gametes with fg. This is because the alleles are linked and are inherited together.

Therefore, the expected proportion of gametes produced by the F1 organisms is:
- 1/2 FG (from the FFGG parent)
- 1/2 fg (from the ffgg parent)

The correct answer to your question is A. 1/2 FG and 1/2 fg.

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The box is traveling at a speed of 6.5 m/s when it returns to its starting position at the base of the incline.

To calculate the work done by friction, we need to first calculate the work done by gravity and the work done by the applied force when pushing the box up the incline.

Work done by gravity, W_gravity = mgh, where m = 5 kg, g = 9.8 m/s² (acceleration due to gravity), and h = 3sin30 = 1.5 m (height of the inclined plane)

W_gravity = (5 kg)(9.8 m/s²)(1.5 m) = 73.5 J

Work done by the applied force, W_applied = F_applied * d, where F_applied = mgsin30 = 24.5 N (component of the applied force parallel to the inclined plane), and d = 3 m (distance along the inclined plane)

W_applied = (24.5 N)(3 m) = 73.5 J

Since the box is moving with constant velocity up the incline, the net work done is zero. Therefore, the work done by friction on the way up is -73.5 J.

When the box slides back down the incline, the work done by friction is in the opposite direction to the motion of the box, so the work done by friction is positive.

Work done by friction, W_friction = F_friction * d, where F_friction = μmgcos30 = μ(5 kg)(9.8 m/s²)cos30 = μ(42.43 N) (component of the weight of the box perpendicular to the inclined plane), and μ is the coefficient of kinetic friction between the box and the inclined plane.

We don't know the value of μ, so we cannot calculate the exact value of W_friction. However, we can use conservation of energy to find the speed of the box at the bottom of the incline.

The total work done on the box is equal to the change in its kinetic energy.

Total work done = W_gravity + W_applied + W_friction = (1/2)mv² - (1/2)mu²

where v is the speed of the box at the bottom of the incline, and u is the speed of the box at the top of the incline (which is zero).

Since the net work done on the box is zero, we can write:

(1/2)mu² = W_gravity + W_applied

Substituting the values, we get:

(1/2)(5 kg)(6.5 m/s)² = 73.5 J + 73.5 J

Solving for u, we get:

u = 6.5 m/s

Therefore, the box is traveling at a velocity of 6.5 m/s when it returns to its starting position at the base of the incline. The work done by friction on the way up the ramp is -73.5 J, and the work done by friction on the way down the ramp is positive, but we cannot calculate its exact value without knowing the coefficient of kinetic friction

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Answer:

As the temperature is increased the more the energy store

Answer:

No and yes it's like a 30%or 20%

Explanation:

"researchers say that there is no proof that dimples are inherited."

meaning that if the mom or dad had dimples it might have a chance or no since a dominant trait not a recessive trait

Oh it has ! It has ! That's exactly where you get all the energy you use to think, breathe, and move.

The critical angle of fused quartz when surrounded by water and exposed to light of wavelength 589 nm is 62.65°.

For light of wavelength 589 nm, the critical angles for the fused quartz when surrounded by water can be calculated as follows:

Critical angle (θc) is defined as the angle of incidence which results in the angle of refraction being equal to 90°. For any angle of incidence greater than the critical angle, the light is totally reflected. Critical angle is calculated using the formula given below;

θc = sin-1(n2/n1)

where, n1 and n2 are the refractive indices of the first and second medium respectively.

To calculate the critical angle of fused quartz when surrounded by water, we need the refractive indices of both media. The refractive index of water is 1.33 and that of fused quartz is 1.458.

θc = sin-1(n2/n1) = sin-1(1.33/1.458)

θc = 62.65°

The critical angle of fused quartz when surrounded by water and exposed to light of wavelength 589 nm is 62.65°.

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Answer: B. Elements

Explanation:

Most things we use everyday are compounds which are composed of two or more elements.

Compound is defined as a chemical substance made up of identical molecules containing atoms from more than one type of chemical element.

Molecule consisting atoms of only one element is not called compound.It is transformed into new substances during chemical reactions. There are four major types of compounds depending on chemical bonding present in them.They are:

1)Molecular compounds where in atoms are joined by covalent bonds.

2) ionic compounds where atoms are joined by ionic bond.

3)Inter-metallic compounds where atoms are held by metallic bonds

4) co-ordination complexes where atoms are held by co-ordinate bonds.

They have a unique chemical structure held together by chemical bonds Compounds have different properties as those of elements because when a compound is formed the properties of the substance are totally altered.

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The barge will Motion 252 m³ of water while maintaining a 2.00 m top height above the water.

An object in motion maintains a straight course and a steady speed until it is affected by an unbalanced force. An object at rest maintains its state of rest. The mass of an item and the force acting on it define the acceleration of that thing.

The barge's displacement of water is proportional to its volume below the waterline.

The following formula may be used to determine the barge's volume:

Volume of barge = length × width × depth

Volume of barge = 14.0 m × 9.0 m × 4.0 m

Volume of barge = 504 m³

The top section of the barge is 2.00 m deep, so its volume can be calculated as follows:

Volume of top section = length × width × depth

Volume of top section = 14.0 m × 9.0 m × 2.0 m

Volume of top section = 252 m³

Now, the barge's displacement of water may be computed as follows:

Volume of water displaced = Volume of barge - Volume of top section

Volume of water displaced = 504 m³ - 252 m³

Volume of water displaced = 252 m³.

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 Here  the answer = 0.0080 .

Based on stokes law,

 v = g * D^2 *(d p - d m) / (18 V)

v = terminal velocity

D =  diameter of particle

V  =  Viscosity

dp =  density of particle

dm =  density of medium.

Here density of ball = 1.42 gm/cc

By substituting,

v = 9.81 x 9.52 x 10^-3 ^2 (1420 - 1300) / 18 x 1.0

=5.92x10^-4

 v(t) =0 .99 x Vtrm

  =0 .99 x  0.0059

  = 0.00059 m/s

  v(t)/Vterm =1-e^(-t/r)

  0.99 = 1 - e ^ (-t / 9.52 x 10^-3)

  e ^ (-t / 9.52 x 10^-3) = 0.01

Taking log

 -t / 9.52 x 10^-3 = -4.6

  t = 0.0438 s

Then smaller ball

v = 9.81 x 2.38 x 10^-3 ^2 (1420 - 1300) / 18 x 1.0

= 0.000037 m/s

v(t) / Vterm = 1-e^(-t/r)

0.99 = 1 - e ^ (-t / 2.38 x 10^-3)

e ^ (-t / 2.38 x 10^-3) = 0.01

Taking log

-t / 2.38 x 10^-3 = -4.6

  t = 0.0109 s

Here Reynolds number is,

R= rho vd / mu

= 1420 x  0.00059 x 9.52 x 10^-3 x / 1.0

= 0.0080

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To maintain steerage on a personal watercraft, you must apply the throttle, apply the brakes and turn hard, and drag a foot in the water,as you move forward, the watercraft will start moving in the direction you want it to go

Steering a personal watercraft is not as simple as it looks. It can be dangerous and can lead to accidents if the rider does not know how to handle the watercraft. To maintain steerage on a personal watercraft, you must first apply the throttle. As you move forward, the watercraft will start moving in the direction you want it to go. Applying the brakes and turning hard will help you steer the watercraft in the desired direction.

This is achieved by slowing down the watercraft and allowing it to turn naturally in the water. The final step is to drag a foot in the water. This is important when you want to make a sharp turn. Dragging a foot in the water helps to create a pivot point that helps you turn the watercraft in the desired direction, this technique is also used to help you maintain balance on the watercraft. So therefore to maintain steerage on a personal watercraft, you must apply the throttle, apply the brakes and turn hard, and drag a foot in the water,as you move forward, the watercraft will start moving in the direction you want it to go.

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Yes, the faster person will lap the slower person by the time the slower person completes one lap.

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The difference between the gravitational force experienced by the top and bottom objects is the force between the top objects is 3 times that of the bottom objects.

Newton's law of universal gravitation states the force of attraction between two objects is directly proportional to the product of the masses and inversely proportional to the square of the distance between the objects.

F = Gm1m2/r²

The bigger the distance of separation, the smaller the gravitational force between the object and vice versa.

The bigger the mass of the objects, the bigger the gravitational force between the objects.

Thus, the difference between the gravitational force experienced by the top and bottom objects is the force between the top objects is 3 times that of the bottom objects.

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Answer:

Below

Explanation:

VERTICAL velocity will be   v  sin 34

HORIZONTAL velocity will be   v cos 34  = 86 cos 34 = 71.3 m/s

time (t) = 45 sec

Speed (v) = 14 m/s

mass (m) = 5kg

F = Force

F = m*a

a = acceleration = Δv / Δt = 14m/s / 45 s = 0.31 m/s^2

F = 5 kg * 0.31 m/s^2 = 1.56 kgm/s^2 = 1.56 N

A meteorite crater is a depression created when a spacecraft from another planet or solar system collides with Earth or another relatively big solid body, such as the Moon, another planet and its satellites, or larger asteroids and comets. Thus, option A is correct.

A crater will most likely be created at the point of impact when a meteor impacts a planet. The size of the crater will increase as the object moves faster and becomes larger or heavier. The biggest predictors of impact crater size are the meteor's mass and velocity.

When a smaller solid object, such as an asteroid or meteorite, strikes the surface of a bigger solid object, such as a planet or moon, an impact crater is created.

Therefore, approximately big will the crater be 50 to 100 m in diameter.

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Answer:

the energy absorbed is 4.477 x 10⁶ J

Explanation:

mass of the liquid, m = 13 kg

initial temperature of the liquid, t₁ = 18 ⁰C

final temperature of the liquid, t₂ = 100 ⁰C

specific heat capacity of water, c = 4,200 J/kg⁰C

The energy absorbed is calculated as;

H = mcΔt

H = mc(t₂ - t₁)

H = 13 x 4,200(100 - 18)

H = 4.477 x 10⁶ J

Therefore, the energy absorbed is 4.477 x 10⁶ J

Answer:

unbalanced force

Explanation:

According to Newton the determining factor on if and how an object will move is the unbalanced force acting upon that object. In Newton's first law he states that an object will remain at rest unless acted on by an unbalanced force. This unbalanced force needs to be stronger than any opposite force being acted upon by the same object. Enough so that the object exits its state of rest and begins moving in the direction in which the force is being applied. If the force is not strong enough to overcome the opposite forces then the object will not move.

Direct imaging of exoplanets is currently most sensitive to (d) giant planets on wide orbits.

This is because larger planets, like gas giants, reflect more light, making them easier to detect than smaller, rocky planets. Furthermore, planets on wide orbits are easier to discern from their host star, as the star's light is less likely to overwhelm the planet's light.

In contrast, rocky planets on close orbits (a) and giant planets on close orbits (c) are harder to detect due to their proximity to the star, while rocky planets on wide orbits (b) may be too small and faint to be easily observed. Advancements in technology and observational techniques continue to improve our ability to image exoplanets, but currently, the most favorable conditions for direct imaging involve large, widely-orbiting planets. So therefore (d) giant planets on wide orbits is direct imaging of exoplanets is currently most sensitive.

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Experimental evidence that supports the new idea