most deserts are associated with the ________.subtropical lowsubtropical highpolar lowpolar high

HERE'S YOUR ANSWER

Explanation:

Antimatter is a material composed of so-called antiparticles. It is believed that every particle we know of has an antimatter companion that is virtually identical to itself, but with the opposite charge. For example, an electron has a negative charge.

Answer:

Gravitational potential energy

Explanation:

Gravity would act upon it if it were not suspended.

Answer: Gravitational potential energy

Explanation: I did the quiz! Hope it helped!

A sonar echo returns to a submarine 2.30 s after being emitted. The distance to the object creating the echo is 1702m

Let's understand the solution in detail,

The speed of sound in water is equal to 1480m/s

The time the waves take to hit the object and return back to the receiver is 2.30s

As we already know distance = speed x time

So the distance of the object = (speed x time)/2

We are dividing the distance by two because sound travels the same distance while reaching the object from the emitter and reaching back to the receiver after getting reflected by the object.

Therefore the distance comes out as \(\frac{1480 x 2.30}{2}\)

which is equal to 1702 meters

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   Liquids are pourable because they do not maintain a "solid" structure as solids do, but still have structure, unlike gasses. Why is this? The forces between liquid particles are weaker than the forces between solid particles. The particles are further apart and move around more easily.

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     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

The magnitude of the charge on each electrode is approximately 0.4516 nC (nanocoulombs).

To find the magnitude of the charge on each electrode of a parallel-plate capacitor, we can use the formula:

Q = C * V

Where:

Q is the charge on each electrode,

C is the capacitance of the capacitor,

V is the potential difference (voltage) across the capacitor.

The capacitance (C) of a parallel-plate capacitor is given by:

C = ε₀ * (A / d)

Where:

ε₀ is the vacuum permittivity (ε₀ ≈ 8.854 x 10⁻ F/m),

A is the area of one electrode,

d is the separation distance between the electrodes.

Given:

Diameter of the electrodes = 4.8 cm,

Radius of the electrodes (r) = 4.8 cm / 2 = 2.4 cm = 0.024 m,

Separation distance between the electrodes (d) = 2.4 mm = 0.0024 m,

Electric field strength (E) = 2.0 x 10⁶N/C.

First, let's calculate the area (A) of one electrode:

A = π * r²

= π * (0.024 m)²

Next, we can calculate the capacitance (C) using the formula mentioned above:

C = ε₀ * (A / d)

= (8.854 x 10⁻¹² F/m) * [(π * (0.024 m)²) / 0.0024 m]

Once we have the capacitance, we can calculate the charge (Q) on each electrode using the formula Q = C * V. The potential difference (V) is related to the electric field strength (E) and the separation distance (d) by the equation V = E * d:

V = E * d

= (2.0 x 10⁶ N/C) * 0.0024 m

Now we can find the charge (Q) on each electrode:

Q = C * V

Finally, to express the answer in nanocoulombs, we can convert the charge from coulombs to nanocoulombs by multiplying by 10⁹.

The magnitude of the charge on each electrode is approximately 0.4516 nC (nanocoulombs).

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Answer:

the wavelength is 9.8 meters

Explanation:

We can use the relationship:

Velocity = wavelenght*frequency.

Initially we have:

wavelenght = 4.9m

velocity = 9.8m/s

then:

9.8m/s =  4.9m*f

f = 9.8m/s/4.9m =  2*1/s

now, if the velocity is doubled and the frequency remains the same, we have:

2*9.8m/s = wavelenght*2*1/s

wavelenght = (2*9.8m/s)*(1/2)s = 9.8 m

Answer:

9.8

Explanation:

Answer:

Yes, that is correct, although most velocity is calculated via m/s and therfore you would multiply your 3 hours by 60 twice. Much of the information given is irrelevant and just trying to confuse.

Explanation:

Answer: He's a superhero in a fictional world

Explanation: Superheroes, such as Superman and Flash, defy physics because they were created as a form of entertainment. The DC world isn't realistic. Don't think too much on it.

Answer:

As rainwater falls, it is naturally soft. However, as water makes its way through the ground and into our waterways, it picks up minerals like chalk, lime and mostly calcium and magnesium and becomes hard water. ... Even hair washed in hard water may feel sticky and look dull.

Explanation:

The near side of the Earth is 12740 km closer to the Moon than the far side. As a result, the near side experiences a gravitational force that is 7% stronger than the far side.

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Isaac Newton used Kepler's Laws in part to derive his Law of Universal Gravitation, and he was the first person to recognize the law of inertia.

Option b is correct, as Isaac Newton indeed used Kepler's Laws of Planetary Motion to formulate his Law of Universal Gravitation. Newton realized that the motion of objects on Earth and in space could be explained by the same fundamental principles.

Additionally, option c is also correct, as Newton was the first person to recognize and describe the law of inertia, which states that an object at rest tends to stay at rest, and an object in motion tends to stay in motion with the same speed and direction unless acted upon by an external force.

Option a is incorrect because Newton did not invent the refracting telescope, although he made improvements to it. Option d is also incorrect because Newton's Laws of Motion were developed independently and not simultaneously with Galileo.

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Answer:

1000 g

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

mass = Density × volume

From the question we have

mass = 5 × 200

We have the final answer as

1000 g

Hope this helps you!! Good luck <3

Answer:

energy which a body possesses by virtue of being in motion

Explanation:

The expected wavelength at which spinach leaf extract would absorb the least light is around 660 nm, corresponding to the color red.

In the spectrophotometer experiment, the absorption spectrum of a substance, such as the spinach leaf extract, is determined by measuring the amount of light absorbed at different wavelengths. The absorption spectrum indicates the wavelengths at which the substance absorbs light most strongly and least strongly.

In the case of spinach leaf extract, chlorophyll is the primary pigment responsible for absorption. Chlorophyll absorbs light most strongly in the blue and red regions of the visible spectrum, while reflecting or transmitting green light, which is why plants appear green to our eyes.

Based on the absorption characteristics of chlorophyll, it is expected that the spinach leaf extract would absorb the least light, and therefore have the lowest absorbance, at a wavelength around 660 nm, corresponding to the color red. At this wavelength, chlorophyll absorbs less light, allowing more of it to be transmitted or reflected, resulting in lower absorption readings in the spectrophotometer.

It is important to note that the exact wavelength at which the spinach leaf extract absorbs the least light may vary depending on the specific sample and experimental conditions, but it generally falls within the red region of the spectrum.

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The brightness and intensity of a color are defined by its saturation. To lower the saturation of a pigment hue, both white and black (grey) are added to the color.

What does saturation mean in color?

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The acceleration motion, the position versus time graphs are: Linear graph, Quadratic graph, position-time graph.

Linear graph: The position-time graph could be a straight line with a slope. The slope reflects velocity, and the line's curvature indicates constant acceleration.

Quadratic graph: A concave-up parabolic curve could be the position-time graph. With steady acceleration, the curve shows position change.

Position-time graph: The position-time graph might be a cubic curve with a stronger curvature. With steady acceleration, the curve shows position change.

The graph's shape depends on beginning conditions like position, velocity, and acceleration. Position-time graphs for constant acceleration motion are shown in the three cases.

A positive-slope linear graph.

Concave-up quadratic graph.

Graph with constant positive slope and horizontal line.

Graph with horizontal line and steady positive slope.

These graphs indicate constant accelerating motion since their position changes over time.

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Position versus Time graphs for constant acceleration motion can be represented in the following ways: a straight line,  a curved line, an upward sloping parabola and a downward sloping parabola

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Surface tension is defined as the force per unit length required to break the surface film of a liquid and is commonly measured in units of Newtons per meter (N/m).

The molecules of a liquid are held together by attractive forces known as intermolecular forces. At the surface of the liquid, the molecules are subjected to unbalanced intermolecular forces that pull them inward, causing the surface to behave as if it were under tension.

This tension is what causes liquid surfaces to form into a distinct shape, such as a droplet, and to resist external forces that try to deform or break the surface. Surface tension is a physical property of a liquid that arises from the cohesive forces between the molecules at the surface of the liquid.

The magnitude of the surface tension depends on the nature of the liquid and the surrounding environment, such as temperature and pressure. It can also be affected by the presence of impurities or surfactants, which can alter the intermolecular forces at the surface.

Surface tension has important practical applications, such as in the formation of bubbles and the behavior of fluids in capillary tubes. It is also a key factor in the wetting and spreading of liquids on surfaces, as well as in the formation of emulsions and foams.

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Answer:

18.3Ω

Explanation:

Resistance can be found using the formula:

Resistance = \(\frac{Voltage}{Current }\)

Voltage = 110 volts

Current = 6.0 amperes

∴ Resistance = \(\frac{110}{6}\)

= 18.3 Ω ( to nearest 3 significant figures)

The thermometer measures the starting temperature as,

The temperature required for the boiling the water is

(a). The temperature requires to boil is,

b) accelerate to the left as much more pressure is pulling it in that direction and on the right however , there is less force .

The minimum  speed that the second swimmer must have in order to catch up with the first swimmer by the end of the  pool is; 4.04 m/s

We are given the following facts;

Formula for time taken is;

time = distance/speed

Time taken by swimmer 1 for one leg;

t₁ = 50/3.9

t₁ = 12.82 s

Since swimmer 1 has a head start of 0.45 s, then time that swimmer 2 must use in order to catch up is;

t₂ = 12.82 -0.45

t₂ = 12.37 s

Thus, speed of swimmer 2;

v = 50/12.37

v = 4.04 m/s

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A BTU is the amount of energy required to raise the temperature of one pound of water by one degree Celsius: False

The energy needed to raise the temperature of one pound of water by one degree Fahrenheit is known as a BTU.

British thermal units are used to assess the capacity of the majority of air conditioners (BTU). One pound (0.45 kilos) of water needs one BTU of heat to increase its temperature by one degree Fahrenheit (0.56 degrees Celsius). One tonne is 12,000 BTU in terms of heating and cooling.

Heat is measured in British thermal units. One BTU is about 1055 joules (J), the joule being the current SI unit for heat energy.  This represents the fact that the temperature change of a mass of water caused by the injection of a particular quantity of heat (measured in energy units, often joules) varies somewhat depending upon the water's beginning temperature.

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Answer: 0.899

Explanation:

acellus

Answer: 0.899

Explanation: It's right in acellus I just did it

Answer:

If a person rows a boat directly west of a stream that flows south, the resultant velocity of the boat will depend on the speed and direction of the stream and the speed at which the person is rowing.

If the person is rowing faster than the speed of the stream, the resultant velocity of the boat will be in a direction between west and southwest. This is because the velocity of the stream is directed towards the south, and the velocity of the boat is directed towards the west. The resultant velocity will be the vector sum of these two velocities, which will have a direction between the two velocities.

However, the exact direction of the resultant velocity will depend on the specific speeds and angles involved.

The magnitude of the average force exerted on the glove by the other boxer is approximately 1844 N .

When a boxer delivers a punch, it imparts a linear impulse to the target.

The magnitude of the impulse is equal to the change in momentum of the target.

The duration of contact between the boxer's fist and the target determines the average force exerted on the target.

In this problem, the linear impulse delivered by the hit of a boxer is 236 N·s, and the contact time is 0.128 s.

To find the average force exerted on the glove by the other boxer, we can use the definition of impulse:

Impulse = Force x Time

Rearranging this formula, we get:

Force = Impulse / Time

Substituting the given values, we have:

Force = 236 N·s / 0.128 s = 1843.75 N

Therefore, the magnitude of the average force exerted on the glove by the other boxer is approximately 1844 N.

It is important to note that this calculation assumes that the contact force is constant during the entire duration of contact, which may not be the case in reality.

In addition, the force experienced by the target may vary depending on the angle and location of the punch.

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When accelerating upward, T > w. At constant velocity upward, T = w. Upward motion with downward acceleration, w > T. Tension force T can be calculated using T = m * (a + g) in part (a), T = m * g in part (b), and T = m * (a - g) in part (c).

In this scenario, the elevator experiences a net upward force. According to Newton's second law of motion (F = ma), the net force is equal to the mass of the elevator multiplied by its acceleration. Since the elevator is accelerating upward, the tension force in the cable must be greater than the weight force to provide the necessary net upward force.

At a constant velocity, the elevator experiences zero net force. The tension force in the cable and the weight force due to gravity are balanced, resulting in an equilibrium situation. The tension force is equal to the weight force, ensuring the elevator maintains a steady upward motion.

In this case, the elevator is decelerating or slowing down while still moving upward. The net force acting on the elevator is downward, and it is provided by the weight force due to gravity. The tension force in the cable is smaller than the weight force to create this net downward force.

Using Newton's second law of motion (F = ma), we can determine the net force acting on the elevator. The net force is equal to the tension force minus the weight force, which is the product of the mass and acceleration. Setting up the equation, we have T - w = m * a. Substituting the known values and solving for T, we find the tension force to be T = m * (a + g), where g is the acceleration due to gravity. This result is consistent with the answer in part (a) because the elevator is accelerating upward.

At a constant velocity, the elevator experiences zero net force, so the tension force in the cable must be equal to the weight force. Therefore, T = w = m * g. Plugging in the given values, we find that T = 1,500 kg * 9.8 m/s², which confirms the consistency with the answer in part (b).

In this case, the net force acting on the elevator is downward, which is provided by the weight force due to gravity. The tension force in the cable is smaller than the weight force, creating the necessary net downward force. Using Newton's second law of motion, T - w = m * a, we can determine T. Plugging in the given values, we find T = m * (a - g), where g is the acceleration due to gravity. This result is consistent with the answer in part (c) because the elevator is decelerating or slowing down while moving upward.

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A shorter moment arm (a muscle's tendon inserts closer to joint center) results in a decreased torque force and increased movement speed compared to that of a longer moment arm.


The moment arm refers to the perpendicular distance between the line of action of a force and the axis of rotation. In the context of muscles, the moment arm is the distance between the joint center and the point where the muscle's tendon inserts. When the moment arm is shorter, the lever arm is reduced, resulting in a smaller torque force. Torque is the rotational force generated by the muscle to produce movement around a joint. With a shorter moment arm, the muscle has a smaller lever arm to exert force, leading to a decrease in torque force.

On the other hand, a shorter moment arm allows the muscle to exert force closer to the axis of rotation, resulting in a faster movement speed. This is because the distance traveled by the muscle during contraction is reduced, leading to a quicker motion.In summary, a shorter moment arm leads to a decreased torque force and increased movement speed compared to that of a longer moment arm.

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The velocity of the ball when it exits the launching ramp (\(V_ramp\)) ≈ 9.90 * 3.6 km/h (to convert m/s to km/h).

\(V_ramp\) ≈ 35.64 km/h

To calculate the speed of the ball when it leaves the launching ramp, we use the equation\(V_ramp\)= \(\sqrt{(2 * g * h)}\), where g is the acceleration due to gravity and h is the height of the ramp.

This equation is derived from the conservation of energy principle, converting gravitational potential energy to kinetic energy. The resulting speed, \(V_ramp\), is expressed in meters per second (m/s).

To convert it to other units, such as kilometers per hour (km/h), multiply by the appropriate conversion factor. It's important to note that specific values for the height and acceleration due to gravity are necessary for accurate calculations.

To calculate the speed of the ball when it leaves the launching ramp, we need to consider the principles of motion and energy conservation.

Let's assume the height of the launching ramp is h, the angle of the ramp with the horizontal is θ, and the speed of the ball when it leaves the ramp is \(V_ramp.\)

The gravitational potential energy of the ball at the top of the ramp is converted into kinetic energy when it reaches the bottom. We can express this as:

\(m * g * h = (1/2) * m * V_ramp^2\)

Here, m represents the mass of the ball, g is the acceleration due to gravity, and h is the height of the ramp.

We can cancel out the mass (m) from both sides of the equation, which gives us:

\(g * h = (1/2) * V_ramp^2\)

Now, we can solve for  by  \(V_ramp\) rearranging the equation:

\(V_ramp\) =\(\sqrt{(2 * g * h)}\)

In terms of units:

\(V_ramp\) = \(\sqrt{(2 * g * h)}\)meters per second (m/s)

The speed of the ball when it leaves the launching ramp can be expressed using kilometers per hour (km/h), miles per hour (mph), and other units by converting the value of\(V_ramp\) accordingly.

For example:

\(V_ramp\) =\(\sqrt{(2 * g * h)}\) * 3.6 km/h (to convert m/s to km/h)

Let's assume the height of the ramp is 5 meters (h) and the acceleration due to gravity is \(9.8 m/s^2\) (g). We can now calculate the speed of the ball when it leaves the launching ramp (\(V_ramp\)).

\(V_ramp\)= \(\sqrt{(2 * g * h)}\)

=\(\sqrt{ (2 * 9.8 * 5)}\)

= \(\sqrt{(98)}\)

≈ 9.90 m/s

So, in this example, the speed of the ball when it leaves the launching ramp is approximately 9.90 meters per second (m/s).

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