Practicing good human relations skills and having a positive attitude will

The acceleration of a cheetah that can increase its speed from 0 to 70 mph in 2.2 seconds is 14.224 m/s² after converting the velocity into meters per second.

To calculate the acceleration of a cheetah that can go from 0 to 70 mph in 2.2 seconds, we first need to convert the speed from miles per hour (mph) to meters per second (m/s). The conversion factor is 1 mph = 0.44704 m/s. So, 70 mph is equivalent to 70 × 0.44704 m/s, which equals 31.2928 m/s. According to the formula for acceleration (a), which is the change in velocity (Δv) divided by the time (Δt), the cheetah's acceleration would be:

a = Δv / Δt = (31.2928 m/s - 0 m/s) / 2.2 s = 14.224 m/s²

Therefore, the cheetah's acceleration is 14.224 m/s².

Answer:

Z: Gamma rays

X: Visible light

Explanation:

A close look at the diagram attach shows the core of the sun and then the external surface.

Gamma rays are intricately associated with the nuclear reactions that go on in the core of the sun that makes it to produce light. Hence Z must refer to gamma rays emitted in these nuclear processes at the core of the sun.

Visible light is given out by the sun and seen externally. Hence X is visible light.

Answer:

This would increase the formation of the NH3 buffer.

Explanation:

This would increase the formation of the NH3 buffer. Since Pepsi has acid in it, it would cause the kidneys to reabsorb bicarbonate from the urine leading to an increase in the formation of the NH3 buffer.

Answer:

4.8*10^-8M

Explanation:

To determine the concentration of Pb2+ in the anode compartment, we can use the Nernst equation. By rearranging the Nernst equation and plugging in the given values, we can calculate the concentration of Pb2+ in the anode compartment.

To determine the concentration of Pb2+ in the anode compartment, we need to use the Nernst equation. The Nernst equation relates the cell potential to the concentration of ions in each compartment of the cell. It is given by: Ecell = E°cell - (0.0592/n) × log([Pb2+]/[Sn2+]), where Ecell is the cell potential, E°cell is the standard cell potential, [Pb2+] is the concentration of Pb2+ in the anode compartment, [Sn2+] is the concentration of Sn2+ in the cathode compartment, and n is the number of electrons transferred in the balanced redox reaction.

In this case, the cell potential is 0.24 V, [Sn2+] is 1.50 M, and n is 2 (since it is a Sn2+/Pb2+ redox reaction). Therefore, the equation becomes: 0.24 = E°cell - (0.0592/2) × log([Pb2+]/1.50). We can rearrange this equation to solve for [Pb2+]: [Pb2+] = (10^((E°cell - 0.24) × 2 / 0.0592)) × 1.50.

When you drive along the right-rear side of another vehicle, you are in one of the driver's blind spots and in danger of a collision.

Driving is the controlled operation and movement of a vehicle, including cars, motorcycles, trucks, buses, and bicycles.

The most critical thing to do before you pass another vehicle is check to the right side.  It is also very important never to drive faster than the the speed limit, or at a speed that is unsafe for the current traffic,

weather or road condition in order to pass other vehicles. The law requires you to only pass other vehicles on the left (using the left lane). This is why you should check the right side.

Hence when you drive along the right-rear side of another vehicle, you are in one of the driver's blind spots and in danger of a collision.

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Final answer:

The Duracell and Interstate brands offer golf cart batteries with differences in performance, battery life, and maintenance needs. While Duracell is known for reliable and long-lasting power, Interstate emphasizes build quality and has a strong support network. The choice depends on user preferences and cart compatibility.

Explanation:

The Duracell and Interstate brands offer golf cart batteries, with distinctions that can influence a consumer's choice. Duracell batteries are known for their long-standing reputation in battery reliability and performance. They typically provide a range of batteries for various applications, including golf carts, with attention to long-lasting power and durability. On the other hand, Interstate batteries boast top-quality construction and are also very reliable, with a strong presence in the automotive battery market. Consumers may find differences in the specifications such as battery life, maintenance requirements, performance under varying conditions, and price between the two brands.

When choosing between Duracell and Interstate golf cart batteries, one should consider factors such as the type of battery (flooded lead-acid vs. AGM), capacity, cycle life, maintenance needs, and warranty offered by the manufacturer. Duracell generally offers a reliable and consistent performance, while Interstate emphasizes build quality and has a strong distribution network for customer support. Ultimately, the decision should be based on the specific needs and preferences of the user, as well as the compatibility with their golf cart model.

Answer:

They transmit directly between the brain and the sense organs.

Explanation:

Cranial nerves – Nerves that emerge directly from the brain and transmit information directly between the brain and various organs and muscles

Answer:

(1) Physical characteristics different.

(2) Difference in direct relation of mental picture with the real object.

Explanation:

There are the points which describe the non similarities between symbolic and analogical representation:

Final answer:

Q represents the amount of heat energy required for phase change in the context of latent heat equations. It is calculated using mass and the substance-specific latent heat constants for fusion and vaporization.

Explanation:

In the context of the latent heat formulas, Q represents the heat required to change the phase of a substance. Specifically, for the latent heat of fusion, Q = mLf where Lf is the latent heat of fusion, the constant that denotes the amount of heat energy required to change 1 kilogram of the substance from a solid to a liquid without changing its temperature. For the latent heat of vaporization, Q = mLv where Lv is the latent heat of vaporization, indicating the amount of heat energy needed to change 1 kilogram of the substance from a liquid to a gas. The values of Lf and Lv are determined experimentally for different materials. For instance, for water, Lf is 334 kJ/kg, thus Q for turning 1 kilogram of ice at 0°C into water is Q = 3.34 × 105 J. The latent heat of vaporization for water is Lv = 2256 kJ/kg, meaning the energy required to vaporize mass m of water is Qv = mLv.

The phone has fallen approximately 36.621 meters after 2.7 seconds.

In order to determine how far the phone has fallen after 2.7 seconds, we can use the equation of motion: s = ut + (1/2)at², where s is the distance, u is the initial velocity, t is the time, and a is the acceleration. Since the phone is dropped from rest, its initial velocity is 0 m/s. Neglecting air resistance, the only force acting on the phone is gravity, which accelerates it at a rate of 9.8 m/s². Plugging in the values, we get:

s = (0)(2.7) + (1/2)(9.8)(2.7)²

s = 36.621 m

Therefore, the phone has fallen approximately 36.621 meters after 2.7 seconds.

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To calculate the average speed of the person's entire trip, you would use the formula of total distance divided by total time. In this scenario, the total distance is twice the distance from point A and B, and the total time is the sum of the times taken to walk from A to B and back.

The question is asking about the concept of average speed, which in physics is defined as the total distance travelled divided by the total time taken. In this case, the subject walks from point A to B and then retraces her steps back to A.

Since she's retracing her exact path, the total distance travelled is essentially twice the distance from A to B. The total time taken is the time taken to walk from A to B plus the time taken to walk back.

Firstly, we would determine the time taken for each leg of the journey by dividing the distance, say 'd', by her speed. However, since we don't have a specific distance given, we can use variables.

Let's say the time taken to travel from A to B is 't1' (d/2.3) and from B to A is 't2' (d/1.1).

Her total journey time 'T' is the sum of 't1' and 't2'. To get the average speed, we divide the total distance travelled (which is '2d') by 'T'. This would give us an equation that represents her average speed for the entire trip.

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A person starts walking at a constant speed of 2.3 m/s in a straight line from point A to point B. At point B she turns around and walks back to point A at a speed of 1.1 m/s

Let distance between A and B be s.

When she goes from A to B,

Time taken = Distance travelled/ Speed

= s/ 2.3

When she goes from B to A,

Time taken= Distance travelled/ Speed

= s/1.1

Total distance travelled= s+s= 2s

Total time taken:

= s/2.3+s/1.1

=1.1s+2.3s/1.1*2.3

=3.4s/2.53

Average speed= Total distance/ Total time

= 2s / (3.4s/2.53)

= 1.48 m/s

Therefore, the average speed of the whole journey is 1.48 m/s.

Hello!

I believe the answer is C) The Moon and Earth rotate at the same rate. The moon and the earth rotate at the same rate. Meaning that the moon orbits the earth in 27.322 days. It also takes approximately 27 days for the moon to rotate once on its axis. So as a result, the moon does not seem to be spinning, but appears to observers from Earth to be keeping almost perfectly still.

I hope it helps!

Static electricity is shown by building up electric charges on a Van de Graaff generator. Given statement is correct.

The imbalance of electric charges within or on the surface of a substance, or between materials, is known as static electricity.

Static electricity is generated by Van de Graaff generators. Static does not include acceleration, implying that it is stationary, which pertains to the formation of electric charges.

Static electricity is shown by building up electric charges on a Van de Graaff generator.

Hence,given statement is correct.

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The efficiency of the light bulb is 75%.

Calculating The Efficiency Of A Light Bulb.

To calculate the efficiency of the light bulb, you can use the following formula:

Efficiency (%) = (Useful Energy Output / Total Energy Input) * 100

In this case:

- Useful Energy Output is the light energy produced, which is 450 J.

- Total Energy Input is the electrical energy used, which is 600 J.

Efficiency (%) = (450 J / 600 J) * 100 = (3/4) * 100 = 75%

So the efficiency of the light bulb is 75%. This means that 75% of the electrical energy input is converted into useful light energy, while 25% is wasted as other forms of energy, such as heat.

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In conduction mode of heat transfer energy is transferred through medium molecules by their vibration about their own position. SO here medium particles remain at their own position while energy is transferred from one point to other

In convection mode of heat transfer the heat is carried by the medium molecules from one place to other. So here medium moles itself transfer with the energy.

In radiation mode heat energy is transferred through electromagnetic waves so there is no medium required for this.

So correct answer is

Convection and conduction transfer thermal energy through matter only, and radiation transfers thermal energy through both matter and empty space.

Convection and conduction transfer thermal energy through matter only, and radiation transfers thermal energy through both matter and empty space.