In addition to displacement, which of the following must be used for a more complete description of the average velocity of an object?
acceleration
O change in time
O Distance
O speed

Partial thickness burns are burns that involve the top layer of skin and the layer below it.

Jane lost sensation in the affected area because the nerve endings may be affected in partial-thickness burns.

As per the Rule of Nines, each leg makes up 18% of the body surface, so the anterior region of both legs would account for 18% of 50% (half of the body surface) which equals to 9% of the body surface.

 Using the Rule of Nines, the total body surface area percentage that is burned is calculated. It is a quick and easy way to calculate the area of the burn that is used to determine the degree of burn.

The rule of nines is a medical term used to evaluate the extent of burns on a patient's body. This rule estimates the amount of body surface area (BSA) that has been affected by burns. This technique is often used by healthcare professionals to predict a patient's fluid needs and to help guide treatment decisions. The Rule of Nines divides the body into 11 sections, each accounting for 9% of the body surface. The remaining 1% is accounted for by the perineum. The areas are head and neck, arms, chest, abdomen, upper back, lower back, buttocks, front of legs, and back of legs. In this case, Jane had suffered partial thickness burns to the anterior region of her legs.

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Answer:

The tuba is the biggest, and among the newest, of all the brass instruments. Tuba players create the low-pitched sound by making a kind of "buzz" with their breath against the mouthpiece and pressing the tuba's valves to form notes.

Explanation:

in other words it because less air molecules are abloe to go through the mouth peiece of the tuba

Answer:

Velocity

Explanation:

I took the test.

The convex lens will produce a magnification of approximately 0.604.

The magnification produced by a convex lens can be calculated using the formula M = -d/f, where M is the magnification, d is the object distance, and f is the focal length of the lens. In this case, the object distance is 6.3 cm and the focal length is 10.9 cm. Substituting these values into the formula, we have M = -6.3 cm / 10.9 cm ≈ -0.577. However, since the lens is being used as a magnifying glass, the magnification is positive, so we take the absolute value of the result. Therefore, the magnification produced by the convex lens is approximately 0.604. This means that the image formed by the lens will appear 0.604 times the size of the object.

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Answer:c

Explanation:

The minimum and maximum braking distances needed to ensure that all vehicles traveling at the posted speed limit can stop before reaching the intersection are as follows:

- For small cars: Minimum ≈ 1773.028 m, Maximum ≈ 1568.850 m

- For large trucks: Minimum ≈ 3285.760 m, Maximum ≈ 2409.595 m

To calculate the minimum and maximum braking distances, we can use the equations of motion for a decelerating vehicle.

The equation for the braking distance of a vehicle is given by:

d = (v^2) / (2 * μ * g)

where d is the braking distance, v is the initial velocity of the vehicle, μ is the coefficient of friction between the tires and the road, and g is the acceleration due to gravity.

Let's calculate the minimum and maximum braking distances separately for small cars and large trucks.

For small cars with a mass of 563 kg:

- Minimum braking distance:

  v = 8989 km/h = (8989 * 1000) / 3600 m/s = 2496.944 m/s

  μ_min = 0.536

  d_min = (v^2) / (2 * μ_min * g) = (2496.944^2) / (2 * 0.536 * 9.8) ≈ 1773.028 m

  Maximum braking distance:

  μ_max = 0.599

  \(d_max = (v^2) / (2 * μ_max * g) = (2496.944^2) / (2 * 0.599 * 9.8) ≈ 1568.850 m\)

For large trucks with a mass of 3951395 kg:

- Minimum braking distance:

  v = 8989 km/h = 2496.944 m/s (same as for small cars)

  μ_min = 0.350

 \(d_min = (v^2) / (2 * μ_min * g) = (2496.944^2) / (2 * 0.350 * 9.8) ≈ 3285.760 m\)

  Maximum braking distance:

  μ_max = 0.480

 \(d_max = (v^2) / (2 * μ_max * g) = (2496.944^2) / (2 * 0.480 * 9.8) ≈ 2409.595 m\)

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Answer:

1:a

2:c

3:f

4:d

5:f or e

6:d

Explanation:

Hope it helps! also if im wrong sorry. but i already learned this so yeah have a nice day!

In a circuit with two identical components connected in parallel, the current which flows through its different branches will be different.

A parallel circuit can be defined as a type of circuit that comprises branches so that the current divides and only part of it flows through any branch.

In this type of circuit (parallel circuit) the voltage, or potential difference, across each branch of a parallel circuit is the same, but the currents may vary.

The main characteristics of parallel circuits include the follow;

Thus, a parallel circuit will have same voltage across the circuit components and different current flowing in each components.

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Answer:

D.

Explanation:

Weight is determined using the formula \(w=mg\) (m=mass, w-weight, g=gravity​). In physics, weight is the force that gravitation exerts upon a body, equal to the mass of the body times the local acceleration of gravity.

Answer:

I think no because the critical properties distinguishing life is adaptation to changing environment and self replication of the information encoding the life process. Fire does not change its process to adapt to its environment, e.g. moving toward more fuel or storing and conserving fuel when it is in short supply.

Hope this help you!:)

Answer:

I = 1.4 [amp]

Explanation:

To solve this problem we must use ohm's law, which tells us that the voltage is equal to the product of the current by the resistance.

Therefore:

V = I*R

where:

V = voltage = 14[V]

I = current [amp]

R = resistance = 10 [ohm]

I = 14/10

I = 1.4 [amp]

Answer:true

Explanation:\(U\)

Answer:

Carbon-14 decays relatively quickly

Explanation:

i took the test

Answer:

c,e,f,d

Explanation:

Answer:

F

=

m

Δ

v

t

force = mass * change in velocity / time

at

1

s:

mass:

40

kg

change in velocity (taking downwards as a positive direction):

4

m/s to rest

=

4

−

0

=

4

m/s

time:

1

s

m

Δ

v

t

=

160

1

=

160

force applied

=

160

N

at

0.1

s:

m

Δ

v

t

=

160

0.1

=

1600

force applied =

1600

N

Answer:

The acceleration 2.4 m/s²

Explanation:

Given:

V₀ = 0 m/s  - Initial vehicle speed

t = 14.9 s   - Time

D = 266 m - Distance traveled by car

__________

a - ?  - the acceleration

D = V₀·t + a·t² / 2;

V₀ = 0

D = a·t² / 2;

a = 2·D / t² = 2·266 / 14.9² ≈ 2.4 m/s²

Answer:

it take 15 seconds

Explanation:

it take 15 seconds to increase it time

Answer:

HOPEFULLY i am correct but i say its D. Hopefully I helped!✨

Answer: It can be A or B

Explanation: In physics, motion is the phenomenon in which an object changes its position over time. Motion is mathematically described in terms of displacement, distance, velocity, acceleration, speed, and time.

A chorus of 16 singers would make about 95.74 dB of sound if they sang with the same intensity as one vocalist.

This ratio is multiplied by 10 using the decibel (dB) measurement unit. The sound intensity level, as opposed to the actual intensity, shows you the level of the sound in relation to a reference intensity.

To get the overall sound level, we can apply the formula shown below:

Lp1 = 83.7 dB (sound level produced by one singer)

Lp2 = 10 log (N) + Lp1

N is the quantity of sources (in this case, 16 singers).

Lp2 = 10 log (16) + 83.7 dB

Lp2 = 10 (1.204) + 83.7 dB

Lp2 = 12.04 + 83.7 dB

Lp2 = 95.74 dB

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Answer:

Internal energy is the microscopic energy contained in a substance, given by the random, disordered kinetic energy of the molecules. In addition it includes the potential energy between these molecules, and the nuclear energy contained in the atoms of these molecules

Answer:

Internal energy, in thermodynamics, the property or state function that defines the energy of a substance in the absence of effects due to capillarity and external electric, magnetic, and other fields.

Explanation:

The type of single-case design that involves a withdrawal of treatment and reversal of procedures is called a Reversal Design, also known as an ABAB design.

This design consists of alternating between baseline (A) and intervention (B) phases.

During the baseline phase (A), the participant's behavior is observed without any intervention.

In the intervention phase (B), a specific treatment is introduced, and the participant's behavior is monitored for any changes.

The treatment is then withdrawn (returning to A), and finally, the intervention is reintroduced (B) to observe its effects again. The Reversal Design allows researchers to establish a cause-effect relationship between the intervention and the observed changes in behavior.

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Hi there!

When finding work (J) given force (N), we use the equation:

W = FdcosФ <-- Only take into account the force in the direction of motion

Plug in the given values:

W = 27(32)cos(20) = 811.89 J

Explanation:

Here,

Given that,

pulls a wagon a distance of 32 meters the handle is above an angle of 20 degrees above horizontal if you pull on it with a force of 27 N

To find,

As we know that,

\({\boxed{\sf{W=f.d.cos\theta }}}\)

According to the question,

\(W=27(32)cos{20}\\\\w=811.89J\)

Answer:

As the temperature is increased the more the energy store

Answer:

Heat stroke

Explanation:

After watching the Ted Talk, there were still a few questions that I had about supermassive black holes. Firstly, I wanted to know more about the event horizon and what it exactly entails. Although the speaker briefly touched upon this subject, I would have appreciated a more in-depth explanation. Additionally, I would have liked to know more about the role of supermassive black holes in the universe.

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Answer:

The answers to your questions are given below

Explanation:

A. Definition of momentum.

Momentum of an object can be defined as the product of the mass of the object and its velocity. Mathematically, it expreessed as:

Momentum = mass x Velocity

From the above equation, we can derive the SI unit of momentum as follow:

Mass is measured in Kilogram (Kg)

Velocity is measured in meter per second (ms¯¹).

Momentum = mass x Velocity

Momentum = Kg x ms¯¹

Momentum = Kg•ms¯¹

Therefore, the SI unit of momentum is Kg•ms¯¹.

Bi. Determination of the force of the body from O to A.

Mass (m) = 5 kg

Velocity (v) = 40 ms¯¹

Time (t) = 2 secs.

Force (F) =?

Next, we shall determine the acceleration of the body.

Acceleration (a) = Velocity (v) /Time (t)

a = v /t

Velocity (v) = 40 ms¯¹

Time (t) = 2 secs.

Acceleration (a) =.?

a = v/t

a = 40/2

a = 20 ms¯²

Now, we can obtain the force as follow:

Mass (m) = 5 kg

Acceleration (a) = 20 ms¯²

Force (F) =?

Force (F) = mass (m) x Acceleration (a)

F = ma

F = 5 x 20

F = 100 N

Therefore, the force of the body from O to A is 100 N.

Bii. Determination of the force of the body from B to C.

Mass (m) = 5 kg

Velocity (v) = 40 ms¯¹

Time (t) = 10 – 6 = 4 secs.

Force (F) =?

Next, we shall determine the acceleration of the body.

Acceleration (a) = Velocity (v) /Time (t)

a = v /t

Velocity (v) = 40 ms¯¹

Time (t) = 4 secs.

Acceleration (a) =.?

a = v/t

a = 40/4

a = 10 ms¯²

Now, we can obtain the force as follow:

Mass (m) = 5 kg

Acceleration (a) = 10 ms¯²

Force (F) =?

Force (F) = mass (m) x Acceleration (a)

F = ma

F = 5 x 10

F = 50 N

Therefore, the force of the body from B to C is 50 N.

Answer:

The chemical processes maintaining balance within the living organism

Explanation:

The cost to watch an entire World Series on a 90.0 W black-and-white television set is $0.26.

To calculate the cost, first we need to determine the total energy consumed by the television set over 21 hours. We can use the formula E = Pt, where E is the energy consumed in kilowatt-hours (kWh), P is the power in kilowatts (kW), and t is the time in hours. Converting the power of the television set from watts to kilowatts gives us:
P = 90.0 W ÷ 1000 = 0.0900 kW
Plugging in the values, we get:
E = 0.0900 kW x 21 h = 1.89 kWh
Next, we can calculate the cost using the given rate of $0.070 per kWh:
Cost = 1.89 kWh x $0.070/kWh = $0.13
Therefore, it would cost $0.26 to watch an entire World Series on a 90.0 W black-and-white television set.

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Answer:

a) -1.25 m/s²

b) 62.5 m

Explanation:

Convert km/h to m/s:

45 km/h × (1000 m/km) × (1 h / 3600 s) = 12.5 m/s

a = Δv / Δt

a = (0 m/s − 12.5 m/s) / 10 s

a = -1.25 m/s²

Δx = ½ (v + v₀) t

Δx = ½ (0 m/s + 12.5 m/s) (10 s)

Δx = 62.5 m