If a vehicle starts to skid on water (hydroplane), the driver should ease off the accelerator, brake gently and gently steer back onto the pavement. (true or false)

The rescuer and victim's accceleration when 1200N of force is applied will be 0.2m/s².

forces in the y direction: upward force + down force

Due to the downward weight, this is bad. The weight of the people

W = mg

W = 120 kg  × (-9.8 )m/s²

W = -1176 Nt

Force up. This is positive because the helicopter is lifting the two people.

F = 1200 Nt

∴ F + W = 24 Nt

The direction is positive, meaning that the people are being moved up.

∵ F = ma

24 Nt = 120 kg × a

acceleration (a) = 24 Nt / 120 kg = 0.2 m/s²

What is force?

A push or pull that an object experiences as a result of interacting with another object is known as a force.

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Answer:

Tin fork and knife.....Copper coin...steel pole

Explanation:

Malleable objects are those which could be shaped with out breaking or could be turned into wires. Tin fork and knife could be bent so it is malleable, copper could be turned into wires so it is also malleable. Most of the metals are malleable. Mild Steel is used in making poles and pipes which is malleable

Answer:

A C F or tin fork and knife from camping set

steel pole fence post

copper coin

Explanation:

I got it right on edg

                                                    hope it helps :)

The complete energy balance equation for transient heat transfer for a long conducting rod can be written as:

∂T/∂t = α (∂²T/∂x²)

∂T/∂t = α (∂²T/∂x²)

Where,

T = Temperature

t = Time

α = Thermal diffusivity

x = Distance along the rod

This equation is also known as the heat equation or the Fourier's law of heat conduction.

It describes the distribution of heat in a given region over time. The left-hand side of the equation represents the rate of change of temperature with respect to time, and the right-hand side represents the rate of heat flow through the rod.

The thermal diffusivity, α, is a measure of how quickly heat can diffuse through the material of the rod. In order to solve this equation for a specific case, you would need to know the initial temperature distribution in the rod, the boundary conditions (such as the temperature at the ends of the rod), and the thermal diffusivity of the material.

With this information, you could use a variety of methods, such as separation of variables or finite difference methods, to find the temperature distribution in the rod at any given time.

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Answer:

Biodiversity is the biological variety and variability of life on Earth. Biodiversity is a measure of variation at the genetic, species, and ecosystem level. Terrestrial biodiversity is usually greater near the equator, which is the result of the warm climate and high primary productivity.

Answer:

Bio means life

Explanation:

Biodiversity means life on earth.

When the fan cart is on a frictionless surface and a wooden surface, the forces acting on it are different. When the fan cart is placed on a frictionless surface, the force acting on it is the thrust force created by the fan, and there is no friction.

On the other hand, when the fan cart is placed on a wooden surface, the force acting on it is the thrust force created by the fan, and there is friction between the cart and the surface. Due to the presence of friction, the fan cart may take longer to come to a stop when placed on a wooden surface. The amount of friction acting on the fan cart on the wooden surface depends on the type of surface and the force of the thrust created by the fan.

When there is no friction on the surface, the cart will move without being interrupted, whereas when the cart is placed on a wooden surface, friction will act against it. The frictional force will vary based on the type of surface and the force exerted by the thrust generated by the fan.

Therefore, the forces acting on the fan cart will be different based on the surface it is placed on. When it is on a frictionless surface, there is no friction acting on it, and when it is on a wooden surface, there is a force of friction acting against it.

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The cosine rule is used to determine the values of unknown aides and angles in a triangle

The measure of θ is approximately 117.2°

Reason:

Given parameters are;

The distance between the two windmills, a = 456 feet

The distance between the cow and one of the windmills, b = 320 feet

Distance between the cow and the other windmills, c = 210 feet

Required, the angle θ between b, and c direction

Solution;

By cosine rule, we have;

a² = b² + c² - 2·b·c·cos(θ)

Which gives;

\(cos (\theta) = \dfrac{320^2 + 210^2 - 456^2}{2 \times 320 \times 210 }\)

The measure of θ ≈ 117.2°

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Wedding ring > giant stone > manhole cover > basketball is how they are arranged in sequence of increasing speed down the ramp. Translational and rotational energy are created from the original potential energy:

The process of transforming findings made in the laboratory, clinic, and community into actions that enhance both the personal and societal health of people, including diagnostic and therapeutic procedures, medical treatments, and behavioral modifications.

: What Is It? the one-way process that occurs on ribosomes and transforms Translation genetic information from an mRNA into a number of major of amino acids in a protein.

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Answer:

Transistor

Explanation:

That is one of the components I got so that is a transistor

Answer:

E=hf

Were, h = Planck constant 6.67*10^11

E=3.8*10^24 * 6.67*10^11= 2.508*q0^36j

B Answer:

Explanation:

bc I just did it and got it wrong

Answer:

Infrared energy

Explanation:

Answer:

A) infrared energy

Explanation:

Think about the end of the world! Venus is circling the sun at a very close distance. And no, having shorter days or a shorter year to orbit the sun does not spell the apocalypse: but the Earth that is burning... literally!

So these would most likely happen to Earth if it were moved to the location of Venus:

Image: Venus, a hot planet rich in carbon dioxide vs. Earth, a planet rich in water and oxygen

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The work done by the tugboat to move the barge from rest to a velocity of 0.550 m/s is 132948.75 J.

To calculate the work done by the tugboat in moving the barge from rest to a velocity of 0.550 m/s, we need to find the change in kinetic energy (∆KE) of the barge.

The formula for kinetic energy is KE = (1/2)mv², where m is the mass of the object and v is its velocity.

Given:

Mass of the barge (m) = 879,000 kg

Initial velocity of the barge (vi) = 0 m/s

Final velocity of the barge (vf) = 0.550 m/s

First, let's calculate the initial kinetic energy (KEi) of the barge:

KEi = (1/2) * 879,000 kg * (0 m/s)² = 0 Joules (since the barge is initially at rest)

Next, let's calculate the final kinetic energy (KEf) of the barge:

KEf = (1/2) * 879,000 kg * (0.550 m/s)²

Now, we can find the change in kinetic energy (∆KE):

∆KE = KEf - KEi

Substituting the values, we get:

∆KE = [(1/2) * 879,000 kg * (0.550 m/s)²] - 0 Joules

∆KE =132948.75 Jule.

By evaluating this expression, we can determine the work done by the tugboat to move the barge from rest to a velocity of 0.550 m/s.

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The question is incomplete. complete question is:

How much work does a tugboat need to do in order to move a barge from rest to a velocity of 0.550 m/s. the mass of the barge is 879,000 kg. the mass of the tugboat is insignificant

For the myopic eye, the power of the corrective contact lenses required is -0.000286 diopters.

To determine the power of corrective contact lenses required for a hyperopic (farsighted) eye, we need to calculate the difference between the far point and the desired reading distance.

For a hyperopic eye, the near point is farther away than the desired reading distance. In this case, the near point is given as 60.0 cm, and the desired reading distance is 25 cm.

The power of the corrective contact lenses is given by the reciprocal of the difference between the near point and the desired reading distance:

Power = 1 / (near point - desired reading distance)

Substituting the values:

Power = 1 / (60.0 cm - 25 cm)

Power = 1 / (35.0 cm)

Power = 0.0286 cm^(-1)

To convert the power to diopters, we can divide by 100:

Power = 0.0286 / 100 diopters

Hence, the power of the corrective contact lenses required for the hyperopic eye is 0.000286 diopters.

For a myopic (nearsighted) eye with a far point of 60.0 cm, the procedure is similar:

Power = 1 / (far point - desired reading distance)

Power = 1 / (60.0 cm - 25 cm)

Power = 1 / (35.0 cm)

Power = 0.0286 cm^(-1)

To convert the power to diopters, we divide by 100:

Power = 0.0286 / 100 diopters

However, since the eye is myopic, the power will be negative:

Power = -0.000286 diopters

Therefore, for the myopic eye, the power of the corrective contact lenses required is -0.000286 diopters.

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A converging lens, also known as a convex lens, is a type of lens that is thicker in the middle and thinner at the edges. It has at least one convex (outwardly curved) surface.

Converging lenses are commonly used in optical devices such as cameras, telescopes, and eyeglasses.  when a converging lens is used to form an image of a distant object, the image formed will typically be smaller, inverted, and real. This is because converging lenses cause parallel rays of light to converge at a focal point, creating a diminished and upside-down representation of the object.

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Answer:

20

Explanation:

force=work done÷distance

Answer:

D I'm pretty sure :)

Explanation:

hope this helps

Answer:

(d) zero

Explanation:

Net acceleration = (a - g)

a is downward so it is positive

F(net) = ma(net)

F = 100 x (9.8 - 9.8)

F = 0

The correct option is (d).

Answer:

Explanation:

The formula for this is

\(n_1sin\theta_1=n_2sin\theta_2\) where the index of refraction of air is 1.00. Filling in and solving for n2:

1.00sin(25) = n₂sin(13) and

1.00(.423) = n₂(.225) and

\(\frac{1.00(.423)}{.225}=n_2\) so

\(n_2=1.88\), choice D.

The required amount of work is done by the applied force when 106N force is applied to move a 15 KG object at a horizontal distance of 4.2 m at a consistent speed is 445.2 J (joules).

Work done is defined as the project being subjected by force to move certain displacement.

The amount of work done by an applied force is equal to the force times the distance moved in the direction of the force. In this case, the force is 106 N and the distance moved is 4.2 m, so the amount of work done by the applied force can be calculated as follows:

work = force x distance = 106 N x 4.2 m = 445.2 J (joules)

It's important to note that the work done is only equal to the energy transferred to the object if the force is the only force acting on the object and the motion is along a straight line path. If there are other forces acting on the object or the motion is not along a straight line, the calculation of the work done can be more complicated.

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Sure! Here are the steps for calculating the velocity and distance traveled by the car after 50 seconds :

Step 1: Calculate the velocity using the equation:

\(v = u + at\)

where:

- \(v\) is the final velocity

- \(u\) is the initial velocity (0 m/s, as the car starts from rest)

- \(a\) is the acceleration (3 m/s²)

- \(t\) is the time (50 seconds)

Substituting the values into the equation:

\(v = 0 + (3 \, \text{m/s²}) \times (50 \, \text{s})\)

Step 2: Calculate the distance traveled using the equation:

\(s = ut + \frac{1}{2}at^2\)

where:

- \(s\) is the distance traveled

- \(u\) is the initial velocity (0 m/s)

- \(a\) is the acceleration (3 m/s²)

- \(t\) is the time (50 seconds)

Substituting the values into the equation:

\(s = 0 \times (50 \, \text{s}) + \frac{1}{2} \times (3 \, \text{m/s²}) \times (50 \, \text{s})^2\)

Now, let's simplify these equations:

\(v = 3 \times 50\)

\(s = \frac{1}{2} \times 3 \times 50^2\)

Calculating the results:

\(v = 150\) m/s

\(s = 3750\) meters

Therefore, after 50 seconds, the car will have a velocity of 150 m/s and would have traveled a distance of 3750 meters.

Answer:

a super massive blackhole

Friction is the force that acts on the opposite side of direction of force, thus it manages to decelerate an object, so it acts upward along the plane

The temperature of force the body after 60 minutes is 71 degrees. Let the temperature of the body after 60 minutes be T.

Since the temperature of the surrounding medium is 25 degrees Celsius and the temperature of the body cools from 95 to 85 in 30 minutes, we can find k using the following formula;dT/dt = k(T - 25)Here, dT/dt is the rate at which the body's temperature changes. It's equal to (85 - 95)/30 = -1/3Since the temperature difference is decreasing with time (body cools down), the negative sign indicates this change.

We have;dT/dt = k(T - 25)-1/3 = k(95 - 25)k = -1/70Substituting the value of k in the differential equation above, we get;dT/dt = (-1/70) (T - 25)Solving the differential equation gives the following equation:T = 25 + 60e^(-t/70)Substituting the value of t = 60 minutes (1 hour) into the equation above gives;T = 25 + 60e^(-1)T = 71 degrees Celsius (rounded to the nearest degree).

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In basin and range topography, the lowest areas are frequently occupied by a(n)  basin.

Basin and range topography is a geological feature characterized by alternating mountain ranges and elongated valleys or basins. The formation of this topography is attributed to the stretching and faulting of the Earth's crust, which leads to the uplift of mountains and the subsidence of adjacent basins.

The lowest areas in this type of topography are often occupied by basins, which are elongated depressions or low-lying regions. These basins typically collect sediment and water, forming flat or gently sloping landscapes. They can range in size from small valleys to extensive lowland areas.

The basins are important features of the basin and range topography and contribute to the unique landscape and hydrological characteristics of the region.

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Answer:

Explanation:

1. DECOY PRICING

This occurs when customers make a purchase they must often choose between products with different prices and attributes.

This method of pricing is meant to influence the consumer's purchasing decision and maximise the sales of one particular product. The seller will offer at least three products; two of the products will have a similar or equal price. The two products with the similar prices should be the most expensive ones, and one of the two should be less attractive than the other.

2. LOSS LEADER

This is when a product is sold at a low price (often without profit) in order to stimulate other profitable sales or to attract new customers.

The main is that it will help the business to expand their market share as a whole. It's common practice when first entering a market as it introduces new customers to a service or product in the hope of building a customer base and securing future

3.ODD PRICING

This is a method of psychological pricing a product. Prices ending in 9, 95, 97, 99 are sometimes called “charm prices” and in this type of pricing, the seller fixes a price where the last digits are odd numbers. This is intended to give the buyer no room for manœuvering or for bargaining as the price appears to be less - a product priced at £9.99 will seems much cheaper than one priced at £10.00

4. PRICE DISCRIMINATION

The purpose of price discrimination is to capture the market's consumer surplus and generate the most revenue possible for a product. Identical goods or services are sold at different prices from the same provider to different segments of the market. Industries that commonly use price discrimination include the travel industry, pharmaceuticals and textbook publishers.

5. PRODUCT BUNDLE PRICING

Using this method, sellers will combine several products in the same package. It also serves to move old stock. Blu-ray and videogames are often sold using the bundle approach once they reach the end of their product life cycle. This technique is used at auctions where one attractive item may be included in a lot with a box of less interesting things. Buyers must bid for the entire lot. It’s a good way of moving slow selling products, and in a way is another form of promotional pricing.

Sedatives, often known as central nervous system depressants, are a class of medications that reduce brain activity. These medications are used to help people relax, settle down, and sleep better.

Sedatives work by increasing the activity of gamma-aminobutyric acid (GABA), a brain neurotransmitter. This can reduce overall brain activity. Brain activity inhibition enables a person to become more relaxed, drowsy, and peaceful.

Sedatives also enhance GABA's inhibitory action on the brain.

Sedation, whether moderate or profound, may cause your breathing to slow, and you may be given oxygen in some circumstances. Drowsiness may also be caused by analgesia.

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(a.i) The value of the acceleration due to gravity on Earth are  9.73 m/s² and 9.8 m/s².

(b.i) The value of average acceleration due to gravity on Earth is 9.77 m/s².

(a.ii) The value of the acceleration due to gravity on Moon are  1.67 m/s² and 1.79 m/s².

(b.ii) The value of average acceleration due to gravity on Moon is 1.73 m/s².

(a.iii) The value of the acceleration due to gravity on Mars are 3.75 m/s² and 3.73 m/s².

(b.iii) The value of average acceleration due to gravity on Mars is 3.74 m/s².

The value of the acceleration due to gravity is calculated as follows;

h = vt + ¹/₂gt²

where;

g = ( 2h ) / t²

The value of acceleration due to gravity for Earth is calculated as;

when; h = 2.25 m, and t = 0.68 s

g = ( 2 x 2.25 ) / ( 0.68² )

g = 9.73 m/s²

when; h = 3.08 m, and t = 0.793s

g = ( 2 x 3.08 ) / ( 0.793² )

g = 9.8 m/s²

Average acceleration due to gravity = ( 9.73 + 9.8 ) / 2 = 9.77 m/s²

The value of acceleration due to gravity for Moon is calculated as;

when; h = 4.04 m, and t = 2.2 s

g = ( 2 x 4.04 ) / ( 2.2² )

g = 1.67 m/s²

when; h = 4.57 m, and t = 2.26 s

g = ( 2 x 4.57 ) / ( 2.26² )

g = 1.79 m/s²

Average acceleration due to gravity = ( 1.67 + 1.79 ) / 2 = 1.73 m/s²

The value of acceleration due to gravity for Mars is calculated as;

when; h = 4.68 m, and t = 1.58 s

g = ( 2 x 4.68 ) / ( 1.58² )

g = 3.75 m/s²

when; h = 3.55 m, and t = 1.38 s

g = ( 2 x 3.55 ) / ( 1.38² )

g = 3.73  m/s²

Average acceleration due to gravity = ( 3.75 + 3.73 ) / 2 = 3.74 m/s²

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