The wavelength of a transverse wave can be measured as the distance between two adjacent.

Answer:

Explanation:

A wind is the horizontal movement of air from an area of high pressure to an area of lower pressure. Winds are caused by differences in air pressure. Most differences in air pressure are caused by unequal heating of the atmosphere

Answer:

1) 4 x 25m = 100m

2) 0 because after 4 lengths, he's back at the starting block.

3) speed is distance over time so speed here is 100m/125s = 0.8m/s

4) ...

5) 100m / 1.25m/s = 80s

6.a) 100m / 0.5m/s = 200s

7.b) ... can't draw this now..

The time taken for the coffee to cool from 93°C to 73°C is approximately 36.1 minutes.

The cooling law is given by:

$$\frac{dQ}{dt}=-k(T-T_0)$$

where Q is the heat in the object, t is the time taken, T is the temperature of the object at time t, T0 is the temperature of the environment and k is a constant known as the cooling constant.

We need to find the time it takes for the coffee to reach a drinking temperature of 73°C given that its initial temperature is 93°C.

Therefore, we need to find the time it takes for the coffee to cool down from 93°C to 73°C when placed in a room temperature of 18°C.

Let’s assume that the heat energy that is lost by the coffee is equal to the heat energy gained by the environment. We can express this as:

dQ = - dQ where dQ is the heat energy gained by the environment.

We can substitute dQ with C(T-T0) where C is the specific heat capacity of the object.

We can rearrange the equation as follows:

$$-\frac{dQ}{dt}=k(T-T_0)$$

$$-\frac{d}{dt}C(T-T_0)=k(T-T_0)$$

$$\frac{d}{dt}T=-k(T-T_0)$$

The differential equation above can be solved using separation of variables as follows:

$$\frac{d}{dt}\ln(T-T_0)=-k$$

$$\ln(T-T_0)=-kt+c_1$$

$$T-T_0=e^{-kt+c_1}$$

$$T=T_0+Ce^{-kt}$$

where C = e^(c1).

We can now use the values given to find the specific value of C which is the temperature difference when t=0, that is, the temperature difference between the initial temperature of the coffee and the room temperature.

$$T=T_0+Ce^{-kt}$$

$$73=18+C\cdot e^{-0.09t}$$

$$55=C\cdot e^{-0.09t}$$

$$C=55e^{0.09t}$$

$$T=18+55e^{0.09t}$$

We can now solve for the value of t when T=93 as follows:

$$93=18+55e^{0.09t}$$

$$e^{0.09t}=\frac{93-18}{55}$$

$$e^{0.09t}=1.3636$$

$$t=\frac{\ln(1.3636)}{0.09}$$

Using a calculator, we can find that the time taken for the coffee to cool from 93°C to 73°C is approximately 36.1 minutes.

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The amount of charge that passes through a 3.0 amp television in 1.3 hours would be 14040 Coulombs.

I = Q / T

Let us first convert the time period of hours into seconds

1 hour = 3600 seconds

1.3 hours = 1.3 × 3600 seconds

              =  4680 seconds

By using the above relation between electric current and electric charge

and by substituting the respective values of the charge and the time period

I = Q / T

3 = Q / 4680

Q = 3 × 4680

  = 14040 Coulombs

A charge is a fundamental property of matter that describes the amount of electric charge a particle possesses. Charged particles, such as electrons and protons, interact with each other through electromagnetic force, which is one of the four fundamental forces of nature. The charge can be either positive or negative, and opposite charges attract while like charges repel.

A charge is conserved, which means that the total amount of charge in a closed system remains constant. This conservation law is an essential principle in many areas of physics, including electromagnetism, quantum mechanics, and particle physics. The charge also plays a significant role in electrical phenomena, including circuits, electric fields, and electromagnetic radiation. It is essential to understand the charge and its properties to comprehend many aspects of the physical world around us.

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The correct answer to the given question is option b) coolant temperature. Input data that directly affects glow plug operation is coolant temperature.

A glow plug is a heating gadget that is intended to support the combustion process by heating the engine. It helps in starting the engine by providing heat that is required for combustion. Glow plugs are a crucial component of the diesel engine system. They help to begin the engine when it is cold by heating the air inside the cylinder. The glow plug comprises a heating element, generally a wire coil, that heats up when electricity is passed through it. It is a common sight in cold areas to see cars with thick smoke arising from the exhaust, and this happens because of the inability of the engine to warm up.In conclusion, we can say that coolant temperature is an input data that directly affects glow plug operation.

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H=132.3m and U=29.4ms−1 are height and velocity respectively.

What is motion?

Motion is a change in position of an object over time. It occurs when an object moves from one point to another. Motion can be described in terms of displacement, distance, speed, velocity, and acceleration. Motion can also be described using Newton's laws of motion which state that an object in motion will remain in motion unless acted upon by an external force. Motion also describes the motion of particles in a fluid or gas, as well as the motion of waves in a medium. Motion is an essential part of the physical world and is essential for understanding the fundamental laws of nature.

Motion in a straight line

Let,

u = Initial velocity of stone

H = Maximum height attained by the stone

v = final velocity at maximum height = 0

t = time taken to attain maximum height = 3s

a=−g= acceleration due to gravity

a. We know that,

V=u+at

0=u−g×3

U=3g=3×9.8ms−2

U=29.4ms−1

b. From the equations of motion, we know that,

S=ut+ ½ a t2

H=29.4×3+½ * 9.8 *32

H=88.2+44.1

H=132.3m

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Answer:

please provide more information about the question so that I can help you

If the net force on an object is zero, it will slide down an inclined plane at a constant velocity. This knowledge can be used to calculate the coefficient of kinetic friction between two objects.

The kinetic friction on a slope is denoted as f k = k m g cos. The change in velocity (v) over the change in time (t) is expressed by the equation a = v/t. This enables you to calculate how quickly velocity varies in meters per second squared (m/s2). The coefficient of friction (fr) is a quantity that represents the ratio of the frictional resistive force (Fr) divided by the normal or perpendicular force (N) pushing the objects together.

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Answer:

You need to provide the question and (if it has them) answer options for the question. Once you have done that, delete my response so I may be able to answer your question faster than normal.

Explanation:

The given equation, f(x) = -0.1x^2 + 1.4x + e, models the height of a ball thrown upward and outward from a height of 6 feet, where x represents the horizontal distance in feet from where the ball was thrown. Let's solve parts (a) through (c) using this model.

To find the maximum height of the ball and the distance from where it was thrown, we need to determine the vertex of the quadratic equation. The vertex can be found using the formula x = -b / 2a. In this case, a = -0.1 and b = 1.4.
\(x = -1.4 / (2 * -0.1) = 7\)

The maximum height occurs at x = 7. Substituting this value into the equation gives us:
\(f(7) = -0.1(7)^2 + 1.4(7) + e\)

=\(-0.1(49) + 9.8 + e\)    

=\(-4.9 + 9.8 + e\)

= \(4.9 + e\)
So, the maximum height of the ball is 4.9 feet + 6 feet (initial height) = 10.9 feet. It occurs 7 feet from where the ball was thrown.
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Answer:

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question is we have

force = 75 × 12

We have the final answer as

Hope this helps you

Answer:

\(ke = \frac{1}{2} mv {}^{2} \)

Answer:

Explanation:

Average speed is always: ( total distance traveled ) / ( time elapsed )

The time for the walk is +150+%2B+30+%2B+140+=+320+ s

The distance traveled is +160+%2B+210+=+370+ m

( total distance traveled ) / ( time elapsed ) = +370+%2F+320+=+1.156+ m/s

Autotransformers are especially practical if the difference between the primary and secondary voltages is realtively small.

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The backward finite difference method for estimating the derivative at x=0.5 is:

(f(0.5) - f(0.25)) / (0.5 - 0.25) = (-0.14 - (-0.4025)) / (0.5 - 0.25) = 0.2625 / 0.25 = 10.5

The percent error between this estimate and the true value is:

|(10.5 - (-0.9125)) / (-0.9125)| * 100% = |11.4125 / (-0.9125)| * 100% = 12.48%

The forward finite difference method for estimating the derivative at x=0.5 is:

(f(0.75) - f(0.5)) / (0.75 - 0.5) = (-0.6275 - (-0.14)) / (0.75 - 0.5) = -0.4875 / 0.25 = -1.95

The percent error between this estimate and the true value is:

|(-1.95 - (-0.9125)) / (-0.9125)| * 100% = |-1.0375 / (-0.9125)| * 100% = 1.14%

The centred finite difference method for estimating the derivative at x=0.5 is:

(f(0.75) - f(0.25)) / (0.75 - 0.25) = (-0.6275 - (-0.4025)) / (0.75 - 0.25) = -0.225 / 0.5 = -0.45

The percent error between this estimate and the true value is:

|(-0.45 - (-0.9125)) / (-0.9125)| * 100% = |0.4625 / (-0.9125)| * 100% = 0.51%

To get the same percent error as the centred finite difference, we would have to use a step size of ∆ = 0.125.

This is because a smaller step size means a smaller difference between the estimates and the true value, and therefore a smaller percent error.

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Answer: \(12.82\ m/s\)

Explanation:

Given

Mass of car \(m=991\ kg\)

Force applied \(F=31,770\ N\)

time period \(t=0.4\ s\)

Acceleration associated with car

\(\Rightarrow a=\dfrac{F}{m}\\\\\Rightarrow a=\dfrac{31770}{991}\\\\\Rightarrow a=32.05\ m/s^2\)

Acceleration is the change in velocity w.r.t time

\(\Rightarrow a=\dfrac{\Delta v}{\Delta t}\\\\\Rightarrow 32.05=\dfrac{\Delta v}{0.4}\\\\\Rightarrow \Delta v=12.82\ m/s\)

thus, the change in velocity is \(12.82\ m/s\)

Explanation:

Hope this helps,

Juno entered a polar orbit of Jupiter on July 5th 2016 UTC, to begin a scientific investigation of the planet. After completing its mission, Juno will be intentionally deorbited into Jupiters atmosphere. Junos mission is to measure Jupiters composition, gravitational field, magnetic field, and polar magnetosphere.

Answer:

1

3

4

5

or

a

c

d

e

Explanation:

Answer:

Below

Explanation:

1. Everest

2. Godwin Austen

3. Kangchenjunga

4. Lhotse

5. Makalu

6. Cho Oyu

7. Dhaulagiri

8. Manaslu

9. Nanga Parbat

10. Annapurna

Sorry I don't know anything about their types :(

I hope this helps you :)

Answer:

the 10 tallest mountains are Mount Everest, K2, Kangchenjunga, Lhotse, Makalu, Cho Oyu, Dhaulagiri, Manaslu, Nanga Parbat, and finally annapurna 1 and they are all fold

Explanation:

they are all in the himalayas And the Himalayan mountains are all folded mountains I think

Answer:

45 degrees

Explanation:

Given that the coefficient of friction, \(\mu=1.0\)

Let the angle of the ramp be \(\theta\).

The gravitational force acting downward \(=mg\)

The normal reaction by the ramp on the box, \(N=mg\cos\theta\)

So, the maximum frictional force that can act on the box, \(f= \mu N\)

The force along with the plane in the direction of sliding, \(F = mg\sin\theta\)

When the box begins sliding, the F must have to overcome the frictional force,f.

So, F=f

\(mg\sin\theta=\mu N \\\\mg\sin\theta=\mu mg\cos\theta \\\\\frac {\sin\theta}{\cos\theta}=\mu \\\\\tan\theta=\mu \\\\\theta=\tan^{-1}\mu \\\\\)

Putting the value of \mu, we have

\(\theta=\tan^{-1}1\)

\(\theta=45\) degrees.

Hence, the angle of the ramp with respect to the ground when the box begins sliding is 45 degrees.

Answer:

B

Explanation:

did this yesterday with my friend

Answer: Tagged players perform a fitness activity

Explanation: Proof of validity is shown below.

If the fringe spacing is 80 cm, the distance between the aerials  is 6.25 meter.

In physics, interference refers to the combined result of two or more wave trains travelling along intersecting or converging trajectories. The result is the result of adding the individual wave amplitudes at each place that is influenced by multiple waves.

Given: wavelength  = 50 mm = 50 × 10⁻⁴  m

the fringe spacing is = 80 cm = 0.80 m.

x = λD/d

d =  λD/x

= 50 × 10⁻⁴ × 1000/0.80 m

= 6.25 meter.

Hence,  the distance between the aerials  is 6.25 meter.

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Answer:

Kinetic energy does not stay the same at all heights

Explanation:

Well as the height and wind increase so does the kinetic energy it's like when you fall as you are about to hit the floor you speed increases

HOPE THIS HELPS YA :)

The two experiments that Coulomb's to show the relationship between electrostatic force and that law carries Coulomb's name today to include this relationship as a fundamental component.

Torsion balance is used to study the repulsion and attraction forces of charged particles and found that the strength of the electric force between two point charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them.

A bar is suspended from the centre of the torsion balance by a thin fibre. The fibre functions as a flimsy torsion spring.

The torsion balance in Coulomb's experiment was a suspended metal-coated ball attached to one end of an insulating rod.

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Answer:

1.52 kJ

Explanation:

Total kinetic energy in gas K = 3NkT/2 where N = number of molecules, K = Boltzmann constant and T = temperature.

Also from the ideal gas law, PV = NkT

substituting PV into K above

K = 3PV/2 where P = pressure = 1.013 × 10⁵ N/m² and V = volume of gas = 5 litres = 5 dm³ = 5 × 10⁻³ m³

K = 3 × 1.013 × 10⁵ N/m² × 5 × 10⁻³ m³/2

= 1519.5 J

= 1.5195 kJ

≅ 1.52 kJ

Answer:

B thickness

Explanation:

thickness

Answer:

An unbalanced force can change an object's motion. An unbalanced force acting on a still object could make the object start moving. An unbalanced force acting on a moving object could make the object change direction, change speed, or stop moving.