After completing a trip on a roller coaster, the roller coaster's --------- is zero

The fastest rollercoaster in the world is the formula rossa in abu dhabi, united arab emirates, speed of this is 240 km/h (149.1 mph)

The rate at which an object's distance traveled changes is measured by its speed. In terms of measurement, speed is a scalar, meaning it has magnitude but no direction. Speed is the rate at which an object moves over a given distance. a thing that travels at a high rate of speed and covers a lot of distance quickly. A slow-moving object, on the other hand, travels a comparatively short distance in the same amount of time when moving at a low speed. An object with zero speed is completely immobile.

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(A) The initial velocity of the object is 11.76 m/s (b) The total distance traveled by the object is 7.056 m

Initial Velocity is the velocity at time interval t = 0.

To calculate the initial velocity of the object, we use the formula below

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Also,

(b) To calculate the distance traveled by the object, we use the formula

Formula:

Where:

Substitute into equation 2

Hence, (A) The initial velocity of the object is 11.76 m/s (b) The total distance traveled by the object is 7.056 m.

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Answer:

f=ma

therefore we have f=36N

                               m=9kg

a=f/m

36/9

=4m/s^2

Explanation:

The acceleration of 9 kg rock and being acted upon by a 36 N force would be 4 m/s2

Recall Newton's law of motion which says that the magnitude of a force (F) needed to accelerate (a) a body with mass (m) is the product of the acceleration and the mass of the body.

In other words; F = ma

Thus, a = F/m

In this case, F = 36 N and m = 9 kg

acceleration (a) = 36/9

                            = 4 m/s2

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It swings back and forth. The given information includes the mass of the sphere \((1.5×10^−2 kg)\) and its radius \((4.5×10^−2 m).\)

When the holiday ornament is displaced from its equilibrium position and released, it behaves as a physical pendulum. The motion of a physical pendulum depends on its mass distribution and moment of inertia. In this case, the mass is concentrated on the surface of the hollow sphere.

The moment of inertia of a hollow sphere can be calculated as I = \(2/3 * m * r^2\), where m is the mass of the sphere and r is its radius. Plugging in the given values, we have I = \(2/3 * (1.5×10^−2 kg) * (4.5×10^−2 m)^2.\)

Once the moment of inertia is determined, the period of oscillation for a physical pendulum can be calculated using the formula T = 2π * √(I/mgd), where T is the period, g is the acceleration due to gravity, and d is the distance from the point of suspension to the center of mass.

By substituting the values into the formula, the period of oscillation for the holiday ornament can be determined.

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Answer:

Explanation:

a) To calculate the deceleration of the car-driver, we can use the formula:

acceleration = (final velocity - initial velocity) / time

In this case, the initial velocity is 20 m/s, the final velocity is 0 m/s, and the time is 2 seconds. So, we have:

acceleration = (0 m/s - 20 m/s) / 2 s

acceleration = -10 m/s^2

The negative sign indicates that the deceleration is in the opposite direction of the initial velocity.

b) To calculate the force exerted on the car-driver, we can use Newton's second law of motion, which states that force is equal to mass times acceleration:

force = mass x acceleration

In this case, the mass of the car-driver is 60 kg, and the deceleration is -10 m/s^2 (as calculated above). So, we have:

force = 60 kg x (-10 m/s^2)

force = -600 N

The negative sign indicates that the force is in the opposite direction of the car-driver's initial velocity. This force is exerted on the car-driver by the seat and seat-belt, which are designed to restrain the car-driver and prevent them from flying forward due to the deceleration of the car.

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You have the following expression:

subtract 5 both sides of the equation:

Take into account that the absolute value of any number is equal to the same number but positive.

Then, you have:

and

Then, solve the previous equations:

5x - 8 = -27 add 8 both sides

5x = -27 + 8

5x = -19 divide by 5

x = -19/5

5x - 8 = 27 add 8 both sides

5x = 27 + 8

5x = 32 divide by 5

x = 32/5

Then, the solutions of the given equations are:

x = -19/5

x = 32/5

The treatment most likely to use is Superficial External bean Radiation Therapy. Then the correct option is B.

The electromagnetic spectrum consists of the range of all types of EM radiation. Radiation is a packet of energy that travels and spreads out.

It has radio waves, infrared waves, visible light waves, ultraviolet rays, and microwaves.

They possess high energy even to penetrate deep within the material. the electromagnetic spectrum has a longer wavelength and less frequency.

Haley noticed a small spot on her skin that turned out to be skin cancer.

Surgery, radiation, chemotherapy, and hormone therapy can all be used to relieve signs and symptoms.

Medications may relieve symptoms such as pain and shortness of breath. Palliative treatment can be used.

The treatment most likely to use is Superficial External bean Radiation Therapy.

Then the correct option is B.

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Answer:

Ub = 221.99m/s

Explanation:

(Ma x Ua)+(Mb x Ub) = (Ma + Mb)V

(331 x 3.87)+(208 x Ub) = (331 + 208)88

(1257.8) + (208 x Ub) = 47432

(208 x Ub) = 47432 - 1257.8

(208 x Ub) = 46174.2

Ub = 46174.2/208 = 221.99m/s

Ub = 221.99m/s

Answer:

4.75

Explanation:

M1V1 + M2V2 = M1V3 + M2V4

[(331*3.87) , 90°] + 0 = [(331*0.888) , 90°] + M2V4

M2V4 = 987.042 , 90°

divide through by M2

V4 = 4.75 m/s east

Explanation:

By Gay-Lussac's law

Pressure is directly proportional to its temperature at given volume.

When the temperature of a system goes up, the pressure also goes up, and vice versa.

Answer:

So, as pressure increases, temperature will increase as well or vice-  versa

Explanation:

The Ideal Gas Equation is PV = nRT, where :-

P = Pressure

V = Volume

n = number of moles

R = Molar Gas Constant

T = Temperature

In this, P ∝ T

=> So, as pressure increases, temperature will increase as well or vice-  versa

I think it's 3

Explanation:

trust me bro

Answer:

The circuit in series has a greater resistance.

Explanation:

The current is forced to flow throw two resistors instead of just one as it if it were in parallel.

Density of the metal is 8.9g/cm^3

Density:-

\(\boxed{\sf Density=\dfrac{Mass}{Volume}}\)

SI unit:-

SI unit of density is kg/m^3

CGS unit of density is g/cm^3

The rotational speed of the motor 3 in rpm. b. 92

The figure shows a hydraulic circuit that uses three chain conveyors. The torque that drives the motors is T: =1500 N.m. T2 =700 Nm and, T3 = 300Nm.The volumetric flow rate produced by the pump is 6.3 liters per minute. The displacement volume of the motors is V01 =1000 cm3/rev. V02 =1000 cm3/rev and, V09 =500 cm3/rex.

The motors have a volumetric efficiency of 0.9 and an overall efficiency of 0.85. The leakage of hydraulic motors 1 and 3 is internal completely, while the leakage of hydraulic motor 2 is external completely.The orifice of the flow control valve has a diameter of 0.5 mm. The capacity coefficient of the needle valve is 0.7.

The pressure losses through the pipes are ignored. The volumetric flow rate through the needle valve is Q = C × A2 × ΔP / ρ where C is the capacity coefficient, A is the area of the orifice, ΔP is the pressure difference through the needle valve, and ρ is the density of the fluid. The density of the oil used in the hydraulic system is 860 kg/m3. We need to determine the rotational speed of motor 3 in rpm.

So,Let’s first determine the volumetric flow rate required by hydraulic motor 3. Using the expression of volumetric flow rate through the needle valve, we have Q = C × A2 × ΔP / ρ… (i)We are given that the capacity coefficient of the needle valve is 0.7. Its orifice diameter is 0.5 mm.

Hence, the area of the orifice is given byA2 = π d2 / 4where d is the diameter of the orifice. So, A2 = π × (0.5 mm)2 / 4 = 0.196 mm2 = 1.96 × 10-7 m2Using equation (i), we haveQ = C × A2 × ΔP / ρNow, we will calculate ΔP. To do this, we need to determine the flow rates Q1, Q2, and Q3.Let Q’ be the total volumetric flow rate through the system.

Since the overall efficiency of the system is given as 0.85, we haveQ’ = 0.85 × 6.3 l/min = 5.355 l/min = 5.355 × 10-3 m3/minWe know that the volume of fluid passing through the hydraulic motors is equal to their displacement volume multiplied by the number of revolutions per unit time.So, we haveQ1 = V01 × n1 … (ii)Q2 = V02 × n2 … (iii)Q3 = V03 × n3 … (iv)where V01, V02, and V03 are the displacement volumes of hydraulic motors 1, 2, and 3, respectively.

We are given that V01 = V02 = 1000 cm3/rev and V03 = 500 cm3/rev, which gives V01 = V02 = 1 × 10-6 m3/rev and V03 = 0.5 × 10-6 m3/rev.Substituting equations (ii), (iii), and (iv) in equation (i), we haveQ = C × A2 × (Q1 + Q2 - Q3) / ρSolving for Q3, we getQ3 = (Q1 + Q2 - Q) / C × A2 × ρPutting the given values in the above expression, we haveQ1 = V01 × n1 = (1 × 10-6 m3/rev) × n1Q2 = V02 × n2 = (1 × 10-6 m3/rev) × n2Q3 = V03 × n3 = (0.5 × 10-6 m3/rev) × n3Q = 5.355 × 10-3 m3/min = 5.355 × 10-3 / 60 m3/s = 8.925 × 10-5 m3/sA2 = 1.96 × 10-7 m2C = 0.7ρ = 860 kg/m3

Substituting the above values, we get8.925 × 10-5 = (1 × 10-6 × n1 + 1 × 10-6 × n2 - 0.5 × 10-6 × n3) / (0.7 × 1.96 × 10-7 × 860)Solving for n3, we have n3 = 91.6 rpmSo, the correct option is b. 92.

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Answer:

Release

Explanation:

The water is heated until

Answer:

The real answer is C : organize the data in a chart or a table.

False. Velocity is a vector and is measured in m/s (in SI, anyway).

The pH of the solution is approximately 2.919.

To determine the pH of the solution, we need to consider the dissociation of HF (hydrofluoric acid) and the equilibrium between HF and its conjugate base, F^-.

HF can dissociate according to the equation: HF ⇌ H^+ + F^-

Given that the solution is 0.25 M in HF and 0.15 M in F^-, we can assume that HF is the predominant species and the concentration of F^- is relatively low. Therefore, we can consider HF as the acid and F^- as the conjugate base.

The pKa of HF is given as 3.14. The pKa is a measure of the acid's strength, and it is related to the equilibrium constant for the dissociation reaction. In this case, pKa = -log(Ka), where Ka is the acid dissociation constant.

Using the Henderson-Hasselbalch equation, pH = pKa + log([A-]/[HA]), we can calculate the pH of the solution.

pH = 3.14 + log(0.15/0.25) ≈ 3.14 + (-0.221) ≈ 2.919

Therefore, the pH of the solution is approximately 2.919.

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Maximum generation of electricity: 144 MW, or 40 turbines divided by 3.6 MW. Consumption of electricity annually: 7.28 MWh, or 0.15 x 166 MMBtu/year. Assumed a household of 2.5 people; turbines require a capacity factor of 13.9%.

1. To calculate the maximum possible electricity that could be generated by this project, we increase the nameplate capacity of the turbines by the number of turbines and assume they work at full capacity for the complete time:

Maximum electricity generation = Nameplate capacity per turbine * Number of turbines

Nameplate capacity per turbine = 3.6 MW

Number of turbines = 40

Maximum electricity generation = 3.6 MW * 40 = 144 MW

Hence, the Maximum electricity generation that may well be produced by this wind farm project is 144 MW.

2. To calculate the annual per capita electricity utilize for Unused York, we begin with calculating the electricity utilize per capita based on the Per capita annual energy:

electricity use per capita = Per capita annual energy * electricity use rate

Per capita annual energy = 166 MMBtu/year

energy use rate = 15% = 0.15

electricity use per capita = 166 MMBtu/year * 0.15 = 24.9 MMBtu/year

Following, we change over the electricity use per capita from MMBtu to MWh:

1 MMBtu = 0.293 MWh

electricity use per capita (MWh) = 24.9 MMBtu/year * 0.293 MWh/MMBtu = 7.28 MWh/year

In this manner, the yearly electricity use per capita for New York is around 7.28 MWh.

3. To appraise the electricity use for households, we duplicate the electricity use per capita by the number of individuals in a family. Let's accept a normal family measure of 2.5 individuals (which incorporates fragmentary people):

energy use per family =electricity use per capita * Average household measure

energy use per family = 7.28 MWh/year * 2.5 = 18.2 MWh/year

To calculate the specified capacity factor for the turbines to control these families, we divide the real control yield by the most extreme control capability:

Capacity factor = actual power output / maximum power capability

actual power output = energy use per family

maximum power capability = Nameplate capacity per turbine * Number of turbines

Capacity factor = 18.2 MWh/year / (3.6 MW * 40) = 0.139

Subsequently, the 40 turbines would be got to accomplish a capacity factor of around 13.9% to effectively power the households expecting an average household value of 2.5 individuals.

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Answer:

Explanation:

The slope of the graph is the spring constant     n/m

Answer:

physics answers everything to understand biology you need to understand chemistry which is connected to physics which is connected to mechanics like fluid mechanics or quantum mechanics which is connected to math and all of that is science not particularly physics but physics can answer all of the questions you asked and more.

Explanation:

Answer:

sorry im only in fifth grade

Explanation:

1/second Equals 1.99 x 10-7 radians. Earth rotates at a rate of 1.99 x 10-7 per second.

If the angles were not approximately 1 one of, then the radius times the angle's measurement in radians, or the width of a arc s = r, would be the ratio of the distance by the point located on the circle. The result of substituting into the linear speed formula is v = r t or v = r t.

A pseudovector used in physics to express how quickly the angular location or orientation of an item changes over time is called an angular velocity or rotational velocity.

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The time of motion of the satellite is 1.65 hours. The speed of the satellite from the centre of the Earth is 26,945.35 km/h.

This is the motion of an object in which the object travels in a straight line and its velocity remains constant along that line as it covers equal distances in equal intervals of time, regardless of time duration.

The time of motion of the satellite in hours is calculated as follows;

t = ( 99 min / 1 ) x ( 1 hour / 60 min )

t = 1.65 hours

The speed of the satellite from the centre of the Earth in km/h is calculated as follows;

v = ( 2πr ) / ( t )

where;

r is the distance of the satellite from the centre of the Earth

The position of the satellite above the surface of the Earth = 705 km

The radius of Earth = 6,371 km

The total distance of the satellite from the centre of the Earth = 705 km + 6,371 km = 7,076 km

v = ( 2π x 7076 ) / ( 1.65 )

v = 26,945.35 km/h

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The complete question is attached with the answer below.

Answer:

true

Explanation:

they have a reflecting surface that is recessed inward

By angular speed, the period of oscillation is 0.63 second.

We need to know about the angular speed of harmonic oscillation. the angular speed can be determined as

ω² = k / m

where ω is angular speed, k is spring constant,  and m is the mass.

The angular speed can be calculated by

ω = 2π/T

Hence,

ω² = k / m

(2π/T)² = k / m

where T is period.

From the question above, we know that:

m = 2 kg

k = 200 N/m

By substituting to the equation, we get

(2π/T)² = k / m

(2π/T)² = 200 / 2

(2π/T)² = 100

square root

2π/T = √100

T = 2π / √100

T = 0.63 second

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Answer: GPS

Explanation:

I took the test 2021

Answer:

okkkkkkkkkkkkkkkkkkkk

Answer: B

Explanation: it is perpendicular to a surface

Answer:

it is perpendicular to a surface

Explanation:

The linear (tangential) velocity of the lateral malleolus at frame 2 using the central difference formula is 0.42.

(A) To calculate the angle of the leg at frame 4, we need to use the given data and the formula.
Angle of leg = arctan(y/x)

Where x and y are the corresponding values in the table.

For frame 4,x = -0.206, y = 0.979 Angle of leg = arctan(0.979/-0.206)

≈ -79.67 degrees

Therefore, the angle of the leg at frame 4 is approximately -79.67 degrees.

(B) To calculate the linear (tangential) velocity of the lateral malleolus at frame 2 using the central difference formula, we need to use the given data and the formula.

The formula for the central difference is: f'(x) = (f(x+h) - f(x-h))/2h where f(x) is the function, h is the step size, and f'(x) is the derivative of the function.

Let's find the tangential velocity at frame 2 using the data for lateral malleolus displacement over time. Using the central difference formula:

f'(x) = (f(x+h) - f(x-h))/2h

where x = 2, h = 0.01, and f(x)

= lateral malleolus displacement at frame

2f'(2) = (f(2+0.01) - f(2-0.01))/2*0.01f'(2)

= (-0.2256 - (-0.234))/0.02f'(2)

= 0.42

Therefore, the linear (tangential) velocity of the lateral malleolus at frame 2 using the central difference formula is 0.42.

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Answer: Stored energy

Answer:

The magnetic field strength of an electromagnet is therefore determined by the ampere turns of the coil with the more turns of wire in the coil the greater will be the strength of the magnetic field.

Explanation:

Explanation:

What is the difference between the displacement of the photographer flying from FL to CA and the displacement of astronauts flying from CA back to FL? The displacements have opposite directions. Car 'A' travels from New York City to Miami ata speed of 25 m/s.