a car is stopped at a traffic signal. when the light turns green, the car accelerates from 0 to 4.1 m/s in 0.526 seconds. what is the average force in n (newtons) experienced by a passenger of mass 81.9 kg in the car when the car accelerates?

a. The time it takes for the ball to reach the ground is calculated using the equation

t = d/v

Where t is time, d is the distance the ball has to travel, and v is the speed of the sound.

In this case, d = 2.3 meters and v = 334 m/s

Therefore, t = 2.3/334 = 0.0069 seconds.

b. The distance Jerry was standing away from the window is equal to the speed of sound multiplied by the time it took for the ball to reach the ground.

d = vt

Therefore, d = (334 m/s)(0.0069 s) = 2.3 meters.

Therefore, Jerry was standing 2.3 meters away from the window.

Answer:

3.33A

Explanation:

total resistors in series circuit (4.0+2.0) = 6.0

following ohms law. V = IR, then I = V/R; but the supply voltage given equals =20,

therefore, 20/6 = 3.33A,

The velocity of blood flow in capillaries can vary depending on various factors, including blood pressure, viscosity, and the specific characteristics of the capillary bed.

The velocity of blood molecules flowing through a capillary can be explained by the principles of fluid dynamics. In a capillary, blood flow is characterized by laminar flow, which means that the blood flows in smooth, parallel layers.

The velocity of blood molecules can be affected by various factors, including the radius of the capillary. According to the principle of continuity, which states that the volume flow rate of an incompressible fluid remains constant along a tube, the velocity of blood molecules is inversely proportional to the cross-sectional area of the capillary.

As the radius of the capillary decreases, the cross-sectional area decreases as well. This leads to an increase in the velocity of blood molecules. This relationship can be explained by the equation of continuity:

A1V1 = A2V2

Where A1 and A2 are the cross-sectional areas at two different points along the capillary, and V1 and V2 are the corresponding velocities at those points.

Since the radius is inversely proportional to the cross-sectional area (A), we can rewrite the equation as:

r1^2 * V1 = r2^2 * V2

Where r1 and r2 are the radii at two different points along the capillary.

From this equation, we can observe that as the radius (r) decreases, the velocity (V) increases to maintain the constant flow rate. This means that blood molecules flow faster through narrower capillaries compared to wider ones.

To express the velocity in centimeters per second, it is important to consider the units of the radius. If the radius is given in centimeters, then the velocity will also be in centimeters per second. However, if the radius is given in another unit such as millimeters, the velocity would need to be converted accordingly.

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Answer:

hhmmmmmhmmmm hmhmmmm hmmm yeah i got nothing

Explanation:

The length of the pulse is 3.60 x 10⁻³ and there are 5 x 10¹⁹ photons in each pulse.

Energy = hc / λ

            = 2 x 10⁻²⁵ / 694.4 x 10⁻⁹

            = 28.8 x 10⁻²⁰J

To find the length of pulse,

L = ct

Where,

c is the speed of light.

t is the time.

By substituting the values,

L = ct

  = (3.00 x 10⁸ m/s) ( 1.20 x 10⁻¹¹ s)

L= 3.60 x 10⁻³

Therefore the length of the pulse is 3.60 x 10⁻³

Now, the total energy can be calculated by calculating the number of photons as follows:

Total energy = nE

By substituting,

.150 J = n( 28.8 x 10⁻²⁰J)

n  = .150 / 28.8 x 10⁻²⁰J

n = 5 x 10¹⁹

The number of photons in each pulse is  5 x 10¹⁹.

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Answer:

Explanation:

Light gets reflected by a medium of higher  refractive index and then from a medium of lower refractive index a second time  so there will  be an additional phase difference of 180⁰.

For constructive interference in thin films  the condition is as follows .

2μd = (2n+1) λ/2

where μ is 1.56 , d is 80 nm λ is wave length of ligh and n is an integer .

For longest wavelength , n = 0

λ = 4μd

= 4 x 1.56 x 80 nm

= 499.2  nm .

Answer: 15 kg*m/s

Explanation:

Momentum = mass*velocity

Momentum = 3kg*5 m/s

Momentum = 15 kg*m/s

Answer:

15 kg m/s

Explanation:

Momentum = mass xvelocity

Momentum = 3kgx 5 m/s

Momentum = 15 kg m/s

When an object is released with an initial velocity upward, the direction of its acceleration is typically downward.

This is because the force of gravity, which acts on the object, pulls it in the opposite direction to its motion. According to Newton's second law of motion, the net force on an object is equal to its mass multiplied by its acceleration. In this case, the force of gravity acts as the net force, causing the object to accelerate downward.

The acceleration due to gravity is approximately 9.8 meters per second squared on Earth, and it acts downward towards the center of the planet. Therefore, when the object is released with an initial velocity upward, the gravitational force causes it to decelerate and eventually change direction, resulting in a downward acceleration. This downward acceleration opposes the initial upward velocity of the object until it eventually reaches its peak and starts to fall back down under the influence of gravity.

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Answer:

The Earth is massive enough that the pull of gravity maintains its roughly spherical shape. Most of its deviation from spherical stems from the centrifugal force caused by rotation around its north-south axis. This force deforms the sphere into an oblate ellipsoid.

Answer:

35.67 m/s

Explanation:

Applying the formular for range,

R = u²sin2∅/g....................... Equation 1

Where R = Range, u = Initial Velocity, ∅ = angle of launch, g = acceleration due to gravity

make u the subject of the equation

u = √(Rg/sin2∅)............. Equation 2

Given: R = 122 m, g = 9.8 m/s², ∅ = 55°

Substitute these values into equation 2

u = √[(122×9.8)/(sin(2×55))]

u = √(1195.6/sin110)

u = √(1272.33)

u = 35.67 m/s

Answer:

35.67

Explanation:

Its the correct answer for Acellus

Answer:

i feel like it is 9,000

Explanation:

all i did was multiplied T-T

Answer:

162000

hope thats the correct answer

Answer: west

Explanation: the sunset always sets in the west.

False. The phrase "riding off into the sunset" is a common expression often used in literature and film to symbolize a character's departure or journey toward a new adventure or unknown future.

While it is a poetic and metaphorical image, it doesn't necessarily indicate the direction of travel. In reality, the direction in which someone is traveling when riding into the sunset could be any direction, depending on their starting point and the specific circumstances of the scene.

Sunsets occur in the western part of the sky, which is why the phrase has become associated with that direction. However, it is important to note that the phrase itself does not provide a definitive indication of the direction in which the character is traveling. It is a literary device used to evoke a sense of closure, transition, or even mystery, rather than to convey a specific compass direction. Therefore, the statement is false, as "riding off into the sunset" does not necessarily mean traveling west.

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0 to 60 mph in 4.5 seconds

Explanation:

Electric field refers to the area around the charged particle in which it affects other charged particles. The electric field magnitude at point P will be  3 × 10⁻⁶ N/C.

The electric field can be measured in volts per meter (V/m) or newtons per coulomb (N/C).

There are two types of electric fields which are as follows: Uniform electric field & Non-uniform electric field.

We can find the magnitude of the electric field by using the formula as follows: |E| = kq/d²;

where k = 9 × 10⁹ Nm²/C², q = charge on wire, and d = distance between point P and wire.

So, the magnitude of the electric field these wires produce at point P, which is 60.0 cm from each wire is:

|E| = kq/d²|E| = 9 × 10⁹ Nm²/C² × (1.8 × 10⁻⁶ C)/(0.6 m)²

|E| = 3 × 10⁻⁶ N/C.

Thus, the magnitude of the electric field these wires produce at point P, which is 60.0 cm from each wire is 3 × 10⁻⁶ N/C.

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1) Clapping your hands - Energy is converted from mechanical energy to sound energy

2) Turning on a light - Energy is converted from electrical energy to heat and light energy

Energy is converted from one form to another and it neither created nor destroyed. This is the first law of thermodynamics. This law means that energy does not get lost in the system. We can not have the energy in the system just suddenly vanish into the thin air. It must have to change from one form to the next.

Now we know that the conversion of energy from one form to the next is not a hundred percent efficient process, some energy may ne lost on the way! This is the statement that we could call the second law of thermodynamics.

Let us look at the energy conversions in the following cases;

1) Clapping your hands - Energy is converted from mechanical energy to sound energy

2) Turning on a light - Energy is converted from electrical energy to heat and light energy

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Answer:

The answer is A because it is a resource that takes many many years to make more of and we cannot make it ourselves

Answer:

C and E

Explanation:

The wavelength of a transverse wave can be measured as the distance between two adjacent crests. The wavelength of a longitudinal wave can be measured as the distance between two adjacent compressions. Short-wavelength waves have more energy than long-wavelength waves of the same amplitude.

Answer:

Electrical energy is transferred from the wall socket to the computer. Electrical energy is transformed to sound and light energy when the computer is turned on. Electrical energy is transformed to heat energy when the computer stays on.

Answer:1 Sprint 54 cm Beyond

2 Sprint 41 cm Beyond

3 Sprint 68 cm Beyond

4 Sprint 32 cm Beyond

5 Sprint 44 cm Beyond

6 Jog   31 cm Beyond

7 Jog         22 cm Beyond

8 Walk 17 cm Beyond and left

9 Walk 6 cm Beyond

Explanation:

Answer:

1 Sprint 54 cm Beyond

2 Sprint 41 cm Beyond

3 Sprint 68 cm Beyond

4 Sprint 32 cm Beyond

5 Sprint 44 cm Beyond

6 Jog 31 cm Beyond

7 Jog 22 cm Beyond

8 Walk 17 cm Beyond and left

9 Walk 6 cm Beyond

Explanation: edmentum sample answer

The speed of the Toyota at impact can be calculated using kinetic friction  which is equal to 7.9 m/s

The speed of the Toyota at impact can be calculated using the coefficient of kinetic friction.

The equation for the speed is: speed = √(2fμd), where f is the force of the impact, μ is the coefficient of kinetic friction, and d is the distance that the cars skid.

In this case, the force of the impact can be calculated by multiplying the masses of the two cars together, which comes to

4.4 x 10³ kg. With μ = 0.4 and d = 2.8 m

The speed of the Toyota at impact can be calculated to be 7.9 m/s.

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Given data

*The given distance is s = 128 m

*The initial speed of the motorcycle is u = 0 m/s

*The final speed of the motorcycle is v = 32.6 m/s

The expression for the acceleration of the bike is given by the kinematic equation of motion as

Substitute the known values in the above expression as

Hence, the acceleration of the bike undergoes is a = 4.15 m/s^2

The force constant of the bungee cord when a person of mass 70 kg leaps on a bridge with it is 219.52 N/m.

The force constant or spring constant is a measure of the stiffness of a spring. It is the force per unit deformation of the spring. Its SI unit is N/m.

To calculate the force constant of the bungee cord, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the force constant of the bungee cord is 219.52 N/m.

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Answer:

gravity

Explanation:

gravity pulls you down so for example you will weigh more on earth than on the moon because earths gravitational pull is greater.

If two marbles of the same mass collide and stick together, angle between the displacement vectors after the crash should be 90 degrees. This is because the momentum of the system is conserved in a collision, and the momentum is a vector quantity.

In a two-dimensional collision, momentum of each marble can be represented as a vector, with magnitude equal to the product of its mass and velocity, and direction equal to the direction of its velocity. After collision, the total momentum of the system is the sum of the momentum vectors of the two marbles, which can be represented as a resultant vector. Angle between resultant vector and vectors representing initial momentum of each marble should be 90 degrees.

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Answer:

A

Explanation:

Answer:

im not really sure, sorry

The general manager target bonus plan includes financial incentives based on achieving specific performance goals.

The general manager target bonus plan is a type of incentive program that rewards managers for achieving specific performance goals. The plan typically includes financial incentives, such as bonuses or profit sharing, that are tied to the achievement of predetermined goals, such as revenue growth, cost reduction, or customer satisfaction.

The plan may also include other performance metrics, such as employee engagement or operational efficiency. By linking financial incentives to specific performance goals, the plan encourages managers to focus their efforts on areas that are critical to the success of the organization and helps align their interests with those of the company. Overall, the general manager target bonus plan is a key tool for motivating and rewarding managers and driving performance improvement within an organization.

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Answer:

C

Explanation:

Force downplane =   m g sin (angle) = 30 * 9.81 * sin (50) = 225.4 N

     since F = ma

              225.4 = 30 a       a = 7.51 m/s^2

Normal force will be   mg cos (50) = 189 N

The magnitude of the acceleration of the penguin sliding down a slope of 50° is 7.5 m/s^2. The magnitude of the normal force the penguin feels is 189 N.

The magnitude of the acceleration of the penguin and the normal force it feels depend on the inclined plane on which it is sliding. In Physics, we know that the acceleration due to gravity is 9.8 m/s^2 and it acts downwards at all times. However, when an object is on an inclined plane, part of this acceleration is used to pull the object down the slope. This is given by: a = g * sin(θ) where a is the acceleration, g is the acceleration due to gravity and θ is the angle of inclination.

So, in this scenario: a = 9.8 * sin(50°) = 7.5 m/s^2, this is the magnitude of the acceleration of the penguin sliding.Talking about the Normal force, Normal force (n) is given by the expression: n = m * g * cos(θ), where m is the mass of the object. Substituting the given values: n = 30 kg * 9.8 m/s^2 * cos(50°) ≈ 189 N. So, the magnitude of the normal force the penguin feels is about 189 N.

Therefore, your answer is: C. a = 7.5 m/s^2. n = 189 N

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