n open heart surgery, a much smaller amount of energy will defibrillate the heart. What voltage is applied to the 8.00 μF capacitor of a heart defibrillator that stores 40.0 J of energy?

Your car is skidding to a stop from a high speed. All the force acting on the object are Kinetic friction force, Normal force and Weight.

The forces acting on the car while it is skidding to a stop include:

1. Kinetic friction force (f⃗k): This force acts opposite to the direction of motion and is responsible for slowing down the car.

2. Normal force (n⃗): This force is perpendicular to the surface and acts to support the weight of the car.

3. Weight (w⃗): This force is the gravitational force acting on the car due to its mass and acts vertically downward.

Therefore, the correct forces acting on the car are:

- Kinetic friction force (f⃗k)

- Normal force (n⃗)

- Weight (w⃗)

The forces "thrust" and "tension" are not applicable in this context as they are typically associated with the motion of objects propelled by engines or connected by ropes or strings, which do not apply to a skidding car scenario.

Learn more about Normal force here:

https://brainly.com/question/28788588

#SPJ11

The correct answer is 5.7 N

Given,

Mass of the box = 0.824 kg

Force on the right = 8.3 N

Force on the left = 2.6 N

Here, the horizontal force will be the net force.

Force is the product of mass of an object and the acceleration applied to it.

There are different forces acting on an object which are acting on different directions.

This is given by F = ma where m is the mass and 'a' is the acceleration.

The net force is the total force applied on that object.

The forces in the same direction will add up to give net force while the difference in the forces in different directions will be the net force.

Here, the forces are applied on the opposite directions (right and left)

Net force = Force on the right - Force on the left

Net force = 8.3 - 2.6 = 5.7 N

Therefore, we conclude that the net horizontal force on the box is 5.7 N.

To learn more about force, refer: https://brainly.com/question/1554224

#SPJ4

Answer:

C

Explanation:

yeah it is

Answer: dashed

Explanation:

Answer:

Dotted

Explanation:

a double yellow is no pass

a dotted o one side may pass

nit sure about the just dotted tho

Answer:

T = 3.17 s

Explanation:

Given that,

The length of the pendulum, l = 2.5 m

We know that the period of oscillation of the pendulum is given by :

\(T=2\pi \sqrt{\dfrac{l}{g}}\)

Where

g is the acceleration due to gravity

\(T=2\pi \sqrt{\dfrac{2.5}{9.8}}\\\\T=3.17\ s\)

So, the period of oscillation is equal to 3.17 s.

The amplitude of the air vibrations caused by a sound wave with a frequency of 249 Hz and an intensity of 7.7e-06 watts/m^2 is approximately 6.23 micrometers.

The relationship between frequency, intensity, and amplitude of a sound wave can be determined using the formula for sound intensity in air,

which is given by \(I = (1/2)\rho v \omega ^2A^2,\)

where I is the sound intensity, ρ is the density of the medium (air), v is the velocity of sound in air, ω is the angular frequency (2πf), and A is the amplitude of the sound wave.

In this case, we are given the frequency (f) as 249 Hz and the intensity (I) as 7.7e-06 watts/m^2. The velocity of sound in air (v) is approximately 343 m/s.

By rearranging the formula, we can solve for the amplitude (A) as follows:

\(A^2 = (2I) / (\rho v\omega ^2)\)

First, we need to calculate the angular frequency (ω) using the given frequency (f).

ω = 2πf = 2π(249 Hz).

Next, we substitute the values into the formula and calculate the amplitude:

\(A^2 = (2 \times 7.7 e-06 ) / (1.225 \times 343 \times (2\pi (249 ))^2)\)

\(A^2 = 1.66e-09\)

Taking the square root of both sides, we find:

A ≈ 4.07e-05 meters

Since the amplitude is given in meters, we convert it to micrometers by multiplying by 10^6:

\(A =4.07e-05 meters \times 10^6 = 40.7 micrometers\)

Therefore, the amplitude of the air vibrations caused by this sound wave is approximately 40.7 micrometers or 6.23 micrometers (rounded to two decimal places).

To learn more about sound wave here brainly.com/question/31851162

#SPJ11

Answer:

86 mph

Explanation:

brainliest pls

Answer: c) The line shows a change in speed if its angle changes.

I'm not sure

Explanation:

Answer:

I would assume that the box slows down due to the frictional force between the floor and the box. In addition, the frictional force points opposite of the boxes motion. As we know, the box was given an initial speed, therefore, having an applied force. Hence, we can conclude that  the frictional force opposing the motion of the crate is equal to the applied force but acting in the opposite direction. This frictional force is called static friction. When we increase the applied force (push harder), the frictional force will also increase until it reaches a maximum value.

Hope that helps!

The acceleration of the object is determined as -2.5 m/s².

Acceleration is the rate of change of velocity with time.

Mathematically, acceleration is given as;

a = Δv/Δt

a = (v₂ - v₁)/(t₂ - t₁)

where;

From the graph;

the initial velocity = 40 m/s

the final velocity = 10 m/s

the final time = 12 seconds

the initial time = 0 second

acceleration = (10 - 40) / (12 - 0)

acceleration = -30/12

acceleration = -2.5 m/s²

Thus, the acceleration of the object is determined as -2.5 m/s².

Learn more about acceleration here: https://brainly.com/question/605631

#SPJ1

Answer:  B ) inverted and smaller

Explanation:

I Got It Right On my Quiz

Answer:

The answer is positive.

Explanation:

In a middle of an atom, nucleus, contain neutrons (neutral charge) and protons (positive charge) so it will become positively charge nucleus.

The conversion from meters to astronomical units is done by dividing the average distance by 1. 5 × 10^11.

Just as different areas of human endeavor has different units, the unit of length in astronomy is astronomical units. The astronomical unit is defined as the distance between the center of the earth and the sun.

To  solve a problem using the equation for Kepler's third law, Enrico must convert the average distance of Mars from the Sun from meters into astronomical units. This is done by dividing the average distance by 1. 5 × 10^11.

Learn more: https://brainly.com/question/17638582

The term that describes weathering breaks down the rock. Weathering is the breakdown of rocks, soil, and other geological material under the influence of physical, chemical, or biological agents.

The term weathering refers to a variety of processes that wear away or weaken rocks over time. Weathering is classified into two categories: chemical and physical. Chemical weathering occurs when rock is chemically broken down by reactions with acid rain or other chemicals.

Physical weathering, on the other hand, occurs when rock is broken down into smaller pieces by water, wind, ice, or other forces that do not change the chemical composition of the rock. In conclusion, the term that describes weathering is breaking down the rock.

You can learn more about Weathering at: brainly.com/question/12426129

#SPJ11

Answer:

Mass and kinetic energy have a positive relationship, which means that as mass increases, kinetic energy increases, if all other factors are held constant.

In this state, Kinetic energy is equal to half of the product mass and velocity. SI unit is joules. So it's if the mass is doubled then the kinetic energy also gets doubled.

Answer:

hydrochlorine +12÷B to the power of 4 -× y reapeated zminus 2 to the power of 9

Answer:

US Fish and Wildlife Service

Explanation:

The federal agency that helps foreign governments with international conservation efforts are the US Fish and Wildlife Service. This organization focus includes enforcing federal wildlife laws, protecting endangered species, manage migratory birds, restoring nationally significant fisheries; conserving and restoring wildlife habitat, such as wetlands, and even helping foreign governments with their international conservation efforts.

Answer:

The correct answer is B

Explanation:

If the body temperature was 10°C, the approximate time of death would be between 12 and 36 hours, depending on the surroundings and other variables.

However, it's crucial to note that the time of death can be influenced by several factors like the environment, clothing, and the person's physical state. The time of death can also be estimated by measuring the body temperature, also known as algor mortis.

After death, the body temperature decreases at a rate of roughly 1.5°C per hour, though this might change depending on the surroundings and other variables. It is impossible to pinpoint the exact time of death if the body temperature was 10°C, although it may indicate that death happened several hours earlier because the body temperature will continue to drop after death.

However, other techniques, like lividity, rigor mortis, and inspection of the stomach contents, are more accurate, hence it is not advised to utilize this method alone to establish the time of death. For a more precise estimation of the time of death, a forensic specialist should be consulted.

Learn more about time of death here:

https://brainly.com/question/16390042

#SPJ1

Answer:

A. Mg+2

Explanation:

im not sure, but since it lost two electrons which have a negative charge it gained two charge.

The wavelength of the surface wave in 1.2 m

(a)since there are two antinodes and one node(where water is motionless), This is the first mode of a pipe open at both ends

so \lambda= 2L

\lambda=2(1.3)

\lambda=2.6m

(c)frequency= 10/22=0.455 Hz

v= f\lambda

v=0.455(2.6)

\lambda=1.2 m/s

Surface waves are typically lower frequency than body waves and move through Earth's surface material more slowly. On a seismogram, they may be easily differentiated. Deeper earthquakes result in weaker surface waves, which are stronger as the earthquake depth increases.

to know more about  surface waves here:

brainly.com/question/13779567

#SPJ4

The two terms that have been included in the question are:1. Physical Science2. Accommodated FinalNow let's proceed to the question.The statement "It increases the distance over which a force needs to be applied" is describing the property of mechanical advantage.

For such more question on mechanical

https://brainly.com/question/30403434

#SPJ8

Answer:

4

Explanation:

Answer:   0.0035

============================================

Explanation:

The exponent is -3, so we move the decimal point 3 spots to the left to go from 3.5 to 0.0035

If the exponent was positive, then we would move the decimal point to the right that amount of spaces.

To determine the stress exerted by the base plate on the concrete slab, we need to calculate the force per unit area.

Given:

Weight of the object = 15,000 lb

Width of the base plate (b) = 8 in

Length of the base plate (l) = 2 ft

Area of the base plate (A) = b * l

First, let's convert the length from feet to inches:

Length of the base plate (l) = 2 ft = 2 * 12 in = 24 in

Now, we can calculate the area of the base plate:

A = b * l = 8 in * 24 in = 192 in^2

Next, we calculate the stress on the concrete slab by dividing the weight by the area:

Stress = Weight / Area

(a) Stress in lb/in^2:

Stress = 15,000 lb / 192 in^2 ≈ 78.125 lb/in^2 (rounded to the nearest whole number)

(b) Stress in lb/ft^2:

Since 1 ft^2 = 144 in^2, we can convert the stress from lb/in^2 to lb/ft^2 by multiplying by the conversion factor:

Stress = 78.125 lb/in^2 * (144 in^2 / 1 ft^2) ≈ 11,250 lb/ft^2 (rounded to the nearest thousand)

Therefore, the stress exerted by the base plate on the concrete slab is approximately:

(a) 78 lb/in^2

(b) 11,250 lb/ft^2

Learn more about force per unit area here:

brainly.com/question/12540639

#SPJ11

Answer:

The horizontal distance the pumpkin will travel after it slips from the eagle is 17.02 m

Explanation:

Given;

height above the ground, h = 16.4 m

speed of the eagle, v = 9.3 m/s

The time it will take the pumpkin to fall at the given height is calculated as;

\(t = \sqrt{\frac{2h}{g} }\\\\t = \sqrt{\frac{2*16.4}{9.8} }\\\\t = 1.83 \ s\)

The horizontal distance traveled at this time is given by;

x = vt

x = (9.3)(1.83)

x = 17.02 m

Therefore, the horizontal distance the pumpkin will travel after it slips from the eagle is 17.02 m

As a planet orbits a star, it makes a big ellipse, but its gravity has a similar effect on the star, causing the star to make a small star. This is called the "gravitational wobble" or "stellar wobble".

As a planet orbits a star, it follows an elliptical path due to the gravitational pull of the star. The shape of the planet's orbit is determined by the balance between the gravitational force of the star and the planet's own motion. However, the planet's gravity also affects the star, causing it to move slightly in response to the planet's pull. This motion of the star is much smaller than that of the planet, but it is still measurable and can be observed. This phenomenon is known as the planet's gravitational influence on the star, which causes the star to wobble slightly. This effect is used by astronomers to detect and study exoplanets orbiting distant stars.

To learn more about gravitational wobble, refer:-

https://brainly.com/question/31168966

#SPJ11

The phenomenon that occurs when a planet orbits a star, causing both the planet and the star to make elliptical motions due to their mutual gravitational effects.

This phenomenon is known as the "wobble" or "stellar wobble" and is caused by the gravitational interaction between a planet and its star. As a planet orbits a star, it exerts a gravitational force on the star, causing it to move slightly in response. This movement results in a small, periodic shift in the star's spectral lines, which can be detected by astronomers.

By analyzing this shift, astronomers can determine the presence, size, and orbital characteristics of planets around other stars. At the same time, the planet's gravity also affects the star, causing the star to make a smaller elliptical motion in response. This mutual gravitational interaction results in the observed stellar wobble.

To know more about stellar wobble:

https://brainly.com/question/29542172

#SPJ11

Answer:

2. divide the distance and time

speed=distance÷time

Answer:4 and 5

Explanation:it you add 1+3 and 2+3 it is 4 and 5