The Code generally requires receptacles installed in an unfinished basement to be GFCI protected. The exception(s) to the general rule includes a single receptacle installed to serve a permanently installed alarm system (true or false)

Answer:

the path the object follows is called its trajectory so A. trajectory

Answer:

i dont know i want points tho

Explanation:

Answer:

In the surface of the moon, gravitational acceleration is 1.63 m/s*2.

Explanation:

An object of mass M will accelerate gravitationally at a distance R if it is at the following distance:

g = G*M/R^2

Where the gravitational constant is G.

G = 6.67*10^(-11) m^3/(kg*s^2)

At the surface of a moon, the distance between its surface and its center will be equal to its radius, since a moon's mass is concentrated at its center, thus:

R = 1740 km

It's important to remember that we need meters in order to work:

1 km = 1000 m

so:

1740 km = (1740)*1000 m = 1740000 m

R =  1740000 m

Basically, the mass consists of:

M = 7.4x10^22 kg

Incorporating all that into the gravitational acceleration equation, we get:

g = (6.67*10^(-11) m^3 / (kg*s^2))*(7.4x10^22 kg) / ( 1740000 m)^2

g = 1.63 m / s^2

In the surface of the moon, gravitational acceleration is 1.63 m / s*2.

Answer:

Fuel + O2 → CO2 + H2O

Explanation:

The net force that it would produce here is 20N

F(net)= F1 + F2

F1=15N

F2=5N

therefore

15+5 = 20N

The vector sum of the forces exerted on a particle or object is known as the net force.

The net force is a single force that cancels out the original forces' influence on the motion of the particle.

Read more about force here:

https://brainly.com/question/12970081

#SPJ1

Im pretty sure the answer is A)

Answer:

Is always negative answer for you

Answer:

A.6.3

Explanation:

The average velocity of a man who runs forward at 8 m/s for 9 s and back again at 5 m/s for 3 s after an 8 s break is 7.25 m/s.

The average velocity of the man in this scenario can be found by dividing the total distance traveled by the total time spent moving.

The total distance traveled while running forward is 8 m/s * 9 s = 72 m, and the total distance traveled while running back is 5 m/s * 3 s = 15 m.

The total distance traveled is 72 m + 15 m = 87 m. The total time spent moving is 9 s + 3 s = 12 s.

Therefore, the average velocity is 87 m / 12 s = 7.25 m/s.

You can learn more about average velocity at

https://brainly.com/question/29483294

#SPJ4

Strong storms and hurricanes are the consequences of how the Earth is heated by the sun.

The upper troposphere becomes warmer as the lower stratosphere warms. When the troposphere and the planet's surface are at opposite temperatures, significant updrafts result, which intensifies storms and hurricanes. Updrafts and storm power are diminished during the height of the 11-year solar cycle.

Troposphere, stratosphere, mesosphere, and thermosphere are the layers of the atmosphere. The stratosphere, which contains the ozone layer, is the part of the Earth's atmosphere that is most affected by the sun. The stratosphere, which is where weather happens, is followed by the troposphere.

To know more about troposphere, refer:

https://brainly.com/question/27233032

#SPJ4

When the molecules of carbon dioxide is heated, it is disintegrated into molecules of carbon monoxide and oxygen atoms.

CO2 → CO + O

This is the basic reaction expected to happen by carbon dioxide molecules are heated. However it may also disintegrate into C2, O2, C, etc.

Since heat is absorbed in this reaction, it is an example of endothermic reaction. In an exothermic reaction heat is released. These are the basic two types of chemical reactions on basis of heat.

Therefore, when the molecules of carbon dioxide is heated, it is disintegrated into molecules of carbon monoxide and oxygen atoms.

To know more about endothermic reaction

https://brainly.com/question/23184814

#SPJ1

The horizontal velocity was constant, so:

\(s = vt\)

\(s = 10\cdot9\)

\(s = 90\)

it traveled 90meters

Explanation:

Domestic wiring is house wiring were phase/live wire,neutral wire,earth wire is used that functions in giving the electricity to our home except in case of neutral wire

The electric field strength needed to generate this force is roughly 1.5 x 106 N/C

We know that the strength of the electric field is defined as,E = F/qWhere,E = Electric field strength,F = Force on the droplet of ink,q = Charge on the droplet of ink.Therefore, putting the given values, we get: E = (3.2 × 10⁻4 ) / (2.1 ×10-4 ) = 1.5 × 10⁶ N/C.

Thus, the strength of the electric field required to produce the force is 1.5 ×10⁶ N/C (two significant figures). Therefore, the final answer is 1.5 × 10⁶ N/C.

To know more about electric field strength  click on below link :

https://brainly.com/question/28227168

#SPJ11

Answer:

direction should be the answer

Answer: C, supplements and drugs both undergo stringent government testing.

Explanation: took the unit test.

hope this helps :)

Answer:

C

Explanation:

The value of the magnitude of the induced emf is 98.74 V.

From the question, Magnetic field strength, B = 0.43T

Number of turns, N = 56

Radius, r = 16 cm

Time taken, t = 0.14s

Formula to calculate the induced emf, ε = -NdΦ/dt

Where,N = Number of turns

dΦ = Change in magnetic flux

dt = Change in time

1: Calculation of magnetic flux, Φ

Φ = B.A = B(πr²) [Area of the circular loop]

Φ = (0.43T)(π × 0.16m × 0.16m)

Φ = 0.03456 WbS

2: Calculation of induced emf, ε

ε = -NdΦ/dtε = -(56)(0.03456 Wb)/0.14s

ε = -13.824/0.14 V

ε = -98.74 V (negative sign indicates the direction of induced current)

Learn more about magnetic field at

https://brainly.com/question/15410971

#SPJ11

Answer:

168 Hz

Explanation:

The Doppler equation describes how sound frequency depends on relative velocities:

fr = fs (c + vr) / (c + vs),

where fr is the frequency heard by the receiver,

fs is the frequency emitted at the source,

c is the speed of sound,

vr is the velocity of the receiver,

and vs is the velocity of the source.

Note: vr is positive if the receiver is moving towards the source, negative if away.

Conversely, vs is positive if the receiver is moving away from the source, and negative if towards.

Given:

fs = 164 Hz

c = 343 m/s

vr = -15 m/s

vs = -23 m/s

fr = fs (c + vr) / (c + vs)

fr = 164 Hz (343 m/s − 15 m/s) / (343 m/s − 23 m/s)

fr = 168 Hz

Answer: false

Explanation:

CO2 decreases during the day because of photosynthesis. The plants absorb the carbon di oxide present in the air to generate oxygen. When CO2 increases, the lengths of the nights are much affected than day. The lengths of days are not much changed. Hence, False.

(a) The radial distance a projectile reaches, as a multiple of Earth's radius (RE), if its initial speed is one-fifth of the escape speed from Earth can be calculated as follows:

The escape speed from Earth can be given by the formula:

Ve = √(2GM/R)

Where:

Ve = Escape speed from Earth

G = Gravitational constant

M = Mass of Earth

R = Radius of Earth

Let's denote the initial speed of the projectile as Vp. According to the problem, Vp = (1/5)Ve.

The distance reached by the projectile can be determined using the equation for the motion of an object under constant acceleration:

d = Vp² / (2g)

Where:

d = Distance reached

Vp = Initial speed of the projectile

g = Acceleration due to gravity

The acceleration due to gravity at the surface of Earth is given by:

g = GM / R²

Substituting the values and rearranging the equations, we get:

d = (Vp² * R²) / (2GM)

To express the result as a multiple of Earth's radius (RE), we divide the distance reached (d) by the radius of Earth (R).

d/RE = [(Vp² * R²) / (2GM)] / R

Simplifying the expression, we have:

d/RE = Vp² / (2GM)

Substituting Vp = (1/5)Ve, we get:

d/RE = [(1/5)Ve]² / (2GM)

Now, let's substitute the values and calculate the result:

G ≈ 6.67430 × 10^(-11) m³/kg/s² (gravitational constant)

M ≈ 5.972 × 10^24 kg (mass of Earth)

R ≈ 6.371 × 10^6 m (radius of Earth)

Ve = √(2 * G * M / R)

= √(2 * 6.67430 × 10^(-11) * 5.972 × 10^24 / 6.371 × 10^6)

≈ 1.118 × 10^4 m/s

Vp = (1/5)Ve

= (1/5) * 1.118 × 10^4

≈ 2.236 × 10^3 m/s

d/RE = [(2.236 × 10^3)² / (2 * 6.67430 × 10^(-11) * 5.972 × 10^24)]

/ (6.371 × 10^6)

Calculating the result:

d/RE ≈ 0.063

Therefore, the radial distance the projectile reaches, as a multiple of Earth's radius (RE), is approximately 0.063.

(b) The radial distance a projectile reaches, as a multiple of Earth's radius (RE), if its initial kinetic energy is one-fifth of the kinetic energy required to escape Earth can be calculated as follows:

The kinetic energy required to escape Earth can be given by the formula:

KEe = (1/2)MVe²

Where:

KEe = Kinetic energy required to escape Earth

M = Mass of Earth

Ve = Escape speed from Earth

Let's denote the initial kinetic energy of the projectile as KEp. According to the problem, KEp = (1/5)KEe.

The kinetic energy of an object can be calculated using the formula:

KE = (1/2)MV²

Where:

KE = Kinetic energy

M = Mass of the object

V = Velocity of the object

The velocity of the projectile can be expressed as:

Vp = √(2KEp / M)

The distance reached by the projectile can be calculated using the equation for the motion of an object under constant acceleration:

d = Vp² / (2g)

To express the result as a multiple of Earth's radius (RE), we divide the distance reached (d) by the radius of Earth (R).

Substituting the values and calculating, we have:

Vp = √(2 * (1/5)KEe / M)

= √((2/5) * (1/2)MVe² / M)

= √((1/5)Ve²)

= (1/√5)Ve

d/RE = [(Vp)² / (2g)] / R

Substituting Vp = (1/√5)Ve, we get:

d/RE = [(1/√5)Ve]² / (2GM) / R

Now, let's substitute the values and calculate the result:

d/RE = [(1/√5) * 1.118 × 10^4]² / (2 * 6.67430 × 10^(-11) * 5.972 × 10^24) / (6.371 × 10^6)

Calculating the result:

d/RE ≈ 0.063

Therefore, the radial distance the projectile reaches, as a multiple of Earth's radius (RE), is approximately 0.063.

(c) The least initial mechanical energy required at launch for the projectile to escape Earth can be determined by considering the conservation of mechanical energy.

The total mechanical energy of an object is given by the sum of its kinetic energy and potential energy:

E = KE + PE

Where:

E = Mechanical energy

KE = Kinetic energy

PE = Potential energy

To escape Earth, the projectile's mechanical energy at launch should be zero, meaning its kinetic energy and potential energy should cancel each other out.

KE + PE = 0

KE = -PE

The kinetic energy can be expressed as:

KE = (1/2)MV²

The potential energy can be calculated using the formula for gravitational potential energy:

PE = -GMm/R

Where:

PE = Potential energy

G = Gravitational constant

M = Mass of Earth

m = Mass of the projectile

R = Radius of Earth

Substituting the expressions for KE and PE into the equation KE + PE = 0, we have:

(1/2)MV² - GMm/R = 0

Simplifying and rearranging the equation, we get:

V² = 2GM/R

V = √(2GM/R)

This equation gives us the escape speed from Earth, which we calculated earlier in part (a).

Therefore, the least initial mechanical energy required at launch for the projectile to escape Earth is zero, as the kinetic energy and potential energy cancel each other out.

(a) The radial distance the projectile reaches, as a multiple of Earth's radius (RE), is approximately 0.063.

(b) The radial distance the projectile reaches, as a multiple of Earth's radius (RE), is approximately 0.063.

(c) The least initial mechanical energy required at launch for the projectile to escape Earth is zero.

To know more about radial distance , visit;

https://brainly.com/question/31821734

#SPJ11

The force on a -50 μc charge in an electric field of 3000 n/c pointing due east is -150 N.

F=qE, where F is the force, q is the charge, and E is the electric field.

The electric field has a magnitude of 3000 n/c, which means there is a force of 3000 N acting in the direction of the electric field.

For the -50 μc charge, the force is equal to -50 μc multiplied by 3000 n/c, or -150 N. This force acts in the opposite direction of the electric field, meaning the -50 μc charge would experience a force of -150 N due east.

This is due to the fact that like charges repel each other. The electric field is providing a force to the charge, so the charge is repelling the electric field in order to maintain equilibrium.

The force on a -50 μc charge in an electric field of 3000 n/c pointing due east is -150 N.

This force acts in the opposite direction of the electric field, meaning the charge experiences a force of -150 N due east. This is due to the fact that like charges repel each other.

to know more about Force refer here:

https://brainly.com/question/13191643#

#SPJ11

Gravitational waves travel at the speed of light, so it would take approximately 10 years for the gravitational waves produced by the star's explosion to reach Earth.

Since the star is located 10 light-years away, it means that the light emitted by the explosion takes 10 years to travel from the star to Earth. Gravitational waves, like light, also travel at the speed of light in a vacuum.

Therefore, the gravitational waves produced by the star's explosion would also take approximately 10 years to propagate through space and reach Earth. This is because both light and gravitational waves travel at the same finite speed, and in this scenario, they would arrive at Earth at approximately the same time, 10 years after the star's explosion.

To know more about speed of light, click here.

https://brainly.com/question/29216893

#SPJ4

Answer:

Explanation:

See the attachment for the details.  A right triangle is formed to find the hypotenuse of the two legs consisting of the actual driving distances and times.  The hypotenuse gives the vector information for the displacement at the end of 8 hours of driving.  

The individual driving times and distances are summed to provide:

(a) How far did he travel?

103 km

(b) What was his average speed?

12.88 km/h

(c) What was his displacement?

73.82 km

(d) What was his average velocity?

9.228 km/h

Answer:

V = ((179 - 14) + (179 - (-23))) / 94 = 367 / 4 = 3.9 m/s

Question asks for total distance not net distance traveled

The wave's speed is 85 m/s if its wavelength is 5 meters and its frequency is 17 Hz.

A waveform signal that is propagated in space or down a wire does have a wavelength, that is the separation between two equal places (adjacent crests) in the consecutive cycles. This length is typically specified in wireless systems in metres (m), centimetres (cm), or millimeters (mm) (mm).

given data,

frequency of the wave v = 17 Hz

Wavelength of the wave = 5m

speed of the wave s = ?

Calculating the speed of wave

We know that,

Speed= frequency × wavelength

Thus,

s= 17 × 5 m/s

s= 85 m/s

To know more about wavelength visit :

https://brainly.com/question/2288272

#SPJ4

When food is kept in storage, it has chemical energy as potential. Chemical energy in food is transformed into fuel for our bodies when a person eats it.

Thermal energy, which keeps us warm, is the fuel for our bodies. \

When a human moves, the chemical energy is also transformed into motion. Kinetic energy is the movement.

Because food gives the human body the chemical energy it needs to carry out its daily tasks, the fitness magazine made the comparison between food and a battery in this instance.

The banana is a fruit that contains a lot of carbohydrates and fructose. Because of this, it is a great food to eat before exercise because it gives the muscles the chemical energy they need to perform better both before and after exercise.

The banana is also high in potassium, magnesium, phosphorus, and vitamins a and c, which gives it more strength and energy.

To learn more about chemical energy refer the link:

https://brainly.com/question/1397271

#SPJ9

Answer:

yes Robert's kinetic energy will be twice as much

if Robert runs twice as fast, then his KE will be 8 times Mary's KE

Explanation:

Kinetic energy KE = \(\frac{1}{2}\)m\(v^{2}\)

for Robert KE =  \(\frac{1}{2}\)(2m)\(v^{2}\) =  m\(v^{2}\)

for Mary KE = \(\frac{1}{2}\)m\(v^{2}\)

If you divide Robert KE by Mary KE = m\(v^{2}\) /  \(\frac{1}{2}\)m\(v^{2}\) = 2; yes Robert's kinetic energy will be twice as much

if Robert v is equal to 2v

for Robert KE =  \(\frac{1}{2}\)(2m)\((2v)^{2}\) =  4m\(v^{2}\)

for Mary KE = \(\frac{1}{2}\)m\(v^{2}\)

If you divide Robert new KE by Mary's KE = 4m\(v^{2}\) /  \(\frac{1}{2}\)m\(v^{2}\) = 8, if Robert runs twice as fast, then his KE will be 8 times Mary's KE

Roberto has twice the mass his sister Mary has (see above) but runs at the same velocity as Mary, then his kinetic energy would be twice that of Mary, and the kinetic energy of Roberto would be 8 times when he runs twice as fast Mary.

Mechanical energy is the combination of all the energy in motion represented by total kinetic energy and the total stored energy in the system which is represented by total potential energy.

The kinetic energy is the body depends on the mass as well as the speed of the object and is given by the mathematical expression as follows

K.E = 1/2 × m × v²

When Roberto runs at the same speed as his sister Mary but has twice Mary's mass (see above), Roberto's kinetic energy is twice Mary's, and it is eight times higher when Roberto runs twice as quickly as Mary.

To learn more about mechanical energy here, refer to the link given below ;

brainly.com/question/12319302

#SPJ2

Answer:

a = v^2 / R      centripetal acceleration

R = v^2 / a     a at the surface of earth is 9.8 m/s^2

R = (90 m/s)^2 / 9.8 m/s^2 = 827 m