The air track reduces friction between the glider and the track to zero
the glider was released from rest and moved along the track . the mass holder hit the ground before the card pressed through the second light gate . which two statements describe the effect this would have in the glider

Answer:

a)  True    b)  True

Explanation:

a) a capacitor is made up of two flat plates and each one has a charge of the same sign, therefore the statement is true

b) the current is the flow of electrons per unit of time, therefore the charge is not zero, therefore the statement is True

Answer:

0

Explanation:

she runs 2 whole laps around a 400 meter track, but she is always ending up back where she started, therefor there is no displacement.

The required thermal radiation emitted by the Sun is calculated to be 16 times greater than the radiation.

We know that the energy emitted from the thermal radiation is is proportional to temperature raised to the power 4.

Thermal radiation ∝ T⁴

where,

T is temperature

The energy of the hot sun can be written as σ Thot⁴ = σ(12000)⁴

The energy of the cold sun can be written as σ Tcold⁴ = σ(6000)⁴

The ratio of both the energies is calculated to be,

⇒ σ(12000)⁴/σ(6000)⁴ = 16

Thus, the required energy output of the Sun is 16 times greater.

To know more about radiation:

https://brainly.com/question/22407523

#SPJ4

Answer:

4.2 km West of the start

Explanation:

Displacement is a vector quatitiy which means it has direction adn magnitude. It is the distance you are at the very end of the journey from the start.

We can assign one way as a positive direction and the other a negative and then add them

I will say that West is positive and East is negative:

(10.9) + (-6.7) = 4.2km

Answer:

B. During the fall

Explanation:

There are 2 types of energies going into play when dropping something, potential energy and kinetic energy. potential energy is the height of the object before it is dropped. The ball has the most kinetic energy right before it hits the ground, then releases it when it does hit the ground.

Answer:

Density = Mass/Volume => Volume = Mass/Density = 12/3.1 = 3.87ml

Explanation:

Answer:

3.9 mL

Explanation:

To find the volume of an object using its mass and density, we can use the following formula:

Volume = Mass/Density

Volume = 12/3.1

Volume ≈ 3.9

Therefore, the volume of the object is 3.9 mL.

I hope this helps!

Answer:

initially- with positive potential differences - the current is directly proportional to the p.d. However, as the current through the filament increases, the heating effect caused in the lamp also increases and so the temperature of the filament rises. This increase in the filament's temperature also increases the resistance of the filament. As a result the rate of increase of the current decreases and a greater change in the potential difference is required to cause a change in the current. This can be seen on the curve as the gradient becomes more shallow (greater resistance). This same pattern is repeated when a negative potential difference is applied across the filament

We can use the formula for the velocity of an object in free-fall to find the velocity of the object after 4 seconds the velocity of the object after 4.0 seconds is -41.2 m/s.

In the context of physics, "downward" usually refers to the direction of gravity, which is toward the center of the Earth. So, if an object is moving "downward," it means that it is moving in the direction of gravity, or toward the ground. In the case of an object that is thrown or dropped, "downward" would typically mean that the object is moving from a higher altitude to a lower altitude, under the influence of gravity.

Altitude is the vertical distance above a reference point or surface, usually measured in units of length such as feet or meters. Altitude is often used to describe the height of objects or locations above sea level, which is the standard reference point for altitude measurement

To know more about downward visit :

https://brainly.com/question/29096347

#SPJ1

If you are floating in the solar system at equal distances between Mars which has a small and Jupiter which has a larger mass than Jupiter, the planet has the largest gravitational pull. So the planet which has a larger mass will have a more gravitational pull.

The gravitationally bound system known as the Solar System is made up of the Sun and the asteroids that orbit it. It formed 4.6 billion years ago when a large interstellar molecular cloud gravitationally collapsed. Jupiter holds the lion's share of the system's remaining mass, with the Sun owning the vast majority of it.

Because Jupiter is the largest planet in our solar system, it has the strongest gravity. On Jupiter, you would weigh 2.5 times more than you would on Earth. Everything is drawn to the surface of the planet by the fundamental force of gravity.

To get more information about Solar System :

https://brainly.com/question/12075871

#SPJ5

Answer:

1200

Explanation:

Answer:

It depends on 2 factors

the nature of the materials

the normal force.

Explanation:

It depends on 2 factors

the nature of the materials that are in friction and the treatment that they have followed. This factor is expressed by a numerical value called the coefficient of friction or friction.

the force exerted by one body on the other, that is, the normal force.

Answer:

people separate mixtures in order to ger a specific substance that they need. 2. the other thing people separate mixtures to remove the unrequired components. 3.To get a pure substance

Explanation:

hope this helps probably don't because you asked this a week ago but have a good day :) ❤

Answer:

water vapor is a type of gas

Explanation:

all gas are in air state of form

hope this helps

Answer:

chemical potential energy

Explanation:

When the sun's radiant energy falls on Earth's oceans, it causes water to change state by evaporating. The form of energy water vapor have is chemical potential energy. when heat energy of sun falls on water surface, its state change from liquid to gas. This gas rises above in the form of water vapor. Its a chemical change. If this vapor get condense/ cool, it will turn into liquid again. We can say that vapor has potential to transform into water again. Thus, the energy stored in water vapor is called chemical potential energy.

The statement that is false in this situation is that the fact that the bands are multicolored indicates that the film has non-uniform thickness. In reality,

the multicolored bands on the surface of the gasoline are a result of thin-film interference, which occurs when light waves reflect off the top and bottom surfaces of a thin film.

The thickness of the film affects the way the light waves interfere with each other, leading to the appearance of colored bands. However, the colors do not indicate non-uniform thickness,

but rather the thickness of the film at each point on the surface. The other statements are all true. The wavelength that is important for thin-film interference is the wavelength within the film,

which is determined by multiplying the index of refraction and the vacuum wavelength. When light travels through a material with a smaller refractive index toward a material with a larger refractive index,

reflection at the boundary occurs along with a phase change that is equivalent to one-half of a wavelength in the film. When light travels from a larger toward a smaller refractive index,

there is no phase change upon reflection at the boundary.

To know more about non-uniform refer here

brainly.com/question/13079447#

#SPJ11

Answer:thanks

Explanation:xixo

gv

The dimension of concentration is shared by the equivalent formulas for equilibrium constants in thermodynamic and kinetic systems, although K, the thermodynamic equilibrium constant, is always dimensionless.

To learn more about equilibrium constants refer to:

https://brainly.com/question/19340344

#SPJ4

Answer: 4 feet.

Explanation:

A mirror reflects the image from the light it receives. I think it's useful to think of the surface of the mirror as a "portal." The distance between you and the mirror is 2 feet. So then your image also sits 2 feet behind the "portal" (the surface of the mirror). The general relationship can be described by 2d, where d is the distance between the object of interest and the mirror. This means if you were standing 4 feet away from the mirror, your image would seem to be 8 feet away.

The resistance of the load is approximately 9.376 Ω, while the inductance is approximately 0.0532 H.

Given:

P = 1100W

S = 2600VA

V = 240V

f = 60Hz

Power factor,\(\cos \phi\), is given by;

\(\cos \phi=\frac{P}{S}=\frac{1100}{2600}=0.423\)

And real power is given by \(P=VI \cos \phi\)

\(1100=I \times 240 \times 0.423\\I= 10.835A\)

Now impedance \(Z=\frac{V}{I} =\frac{240}{10.835}=22.15 \Omega\)

And \(\cos \phi=\frac{R}{Z}\\So, 0.423=\frac{R}{22.15} \\R=9.37 \Omega\)

Impedance is given by \(Z=\sqrt{R^2+X_L^2}\)

\(22.15=\sqrt{9.37^2+X_L^2}\)

Squaring both sides,

\(490.62=87.79+X_L^2\\X_L=20.07 \Omega\)

\(X_L=2 \pi fL\)

\(20.07=2\pi 60 L\)

\(L=0.0532 H\)

Therefore, the resistance and inductance of the load are  9.376 Ω and 0.0532 H respectively.

Learn more about inductance here: brainly.com/question/29981117

#SPJ11

Correct Question

A 60-Hz 240-V-rms source supplies power to a load consisting of a resistance in series with an inductance. The real power is 1100W, and the apparent power is 2600 VA. Determine the value of the resistance and the value of the inductance.

The term you're looking for is "primary sensory cortex." The primary sensory cortex receives most of its input from the thalamic relay nuclei of a given sensory system.

The primary sensory cortex, often referred to as the primary somatosensory cortex or primary visual/auditory cortex, is a portion of the brain that collects and interprets sensory data from numerous body regions. For somatosensory processing, it is situated in the parietal lobe, for visual processing in the occipital lobe, and for auditory processing in the temporal lobe. The perception and interpretation of sensory stimuli like touch, pressure, pain, visual input, and aural signals are fundamentally influenced by the primary sensory cortex. It is in charge of encoding and organising sensory data, which enables us to experience and comprehend the outside world.

Learn more about cortex here:

https://brainly.com/question/30037473

#SPJ11

Answer:

It's a pretty simple suvat linear projectile motion question, using the following equation and plugging in your values it's a pretty trivial calculation.

V^2=U^2+2*a*x

V=0 (as it is at max height)

U=30ms^-1 (initial speed)

a=-g /-9.8ms^-2 (as it is moving against gravity)

x is the variable you want to calculate (height)

0=30^2+2*(-9.8)*x

x=-30^2/2*-9.8

x=45.92m

Answer:

35

Explanation:

dfddffffffffffffdddfr

Answer:

1. 60 kg m/s

2. 2.4 kg

3. none they both have same momentum

The temperature (in Kelvin) at which the diffusion coefficient for the diffusion of species A in metal B have a value of 5.68 × 10⁻¹⁶ m²/s is 1121 K.

Diffusion coefficient, species A, metal B, temperature, Kelvin, D0, Qd, and value of 5.68 × 10⁻¹⁶ m2/s.

Given that the values of D0 and Qd are 5.4 × 10-6 m2/s and 219 kJ/mol, respectively, the formula to calculate the temperature (in Kelvin) will be as follows;

D = D0exp(-Qd/RT)

Where;

D = Diffusion Coefficient = 5.68 × 10⁻¹⁶ m²/s

D₀ = Pre-exponential factor = 5.4 × 10⁻⁶ m²/s

Qd = Activation energy = 219 kJ/mol

R = Gas constant = 8.31 J/mol

KTo get the temperature in Kelvin, we can use this formula by substituting the values,

D = D₀exp(-Qd/RT)5.68 × 10-16 m²/s = 5.4 × 10⁻⁶ m²/s × exp (-219 × 10³ J/mol)/(8.31 J/mol K × T)

Simplifying the equation, exp (-Qd/RT) = 1.1111 × 10⁻⁷

Taking natural logarithms on both sides, -Qd/RT = ln (1.1111 × 10⁻⁷)

Qd/RT = -ln (1.1111 × 10⁻⁷)

Substituting the values, 219 kJ/mol/ (8.31 J/mol K × T) = -ln (1.1111 × 10⁻⁷)

Solving for T, T = 1121 K (approx)

Learn more about diffusion coefficient at

https://brainly.com/question/13256293

#SPJ11

The weight of the block is calculated to be 6.86 N.

The density is directly proportional to the weight  of the object, provided   volume of the object remains constant. Density can be measured using  formula; D = M/V, where, M is the mass and V is the volume.

The weight t is defined as the force of gravity on the object and is evaluated as the mass times the acceleration of gravity; w = mg.

Given: density of the wood = 700 kg m3

volume of cube = a^3

given, a= 10cm

= 0.1 m

= 0.1^3= 0.001 m

density = mass/volume

mass= 700 * 0.001

=  0.7 kg

W= m*g

Weight = 0.7 *9.8

Weight = 6.86 N

To know more about density, refer

https://brainly.com/question/1354972

#SPJ4

Answer:

All you need is golfing equipment make a small hole in the ground and have like something to cover the sun off of you and boom you got a golfing spot and a golf club no skills needed. Oh and you need a small flag for your gold hole but then your good and you can have fun

Explanation:

Answer:

\(\huge\boxed{\sf F= 350 \ N}\)

Explanation:

Considering pivot as the central point,

Key:

\(F_1r_1=F_2r_2\)

Here,

Substitute the givens in the above formula.

\(F(1.2)=600(0.7)\\\\F(1.2)=420\\\\Divide \ 1.2 \ to \ both \ sides\\\\F=420/1.2\\\\F= 350 \ N\\\\\rule[225]{225}{2}\)

Answer:

The three agents of sediment transport, which result in deposition as energy decreases, are ice, wind, and water.

A parallel circuit is described as a type of circuit in which there are several current paths.

A parallel circuit is a type of electrical circuit where two or more components are connected in parallel, and each component has its path for electric current flow. The path is separate from all other parts, and each has the same voltage level. The current divides among each path according to the resistance value of the components in the circuit. Parallel circuits are used in various applications, including lighting in households, street lights, and other electronic devices. In a parallel circuit, the voltage across each component is the same, and the total current in the circuit is equal to the sum of the current flowing in each branch.

A parallel circuit is used in the household and other applications to prevent other electrical devices from overloading and cutting off electrical supply, for example, when several devices are plugged into a power source. In a parallel circuit, the voltage divider circuit can be used to divide the voltage among resistors. This is because the voltage across each component in a parallel circuit is the same, and we can use the equation V = IR to calculate the voltage divider.

for such more questions on circuit

https://brainly.com/question/2969220

#SPJ8

Considering the definition of impulse, the impulse of the force is 11.06 N×s.

Impulse is a term that quantifies the overall effect of a force acting over time.

In other words, the mechanical impulse of a force relates said force to the duration of its action. It is a vectorial magnitude that has the direction and sense of the force that produces it.  

The impulse I is the product between a force and the time during which it is applied:

I= force× time

The unit of the impulse is the N×s (newton per second).

In this case, you know:

Replacing in the definition of impulse:

I= 1400 N× 0.0079 s

Solving:

I= 11.06 N×s

The impulse of the force is 11.06 N×s.

Learn more about impulse:

https://brainly.com/question/13333793?referrer=searchResults

Answer:

Count the number of hydrogen and oxygen atoms on each side of the arrow.

Explanation: