1. What type of rocket is not associated with Werner von Braun? A. V - 1 B. V - 2 C. Saturn 5 D. Delta II

Answer: B

Longitudinal wave

Explanation:

Transverse waves have crests and troughs

Longitudinal waves have compressions and rarefactions. A compression is where the density of the wave medium is highest. While a rarefaction is where the density of the wave medium is lowest.

Since sound wave is a longitudinal wave. And longitudinal wave exists apart from sound, we can therefore conclude that it's a longitudinal wave in spring.

Answer

C. Combined wave

Explanation:

I just took it

Answer:

The wavelength of wave is 2.78 m.

Explanation:

Frequency of a wave is 90 Hz

Speed of a wave is 250 m/s

It is assume to find the wavelength of wave. The formula of speed is given by :

[tex]v=f\lambda\\\\\lambda=\dfrac{v}{f}\\\\\lambda=\dfrac{250}{90}\\\\\lambda=2.78\ m[/tex]

So, the wavelength of wave is 2.78 m.

Answer: A) Destructive Interference

Explanation: Wave Interference can be simply defined as a phenomenon that result into creating a higher amplitude, lower amplitude or thesame amplitude of wave as two or more waves superpose.

Destructive Interference is when two waves with opposite or different amplitude but equal frequency cancel the effect of each other out as they superpose.

The active noise cancelling headphones produces an inverted wave to cancel out the noises it picks from it's surrounding, this process is called Destructive Interference.

Answer:

Wavelength x Frequency

1. False, the relationship between mass and inertia is actually described by Newton's 1st law in which an object will remain still without the tendency to change unless a force is placed upon it.

2. True, Newton did determine a direct relationship between force and mass because the greater the mass, the more force is required.

3. True, any change in velocity is called acceleration, for example, there is deacceleration, zero acceleration, or normal acceleration.

4. True, the greater the force applied to an object, the greater it will accelerate but it also does depend on the mass of an object.

5. False, if the mass of an object is increased, then the given net force will not help it to accelerate.

6. False, a net force of 1N applied to a mass of 1kg does not result in acceleration of 0.5m/s^2 because the net force of a 0.5m/s^2 acceleration is 0.5N.

7. True, the weight of your body does equal mass times gravitational acceleration on earth which is 9.8m/s^2.

8. False, the weight of the 10kg object is heavier than the 5kg object resulting in a slower acceleration.

9. False, the real way to find acceleration is change in velocity over time taken.

10.  False, the acceleration of an object depends on the object's weight.

Answer:

Wavelength        

Explanation:

A wave can be defined in terms of its frequency, wavelength, amplitude etc.

The distance between two corresponding parts of a wave, for example from crest to crest or trough to trough is called its wavelength.

It is represented by [tex]\lambda[/tex].

The relation between frequency, speed of a wave and its wavelength is given by :

[tex]v=f\lambda[/tex]

So, the correct option is (4) "wavelength".

Answer:

The answer is D

Explanation:

Got it right on gizmo

From the given parent genotypes, the offspring D (ff EE)  mouse could not have been born to these parents. Hence, option D is correct.

A person's entire genetic makeup is known as their genotype.  Genotype can also refer to the genotypes or variations that a person carries in a certain gene or genetic region.  Ploidy, another term for the number of books of each chromosomal found in a species, is a factor that determines how many variants an individual should have in a given gene.

A person has two alleles for each gene in a polymorphic species like humans, since there are two complete sets of chromosomes in these organisms. It is said that a genotype is homozygous if both alleles are the same. Heterozygous genotypes are those when there are two or more distinct alleles.

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Answer:

The correct answer would be D. Main Sequence.

Explanation:

Answer:

The answer is B.

Explanation:

If 212 degrees Fahrenheit is 100 degrees Celsius, then 32 degrees Fahrenheit is 0 degrees Celsius.

Answer: B

Explanation:

Answer:

Base

Explanation:

Answer:  base

Explanation: the basic unit of a chemical element.

Answer:

13.46

Explanation:

formula is Wavelength x Frequency

Answer:

The value of current generated would increase.

Explanation:

Electromagnetic induction is the process by which an electromotive force is induced due to a variation of magnetic field.

The induced current is directly proportional to rate at which the coil cuts the magnetic field. Using more powerful battery in the experiment would increase the rate at the the coil cuts the magnetic field, therefore increasing the rate of variation in the magnetic field. This effect would cause a greater deflection on the galvanometer's scale, showing an increase in the current generated.

This experiment proves that an alternating current can be produced from magnetic field.

Final answer:

A more powerful battery in Faraday's experiments would have increased the induced electromotive force (EMF) causing the galvanometer to register a more significant deflection corresponding to the stronger magnetic field produced when the primary circuit was connected or disconnected.

Explanation:

Effect of a More Powerful Battery on Faraday's Experiment

British physicist Michael Faraday's experiments on electromagnetic induction were ground-breaking in showing the connection between electricity and magnetism. The use of a more powerful battery in Faraday's experiments would have affected the induced electromagnetic force (EMF) in the secondary coil. When Faraday connected his apparatus—comprising two coils, one known as the primary coil connected to a battery, the other referred to as the secondary coil connected to a galvanometer— he noticed an effect on the galvanometer only when the magnetic field was changing.

If a more powerful battery had been used, the current flowing through the primary coil would have been stronger. This would have created a more intense magnetic field. According to Faraday's law, the induced EMF in a circuit is proportional to the rate of change of magnetic flux. Therefore, with a stronger initial magnetic field, the rate of change of this field, and thus the induced EMF upon connecting and disconnecting the battery, would have been greater. The galvanometer would have registered a more significant deflection when Faraday either established or broke the circuit, corresponding to the moments of connection and disconnection of the battery.

Answer:[tex]32.77\ mi/hr[/tex]

Explanation:

Given

Initially Reading on the odometer is [tex]31,500\ miles[/tex]

Final reading on the odometer is [tex]31,713\ miles[/tex]

Time taken is [tex]t=6.5\ hr[/tex]

average velocity [tex]=\dfrac{\text{Displacement}}{\text{time}}[/tex]

[tex]v_{avg}=\dfrac{31713-31500}{6.5}[/tex]

[tex]v_{avg}=\dfrac{213}{6.5}[/tex]

[tex]v_{avg}=32.77\ mi/hr[/tex]

Thus the average velocity of mail truck is [tex]32.77\ mi/hr[/tex]

Answer:

C. Supervising the game to make sure teams are playing fairly

Answer:

The answer is C

Explanation:

Answer:

a. a 1,000-kg car

Explanation:

Q: F = ma

(a) F = 100n

    M = 1000vg

    A = ?

--> F = ma  

--> a = f/m

     a = 1000/1000                                                                                                                                        a= 1m/8*2                                                                                                                                           (b)   F = 1000N

      m = 2000 vg

       a = ?

--> F = ma

     a = f/m

     a = 1000/2000

     a = 0.5 m/8*2

a) The acceleration of the engine of the [tex]1000kg[/tex] mass of car is 1m/s².

b) The acceleration of the engine of the [tex]2000kg[/tex] mass of car is 0.5m/s².

Given the data in the question;

To determine the acceleration of each of the two cars,  we use Newton's Second Law of Motion:

[tex]F = m*a[/tex]

Where m is mass of the object and a is the acceleration.

For Car 1 { mass 1000kg}

[tex]1000N = 1000kg * a\\\\1000kgm/s^2 = 1000kg * a\\\\a = \frac{1000kgm/s^2}{1000kg}\\\\a = 1m/s^2[/tex]

Therefore, given the force exerted, the acceleration of the engine of a [tex]1000kg[/tex] mass of car is 1m/s².

For Car 2 { mass 2000 kg }

[tex]1000N = 2000kg * a\\\\1000kgm/s^2 = 2000kg * a\\\\a = \frac{1000kgm/s^2}{2000kg}\\\\a = 0.5m/s^2[/tex]

Therefore, given the force exerted, the acceleration of the engine of a [tex]2000kg[/tex] mass of car is 0.5m/s².

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Answer:

Explanation: Does the object move when it is released from rest?

Is the object part of a system?

Potential energy can be described as 3 characteristics that a specific object has:

The shape of an object,

The position of an object, and

Its readiness to transform into Kinetic energy.

She should ask the following to help her determine if an object has

potential energy

Does the object move when it is released from rest?

Is the object part of a system?

The student should ask if work was done to lift the object and if a force acts on it, as these help determine the potential energy.

To determine if an object has potential energy, the student should ask the following questions:

The questions regarding kinetic energy and movement upon release are less directly related to potential energy, as they address the object's kinetic energy status instead. The consideration of a system may be relevant depending on context, but identifying potential energy primarily focuses on the object's position and forces acting upon it.

Radiation is the process that does not require the presence of particles of matter because it has the ability to propagate without the presence of any medium.

Radiation refers to the light energy that comes from a source such as sun. This radiation travels through space at the speed of light that has a wave like properties.

So we can conclude that radiation is the process that does not require the presence of particles of matter because it has the ability to propagate without the presence of any medium.

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Answer:

The correct option is (b) i.e. 0.03 m.

Explanation:

We have,

Speed of a wave is 0.09 m/s and the frequency of a wave is 3 Hz.

It is required to find the wavelength of a wave.

The speed of a wave in terms of wavelength and frequency is given by :

[tex]v=f\lambda\\\\\lambda=\dfrac{v}{f}\\\\\lambda=\dfrac{0.09}{3} \\\\\lambda=0.03\ m[/tex]

So, the wavelength of a wave is 0.03 m.

Answer:

Hi there, so gamma-ray detection from tracers: Pet Scan, assess disease progression, tissue function: Nuclear Medicine Scan, a hybrid scan that involves nuclear medicine and x-ray imaging: PET/CT, and lastly radiation treatment near or within the tumor from implanted "seeds": Brachytherapy. Hope this helps <3.

Explanation:

btw you cute <3.

Answer:

Pet Scan

Nuclear Medicine

PET/CT

Brachytherapy

Answer:The kinetic energy of the water molecules decreases. ... The motion of the particles in the substance decreases, and the temperature of the substance increases.

Explanation:

Answer:

The molecules in the thermometer’s liquid spread apart.

Explanation:

Answer:160 g

Explanation:Start with the equation [tex]KE = 1/2mv^{2}.[/tex] This becomes [tex]m = 2KE/v^{2}[/tex]. Replace the variables with values and get (2*63)/28^2 = 160 g.

Final answer:

To find the mass of the puck, we use the kinetic energy formula: KE = ½mv². With the given kinetic energy of 63 Joules and velocity of 28 m/s, the calculation reveals that the mass of the puck is 0.1607 kg.

Explanation:

The student has asked a physics question relating to the concept of kinetic energy and its relation to mass and velocity. Kinetic energy (KE) is given by the equation KE = ½mv² where m represents mass and v represents velocity. Given kinetic energy is 63 Joules and velocity is 28 m/s, we will solve for mass (m).

Step 1: Write down the kinetic energy formula: KE = ½mv²

Step 2: Plug in the values: 63 J = ½m(28 m/s)²

Step 3: Simplify and solve for m:
63 J = ½m(784 m²/s²)
63 J = 392m (Joules)
m = 63 J / 392 (J/kg)
m = 0.1607 kg

The mass of the puck is 0.1607 kilograms.

The acceleration of the airplane increasing its speed from 200 km/h to 300 km/h over 2 hours is 0.00386 m/s².

To calculate the acceleration of an airplane which increases its speed from 200 km/h to 300 km/h over a period of 2 hours, you need to use the formula for acceleration, which is the change in velocity Δv divided by the time interval Δt. In this case, the change in velocity is 300 km/h - 200 km/h = 100 km/h.

However, since acceleration is typically expressed in m/s², we should first convert the speeds from km/h to m/s. Doing so, we get approximately 55.56 m/s - 27.78 m/s = 27.78 m/s as the change in velocity.

Given the time interval is 2 hours, it should also be converted to seconds, resulting in 2 hours × 3600 seconds/hour = 7200 seconds.

The acceleration can now be calculated as:

Δv = 27.78 m/s
Δt = 7200 s
Acceleration (a) = Δv / Δt = 27.78 m/s / 7200 s = 0.00386 m/s²

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Answer:

waxing gibbous moon so in this case gibbous

Explanation:

Answer:

The nail has become a temporary magnet, while the bar magnet remains a permanent magnet.

Explanation:

Answer:

B, The nail becomes a temp. magnet while the bar magnet remains a permanent magnet

Explanation:

Did it on edgen just now

Answer:

About 133 db.

Explanation:

Sound Intensity Level in db (SIL db) is equal to 10log (base 10) times the ratio of the sound intensity at 200 watts (I) relative to the sound intensity of  the reference sound intensity (I sub 0), which by default is equal to 10⁻¹² W/m² or 0 dB.

I = 200 w / 10 m^2 = 20 w per square meter  

I sub 0 = 10^-12 w per square meter

SIL = 10log ( I / I sub o) = 20 / 10^-12 = 10log ( 20^12) = 10 ( 13.3 ) = 133 db

Hope I typed this part correctly. Hard to get it in without being able to do exponents, etc. :D

The image of an object placed 2.0 meters in front of a plane mirror appears 2.0 meters behind the mirror, consistent with the Law of Reflection.

For plane mirrors, the Law of Reflection states that the angle of incidence is equal to the angle of reflection. This principle tells us that the image of an object will appear behind the mirror at the same distance as the object is in front of it. So if an object is placed 2.0 meters in front of a plane mirror, the reflected rays will appear to converge, and the image will seem to be 2.0 meters behind the mirror. Ray 1, traveling normal to the mirror, reflects back on itself, while Ray 2, traveling at a 5° angle, also reflects at a 5° angle on the other side of the normal. Thus, both rays will appear to originate from a point that is the same distance from the mirror as the object, creating a virtual image that is 2.0 meters behind the mirror.

Answer:

5 L

Explanation:

Ideal gas law:

PV = nRT

If P, n, and R are constant, then:

n₁R/P₁ = n₂R/P₂

Using ideal gas law, we can rewrite this as:

V₁/T₁ = V₂/T₂

This is known as Charles' law.

Plugging in values:

10 L / 546 K = V / 273 K

V = 5 L

Answer: 4.51 L

Explanation:

Answer/Explanation:

Mercury

1) What is the orbit of the Mercury?

The shape of the orbit is oval

2) Is the Sun at the center of the Earth’s orbit?

No

3) Describe the motion of the Earth throughout its orbit?

Starts fast then gets slower then begins to speed up again

4) Does it move at constant speed?

No

Earth

1) What is the orbit of the Earth?

The shape of the orbit is circular

2) Is the Sun at the center of the Earth’s orbit?

Yes

3) Describe the motion of the Earth throughout its orbit?

Travels at a steady consistent speed.

4) Does it move at constant speed?

Yes

Mars

1) What is the orbit of the Mars?

The shape of the orbit is circular

2) Is the Sun at the center of the Earth’s orbit?

Yes

3) Describe the motion of the Earth throughout its orbit?

Travels at a steady consistent speed.

​4) Does it move at constant speed?

Yes

Saturn

1) What is the orbit of the Saturn?

The shape of the orbit is circular

2) Is the Sun at the center of the Earth’s orbit?

Yes

3) Describe the motion of the Earth throughout its orbit?

Travels at a steady consistent speed.

​4) Does it move at constant speed?

Yes

Neptune

1) What is the orbit of the Neptune?

The shape of the orbit is circular

2) Is the Sun at the center of the Earth’s orbit?

Yes

3) Describe the motion of the Earth throughout its orbit?

Travels at a steady consistent speed.

4) Does it move at constant speed?

Yes

Comet

1) What is the orbit of the Comet?

The shape of the orbit is oval

2) Is the Sun at the center of the Earth’s orbit?

No

3) Describe the motion of the Earth throughout its orbit?

starts slow and gets faster and faster

4) Does it move at constant speed?

No

The orbits of Mercury, Earth, Mars, Saturn, Neptune, and comets around the Sun are elliptical, with the Sun at one of the two foci. Their motion is not at a constant speed but is faster when they are closer to the Sun in accordance with Kepler's laws of planetary motion.

The orbits of the planets and comet in our solar system, including Mercury, Earth, Mars, Saturn, Neptune, and comets are all elliptical, not circular. This is according to Kepler's First Law of Planetary Motion. The Sun is not at the center of these orbits but at one of the two foci of the ellipse.

The motion they follow around the Sun, known as orbital motion, is not at a constant speed. This is according to Kepler's Second Law, which states that a line joining a planet and the Sun sweeps out equal areas in equal intervals of time. This means when the planet is closer to the Sun in its orbit, it moves faster. And when it's farther from the Sun, it moves slower.

The same applies to a comet. A comet's orbit can be highly elliptical, and it moves fastest when it is closest to the Sun (the perihelion).

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