when you stand in front of a convex mirror, the image you see is a. real and upright. b. real and inverted. c. virtual and inverted. d. real and inverted if your distance from the mirror is greater than two focal lengths. e. virtual and upright.

Be sure to follow proper safety precautions when working with a light source, and handle the flat surface (new medium) carefully to avoid any damage or injuries.

What is Reflection?

Reflection is a phenomenon that occurs when a wave, such as light or sound, strikes a surface and bounces back, either returning to the same medium or entering a new medium. It involves the change in direction of a wave as it encounters a surface, resulting in the wave bouncing off the surface and changing its direction.

A light source (e.g., a flashlight or a laser pointer)

A flat surface to act as the new medium (e.g., a piece of glass or a mirror)

A protractor or an angle-measuring tool

A ruler or a measuring tape

Learn more about Reflection from the given link

https://brainly.com/question/29139385

#SPJ1

The angle of incidence and angle of reflection are equal, according to the law of reflection.

Define angle of incidence and angle of reflection.

The angle between this normal and the incident beam is known as the angle of incidence, and the angle between this normal and the reflected ray is known as the angle of reflection. The angle of incidence and angle of reflection are equal, according to the law of reflection.

According to the Law of Reflection, the angle of incidence and the angle of reflection, as measured from the normal to the surface, are equal. Curved surfaces are irrelevant since the angles are calculated from the normal, which is perpendicular to the surface. This is the foundation for curved mirrors like concave and convex ones.

To learn more about law of reflection use:

https://brainly.com/question/31389010

#SPJ1

The minimum value of the transmission signal bandwidth in the case of a multi-level PAM signal with 64 levels, using a symbol waveform of a square pulse, is 8 kHz. The symbol rate is also 8 kHz.

In a multi-level PAM (Pulse Amplitude Modulation) signal, the number of levels determines the number of distinct amplitudes that can be transmitted. In this case, there are 64 levels.

To determine the minimum value of the transmission signal bandwidth, we need to consider the Nyquist criterion. According to the Nyquist theorem, the minimum bandwidth required for a signal is twice the highest frequency component of the signal. Here, the highest frequency component of the voice signal is 3.4 kHz.

Since the voice signal is sampled at a frequency of 8 kHz, the Nyquist criterion tells us that the minimum bandwidth required for transmission is 2 * 3.4 kHz = 6.8 kHz. However, in practice, it is common to choose a slightly higher value to account for the practical implementation considerations. Therefore, the minimum value of the transmission signal bandwidth is rounded up to 8 kHz.

The symbol rate is the number of symbols transmitted per second. In this case, since the voice signal is sampled at 8 kHz, the symbol rate is also 8 kHz.

Moving on to the second part of the question, when transmitting the PAM signal into binary data using PCM (Pulse Code Modulation) encoding, we need to consider the bandwidth and bit rate.

To determine the bandwidth of the transmission signal when using PCM encoding with a square wave pulse, we need to apply the Nyquist criterion again. The Nyquist criterion states that the bandwidth is equal to the highest frequency component of the signal. In PCM encoding, the highest frequency component is half the sampling rate, which is 4 kHz (8 kHz / 2).

Therefore, the bandwidth of the transmission signal when using PCM encoding with a square wave pulse is 4 kHz.

The bit rate is the number of bits transmitted per second. In PCM encoding, each sample of the PAM signal is quantized and represented using a fixed number of bits. Since the symbol rate is 8 kHz and each symbol is represented by 6 bits (64 levels), the bit rate is calculated as 8 kHz * 6 bits = 48 kbps.

In summary, the bandwidth of the transmission signal when using a multi-level PAM signal with 64 levels and a square wave pulse is 8 kHz, with a symbol rate of 8 kHz. When using PCM encoding with a square wave pulse, the bandwidth of the transmission signal is 4 kHz, with a bit rate of 48 kbps.

To know more about bandwidth click here:

https://brainly.com/question/33215021

#SPJ11

The height of the 500-mb pressure level plotted at North Platte (LBF) in western Nebraska was 5,570 meters  m above sea level.

Pressure is the force applied perpendicular to the surface of an object per unit area over which that force is distributed.

Recalling that the heights plotted at individual stations on 500-mb maps are in tens of meters (place a 0 to the right of the three plotted digits).

The coded height at North Platte, in west-central Nebraska, ("557") indicated 500 mb occurred at 5,570 meters above sea level.

Thus, The height of the 500-mb pressure level plotted at North Platte (LBF) in western Nebraska was 5,570 meters  m above sea level.

Learn more about pressure here: https://brainly.com/question/25736513

#SPJ1

The amount of the charge is equal to 0.308 C.

In Mathematics and Physics, the amount of potential energy that is stored with respect to a charge can be calculated by using this formula:

PE = qV

Where:

By making charge (q) the subject of formula, we have the following:

Charge, q = PE/V

By substituting the given parameters into the charge formula, we have;

Charge, q = 2.77/9.00

Charge, q = 0.308 C.

Read more on charges here: https://brainly.com/question/31312861

#SPJ4

Complete Question:

A charge gains 2.77 J of energy when it moves between the terminals of a battery with a potential difference of 9.00 V What is the amount of the charge? (Unit = C)

The correct answer is d.

It increases because angular momentum is conserved and the moment of inertia increases. When you move out to the edge of a merry-go-round, the moment of inertia of the system increases and the rotational rate of the system increases as well.

In physics, momentum is a vector quantity that can be expressed as the product of an object's mass and its velocity. Therefore, mass and speed are the main factors that affect the magnitude of a force of motion on an object.

Learn More About Momentum at https://brainly.com/question/1042017

#SPJ11

Answer:

Option two

Explanation:

im smort

Answer:

I think it's B. there is a cold air mass pushing warm air mass up and replacing it over San Francisco

Answer:

0.003292

Explanation:

Based on the given informations, the orbital period of the outer edges of the primordial disk was calculated to be approximately 1515 years.

Assuming that the mass of Neptune is 17 times that of the Earth and that the distance of Neptune from the Sun is about 30 astronomical units (AU), we can use Kepler's third law of planetary motion to solve for the period of the outer edges of the primordial disk.

Using the equation P² = (4π²/GM) x a³, where P is the period, G is the gravitational constant, M is the mass of the Sun, and a is the semi-major axis of the orbit, we can rearrange the equation to solve for P:

P = sqrt((4π²/GM) x a³)

Since the matter that made up the planetesimals was spread out evenly on the edges of the primordial disk, we can assume that the semi-major axis of their orbit was about 35.5 AU (the radius of the disk).

Plugging in the values, we get:

P = sqrt((4π²/6.6743 x 10⁻¹¹ x 1.9885 x 10³⁰) x (35.5 x 1.496 x 10¹¹)³)

P = 1515 years (approx.)

Therefore, the orbital period of the outer edges of the primordial disk was approximately 1515 years.

Learn more about Kepler's Law of planetary motion :

https://brainly.com/question/4978861

#SPJ4

Answer:

I believe that it is the 1st one

Knowing that an 8-mm-diameter hole has been drilled through each of the shafts AB,BC, and CD, Without specific details about the applied load, material properties, and shaft geometry, it is not possible to provide a conclusive answer regarding

To determine the shaft in which the maximum shearing stress occurs and the magnitude of that stress, we need additional information such as the applied load, material properties, and geometry of the shafts. Without these details, it is not possible to provide a specific answer. However, I can provide a general explanation of the concept. In general, the shearing stress in a shaft is related to the applied torque and the shaft's geometry. The shearing stress can be calculated using the formula:

τ = T * r / J

where τ is the shearing stress, T is the applied torque, r is the radius of the shaft, and J is the polar moment of inertia of the shaft.

The polar moment of inertia (J) depends on the shape and dimensions of the shaft. In the case of a solid circular shaft, J is equal to (π/32) * d^4, where d is the diameter of the shaft.

To determine the maximum shearing stress, we would need to compare the values of τ in each shaft by considering the applied torques and the shaft dimensions. The shaft with the highest shearing stress would have the maximum value.

Without specific details about the applied load, material properties, and shaft geometry, it is not possible to provide a conclusive answer regarding the shaft in which the maximum shearing stress occurs or the magnitude of that stress.

Learn more about shearing stress here:

https://brainly.com/question/20630976

#SPJ11

Claire likely has a combination of potential energy, which is stored energy, and kinetic energy, which is energy in motion.

The energy a body has as a result of its motion is known as kinetic energy. It is the energy required to move an object from one place to another. It is the energy of motion and is often referred to as being “in motion”. Kinetic energy is proportional to the mass of an object and the square of its velocity. Kinetic energy is often used in physics to describe the energy of objects moving in a given direction.

Her potential energy is due to the fact that she is standing at the edge of the pool, while her kinetic energy is due to the fact that she is ready to run into the diving board.

To learn more about kinetic energy
https://brainly.com/question/25959744
#SPJ4

Answer:

c

Explanation:

Answer: For example you can tell that metal are metal because of their luster (shine) and their hardness. There are other ways to classify objects by physical properties

- Chilio

your on here to lol we must be hella failing g

By Newton's second law, the car slows down with an average acceleration a such that

-7100 N = (1500 kg) a   ⇒   a ≈ -4.7 m/s²

If we treat the car as accelerating uniformly with this magnitude, then the car slides a distance ∆x such that

0² - (25 m/s)² = 2a ∆x   ⇒   ∆x ≈ 66 m

The car slide before it comes to rest will be 66 m. Newton's second equation of motion is applied in this problem.

Force is defined as the push or pull applied to the body. Sometimes it is used to change the shape, size, and direction of the body.

Force is defined as the product of mass and acceleration. Its unit is Newton.

The acceleration is found as;

F=ma

-7100 N = (1500 kg) a

a= -4.7 m/s²

If we assume that the automobile accelerates uniformly with this magnitude, the car slides x distance. From the Newton's second equation of motion;

v²=u²+2as

v²-u²=2as

0² - (25 m/s)² =2×(-4.7) s  

s=66 m

Hence,the car slide before it comes to rest will be 66 m.

To learn more about the force, refer to the link;

https://brainly.com/question/26115859

#SPJ2

A 20.0 kg cannonball is fired from a cannon with a muzzle speed of 100 m/s at an angle of 20.0°. Using conservation of energy, the maximum height reached by the cannonball is approximately 510.2 meters.

A cannon ball weighing 20.0 kg is launched from a cannon with an initial velocity of 100 m/s at an angle of 20.0° above the horizontal.

To determine the maximum height reached by the cannonball using the conservation of energy principle, we consider the conversion of kinetic energy into gravitational potential energy.

Initially, the cannonball has only kinetic energy, given by the equation KE = (1/2)mv², where m is the mass and v is the velocity.

At the highest point of its trajectory, the cannonball has no vertical velocity, meaning it has no kinetic energy but possesses gravitational potential energy, given by the equation PE = mgh, where h is the height and g is the acceleration due to gravity (approximately 9.8 m/s²).

Using the conservation of energy, we equate the initial kinetic energy to the maximum potential energy:

(1/2)mv² = mgh

Canceling the mass and rearranging the equation, we find:

v²/2g = h

Plugging in the given values, we have:

(100²)/(2*9.8) = h

Simplifying the equation, we find:

h ≈ 510.2 m

Therefore, the maximum height reached by the cannonball is approximately 510.2 meters.

To know more about maximum height refer here:

https://brainly.com/question/30878848#

#SPJ11

Answer:

I believe the answer is B. Reducing the angle of the ramp. ( sorry if wrong:)

Answer:

Too what i know its because of the air

Explanation:

The steel rod is more dense and doesnt have air whil'st the oil tanker is less dense with lots of air

Answer:

here given is a weight

then force becomes mg

that is F=Mg

=4*9.8

then by using the formula

F=Ma

a=F/M

=4*9.8/9.8

=4

Explanation:

Using newtons second law

\(\\ \bull\sf\dashrightarrow Force=Mass\times Acceleration\)

\(\\ \bull\sf\dashrightarrow Acceleration=\dfrac{Force}{Mass}\)

\(\\ \bull\sf\dashrightarrow Acceleration=\dfrac{9.8}{4}\(

\(\\ \bull\sf\dashrightarrow Acceleration=2.45m/s^2\)

The push magnitude and the tension of the cord is 5.4 × 10^-4

What is cord ?

cord is the slender flexible material usually consisting of several stands or twisted together.

It is wired coverd in rubber or plastic which connects electrical equipment to an electricity supply.

The free body diagram as per the question with the tension of string T .

The force of gravity ~mg

The force of air ~f

Since the sphere is motionless the net force on it is 0.

And the x and y are the components of the equation are zero

Tsin + 0 = F

Tcos - mg= 0

Where ¥ = 32°

Thus we get

T= (3.9×10^-4 kg ) (9.8m/s^2)/cos32°

= 2.1×3.2×10^-4

Solving T

We can get the F =

(3.2×10^-4)sin 32° =

5.4 ×10^-4

To know more about cord click

https://brainly.com/question/1338130

#SPJ9

To find the total magnetic field, you would need to integrate dB over the entire length of the unshielded section of the wire.

Here's the step-by-step explanation:
1. The Biot-Savart law relates the differential magnetic field dB to the current I, the distance from the wire to the point P (r), and the angle between the current and the position vector (θ). The equation is:
dB = (μ₀ * I * dl * sinθ) / (4π * r²)

2. Calculate the distance r: Point P is x/2 above the wire, and the distance l from the midpoint of the unshielded section. Using the Pythagorean theorem, r = √((x/2)² + l²).

3. Calculate the angle θ: Since the angle is between the current and the position vector, we can use the right triangle formed by the distances x/2 and l. Using the inverse tangent function, θ = arctan((x/2) / l).

4. Plug the values of I, dl, r, and θ into the Biot-Savart law equation and calculate the differential magnetic field dB at point P due to the small length of wire dl.

Remember that this calculation is for the differential magnetic field dB at point P due to a small length of wire dl.

To know more about "Biot-Savart law" refer here:

https://brainly.com/question/13576053#

#SPJ11

Answer:

Distance travel s = 296.8 m

Explanation:

Given:

Initial velocity u = 6.5 m/s

Constant acceleration a = 2.1 m/s²

Time T = 14 s

Find:

Distance travel s

Computation:

s = ut + (1/2)at²

s = (6.5)(14) + (1/2)(2.1)(14)²

s = 91 + 205.8

Distance travel s = 296.8 m

From the calculation;

1) Melting point of indium = 171.4°

2) The resistance is 52.9 ohm

3) The power dissipated is  834 W

The temperature coefficient of resistance is a measure of how much the resistance of a material changes with temperature. It quantifies the relationship between the change in resistance and the change in temperature.

We have that;

R1/R2 = (1 + αt1)/(1 + αt2)

50/76.8 = (1 + (3.92 * \(10^-3\) * 20))/(1 +  (3.92 *\(10^-3\) * t))

0.65 = 1.0784/1 + 0.00392t

0.65(1 + 0.00392t) =  1.0784

0.65 + 0.0025t = 1.0784

t = 171.4°

P = \(V^2\)/R

R = \(V^2\)/P

R = \(230^2\)/1000

R = 52.9 ohm

The new power is;

P =\(210^2\)/52.9

P = 834 W

Learn more about resistance:https://brainly.com/question/30897317

#SPJ4

The temperature in Kelvin (K) is equal to the temperature in Celsius (°C) plus 273.15.

The Celsius and Kelvin temperature scales are two common temperature scales used in science. The relationship between these two scales can be described by a simple equation.

To convert a temperature from Celsius to Kelvin, you add 273.15 to the Celsius temperature. This equation is derived from the fact that the Kelvin scale starts at absolute zero, which is -273.15°C. Therefore, to account for the offset between the two scales, 273.15 is added to the Celsius temperature to obtain the equivalent temperature in Kelvin.

For example, if you have a temperature of 25°C, you can convert it to Kelvin by adding 273.15:

25°C + 273.15 = 298.15 K

So, 25°C is equivalent to 298.15 K.

This equation holds true for any temperature value in Celsius. By adding 273.15 to a Celsius temperature, you obtain the corresponding temperature in Kelvin.

In summary, the equation K = °C + 273.15 represents the conversion between Celsius and Kelvin temperatures, where K represents the temperature in Kelvin and °C represents the temperature in Celsius. Adding 273.15 to a Celsius temperature gives the equivalent temperature in Kelvin.

Learn more about temperature here: brainly.com/question/14585175

#SPJ11

The work done during this isothermal process is approximately 102.5 kJ.

In an isothermal process, temperature is constant. Thus, we have the following initial and final states:

Initial state: T1 = 300 K, P1 = 150 kPa, V1 = 0.4 m³.

Final state: T2 = 300 K, P2 = 800 kPa, V2 = ?

The work done during this process is given by the formula below: W = nRT ln(V2/V1)

Where n is the number of moles of the gas, R is the universal gas constant, and ln is the natural logarithm.

To determine n, we use the ideal gas law:

PV = nRT

n = PV/RT

Substituting the values in the above equation, we get: n = (150 kPa * 0.4 m³)/(8.314 kPa·m³/K·mol * 300 K) n ≈ 0.0242 mol

Substituting the values in the work formula, we get:

W = (0.0242 mol * 8.314 kPa·m³/K·mol * 300 K) ln[(0.4 m³)/(V2)]

W ≈ 110.8 ln[(0.4 m³)/(V2)]

The natural logarithm of the ratio of initial volume to final volume is equal to the natural logarithm of the ratio of final pressure to initial pressure. Thus:

ln[(0.4 m³)/(V2)] = ln[(800 kPa)/(150 kPa)]

ln[(0.4 m³)/(V2)]

≈ 1.6094V2 ≈ 0.4 m³/2.5119V2

≈ 0.159 m³

Substituting the value of V2 in the work formula, we get: W ≈ 110.8 ln(2.5119)W ≈ 110.8 * 0.9259W ≈ 102.5 kJ.

Therefore, the work done during this process is approximately 102.5 kJ.

Learn more about work done: https://brainly.com/question/25573309

#SPJ11

Answer:

Speed and velocity are both measured using the same units.

Explanation:Speed and velocity are both measured using the same units. The SI unit of distance and displacement is the meter. The SI unit of time is the second. The SI unit of speed and velocity is the ratio of two — the meter per second .

Answer: time & displacement

Explanation:

Answer:

a skydiver falling at terminal (constant) velocity

Explanation: