the two most prominent wavelengths in the light emitted by a hydrogen discharge lamp are 656 nm (red) and 486 nm (blue). light from a hydrogen lamp illuminates a diffraction grating with 530 lines/mm , and the light is observed on a screen 1.7 m behind the grating. What is the distance between the first-order red and blue fringes?

Answer:

C 40 m/s the velocity of WAve

A. The English system uses one unit for each category of measurement.

Answer:

A

Explanation:

When the Earth, Moon, and Sun are lined up, it can result in either a solar eclipse or a lunar eclipse, depending on the phase of the Moon.

When the Earth, Moon, and Sun are lined up in the order shown below, it can result in a syzygy, which is a straight-line configuration of three celestial bodies.

The order is as follows: Sun --- Moon --- Earth

The specific effects of this configuration depend on whether it occurs during a new moon or full moon.

During a new moon, the Moon is between the Earth and Sun, and the side of the Moon facing the Earth is not illuminated by sunlight. This is also known as a solar eclipse, as the Moon's shadow falls on a portion of the Earth. This can only occur during a narrow region of the Earth's surface, and those in that region will see the Sun completely blocked by the Moon.

During a full moon, the Earth is between the Sun and Moon, and the side of the Moon facing the Earth is fully illuminated by sunlight. This is also known as a lunar eclipse, as the Earth's shadow falls on the Moon. This can be seen from anywhere on the night side of the Earth, as long as the Moon is above the horizon.

Learn more about celestial bodies at: https://brainly.com/question/28873249

#SPJ1

The weight of the heaviest invertebrate in Newtons is equal to 3334.261 N.

The weight of a body can be defined as the force exerted on the object due to gravity. Weight can be expressed as a vector measurement if the gravitational force is exerted on the object.

The unit for measurement of the weight is that of force, which (SI) is the newton (N). An object having a mass of 1 Kg has a weight of about 9.8 N on the Earth's surface, and about 1/6th as much on the Moon.

The mathematical expression to find the weight of an object can be written as follows:

W = mg

Given, the weight of the invertebrate, W = 0.34 Tons

We know that 1 Ton = 9806.65 N

The weight of the invertebrate = 0.34 × 9806.65 N = 3334.26 N

Learn more about weight, here:

brainly.com/question/13040516

#SPJ1

Answer:

highest point

Explanation:

Potential energy is greatest when the most energy is stored. This could be when an object reaches its highest point in the air before falling, a rollercoaster just before it drops, or when a rubber band is stretched as far back as possible before it snaps.

Videos can be streamed from the cloud to a computer with no loss in quality because Digital signals are used to transmit data to and from the cloud.

How do digital signals work?

An established or one that represents data as a step made up of discrete values is known as a digital signal. There is no noise produced by digital signals. Electronic signals sent as pulses are used to transmit digital signals to computers. These signals can be found in things like digital phones and computers.

Because digital signals are used to transport data to and from the cloud, it should be noted that videos are said to stream from the cloud to a computer without quality degradation.

Videos can be streamed from the cloud to a computer with no loss in quality because Digital signals are used to transmit data to and from the cloud.

To know more about Digital signals, check out:

https://brainly.com/question/28160561

#SPJ1

Answer:

Explanation:

The speed of the second car after the collision can be found using the law of conservation of momentum. The law states that the total momentum of a system remains constant if no external forces act on it.The initial momentum of the first car is (15g)(22 cm/s) = 330 g cm/s to the right.

The initial momentum of the second car is (22g)(-31 cm/s) = -682 g cm/s to the left.

The total initial momentum of the system is 330 g cm/s - 682 g cm/s = -352 g cm/sAfter the collision, the final momentum of the first car is (15g)(-42 cm/s) = -630 g cm/s to the left.

The final momentum of the second car is (m)(v) where m is the mass of the second car and v is the speed after the collision.

The total final momentum of the system is -630 g cm/s + (m)(v) = -352 g cm/s (since it remains constant)Therefore, m*v = -630 g cm/s + 352 g cm/s = -278 g cm/sTo find v, we need to divide the momentum by the mass

v = -278 g cm/s / 22 g = -12.6 cm/sSo the speed of the second car after the collision is -12.6 cm/s to the left.

From the given stem plot of the heights of students in inches, the height of a student will be 51 inches, i.e., option C.

Each data value in a stem and leaf plot is divided into a “stem” (the first number of the digit) and a “leaf” (often the final digit).

The “leaf” values follow the “stem” values to the right (or left) in a list format.

Each “leaf” displays the individual scores within each group, while the “stem” is used to categorize the results.

The list of heights (in inches) of students from the following stem plot graph is as follows – 51, 53, 56, 57, 57, 58, 58, 60, 62, 67, 69, 72, 73

So, the height corresponding to a student from the given list is 51 inches. Therefore, the correct option is C, 51 inches.

Learn more about stem plot graphs here:

https://brainly.com/question/28534609

#SPJ7

When the wood comes down the change in potential energy of mass 2 kg and velocity 12 m/s is 144 J.

When the object is thrown vertically upwards, the height increases. The potential energy also increases with respect to the height. The potential energy is maximum, and the kinetic energy is zero when the stone moves vertically upwards.

When the object comes down, the potential energy decreases and results in increasing in kinetic energy. When the stone comes down, the potential energy is converted to kinetic energy, and the change in potential energy results in kinetic energy.

From the given,

mass of the wood (m) = 2kg

the velocity of the wood (v) = 12 m/s

kinetic energy (K.E) = mv² / 2

                                = (2×12×12) / 2

                                = 144 J

Thus, the change in kinetic energy is 144 J.

Learn more about Kinetic energy :

https://brainly.com/question/999862

#SPJ1

Answer:

32.13 N

Explanation:

Given that

mass of the crate, m = 3 kg

angle of inclination, = 35°

coefficient of static friction, = 0.3

To solve this, we can assume that the minimum force is F Newton, then use the formula

mgsinA = coefficient of static friction * [F + mgcosA]

=>3 * 9.8 * sin35 = 0.3 * [F + 3 * 9.8 * cos35]

=> 29.4 * 0.5736 = 0.3 * [F + 29.4 * 0.8192]

=> 16.86 = 0.3 [F + 24.08]

=> 16.86 = 0.3F + 7.22

=> 16.86 - 7.22 = 0.3F

=> 0.3F = 9.64

=> F = 9.64/0.3

=> F = 32.13 N

Therefore, the Force that must be applied is 32.13 N

The  net force that must be applied is  9.8 N.

The minimum force required is Fnet.

Fnet = -Ff + mgsinθ

But Ff = μN = μmgcosθ

Fnet = - μmgcosθ + mgsinθ

Where;

m = 3.00 kg

μ =  0.300

θ = 35.0o

Substituting values;

Fnet = mgsinθ - μmgcosθ

Fnet = (3 × 10 × sin 35.0o) - (3 × 0.300  × 10 × cos  35.0o)

= 17.2 - 7.4

Fnet = 9.8 N

Learn more: https://brainly.com/question/2510654

Explanation:

Potential energy is a scalar quantity because it has only magnitude and no direction. Its ability to be negative does not affect its scalar nature.

Please mark brainliest

[M0L1T - 2] is the computed Dimensional formula for acceleration. [M0L3T0] is the volume. It is now [M0L0T1]. It is [M0L1T0] miles away. The time formula is [M0L0T1].

Force = mass * acceleration is the formula.

The dimensional formulas for mass and acceleration are [M1L0T0] and [M0L1T - 2], respectively.

The dimensional formulas for mass and volume are [M1L0T0] and [M0L3T0], respectively.

Formula for velocity is: velocity = change in displacement time.

The dimensional formulas for time and displacement are [M0L0T1] and [M0L1T0], respectively.

Work is defined as: force times distance.

The dimensional formulas for force and distance are [M1L1T - 2] and [M0L1T0], respectively.

Formula: force times time equals pressure

The dimensional formulas for force and time are [M1L1T - 2] and [M0L0T1], respectively.

Learn more about Dimensional Formula here-

https://brainly.com/question/13078117

#SPJ9

Let's see

\(\\ \rm\Rrightarrow 1metre= 10^2cm\)

\(\\ \rm\Rrightarrow 1m=10^3mm\)

\(\\ \rm\Rrightarrow 1m=10^6\mu m\)

\(\\ \rm\Rrightarrow 1m=10^{-3}km\)

\(\\ \rm\Rrightarrow 1m=10^{9}nm\)

Answer:

You didn't put any options but there are water droplets on the window due to dew-condensation.

Explanation:

I learned this in class.

Answer:

its C or D

Explanation:

The energy from the sun caused water to heat up and evaporate.

Answer:

the water that remain in the tank in one hour will be 200 lb

Explanation:

Initial mass of water in the tank = 2000 lb

hot water is delivered through the first inlet pipe at a rate of = 0.8 lb/s

cold water is delivered through the second inlet pipe at a rate of = 1.2 lb/s

exit pipe flow rate = 2.5 lb/s

amount of water in the tank after one hour = ?

In one hour, there are 60 x 60 seconds = 3600 sec, therefore

the water through the first inlet pipe in one hour = 0.8 x 3600 = 2880 lb

the water through the second inlet pipe in one hour = 1.2 x 3600 = 4320 lb

the water through the exit in one hour = 2.5 x 3600 = 9000 lb

The total amount of water in the tank = 2000 + 2880 + 4320 = 9200 lb

The total amount of water that leaves the tank = 9000 lb

therefore, in one hour, the water that remain in the tank will be

==> 9200 lb - 9000 lb = 200 lb

The moment of inertia (I) will changes and net torque (Tnet) will also change, while the angular acceleration (a) remains constant.

The formula for net torque acting on an object is given as;

T(net) = Ia

where;

The  moment of inertia of an object is given as;

I ∝ MR²

where;

So mass, M changes, the moment of inertia (I) changes and net torque will also change, while the angular acceleration remains constant.

Learn more about moment of inertia here: https://brainly.com/question/3406242

#SPJ1

The approximate heat transfer through 1.65 cm of air with a temperature difference of 23.0 °C is approximately 24.4 J/s.

To approximate the heat transfer through the air layer in the double-paned window, we can assume that the glass layers have a negligible impact on the heat flow. The heat transfer can be calculated using Fourier's Law of Heat Conduction, which states that the heat flow (Q) is proportional to the temperature difference (ΔT) and inversely proportional to the thickness (L) and thermal conductivity (k) of the material.

First, we need to calculate the effective thermal conductivity of the air layer due to its thickness and the thermal conductivity ratio between air and glass. Let's denote the thermal conductivity of air as k_air and the thermal conductivity of glass as k_glass. Since glass has a thermal conductivity roughly 36 times greater than air, we have k_glass = 36 * k_air.

Next, we calculate the effective thermal conductivity of the air layer as:

k_eff = (k_air * L_air) / (L_air + k_glass)

Substituting the given values, we have:

k_eff = (k_air * 0.0165 m) / (0.0165 m + 0.005 m) = 0.01309 * k_air

Now, we can calculate the heat flow per second through the air layer using the formula:

Q = (k_eff * A * ΔT) / L_air

Substituting the given values, we get:

Q = (0.01309 * k_air * 0.760 m^2 * 23.0 K) / 0.0165 m = 24.4 J/s

Therefore, the approximate heat transfer through 1.65 cm of air with a temperature difference of 23.0 °C is approximately 24.4 J/s.

For more questions on temperature, click on:

https://brainly.com/question/27944554

#SPJ8

Answer:

selective attention

Explanation:

In order to draw the free body diagram, let's draw the cart as a rigid object and each external applied force acting on this rigid object.

Also, the bigger the magnitude of the force, the bigger the arrow we draw to represent this force.

So we have:

Since the force to the left is greater than the force to the right and they are acting in opposite directions, the resulting force is the difference of the magnitudes and the resulting force is to the left. Therefore the blue team is the winner.

PV=nRT

Here

P=Pressure

V=Volume

n=Molarity

R=universal gas constant

T=Temperature.

LHS

\(\\ \tt\bull\leadsto PV\)

\(\\ \tt\bull\leadsto [ML^2T^{-2}][M^0L^3T^0]\)

\(\\ \tt\bull\leadsto [ML^5T^{-2}]\)

RHS

\(\\ \tt\bull\leadsto nRT\)

\(\\ \tt\bull\leadsto [M^0L^{3}T^0][M^1 L^2 T^{-2}K^{-1}][M^0L^0T^0K^1]\)

\(\\ \tt\bull\leadsto [ML^5T^{-2}]\)

LHS=RHS

hence verified

The correct answer is A. An energy source creates an electric force field that moves electrons through a circuit.

a) Time period is given by 0.751 b) Displacement is  0.0751 nm c) The wavelength of the electromagnetic radio waves emitted is  225.56 m

T = 1/f

T = 1/(1330*10^3 Hz)

T = 751.88 ns

Time period T = 0.751 us

b) displacement is given by:

x = velocity * Time

x = 100*10^-6 m/sec*0.751*10^-6 sec

x = 0.0751 nm

c) lambda = c/f

lambda = 3*10^8/(1330*10^3 Hz)

lambda = 225.56 m

Displacement, commonly known as length or distance and denoted by the letters d or s, is a one-dimensional variable that represents the separation between two defined points. In the International System of Units (SI), the meter is the common unit of displacement (m). Transferring unfavorable emotions from one thing or person to another is referred to as displacement and is a defensive tactic. To "take out" their rage on a family member, for instance, a person can yell at them if they are upset with their job. Replace, supersede, and supplant are some frequent alternatives to the word "displace."

Learn more about displacement here:

https://brainly.com/question/11934397

#SPJ4

The magnitude of the velocity of the eagle would be 8.4 m/s and its direction would be -69.4°.

Let's consider the motion of the fish just before it hits the water. At this point, the fish has a downward velocity due to gravity, and a horizontal velocity equal to the eagle's velocity. The horizontal velocity of the fish remains constant throughout its motion, but the vertical velocity changes due to the effect of gravity.

We can use the following kinematic equation to find the velocity of the fish just before it hits the water:

v^2 = u^2 + 2as

where v is the final velocity of the fish just before it hits the water, u is the initial velocity of the fish, a is the acceleration due to gravity (-9.8 m/s^2), and s is the vertical distance the fish falls (3.60 m).

The initial vertical velocity of the fish is zero, so we can simplify the equation to:

v^2 = 2as

v^2 = 2 x (-9.8 m/s^2) x (3.60 m)

v^2 = -70.56

v = sqrt(-70.56)

Since the final velocity of the fish cannot be negative, we know that the fish hits the water with a velocity of:

v = 8.4 m/s (approx)

The direction of the velocity can be found using trigonometry. The velocity of the fish has two components: a horizontal component equal to the eagle's velocity (3.80 m/s) and a vertical component due to gravity. The angle between the velocity vector and the horizontal axis can be found using the following equation:

tan(theta) = vertical component / horizontal component

tan(theta) = (-9.8 m/s^2) / (3.80 m/s)

theta = -69.4 degrees (approx)

The negative sign indicates that the velocity vector is below the horizontal axis, which means that the fish is moving downward at an angle of 69.4 degrees relative to the horizontal. Therefore, the direction of the velocity vector is:

θ = -69.4° (approx) (measured below the horizontal axis)

More on velocity can be found here: https://brainly.com/question/17127206

#SPJ1

The resistance of the electric device using a power of 650 watts is approximately 27.7 ohms.

Ohm’s law states that the potential difference between two points is directly proportional to the current flowing through the resistance.

Hence

V = IR

R = V/I

Where V is the voltage or potential difference, potential difference, I is the current and R is the resistance.

We need to first find the electric current I.

Note:

Power = Voltage × Current.

Hence:

Current I = Power/Votage

Plug in the values

I = 650 / 120

I = 13/3 A

Substituting the values of voltage and current intio the above formula, we can calculate the resistance:

R = V/I

R = 120 / (13/3)

R = 27.7 ohms

Therefore, the resistance is approximately 27.7 ohms.

Learn more about ohms law here:

https://brainly.com/question/12948166

#SPJ1

Answer:

1. a vector field is an assignment of a vector to each point in a subset of space.

2. The direct answer is that it happens through Newton’s second law. If an object is in a potential field that is different at different points in space, then the object will experience a force in the direction in which the potential energy decreases. Newton’s second law says that a force causes a change in motion, which changes the kinetic energy.

3. According to Coulomb, the electric force for charges at rest has the following properties: Like charges repel each other; unlike charges attract. Thus, two negative charges repel one another, while a positive charge attracts a negative charge. The attraction or repulsion acts along the line between the two charges.

4. Ions are charged atoms that form when an atom donates or accepts one or more negatively charged electrons. Cations (ions with a positive charge) are attracted to anions (ions with a negative charge). This attraction is called an ionic bond.

5. Magnetic Field

Hope it Helps!!!!

Answer:

attached below

Explanation:

Gravitational potential

energy = \(- \frac{GmM}{r}\) ,

V ∝ \(- \frac{1}{r}\)  

attached below is a graph that represents the gravitational potential energy U

Gravitational potential energy is the energy held in an entity as a result of its vertical position or length. This gravitational pull of a planet on an object causes the information to be stored.

This is connected with gravitational pull since it takes work to lift anything against the gravity of the Earth.

Freshwater in a raised lake or kept behind a dam demonstrates gravitational force.

According to the formula:

Gravitational potential energy \(\bold{=-\frac{GMm}{r^2}}\)

Therefore

\(\to \bold{V \propto -\frac{1}{r}}\)

Therefore, the answer is "Option d"

Learn more about the Gravitational potential :

brainly.com/question/17001724

The centripetal force pulling the weight inward is 19.7 N. The closest option to this value is option (D), 19.7 N.

What is Centripetal Force?

Centripetal force is a force that acts on an object moving in a circular path, directing it toward the center of the circle. In other words, it is the force required to keep an object moving in a circular path, rather than flying off in a straight line. The word "centripetal" comes from the Latin words "centrum", which means "center", and "petere", which means "to seek or aim for".

The centripetal force, which is the force acting on an object moving in a circular path, is given by the formula:

F = m * v^2 / r

where F is the centripetal force, m is the mass of the object, v is its velocity, and r is the radius of the circular path.

In this case, the mass of the weight is 770 g, or 0.77 kg, the velocity is 4.24 m/s, and the radius is 0.94 m.

F = (0.77 kg) * (4.24 m/s)^2 / 0.94 m

F = 19.7 N

Therefore, the centripetal force pulling the weight inward is 19.7 N. The closest option to this value is option (D), 19.7 N.V

Learn more about Centripetal Force from given link

https://brainly.com/question/20905151

#SPJ1