Consider the video you just watched. The two pucks of equal mass did not move linearly (they came to a stop) after the collision due to the conservation of linear momentum. However, since the two pucks mutual center of mass does not coincide with either of the pucks velocity vectors, they have angular momentum. This becomes evident after the collision when due to conservation of angular momentum the two pucks spin around their mutual center of mass. The two pucks collide and stick together (they have velcro)due to angular momentum they spin. Part A Suppose we replace both hover pucks with pucks that are the same size as the originals but twice as massive. Otherwise, we keep the experiment the same. Compared to the pucks in the video, this pair of pucks will rotate a.at the same rate. b.one-fourth as fast. c.four times as fast. d.twice as fast. e.one-half as fast.

Science does not  work when every one does the same thing, some creative thinking will be major breakthroughs for an invention. Therefore, option B is correct.

So how do researchers come up with those particular questions to look into ! It may come as a shock to learn how much imagination is required for the procedure.

Peter Medawar, a Nobel Prize-winning biologist, once described scientific inquiry as "the art of the soluble"  In order to succeed in science, one must first identify the questions that may be answered by scientific study and then determine the answers to those questions, according to Medawar.

Because of how intricate the natural world is, it is frequently impossible to directly address the really intriguing, significant scientific topics

The art of science includes repeatedly re-imagining these complex issues, mentally dividing them into more manageable components, and then guessing as to which of these more manageable components might hold the answer to solving the larger issue.

Therefore, all the discoveries and inventions are resulted from the creative ideas and thoughts of scientists. Therefore, creativity is the only way to make a controlled experiment.

Find more on scientific questions:

https://brainly.com/question/17752552

#SPJ7

Answer:

25 N  in the direction of your push

Explanation:

The friction force acts against your pushing force....it reduces the net amount of force you are exerting

Net force =  40 - 15 = 25 N  

The dsDNA molecule with 200 nucleotides and 20% guanine would have a total of 240 hydrogen bonds.

In a double-stranded DNA molecule, the number of hydrogen bonds between complementary base pairs determines the stability of the molecule.

Guanine (G) pairs with cytosine (C), and adenine (A) pairs with thymine (T), with each base pair forming a specific number of hydrogen bonds.

The number of hydrogen bonds in a G-C base pair is three, while the number of hydrogen bonds in an A-T base pair is two.

Therefore, to determine the number of hydrogen bonds in a dsDNA molecule with 20% guanine, we first need to calculate the number of guanine-cytosine base pairs.

So out of the 200 nucleotides, 20% will be guanine and 20% will be cytosine, which means there will be 40% G-C base pairs.

The number of G-C base pairs can be calculated by multiplying the total number of base pairs (200/2 = 100, since each nucleotide pairs with one other nucleotide) by the percentage of G-C base pairs (40% or 0.4):

Number of G-C base pairs = 100 x 0.4 = 40

Therefore, the total number of hydrogen bonds in the dsDNA molecule would be:

Number of hydrogen bonds = (number of G-C base pairs x 3) + (number of A-T base pairs x 2)

= (40 x 3) + (60 x 2)

= 120 + 120

= 240

So the total number of hydrogen bonds in the dsDNA molecule is 240

Read more about hydrogen bonds at

https://brainly.com/question/13935578

#SPJ1

Complete question

A dsDNA molecule consists of 200 nucleotides with 20% guanine.

What is the number of hydrogen bonds in that molecule ? 1) 360 2) 260 3) 180 4) 240

The Acceleration of the system as depicted in the diagram is 1.38 m/s².

Acceleration is the rate of change of velocity. The S.I unit of acceleration is m/s²

To calculate the acceleration of the system, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the acceleration of the system is 1.38 m/s².

Learn more about acceleration here: https://brainly.com/question/26216029

#SPJ1

The limiting reactant is the material that is in the shortest supply and will run out first, thus limiting the production of the bicycle. To determine the limiting reactant, we need to calculate how many bicycles we can make with each material:

a. With 5 frames, we can make a maximum of 5 bicycles.
b. With 10 seats, we can make a maximum of 10 bicycles.
c. With 16 wheels, we can make a maximum of 8 bicycles (since each bicycle requires 2 wheels).
d. With 20 pedals, we can make a maximum of 10 bicycles (since each bicycle requires 2 pedals).

Therefore, the limiting reactant is c. 16 wheels, as we can only make a maximum of 8 bicycles with this amount of wheels, even though we have enough of all the other materials to make 10 bicycles.

To know more about limiting reactant:

https://brainly.com/question/22231565

#SPJ11

Answer:

20 N in West direction.

Explanation:

opposite forces cancel each other. so 20 N in north and 20N in south cancel each other. In west and east direction...

70N in west-50N in east= 20N in west

The electric flux through the given planar surface is 10.56675 Nm²/C.

Given data:

Planar surface area, A = 0.03 m²

Electric field strength, E = 704.5 N/C

Normal to surface, n = 60 degrees (the normal is oriented as shown)

The electric flux through the planar surface can be calculated using the formula,φ = E . A . cosθ

Where, E is the electric field strength

A is the area of the surface

θ is the angle between the normal to the surface

and the electric field vector Plugging in the given values,

                   φ = (704.5 N/C) x (0.03 m²) x cos 60°

                         = (704.5 N/C) x (0.03 m²) x 0.5

                          = 10.56675 Nm²/C

The electric flux through the given planar surface is 10.56675 Nm²/C.

Learn more about electric flux

brainly.com/question/27548691

#SPJ11

Answer:

16m

Explanation:

Given parameters:

Time  = 4s

Initial velocity  = 0m/s

Acceleration  = 2m/s²

Unknown:

How far will the body move  = ?

Solution:

To solve this problem, we use the expression below:

  s  = ut  + \(\frac{1}{2}\) at²  

s is the distance

u is the initial velocity

t is the time

a is the acceleration

   s  = (0 x 4) + ( \(\frac{1}{2}\) x 2 x 4²)  = 16m

Explanation:

by inches to centimeter u can convert to meters

When the red light is on the pigeon does not peck on the disk and picks on green light, this demonstration is Stimulus reinforcement.

Fantastic reinforcement refers to the introduction of a perfect or quality stimulus after a conduct. The acceptable stimulus reinforces the conduct, making it more likely that the conduct will reoccur.

Reinforcement can consist of anything that strengthens or increases a behavior. three In a lecture room setting, for example, varieties of reinforcement would possibly include giving praise, letting college students out of undesirable work, or presenting token rewards, sweet, greater playtime, or a laugh sports.

Disclaimer:-your question is incomplete, please see below for complete question

A pigeon has learned that pecking a key when a red light is on is sometimes reinforced with access to food. The first time a green light is turned on, the pigeon begins to peck at the key. This illustrates the process of__

a. Stimulus discrimination

b.  Stimulus discrimination

c. Stimulus reinforcement

d. Observational learning

Hence the answer is option c Stimulus reinforcement.

Learn more about Stimulus reinforcement here:-https://brainly.com/question/28096711

#SPJ1

When the red light is on the pigeon does not peck on the disk and picks on green light, this demonstrates the concept of Stimulus reinforcement.

Stimulus reinforcement is a stimulation that strengthens or weakens the behavior that has produced it.

Reinforcement is an action to encourage something. Stimulus is something that produces a sensory or behavioral response in a species.

A Positive stimulus reinforcement is referring to the introduction of desirable stimulus. It makes the stimulus reinforcement more likely that the behavior will be reoccurring. For example, In a classroom, praises act like a reinforcement. When the red light is on the pigeon does not peck on the disk and picks on green light, demonstrating Stimulus Reinforcement.

Fantastic reinforcement refers to the introduction of a perfect and a quality stimulus after a conduction.

Learn more about Stimulus Reinforcement here, brainly.com/question/28096711

#SPJ1

Answer:

the handle

Explanation:

Answer:

función sinusoidal

Explanation:

En un circuito de CA, la corriente y el voltaje tienen un voltaje máximo y mínimo. A intervalos regulares, la corriente y el voltaje invierten la dirección y cambian su magnitud continuamente con el tiempo.

Por lo tanto, para representar la corriente y el voltaje en un circuito de CA, se utiliza una función sinusoidal. Una función seno es una función continua con oscilaciones periódicas.

Complete Question:

Two solid rods have the same length and are made of the same material with circular cross sections. Rod 1 has a radius r, and rod 2 has a radius r / 2. If a compressive force F is applied to both rods, their lengths are reduced by ΔL1 and ΔL2, respectively. The ratio ΔL1 / ΔL2 is equal to.

Answer:

\(\frac{\triangle L_1}{\triangle L_2} =\frac{1}{4}\)

Explanation:

Since the two rods have the same length, L₁ = L₂ = L

Radius of rod 1, r₁ = r

Radius of rod 2, r₂ = r/2

Cross sectional area of rod 1, \(A_1 = \pi r^2\)

Cross sectional area of rod 2, \(A_2 = \frac{\pi r^2}{4}\)

The same compressive force is applied to the two rods, F₁ = F₂ = F

The rods are said to be made of the same material, this means that they have the same young's modulus.

Young's modulus of rod 1, \(Y_1 = \frac{FL}{A_1 \triangle L_1}\)

Young's modulus of rod 2, \(Y_2 = \frac{FL}{A_2 \triangle L_2}\)

Since Y₁ = Y₂

\(\frac{FL}{A_1 \triangle L_1} = \frac{FL}{A_2 \triangle L_2}\\\\ \frac{1}{A_1 \triangle L_1}= \frac{1}{A_2 \triangle L_2}\\\\\)

\(\frac{\triangle L_1}{\triangle L_2} = \frac{A_2}{A_1}\\\)..............(*)

Put A₁ and A₂ into (*)

\(\frac{\triangle L_1}{\triangle L_2} = \frac{\pi r^2/4 }{\pi r^2}\\\\\frac{\triangle L_1}{\triangle L_2} =\frac{1}{4}\)

Answer:

The metal base and the plastic housing are sealed together to complete the tea kettle body.

Explanation:

hope this helps :D

When weighing chemicals on a balance, the term "tare" is used. Pressing the tare button enables you to record only the weight of the substance being measured, not the weight of the container it is being measured in.

Weighing by difference is automatically accomplished by tarring a balance. When a balance is tared with an object on the balance pan, the weight of the object is automatically subtracted from each reading up until the balance is re-tared or zeroed.

Testing a balance is crucial because you want an accurate result when you weigh an object. The calculations could all be off if a balance is not set to zero.

To know more about balance visit:

https://brainly.com/question/11927829

#SPJ4

The given forces are a 100 N force and a 50 N force acting on point P. The 100 N force acts due north. We have to calculate the magnitude and direction of the resultant force. Use vector addition to find the resultant force, we can use the Pythagorean theorem. The magnitude of the resultant force is 111.8 N (approximately)

We haveF1 = 100N force acting due north.F2 = 50N force acting at an unknown direction

Therefore, Resulant force, F = √(F1² + F2²) Resulant force, F = √(100² + 50²) Resulant force, F = √10000 + 2500Resulant force, F = √12500Resulant force, F = 111.8 N (approximately)Now, we can use trigonometry to find the direction of the resultant force. We can find the angle using sine and cosine functions.

We have the angle that the resultant force makes with the north direction as follows; sin(θ) = opposite/hypotenuse = F2/Fcos(θ) = adjacent/hypotenuse = F1/F Solving for θ, we get;θ = tan⁻¹(F2/F1)θ = tan⁻¹(50/100)θ = tan⁻¹(0.5)θ = 26.57°

Hence, the magnitude of the resultant force is 111.8 N (approximately) and the direction of the resultant force makes an angle of 26.57° with the north direction.

Learn more about forces at

https://brainly.com/question/13191643

#SPJ11

Since Φ(R90) = R270, we know that Φ maps the rotation by 90 degrees to the rotation by 270 degrees. This means that Φ must preserve the cyclic structure of the rotations.

Since R90 generates all the rotations, Φ must map all the rotations to their corresponding rotations under R270, i.e. Φ(R180) = R90 and Φ(R270) = R180.

Since Φ(V) = V, we know that Φ must preserve the structure of the reflections. This means that Φ must map D to D and H to H, as D and H generate all the reflections.

Therefore, we have Φ(D) = D and Φ(H) = H.
To determine Φ(D) and Φ(H) in the automorphism of D4, we can use the given information: Φ(R90) = R270 and Φ(V) = V.

Step 1: Since Φ is an automorphism, it preserves the group operation. We have Φ(R90) = R270, so applying Φ(R90) twice gives Φ(R90) * Φ(R90) = R270 x R270.

Step 2: Using the property that R90 x R90 = R180, we have Φ(R180) = R270 * R270 = R180.

Step 3: Next, we need to find Φ(D). We know that D = R180 x V, so Φ(D) = Φ(R180 x V) = Φ(R180) x Φ(V) = R180 * V = D.

Step 4: Finally, we determine Φ(H). We know that H = R90  V, so Φ(H) = Φ(R90 x V) = Φ(R90) x Φ(V) = R270 x V = H.

In conclusion, Φ(D) = D and Φ(H) = H for the given automorphism of D4.

To know more about cyclic structure, visit:

https://brainly.com/question/9408873

#SPJ11

Answer: In general, airplane tracks are flat, they do not have cant, consequently the friction force is what keeps the bicycle in the circle.

Let's use Newton's second law, let's set a reference frame with the horizontal x-axis and the vertical y-axis.

Y axis y

    N- W = 0

    N = W

X axis (radial)

       fr = m a

the acceleration in the curve is centripetal

        a =

the friction force has the expression

       fr = μ N

we substitute

      μ mg = m v²/r

      v =

we calculate

     v =

     v = 1,715 m / s

to compare with the cyclist's speed let's reduce to the SI system

       v₀ = 18 km / h (1000 m / 1 km) (1 h / 3600 s) = 5 m / s

We can see that the speed that the cyclist is carrying is greater than the speed that the curve can take, therefore the cyclist will SKID

Explanation:

Answer:

debits on the bank statement

I am a field physicist and I perform QA measurements of various types of X-ray units. Due to recent changes in legal requirements in my country, we have to provide the radiation output value for each unit tube measured in m Gy MA's at 1 meter from focal spot) at filtration of 2,5 mm Al equivalent. a. True

This unfortunately cannot be directly achieved for interventional radiology units, some CTs and occasionally other types of X-ray units. A filter of 2 mm of aluminum will absorb the soft, or less penetrating, radiation. Aluminum is often used as a filter in radiography because it effectively absorbs low-energy, soft X-rays, while allowing more penetrating, higher-energy X-rays to pass through. This helps improve image quality and reduce patient exposure to unnecessary radiation.

learn more about radiation here

https://brainly.com/question/31561778

#SPJ11

Inducing magnetic properties on a substance means you are aligning the electrons to spin in the same direction, 2nd option.

The magnetic intensity is the magnetic field produced solely by the electric current flowing in a solenoid. The magnetic property of a material is induced by an external magnetic field. When a material is exposed to an external magnetic field, it becomes magnetized.

A strong magnetic field is produced when the majority of electrons in an atom spin in the same direction. The magnetic field's direction is determined by the direction of electron spin.

Learn more on magnetic induction here: https://brainly.com/question/26366866

#SPJ1

Answer:B make sure it’s the same order

Explanation:

Correct on Plato

When the resistor in the circuit has a larger resistance value, it will lower the total current that flows in the circuit.

In an electric circuit, resistance is the opposition that an electrical circuit exhibits to the flow of electric current. In general, resistance is measured in ohms (Ω).

When large resistance used:

When large resistor added:

As a result, adding a larger resistor to a circuit would lower the total current that flows in the circuit.

Learn more about resistance:

https://brainly.com/question/30901006

#SPJ11

Answer:

probably a

Explanation:

I think that's what it is

No, the sun cannot explain global warming. Global warming is a phenomenon in which the temperature of the Earth's surface and atmosphere is rising continuously due to human activities such as deforestation, burning of fossil fuels, and industrialization.

This increase in temperature cannot be explained only by an increase in solar radiation.There are several factors which contribute to global warming, including greenhouse gases such as carbon dioxide, methane, and water vapor. These gases trap heat in the Earth's atmosphere, which causes the planet's temperature to rise. The sun's radiation does contribute to global warming, but it is not the main cause.

i) To calculate the increase in solar radiation that would cause the Earth to warm up by 1 K, we can use the following formula:ΔS = ΔT / αWhere ΔS is the increase in solar constant, ΔT is the increase in temperature, and α is the Earth's albedo (reflectivity).α = 0.30 is the standard value used for the Earth's albedo.ΔS = ΔT / αΔS = 1 K / 0.30ΔS = 3.33 W/m2So, to explain the increase in temperature of 1 K over the last hundred years, the solar constant would need to increase by 3.33 W/m2.

ii) The observed fluctuation of the solar constant over the past 400 years has been around 0.1% to 0.2%. This is much smaller than the 3.33 W/m2 required to explain the increase in temperature of 1 K over the last hundred years. Therefore, it is unlikely that the sun is the main cause of global warming.

The sun cannot explain global warming. While the sun's radiation does contribute to global warming, it is not the main cause. The main cause of global warming is human activities, particularly the burning of fossil fuels, which release large amounts of greenhouse gases into the atmosphere.

To know more about global warming :

brainly.com/question/29625243

#SPJ11

Based on the forces acting on the axes, the resultant moments will be (345, 400, 600 N·m)

= F₃ x 3

= -115 x 3

= -345 N·m

= F₁ x 2

= -200 x 2

= -400 N·m

= F₄ x 2

= -300 x 2

= - 600 N·m

In conclusion, the resultant moment about x, y, and z axes is (345, 400, 600 N·m)

Find out more on resultant moments at https://brainly.com/question/6278006.

The following measurement means "no limitation". This measurement indicates the range of motion for wrist flexion, which is the movement of the wrist towards the palm of the hand.

What is wrist flexion?

Wrist flexion is the movement of the wrist towards the palm of the hand. It is the opposite movement of wrist extension, which is the movement of the wrist away from the palm of the hand. Wrist flexion is an important motion for many daily activities such as typing, writing, and holding objects.

What does 15-85 degrees of wrist flexion mean?

When measuring wrist flexion, the range of motion is measured in degrees. In this case, the measurement is 15-85 degrees. This means that the normal range of motion for wrist flexion is between 15 and 85 degrees. If the measurement falls within this range, then there is no limitation in wrist flexion. However, if the measurement falls outside of this range, then there may be a limitation in wrist flexion.A limitation in extension refers to a decreased range of motion when moving the wrist away from the palm of the hand. A limitation in flexion refers to a decreased range of motion when moving the wrist towards the palm of the hand. A limitation in both flexion and extension refers to a decreased range of motion in both movements.

To know more about wrist flexion, visit:

https://brainly.com/question/31539405

#SPJ11

Answer:

a. He notices that when he kept the compass near the electrical wire with current flowing through it, the compass did not point north; instead, the compass needle pointed in the direction of the current's magnetic field.

b. The bulb did not glow because the current was not sufficient to make it glow.

c. Deflection in the compass will increase further.

Explanation:
hope this helped you :) I am a beginner so i would greatly appreciate a lot if you Mark me as brain list <3

Yes, the given statement is correct in a football game, a 140 kg linebacker runs at a speed of 4 m/s while a 70kg safety runs at 8m/s.

Momentum is directly proportional to mass and velocity. The momentum of the object increases proportionally as either mass or velocity are increased. The momentum is doubled for every unit increase in mass or speed.

In first case

Momentum = mass × velocity

Momentum = 140 × 4

Momentum = 560 kg.ms⁻¹

In second case

Momentum = mass × velocity

Momentum = 70 × 8

Momentum = 560 kg.ms⁻¹

In both cases momentum is same so the given statement is correct.

To know more about momentum visit:

https://brainly.com/question/24030570

#SPJ1

True, if the electric flux through a closed surface is zero, the electric field at points on that surface must be zero.

What does a closed surface's electric flux look like?

The charge encapsulated divided by the permittivity is equal to the total electric flux out of a closed surface. The electric field is multiplied by the surface area projected in a plane perpendicular to the field to get the electric flux across a region.

If there is a net outward flow, the electric flux through a closed surface is positive; if there is a net inward flow, it is negative. If there is a source inside the closed surface, we have a net outward flux, and if there is a sink inside the closed surface, we have a net inward flux. Zero field implies zero flux, but zero flux does not imply zero field.

To learn more about electric flux  use link below:
https://brainly.com/question/26289097

#SPJ4