The head of a golf club moving at 45. 0 m/s strikes a golf ball (mass 46. 0 g) resting on a tee. The effective mass of the clubhead is 220 g. (a) with what speed does the ball leave the tee? (b) with what speed would it leave the tee if you doubled the mass of the clubhead? if you tripled it? what conclusions can you draw about the use of heavy clubs? assume that the collisions are perfectly elastic and that the golfer can bring the heavier clubs up to the same speed at impact. See question 13

Answer:

not sure just need points

Explanation:

a+b+c

Ahmad's average speed on his way to his friend's house is 60 miles per hour, while on the return trip, it is 50 miles per hour. The total time for the round trip is 11 hours.

Let's assume the distance between Ahmad's house and his friend's house is D miles. To find the distance, we can use the formula: Distance = Speed × Time.

On the way to his friend's house, Ahmad travels at an average speed of 60 miles per hour. Let's denote the time taken for this leg of the trip as T1. Using the formula, we have D = 60 × T1.

On the return trip, Ahmad travels at an average speed of 50 miles per hour. The time taken for this leg of the trip can be denoted as T2. Using the formula, we have D = 50 × T2.

According to the problem, the total driving time for the round trip is 11 hours. This can be expressed as T1 + T2 = 11.

Now, we have a system of two equations:

D = 60T1

D = 50T2

T1 + T2 = 11

To solve this system, we can use substitution or elimination. Let's use substitution. From the first equation, we can express T1 in terms of D: T1 = D/60. Substituting this into the third equation, we get D/60 + T2 = 11. Rearranging the equation, we have T2 = 11 - D/60.

Now, substitute the expression for T2 in the second equation: D = 50(11 - D/60).

Simplifying the equation, we have D = 550 - 5D/6.

Multiply both sides by 6 to eliminate the fraction: 6D = 3300 - 5D.

Add 5D to both sides: 11D = 3300.

Divide both sides by 11: D = 300.

Therefore, the distance between Ahmad's house and his friend's house is 300 miles.

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Answer:

Define the problem . what's exactly going on ?

- set some goals

- examine the consequences

- put your solution into practice

- brainstorm possible solutions

- Team working

Explanation:

ANY PROBLEM RELATED TO MANI CUSTOMER BILLING ACCOUNTING IN BOOKKEEPING ETC

NING A WAY TO MAKE THE COMPANY MORE PRODUCTS FIDABLE THROUGH NEW SERVICE OR PRODUCT OFFERING NEW PRICING IDEA PROMOTING AND SALES IDEA

The kinetic energy of another body having three times the mass of the given object will be 108 J

Kinetic energy-In physics, the kinetic energy of an object is the energy  it has due to  motion. It is defined as the work required to accelerate a body from a given mass from rest to a specified speed.

The kinetic energy of a body is given by \(K.E= \frac{1}{2}Mv^{2}\) (first equation)

Given K.E= 36J

Now the mass of second body is m=3M

also the second body is moving with the same speed v

So kinetic energy of second body K.E₂= \(\frac{1}{2}mv^{2} =\frac{1}{2}(3M)v^{2}\)=36×3

=108J (from first equation)

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In physics, current refers to the flow of electric charge through a conducting medium, such as a wire. The answers are:

a) The end of the inductor connected to the positive terminal of the power supply or the source will be at a higher potential.

b) The end of the inductor connected to the negative terminal of the power supply or the source will be at a higher potential.

Electric current can be visualized as the movement of charged particles, typically electrons, in a circuit. When there is a potential difference, or voltage, applied across a conductor, such as a battery connected to a wire, the electric charges are pushed by the voltage and begin to flow. This flow of charges constitutes an electric current.

In part (a), where the current is increasing, the end of the inductor at the higher potential can be determined using Lenz's law. Lenz's law states that the induced electromotive force (EMF) in an inductor opposes the change in current through it.

When the current is increasing, the induced EMF in the inductor will try to oppose this increase. To achieve that, the end of the inductor where the potential is higher will be the one that is connected to the positive terminal of the power supply or the source driving the current.

Therefore, in part (a), the end of the inductor connected to the positive terminal of the power supply or the source will be at a higher potential.

In part (b) of the question, where the current is decreasing, the end of the inductor at the higher potential can be determined using the same logic. The induced EMF in the inductor will try to oppose the decrease in current. Consequently, the end of the inductor connected to the negative terminal of the power supply or the source will be at a higher potential.

Therefore, in part (b), the end of the inductor connected to the negative terminal of the power supply or the source will be at a higher potential.

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Answer: B  6.2 Hz

Explanation:  Equation for waves v = λf.

Frequency = speed / wavelength    f = v/λ

   f = 74 m/s / 12 m = 6.166... Hz

Answer:

Rounding is necessary: the answer is 6.2 Hz

Explanation:

Yes, a solenoid suspended by a string can be used as a compass when it carries a direct current. This is because the solenoid creates a magnetic field when current flows through it.                                                                                                                    

The magnetic field aligns with the Earth's magnetic field, causing the solenoid to point in the direction of magnetic north. However, if the current were alternating in direction, the solenoid would constantly change its orientation and would not be reliable as a compass.
This magnetic field interacts with Earth's magnetic field, causing the solenoid to align itself with the magnetic north and south poles, acting as a compass.
Consequently, a solenoid with an alternating current would not function effectively as a compass.

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Energy generated in the Sun's core takes approximately 100,000 to 200,000 years to reach the surface.

This process, called energy transport, occurs in three phases: radiation, convection, and photon random walk. In the radiative zone, energy travels as photons through radiation, followed by the convective zone, where energy moves via convection currents. Lastly, the photon random walk includes countless photon collisions, slowing down their movement.

Upon reaching the surface, energy is emitted as light and heat, taking just 8 minutes and 20 seconds to reach Earth.

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A new wave created by the destructive interference of two waves is produced. The new wave is accurately described in statement A. Its amplitude is greater than that of the waves that produced it.

Destructive interference happens when the maxima of two waves are 180° out of phase; a positive displacement of one wave is canceled exactly by a negative displacement of the other wave.

Two or more waves combining to produce a wave with a smaller displacement is called destructive interference.

Two waves overlap producing a new wave that exhibits destructive interference. It has a larger amplitude than the waves that overlapped to produce it.

Hence, statement A correctly describes the new wave.

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Answer:

30 celsius

Explanation:

30 celsius = 86 fahrenheit

A) Using Simpson's 1/3 rule (composite formula), the work done with a constant force of 200 N is approximately 1250 J.

B) Using the MATLAB function trapz, the work done is approximately 7750 J.

Let's substitute the given values into the Simpson's 1/3 rule formula and calculate the work done using a constant force of 200 N.

A) Force (F) = 200 N (constant for all t)

Velocity (v) = 4t (0 ≤ t ≤ 5) and v = 20 + (5 - t)² (5 ≤ t ≤ 15)

Step size (h) = 0.25

To find the work done using Simpson's 1/3 rule (composite formula), we need to evaluate the integrand at each interval and apply the formula.

Step 1: Divide the time interval [0, 15] into subintervals with a step size of h = 0.25, resulting in 61 equally spaced points: t0, t1, t2, ..., t60.

Step 2: Calculate the velocity at each point using the given expressions for different intervals [0, 5] and [5, 15].

For 0 ≤ t ≤ 5: v = 4t For 5 ≤ t ≤ 15: v = 20 + (5 - t)²

Step 3: Compute the force at each point as F = 200 N (since the force is constant for all t).

Step 4: Multiply the force and velocity at each point to get the integrand.

For 0 ≤ t ≤ 5: F * v = 200 * (4t) For 5 ≤ t ≤ 15: F * v = 200 * [20 + (5 - t)²]

Step 5: Apply Simpson's 1/3 rule formula to approximate the integral of the integrand over the interval [0, 15].

The Simpson's 1/3 rule formula is given by: Integral ≈ (h/3) * [f(x0) + 4f(x1) + 2f(x2) + 4f(x3) + 2f(x4) + ... + 4f(xn-1) + f(xn)]

Here, h = 0.25, and n = 60 (since we have 61 equally spaced points, starting from 0).

Step 6: Multiply the result by the step size h to get the work done.

Work done: 1250 J

B) % Define the time intervals and step size

t = 0:0.25:15;

% Calculate the velocity based on the given expressions

v = zeros(size(t));

v(t <= 5) = 4 * t(t <= 5);

v(t >= 5) = 20 + (5 - t(t >= 5)).^2;

% Define the force value

F = 200;

% Calculate the work done using MATLAB's trapz function

\(work_t_r_a_p_z\) = trapz(t, F * v) * 0.25;

% Display the result

disp(['Work done using MATLAB''s trapz function: ' num2str(\(work_t_r_a_p_z\)) ' J']);

The final answer for the work done using MATLAB's trapz function with the given force and velocity is:

Work done using MATLAB's trapz function: 7750 J

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Oh, yes.  It's definitely true.

The answer to your question is:  

Because the Earth has something like (6 x 10²⁴) times as much mass as the apple has.

So when equal, opposite gravitational forces act on both of them, the apple's downward acceleration toward the Earth is something like  (6 x 10²⁴) times as much as the Earth's upward acceleration toward the apple.

The apple doesn't spend too much time falling, before it hits the ground and both bodies stop moving toward each other.  In that time, the apple travels something like  (6 x 10²⁴) times farther than the Earth does.

So if the apple falls a mile down from the branch of the tree, then the Earth moves something like 0.000 000 000 000 000 000 011 inch up toward it.

THAT's why Earth's motion is not noticeable to us.  

The Big Bang Theory is an example of the universe originated from the explosion and expansion of all matter and energy

The Big Bang Theory is the way that astronomers explain how the universe began as a tiny, dense, fireball that exploded 13.8 billion years ago. It includes Albert Einstein's general theory of relativity along with standard theories of fundamental particles.

The theory was born of the statement that other galaxies are moving away from our own at countless speed in all directions, as if they had all been forced by an ancient explosive force.

The solar system is the gravitationally bound system of the sun, the objects that orbit it or travel around the sun. It consists of an average star (sun), the planets (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto) and their moons, dwarf planets and countless asteroids, comets, and other small icy objects.

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Answer:

B

Explanation:

this is because the neutrons do not have a charge, the things that have charge in an atom are electrons and protons.

and in the nucleus of an atom, there are protons and neutrons so you can see that A is not the answer

if you see the periodic table, you will know that the number of electrons and protons are equal, so the charges cancel each other out, hence the charge of an atom will be neutral

let me give you a tip which I got from my teacher, never write there is no charge in the atom, this suggests that there is no protons or electrons.

instead, write, the it is neutral

hope it helps if not please report it so that someone else gets to try it out

The separation between the pennies is approximately \(7.86 *10^6\) meters.To find the separation between the pennies, we need to use the formula for the electrostatic force of attraction between two charged objects:
F = \((k * |q1 * q2|) / r^2\)
Where:
- F is the force of attraction
- k is the electrostatic constant (\(9* 10^9 Nm^2/C^2\))
- q1 and q2 are the charges of the pennies (in this case, the number of electrons transferred)
- r is the separation between the pennies
Given that the mass of a copper penny is 3.0 g, we can convert it to kilograms by dividing by 1000: 3.0 g = 0.003 kg
The weight of the penny is the force due to gravity acting on it, which can be calculated using the formula:
W = m * g
Where:
- W is the weight
- m is the mass
- g is the acceleration due to gravity (9.8 m/\(S^2\))
So, the weight of the penny is:
W = 0.003 kg * \(9.8 m/s^2\) = 0.0294 N
Since the electrostatic force of attraction between the pennies is equal to the weight of a penny, we can equate the two:
F = W
Now we can solve for the separation between the pennies:
(k * |q1 * q2|) / \(r^2\) = W
Substituting the given values:
\((9 * 10^{9} Nm^{2}/C^{2} * 4.0 × 10^{12} * 4.0 × 10^{12}) / r^2\) = 0.0294 N
Simplifying the equation:
\((9 * 10^9 Nm^2/C^2 * (4.0 × 10^{12})^{2}) / r^2\) = 0.0294 N
Solving for \(r^2\):
\(r^2 = (9 * 10^9 Nm^2/C^2 * (4.0* 10^{12})^{2}) / 0.0294 N\)
Taking the square root of both sides to find r:
r = √[(9 × \(10^9 Nm^2/C^2 * (4.0 * 10^{12})^{2})\) / 0.0294 N]
Calculating the value gives:
r ≈ \(7.86 * 10^6\)meters
Therefore, the separation between the pennies is approximately \(7.86 *10^6\) meters.

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The power dissipated in the internal resistance of the battery is equal to the product of the current flowing through the battery and the voltage drop across the internal resistance.

Every battery has an internal resistance, which causes a voltage drop when current flows through the battery. This voltage drop results in a loss of energy in the form of heat, which is known as the power dissipation in the internal resistance of the battery.

The amount of power dissipated in the internal resistance is directly proportional to the current flowing through the battery and the internal resistance. The higher the current and internal resistance, the more power is dissipated, which can reduce the overall efficiency of the battery and shorten its lifespan.

To maximize the efficiency of a battery, it is important to minimize its internal resistance and choose a battery with low internal resistance.

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The question that would allow a student to determine if a wave was an

electromagnetic wave are:

Option A and C are the correct options.

The question that would allow a student to determine if a wave was an

mechanical waves are:

Option B and D are the correct options.

This refers to a wave that has the ability to transmit its energy through a vacuum. Mechanical waves need a medium in order to send their energy from one location to another. An example of a mechanical wave is sound wave.

This refers to waves that are made as a result of vibrations between an electric field and a magnetic field.   Electromagnetic waves are made up of oscillating magnetic and electric fields.

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Kinetic Friction, or Sliding Friction, is the friction between skates and ice. When two items slide past each other, this form of friction develops.

Sliding Friction is created when the skate blade passes through the ice. The beautiful curves are governed by the second law. Acceleration is required for a change in velocity, which includes both speed and direction. Because of the constantly changing direction, traveling in a circle at a constant speed includes acceleration. Because everyone is initially at rest, the system's linear momentum is zero. Because there is no external force acting on the system when the guy throws the ball, linear momentum must be conserved.

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Answer:

D) 42.87 m/s

Explanation:

First, find the time it takes him to land.  Given in the y direction:

Δy = 60 m

v₀ = 0 m/s

a = 9.8 m/s²

Find: t

Δy = v₀ t + ½ at²

60 m = (0 m/s) t + ½ (9.8 m/s²) t²

t = 3.5 s

Next, find the speed needed to travel the horizontal distance in that time.  Given in the x direction:

Δx = 60 m

a = 0 m/s²

t = 3.5 s

Find: v₀

Δy = v₀ t + ½ at²

150 m = v₀ (3.5 s) + ½ (0 m/s²) (3.5 s)²

v₀ = 42.87 m/s

The total charge on both balloons is -40 nc.

Therefore, the wool sweater must have acquired a positive charge of +40 nc in order to keep the net charge of the system at zero.

An electrically neutral wool sweater and two balloons are rubbed on it. Subsequently, each balloon has a net charge of -20 nc. A wool sweater and two balloons are electrically neutral, so the total initial charge is zero. When the balloons are rubbed on the wool sweater, the electrons flow from the sweater to the balloons, causing each balloon to acquire a negative charge of -20 nc (where nc stands for nano coulombs). The total charge on both balloons is -40 nc.

Therefore, the wool sweater must have acquired a positive charge of +40 nc in order to keep the net charge of the system at zero. This is because the total charge on an isolated system must always be conserved, which means that the final charge must equal the initial charge.

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The school of psychology that emphasizes direct observation rather than introspection is behaviorism.

The central tenet of behaviorism is that all actions are acquired through observation of the environment. According to this learning theory, behaviors are acquired through interaction with one's environment, and that characteristics that are innate or hereditary have very little bearing on an individual's behavior.

Teachers rewarding their school or particular pupils with a party or special gift at the end of the week for excellent behavior throughout the week is an example of behaviorism. Punishments utilize the same idea. If the student misbehaves, the teacher has the authority to revoke some rights.

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Answer:

system

Explanation:

they are all put together as one, and they are a group

Answer:

its true since i already did this last year, if i am wrong i apologize

Explanation:

Answer:

Newton's second law of motion is F = ma, or force is equal to mass times acceleration.

The following measuring tools can the student use to test the validity of the claim

a. Photogates placed at the beginning, end, and at various locations along the track that the car travels on.

b. A meterstick to measure the distance of the track that the car travels on.

The discipline or branch of science known as physics can be defined as the study of the nature and qualities of matter, motion, and energy with respect to space, force, and time.

In this case, a pupil receives a battery-operated toy car from the manufacturer that is guaranteed to constantly travel at a set pace. To verify the truth of the assertion, the student must devise an experiment.

The following measuring devices should be used by the student in order to verify the veracity of the assertion:

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Answer:

B. A hill 70ft tall.

Explanation:

The vertical distance as the object was raised is 40 m.

This is the distance between two vertical positions in space. Vertical distance can also be called height.

To calculate the vertical distance at which the object was raised, we use the formula below.

Formula:

Where:

Make d the subject of the equation.

From the question,

Given:

Substitute these values into equation 2

Hence, the vertical distance as the object was raised is 40 m.

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Answer:

38.775N

Explanation:

A=(f-i)/t, where a=acceleration, f=final velocity, i=initial velocity, and t=time

A=(0-47)/0.2

A=-47/0.2

A=-235m/s^2

Use that acceleration and plug it into this equation

F=ma

F=0.165*-235

F=-38.775N

The glove exerts an equal and opposite force on the ball of 38.775N of force.

The theorem used to obtain the integral (control volume) form of the linear momentum equation is the Reynolds Transport Theorem (RTT).

The Reynolds Transport Theorem (RTT) is used to derive the integral form of the linear momentum equation for a control volume. RTT connects the Lagrangian and Eulerian descriptions of fluid motion by considering a control volume in the fluid domain. It expresses the conservation laws (mass, momentum, and energy) in terms of extensive properties (total mass, linear momentum, and total energy) and intensive properties (density, velocity, and specific energy) of the fluid.

By applying RTT to the linear momentum principle, we obtain the integral form of the linear momentum equation, which describes the balance between the rate of change of linear momentum and the net force acting on the control volume.

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The change of velocity is from 18.5 to 46.1 m/s or 46.1 - 18.5 = 27.6 m/s. The time of change is 2.47 s. So the acceleration is 27.6 m/s / 2.47 s = 11.17 m/s^2. The distance traveled is average velocity times time of travel.