Which of the following actions, if done independently; would increase the maximum height reached by the ball?

a. reducing the spring constant k
b. increasing the spring constant k
c. decreasing the distante the spring is compressed
d. increasing the distance the spring is compressed
e. decreasing the mass of the ball

Answer:

a. slope=rise/run

rise=2

run=10

slope=2/10

slope=1/5

used point (0,0) and (10,2)

slope(m)=1/5

b. area= 0.5bh

0.5×50s×10m/s

a=25s×10m/s

a=250m

c.the area represents the total distance traveled after 50s by the toy

the slope represents the acceleration of the toy

the unit of slope is m/s²

slope=rise/run

slope(m)=(2m/s)÷10s

m=(2/10)m/s/s

m=(1/5)m/s²

.=0.2m/s²

please mark brainliest

Answer:

7. free fall -- h. 9.8m/s^2

3. Velocity -- x. 60 km/hr west

6. Acceleration -- d. change in velocity/time

8. Centrifugal --  s. towards the centre

13. Work done --w. Force * displacement

5. Uniform circular motion --j. spin cycle in washer

18. Power -- r. kW an hour

7. g -- a. 10N

hope this helps

Answer:

When a body moves along a straight line with uniform speed or steady speed is called Uniform motion. When a body moves along a straight line but with variable or change in speed is called non-uniform motion.Hope this answer helps.

Answer:

. When a body moves along a straight line with uniform speed or steady speed is called Uniform motion. When a body moves along a straight line but with variable or change in speed is called non-uniform motion

Answer:

140 °C in °F is 284 °F

140 °C is calculated to be equal to 284 °F. The formula that can be used to convert a temperature from Celsius (°C) to Fahrenheit (°F) is: °F = (°C * 9/5) + 32

1 degree Celsius is equal to 33.8 degrees Fahrenheit by multiplying the temperature in degrees Celsius by 1.8 and then adding 32.

You can use formula below to convert temperature from Celsius (°C) to Fahrenheit (°F):

°F = (°C * 9/5) + 32

Given value is 140 °C

°F = (140 * 9/5) + 32

So, °F = 284 °F

Thus, 180 °C is the same as 284 °F.

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The resonant frequencies for an open organ pipe of fixed length L is  f = nv/2L

Resonant frequencies are those frequencies at which an object vibrates with maximum amplitude when it is set into vibration. In the case of an open organ pipe of fixed length L, the resonant frequencies can be determined using the formula f = nv/2L, where f is the frequency, n is the harmonic number, v is the speed of sound and L is the length of the pipe.

For the first harmonic, n=1, the frequency is f1= v/2L. For the second harmonic, n=2, the frequency is f2= 2v/2L = v/L. For the third harmonic, n=3, the frequency is f3= 3v/2L. Thus, the resonant frequencies of an open organ pipe of fixed length L are given by the multiples of the fundamental frequency f1.

In conclusion, the resonant frequencies of an open organ pipe of fixed length L can be determined using the formula f = nv/2L, where n is the harmonic number. The first harmonic is the fundamental frequency, and the resonant frequencies are given by multiples of the fundamental frequency. This is important to consider when designing and playing musical instruments such as organs.

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Answer:

I know someone that has the answer

Explanation:

A

Answer:

1)  10 kg-m/s

2)  2 kg

3)  20 m/s

Explanation:

The momentum of an object can be calculated using the equation:

\(\large\boxed{p=mv}\)

where:

\(\hrulefill\)

For this question we need to find the momentum of a bowling ball whose mass is 4.0 kg is rolling at a rate of 2.5 m/s.

Given values:

Substitute the given values into the momentum formula and solve for p:

\(p=4.0\;\text{kg} \cdot 2.5\;\text{m/s}\)

\(p=10\;\text{kg m/s}\)

Therefore, the momentum of the bowling ball is 10 kg-m/s.

\(\hrulefill\)

For this question we need to find the mass of a skateboard rolling at a velocity of 3.0 m/s with a momentum of 6.0 kg-m/s.

Given values:

As we want to find mass, rearrange the momentum formula to isolate m:

\(\large\boxed{m=\dfrac{p}{v}}\)

Substitute the given values into the formula and solve for m:

\(m=\dfrac{6.0\; \text{kg m/s}}{3.0\; \text{m/s}}\)

\(m=2\;\text{kg}\)

Therefore, the mass of the skateboard is 2 kg.

\(\hrulefill\)

For this question we need to find the velocity of a baseball with a mass of 0.5 kg and a momentum of 10 kg-m/s.

Given values:

As we want to find velocity, rearrange the momentum formula to isolate v:

\(\large\boxed{v=\dfrac{p}{m}}\)

Substitute the given values into the formula and solve for v:

\(v=\dfrac{10\; \text{kg m/s}}{0.5\; \text{kg}}\)

\(v=20\;\text{m/s}\)

Therefore, the velocity of the baseball is 20 m/s.

Explanation:

Microwave sources include artificial devices such as circuits, transmission towers, radar, masers, and microwave ovens, as well as natural sources such as the Sun and the Cosmic Microwave Background. Microwaves can also be produced by atoms and molecules.

Answer:

Stars, including the Sun, are natural microwave sources.

Explanation: Under the right conditions, atoms and molecules can emit microwaves. Man-made sources of microwaves include microwave ovens, masers, circuits, communication transmission towers, and radar. Either solid state devices or special vacuum tubes may be used to produce microwaves.

Answer:

50%

Explanation:

If a light bulb uses 60J of electrical energy and produces 30 J of light energy, the percent efficiency of the light bulb is 50%.

The total amount of beneficial work accomplished, excluding waste and spoilage, is known as output or work output.

This pulp creates 30 jewels' worth of light energy, for a total of 60 jewels. So that's the energy output. Let's use E. O. to symbolize it. Those are 30 Jews.

Additionally, we must calculate the light bulb's efficiency %. Therefore, we will start by computing the efficiency, which is defined as the ratio of energy output to energy input in this book.

And 30/60 is the efficiency that we obtain. Moreover, this is 1 x 2.

The straightforward ratio between output and input energy—by 100. And the result is that this is 50%. That is the required efficiency percentage for this light bulb.

Therefore, the percent efficiency of the light bulb is 50%

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Answer: hey

Explanation:

To calculate the potential difference, we can use the de Broglie wavelength equation, λ = h / √(2meV), where λ is the de Broglie

wavelength, h is Planck's constant, me is the mass of the electron, and V is the potential difference. Rearranging the equation, we have V = (h^2) / (2me(λ^2)). Plugging in the given values (λ = 700 nm, h = 6.626 x 10^-34 J·s, me = 9.10938356 x 10^-31 kg), we can solve for V. Converting the wavelength to meters (700 nm = 7 x 10^-7 m) and substituting the values, we find V ≈ 51.7 volts.

To find the potential difference, we use the de Broglie wavelength equation, λ = h / √(2meV), where λ is the de Broglie wavelength, h is Planck's constant, me is the mass of the electron, and V is the potential difference. Rearranging the equation, we have V = (h^2) / (2me(λ^2)). Plugging in the given values (λ = 700 nm, h = 6.626 x 10^-34 J·s, me = 9.10938356 x 10^-31 kg), we can solve for V. Converting the wavelength to meters (700 nm = 7 x 10^-7 m) and substituting the values, we find V ≈ 51.7 volts. Therefore, an electron needs to be accelerated through a potential difference of approximately 51.7 volts to have a de Broglie wavelength of 700 nm.

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Answer:

I believe it is October 1st, October 2rd or October 3rd because it says "approximate date".

Explanation:

Here's Why:

The whole Synodic Period(All Lunar Phases) takes around 29.5 days you can round it to 30 if it's necessary. To know the time for each phase just divide the total amount of days the Synodic Period lasts to finish (29.5) by the amount of phases of the moon(8). The answer is 3.69 days each phase. Now it's common sense and basic math to know when was the last waxing crescent. if the Waning Crescent is on the 24th then count how many phases are between the waning crescent and waxing crescent there should be 6 phases(without counting the original phase, but count the phase you are looking for). So now 3.69 x 6= 22.14 I suggest to round it to 22. And now the basic math part 24-22= 2. Therefore the last waxing crescent was in October 2nd, But, some assignments might make it the 3rd or 1st because it says "approximate date". Hope it Helped

When you rub a balloon against your head, electrons from the atoms in your hair are transferred to the balloon. This causes the balloon to become negatively charged, while your hair becomes positively charged. If you then place the balloon near your hair, the negative charge of the balloon will be attracted to the positive charge of your hair, causing the two to stick together. This phenomenon is known as electrostatic attraction.

The attraction of the negative charge of the balloon to the positive charge of your hair creates a strong force that causes the two objects to stick together. This force is known as the electrostatic force of attraction. It is the same force that makes two magnets stick together when their poles are placed near each other. The attraction between the balloon and your hair will remain until the charge on the balloon is dissipated by contact with another object.

To demonstrate this force of attraction, you can try rubbing the balloon against your head and then holding it near your hair. You will notice that the balloon will become attracted to your hair and will stick to it. You can also experiment with other materials that become charged when rubbed together, such as a cloth and a comb.

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The bandwidth of the periodic composite signal is drawn as a range between 100 Hz and 2100 Hz , The data rates for sending a digital signal using one harmonic, three harmonics, and five harmonics on a TV channel with a 6 MHz bandwidth would be 6 MHz, 18 MHz, and 30 MHz .

For the first question

Draw the bandwidth of a periodic composite signal, we need to consider the highest frequency component present in the signal.

We have two sine waves one with a frequency of 100 Hz and the other unspecified. Since the bandwidth is given as 2000 Hz, we can assume that the second sine wave has a frequency of 2100 Hz (2000 Hz above the first sine wave frequency).

Draw the bandwidth, we can create a graph with frequency on the x-axis and amplitude on the y-axis.

We plot the amplitude values for the two sine waves at their respective frequencies (100 Hz and 2100 Hz). The bandwidth will be the range between these two frequencies on the x-axis.

For the second question

The data rate for a digital signal transmitted using one harmonic, three harmonics, and five harmonics can be calculated by multiplying the channel bandwidth by the number of harmonics used. Since the bandwidth is given as 6 MHz, the data rates would be as follows:

One harmonic: 6 MHz

Three harmonics: 18 MHz

Five harmonics: 30 MHz

The data rate increases with the number of harmonics used because each harmonic contributes additional information to the signal, allowing for a higher data transmission rate.

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When a ferromagnetic material is placed in an electromagnetic coil and a magnetic field is applied, the magnetic induction (B) is increased.

Therefore, the correct answer is:

(a) There is a large increase in the magnetic induction (B)

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Answer:

Following are the answer to this question:

Explanation:

The wave is propagating at the incident wave which focuses on the stretchy and rotational inertia features of the whole medium via a material system.  For both the mechanical waves there are many two basic types of incident waves: quality management program and transverse waves.

The rumor is also known as the "Norman Rockwell", in which the environment of some of the greatest physics attempts of our time, it pays to remain suspicious when remarkable reports of historical findings are made on social media.

Answer:

Photodiodes are used in consumer electronics devices such as compact disc players, smoke detectors, medical devices and the receivers for infrared remote control devices used to control equipment from televisions to air conditioners. For many applications either photodiodes or photoconductors may be used.

We have that the height is mathematically given as

From the question we are told

Generally the equation for the Height  is mathematically given as

\(P.E=E_{sp}\\\\Where\\\\E=\frac{1}{2}*(4*110^3)(0.25)^2\\\\E_{sp}=125J\\\\Therefore\\\\mgh=125\\\\h=\frac{125}{1.5*9.8}\)

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The maximum height to which the device will launch the object is 8.5 m.

The spring's elastic potential energy is equal to the potential energy of the object.

The maximum height of the object can be calculated using the formula below.

Formula:

Where:

Make h the subject of the equation

From the question,

Given:

Substitute these values into equation 2

Hence, The maximum height to which the device will launch the object is 8.5 m.

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Answer:

10 mph

Explanation:

it just common sense

Answer:

The answer is C. Series.

Answer:

b: density decreases

e: volume increases

Explanation:

When the water changes to ice, there won't be a loss of water, so the mass will be the same. However the ice will occupy more space, so the volume will increase. Then, since density is the mass divided by the volume, if the volume increase and the mass stays the same, the density decreases.

So, the answers are:

b: density decreases

e: volume increases

The total distance, side to side, that the top of the building moves during the oscillation is approximately 0.492 meters.

To find the total distance that the top of the building moves during an oscillation, we can use the formula for the amplitude (A) of simple harmonic motion:

A = (acceleration of the top) ÷ \(angular frequency^{2}\)^2

The angular frequency (ω) can be calculated using the formula:

ω = 2πf

Where f is the frequency.

In this case, the frequency (f) is given as 0.15 Hz, and the acceleration of the top of the building is 2.4% of the free-fall acceleration.

First, let's calculate the angular frequency:

ω = 2π × 0.15 Hz

ω ≈ 0.94248 rad/s

Now, we can calculate the amplitude:

A = (0.024 g) ÷ (ω^2)

Where g is the acceleration due to gravity (approximately 9.8 m/s²).

A = (0.024 × 9.8 m/s²) ÷ (0.94248 rad/\(s^{2}\))

A ≈ 0.246 m

The amplitude represents half of the total distance traveled during the oscillation. To find the total distance side to side, we multiply the amplitude by 2:

Total distance = 2 A

Total distance ≈ 2 * 0.246 m

Total distance ≈ 0.492 m

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Answer:

Mac’s Speed = 2.5 m/s

Tosh’s Speed = 4 m/s

Tosh moves 1.5 m/s faster than Mac.

Explanation:

Tosh starts from an initial position of 12m and in a span of 3 seconds, (1.00 seconds to 4.00 seconds) he moves 12 meters.

So his speed is distance / time

s = 12 / 3

s = 4 m/s

Mac starts from an initial position of 2m and in a span of 4 seconds, he traveled 10m (2.00m to 12.00m).

Speed = Distance / time

s = 10 / 4

s = 2.5 m/s

Answer:

The answer is A

Explanation:

Solids vibrate in a fixed arrangiment, so to find which is a solid look for the one that vibrates in a fixed arrangiment.

According to the forces of attraction, the question which would best identify model is in solid phase is which model shows the molecules vibrating in a fixed arrangement?

Forces of attraction  is a force by which atoms in a molecule  combine. it is basically an attractive force in nature.  It can act between an ion  and an atom as well.It varies for different  states  of matter that is solids, liquids and gases.

The forces of attraction are maximum in solids as  the molecules present in solid are tightly held while it is minimum in gases  as the molecules are far apart . The forces of attraction in liquids is intermediate of solids and gases.

The physical properties such as melting point, boiling point, density  are all dependent on forces of attraction which exists in the substances.

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Answer:

\(v = 0.25m/s\)

Explanation:

Given

\(\lambda = 0.02m\) --- Wavelength

\(T = 8.0 * 10^{-2}s\) --- Period

Required

Determine the velocity of the wave

This is calculated using:

\(v = \frac{\lambda}{T}\)

\(v = \frac{0.02m}{8.0*10^{-2}s}\)

\(v = \frac{0.02m}{8.0*0.01s}\)

\(v = \frac{0.02m}{0.08s}\)

\(v = 0.25m/s\)

Hence, the velocity is 0.25m/s

Answer:

A) 250 J

B) 150 J

C) The efficiency = 0.6 and the percentage efficiency = 60%

Explanation:

The question relates to definition of terms in energy transfer and the calculation of efficiency

The parameters of the given are;

The energy the object transfers = 150 J

The amount of electrical energy supplied to the motor = 250 J

Therefore, we have;

A) The total energy supplied to the motor = The amount of electrical energy supplied to the motor = 250 J

B) The useful energy transferred = The energy used to do work = 150 J

C) The efficiency = (Useful energy transferred (out))/(Total energy supplied (in)

\(The \ efficiency = \dfrac{Useful \ energy \ transferred \ (out)}{Total \ energy supplied \ (in)} = \dfrac{150 \, J}{250 \, J} = 0.6\)

The percentage efficiency is given as follows;

\(The \ percentage \ efficiency = \dfrac{Useful \ energy \ transferred \ (out)}{Total \ energy supplied \ (in)} \times 100\)

\(\therefore The \ percentage \ efficiency = \dfrac{150 \, J}{250 \, J} \times 100 = 0.6 \times 100 = 60\%\)

Answer:

A) 250 J

B) 150 J

C) efficiency = 0.6, percentage efficiency = 60%

Explanation:

The correct answer is B. According to Newton's law of universal gravitation, the gravitational force between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

In simpler terms, as objects get closer together, the gravitational force between them increases.

When the distance between two objects decreases, the denominator of the equation (distance squared) becomes smaller, resulting in a larger force. Conversely, when the distance increases, the denominator becomes larger, resulting in a smaller force.

It is important to note that the mass of an object does not directly affect the strength of the gravitational force between two objects. However, a higher mass will lead to a greater gravitational force when compared to a lower mass, but only because the force is being exerted on a more massive object. The mass of an individual object doesn't directly affect the gravitational force it experiences from another object. option B

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The atomic radius of copper is approximately 128 picometers (pm).

The atomic radius of an element is defined as half the distance between the nuclei of two identical adjacent atoms in a molecule. In the case of metallic copper, the copper atoms are arranged in a crystal lattice, and the distance between two adjacent copper atoms in the lattice is known as the interatomic distance or lattice parameter.

We are given that the distance between two adjacent copper atoms in metallic copper is 256 pm. Since this is the distance between the nuclei of two adjacent atoms, the sum of the atomic radii of the two copper atoms is equal to 256 pm.

Therefore, the atomic radius of copper can be calculated as follows:

Atomic radius of Cu = (interatomic distance between adjacent Cu atoms) / 2

Atomic radius of Cu = 256 pm / 2

Atomic radius of Cu = 128 pm

Hence, the atomic radius of copper is approximately 128 picometers (pm).

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Answer:

Explanation:

The force acting on the blimp can be found by using the formula

p is the pressure

a is the area

3000 cm² = 0.3 m²

From the question we have

f = 506 × 0.3

We have the final answer as

Hope this helps you

The potential energy of a body of mass 3 kg on the surface of a planet is 54 joule.

potential energy, stored energy that depends upon the relative position of various parts of a system. A spring has more potential energy when it is compressed or stretched. A steel ball has more potential energy raised above the ground than it has after falling to Earth.

Potential energy is technically stored within matter, though a force must be applied to an object in order for it to store potential energy. However, while the energy itself is stored in the mass of the object, another force (gravitational or elastic) must be present to release the potential energy.

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