(Before I ask my question, it's not physics btw idk what it is it's just science)

Since kinetic energy depends on mass and speed, will a 300-pound baseball player hit the ball farther than a 100-pound baseball player? EXPLAIN

Assume the following conditions in this scenario:

1. The bat is identical in mass and weight for both players

2. both players swing the bat with the same velocity

3. The weather conditions are identical for both players (wind, climate etc..)

4. both players meet the ball squarly so as to hit the ball in the same place for the best outcome

Answer:

240 N

Explanation:

F = m * a

  = 20 kg * 12 m/s^2 = 240 N

The pressure of ammonia inside the flask is 6.823 atm.

To calculate the pressure of ammonia inside the flask, we can use the Ideal Gas Law equation:
PV = nRT

Where:
P = Pressure in atmospheres (atm)
V = Volume in liters (L)
n = Moles of gas (mol)
R = Gas constant (0.0821 L·atm/mol·K)
T = Temperature in Kelvin (K)

First, we need to convert the temperature from Celsius to Kelvin:

125.8 °C + 273.15 = 398.95 K

Next, we can plug in the values we have:

(unknown pressure) x 2.2 L = 0.500 mol x 0.0821 L·atm/mol·K x 398.95 K

Simplifying:

(unknown pressure) = (0.500 mol x 0.0821 L·atm/mol·K x 398.95 K) / 2.2 L

(unknown pressure) = 6.823 atm

Therefore, the pressure of ammonia inside the flask is 6.823 atm.

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Refraction results from differences in light's speed. The correct answer is C) speed.

Refraction is the term for the bending of light as it passes through transparent materials (it also occurs with sound, water, and other waves). We are able to create lenses, magnifying glasses, prisms, and rainbows because to this bending caused by refraction.

Refraction occurs when light passes through different mediums and changes its speed. This change in speed causes the light to bend, creating the effect of refraction.

This is why objects appear to be in different positions when viewed through water or a lens. The frequency and incident angles of the light do not affect refraction, only the speed of the light does.

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Answer:

.30 kg mass moving at 1.0 m/s

Explanation:

Well if the 30 mass isn't moving, then that isn't momentum. But if the .30 kg of mass if moving, then that would be momentum. So the correct answer is .30 kg of mass

Answer:

a 0.30 kg mass moving at 1.0 m/s

Explanation:

p = mv

Momentum is the product of mass and velocity. Since a stationary object has velocity=0, it has momentum=0*mass=0

An object with positive mass and nonzero velocity will always have positive momentum, so we could stop here.

An object with m=0.3kg and v=1m/s has

p = mv = 0.3kg * 1m/s = 0.3kg*m/s

which is more than 0.

The spring constant of each individual spring is approximately 588 N/m.

To find the spring constant of the combination, we can use Hooke's Law, which states that the force exerted by a spring is directly proportional to the displacement of the spring from its equilibrium position. The equation for Hooke's Law is given as:

\(F = -kx\)

Where F is the force applied to the spring, k is the spring constant, and x is the displacement from the equilibrium position.

For the combination of springs, we can treat them as a single spring with an equivalent spring constant. Since the springs are hooked end to end, the total displacement of the combination is the sum of the individual displacements.

Given that the combination of springs stretches 0.15 m beyond its relaxed length with a 6.0-kg brick, we can calculate the spring constant of the combination using the formula:

\(F = k_combined * x_combined\)

Where F is the weight of the brick (mg) and x_combined is the total displacement of the combination.

\(F = (6.0 kg) * (9.8 m/s^2) = 58.8 N\)

\(x_combined = 0.15 m\)

Therefore, we can rearrange the equation to solve for the spring constant of the combination:

\(k_combined = F / x_combined\)

\(k_combined = 58.8 N / 0.15 m ≈ 392 N/m\)

The spring constant of the combination is approximately **392 N/m**.

Now, let's calculate the spring constant of each individual spring. Since the top spring stretches 0.10 m, we can use the same equation:

\(k_top = F / x_top\)

\(F = (6.0 kg) * (9.8 m/s^2) = 58.8 N\)

\(x_top = 0.10 m\)

\(k_top = 58.8 N / 0.10 m = 588 N/m\)

The spring constant of each individual spring is approximately 588 N/m.

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Answer:

1. Peer Pressure: One of the negative reasons why some people join protest actions is peer pressure. This is the pressure exerted on an individual by their peers or social group to participate in a protest or rally even if they do not fully understand the cause or issues behind it. In such cases, these individuals might feel compelled to participate because of the fear of being seen as outcasts or not being accepted by their group.

2. The Desire for Attention: Another reason why some people might join a protest action is the desire for attention or recognition. For some individuals, participating in a protest offers them the opportunity to be seen on social media or in the news, which can give them a sense of importance or relevance. Often, such individuals might not even care about the cause but are only interested in gaining attention.

3. Ideological Manipulation: A third negative reason why some people join protest actions is ideological manipulation. In some cases, individuals might be manipulated or brainwashed by an extremist group or political party to join a protest or rally. These individuals might be given false information or propaganda to believe that they are fighting for a noble or just cause when, in reality, they are being used as pawns for political or personal gains.

In conclusion, while protest actions are a legitimate form of expressing dissent and demanding change, these actions can also be hijacked by individuals who have negative motives for joining. Therefore, it is essential to critically evaluate the reasons behind one's participation in a protest action and ensure that it aligns with the genuine cause or issue at hand.

The only true statement about the toy car is " the toy does not approach the spring".

option A is the correct answer.

The acceleration of the car is calculated by applying Newton's second law of motion, which states that the force applied to an object is directly proportional to the product of mass and acceleration of the object.

F - Ff = 0

F = Ff

ma = μmg

a = μg

where;

a = 0.14 x 9.8 m/s².

a = 1.37 m/s²

The distance traveled by the car before stopping is calculated as follows;

v² = u² - 2as

where;

when the car stop's the final velocity, v = 0

0 = u² - 2as

2as = u²

s = u²/2a

s = ( 2² ) / ( 2 x 1.37 )

s = 1.5 m

Thus, the final distance travelled by the car is less than 3 m, hence the car did not come in contact with spring.

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To calculate the average speed of the car for the entire trip, the average speed of the car for the entire trip is 53.33 km/hour.

To calculate the average speed of the car for the entire trip, we need to use the formula:
Average speed = total distance / total time
So, the total distance traveled by the car is 100 km + 60 km = 160 km. And the total time taken by the car is 2.00 hours + 1.00 hour = 3.00 hours.
Now, we can substitute the values in the formula to get the average speed:
Average speed = 160 km / 3.00 hours
Average speed = 53.33 km/hour
Therefore, the average speed of the car for the entire trip is 53.33 km/hour.
The average speed of the car can be defined as the total distance covered by the car divided by the total time taken to cover that distance. In this case, the car traveled a distance of 100 km in 2.00 hours and an additional distance of 60 km in 1.00 hour. The total distance traveled by the car is 160 km, and the total time taken is 3.00 hours. By using the formula for average speed, we can calculate the average speed of the car to be 53.33 km/hour. This means that the car traveled at an average speed of 53.33 km/hour for the entire trip, which is the combined speed of both the distances covered. The average speed of a vehicle is an important factor in determining how quickly it can cover a given distance, and it is often used to compare the performance of different vehicles.

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Three factors that have an effect on the centripetal force are the mass of the object; its speed; the radius of the circle. Therefore speed increases the magnitude of the centripetal force acting on an object traveling in a horizontal, circular path

Centripetal force is the pressure on an item on a circular path that keeps the item shifting on the route. it's far usually directed in the direction of the middle and its value is constant, based totally on the mass of the item, its tangential speed, and the space of the object (radius) from the middle of the circular direction.

The centripetal force is proportional to the square of the rate, implying that a doubling of pace would require four times the centripetal pressure to keep the motion in a circle. because centripetal acceleration is tangential speed squared divided by way of the radius, and the tangential pace is increasing from relaxation, the centripetal acceleration should then be growing as properly.

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The minimum initial velocity needed by the stuntman in order to make it onto the air mattress is 5 m/s.

To obtain the answer to the question, we'll begin by calculating the time taken for the stuntman to get to the mattress. This can be obtained as follow:

Height (H) = 45 m

Acceleration due to gravity (g) = 10 m/s²

45 = ½ × 10 × t²

45 = 5 × t²

Divide both side by 5

\(t^{2} = \frac{45}{5}\\\\\)

t² = 9

Take the square root of both side

\(t = \sqrt{9}\)

Time (t) = 3 s

Distance of mattress from the building (s) = 15 m

15 = u × 3

Divide both side by 3

\(u = \frac{15}{3}\\\\\)

Therefore, the minimum initial velocity needed by the stuntman in order to make it onto the air mattress is 5 m/s.

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The total resistance is 420 ohm.

A circuit with resistive elements of 220, 100, 57, and 43 produce what total resistance  

 R= 220+ 100+ 57+ 43

    = 420 Ω

What is resistance and its types?

Resistance is a measure of the opposition to current flow in an electrical circuit also known as ohmic resistance or electrical resistance. Ohms are measured as resistance, symbolized by the Greek letter omega (Ω). The ratio of the applied voltage to the current through the material is then known as resistance.

What causes resistance?

An electric current flows when electrons move through a conductor, such as a metal wire. The moving electrons can collide with the ions in the metal. This makes it more difficult for the current to flow, and causes resistance.

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Answer:

I think your bones, muscles, and joints your welcome :)

Explanation:

Answer:

1. a 2.c 3 b

Explanation:

Answer:

3=b 2=c 1=a

Explanation:

Answer:

Dorsal side:B

Ventral side:D

Anterior end:A

Posterior end:C

Explanation:

The four regions of the earthworm are, A is the anterior end,B is the dorsal side, C is the posterior end, and D is the ventral side.

Earthworms are common soil dwellers who are both safe and useful. Earthworms help plants flourish by collapsing dead and decaying organic debris into rich humus soil.

They also aerate the soil and enhance flow by digging small canals and holes.

The four regions of the earthworm are;

A is the Anterior end

B is the Dorsal side

C is the Posterior end

D is the Ventral side

Hence all the regions are clearly defined with the help of digrame.

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Answer:

b

Explanation:

imagine urself on an elevator dont you feel lighter

Answer:

The mechanical advantage of a machine is always less than its velocity ratio.It is because mechanical advantage decreases due to the friction and weight of moving parts of the machine, but the velocity ratio remains constant.

Answer:

Exactly 0.03042 carbon-14 is remaining.

Roughly 0.03 Carbon-14 is remaining. (When/If Multiple Choice)

Explanation:

Not a physics question, this is chemistry, but I'll answer.

First, divide 17,000/5700 to find the t, or time.

t = 2.98245614 or 2.98.

If it originally contained .24 grams, and a half life means x/2,

you would use the formula x/2^p, with p being the number of half lives

(these variables are made up, you can use any you would like)

In 17,000 years, the palm fossil experienced 2.98 half lives.

Thus meaning, using our equation, we would find (.24)/2^2.98

This equals 0.030418784 carbon-14 remaining to be exact.

(For Multiple Choice, it may be required to round to For Multiple Choice, it may be required to round to 3, so .24/2/2/2 or .24/2=.12 then .06 then it equals :  .03 Carbon-14)

The efficiency of moving the box is 60%.

Given in the question

Force exerted by peter = 500 N

Force due to friction on box = 200 N

Distance Traveled by box = 3 meters

Now work done by the force is given by

Work Done = (Magnitude of Force) × (Distance traveled)

Let us find work done by each force,

Work done by peter

Work Done = (Magnitude of Force) × (Distance traveled)

Put in the value, we get

Work Done =500 × 3

Work Done by peter = 1500 J

Similarly, Work done by friction

Work Done = (Magnitude of Force) × (Distance traveled)

Put in the value, we get

Work Done =200 × 3

Work Done by Friction = 600 J

As we know the work done by friction force is always negative,

Work Done by Friction = -600 J

So, net Work done = Work Done by peter + Work Done by Friction

net Work done = 1500 - 600

Net Work done = 900 J

Now Efficiency = (Net work done/work done by peter) × 100

Put in the values, we get

Efficiency = (900/1500) × 100

Efficiency = (3/5) × 100

Efficiency = 300/5

Efficiency = 60 %

So, the efficiency of moving the box is 60%.

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vf = vi + at

vf = 0

a = - (to stop (deceleration))

input the value:

0 = 4 m/s -a.8

8a = 4

a = 0.5 m/s²

F = m.a

F = 75 kg x 0.5 m/s²

F = 37.5 N

The correct statement that describes how an electron always behaves in an electric field is:

A. An electron accelerates in the direction of the electric field.

When an electric field is present, the electron experiences a force in the direction of the field, and this force causes the electron to accelerate in the direction of the electric field. The acceleration is directly proportional to the strength of the electric field and inversely proportional to the mass of the electron.

The other statements (B, C, D, and E) are not correct:

B. An electron moves perpendicular to the direction of the electric field: This statement is incorrect because an electron in an electric field does not move perpendicular to the field. Rather, it moves in the direction of the electric field.

C. An electron moves along electric field lines in the direction of the electric field: This statement is not always correct. Electric field lines represent the direction of the electric field at any point in space, but electrons do not necessarily follow these lines. Electrons accelerate in the direction of the electric field, regardless of the orientation of the field lines.

D. An electron moves along electric field lines opposite the electric field: This statement is incorrect. Electrons move in the same direction as the electric field, not opposite to it.

E. An electron accelerates opposite the direction of the electric field: This statement is incorrect. The electron accelerates in the same direction as the electric field.

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The concept of escape velocity helps explain the lack of an atmosphere on the Moon, as its relatively low escape velocity allows gases to escape easily, preventing the development and maintenance of a significant atmosphere.

The concept of escape velocity helps explain the lack of an atmosphere on the Moon by considering the gravitational pull of the Moon and the speeds required for gases to escape its gravitational field.

Escape velocity is the minimum velocity an object needs to achieve in order to overcome the gravitational attraction of a celestial body and escape into space. It depends on the mass and radius of the celestial body. The Moon has a smaller mass and radius compared to Earth, resulting in a lower escape velocity.

The Moon's escape velocity is about 2.38 kilometers per second (km/s), significantly lower than Earth's escape velocity of 11.2 km/s. The low escape velocity of the Moon means that gases, such as the ones that make up an atmosphere, can easily reach the necessary speeds to escape into space.

As a result, the Moon is unable to retain a substantial atmosphere. Any gas molecules released into the Moon's environment due to processes like outgassing or impacts from space will gain sufficient energy from the Moon's weak gravitational pull and escape into space rather than being held close to the lunar surface.

Therefore, the concept of escape velocity helps explain the lack of an atmosphere on the Moon, as its relatively low escape velocity allows gases to escape easily, preventing the development and maintenance of a significant atmosphere.

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The questions asked impacts on the way that the millennials and the gen z relate with the social media.

How does your physical health affect your engagement on social media?

How does your physical health affect your confidence and self-image on social media sites?

Does your physical health have an impact on how motivated you are to participate in social media challenges and trends?

How does your physical well-being affect your capacity to keep up a regular social media presence?

How does maintaining a particular physical look on social media affect your general well-being?

Has your physical health affected the kind of social media material you prefer to consume and engage with?

How does your physical health affect your relationships and social interactions on social media platforms? Does physical health impact you? (MILLENNIALS)

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Answer:

50N increasing

Explanation:

it looks like we want the net force. this is the sum of all forces acting on the object. here the problem is extremely simplified and we are even given the values of force. this looks like the rocket is producing an upward force of 160 newtons. it also looks like maybe weight (gravity) and drag (air resistance) are producing downward force against the rocket. we can say those would be subtracting from the amount of upwards force. so 160-40-70=50N. since the force is positive that means we will still have a magnitude of force vector that points upward and so we will increase.

Helen adjusts the armature of an electric generator by increasing the number of coils around the iron core and hence increasing the current flow. Thus, option D is correct.

An armature is a winding electrical machine that carries an alternating current. An alternating current is the current that changes its direction for every half cycle. It is a device when current is passed, it rotates to produce torque in a generator. The armature is the conductor as it carries current and it also interacts with the magnetic flux.

The armature is a device that produces torque in addition to Electromotive force(e.m.f). When the wounded coil is further increased with a number of turns then the current flows through the generator increases.

Hence, the ideal solution is option D.

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An internet search to find information about the effects of electromagnetic fields on public health is highly dangerous to humans and other living organisms.

Electromagnetic fields may be defined as a combination of invisible electric and magnetic fields of force. They are typically generated by natural phenomena like the Earth's magnetic field but also by human activities, mainly through the use of electricity.

Electromagnetic fields highly impact numerous members of the public and have attributed a diffuse collection of symptoms to low levels of exposure to electromagnetic fields at home. Reported symptoms include headaches, anxiety, depression, nausea, fatigue, and loss of appetite.

Moderate to high Exposure to magnetic fields is strong enough can lead to dizziness, seeing light flashes, and feeling tingling or pain through stimulation of nerves. Exposure to radiofrequency fields that are strong enough can lead to the heating of body tissue, and result in damage to tissues and organs.

Therefore, an internet search to find information about the effects of electromagnetic fields on public health is well described above.

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Answer:

c) billions

Explanation:

there are more than 0 stars, because our sun is a star

and  there are more than one because the milky way has a lot of suns

there aren't infinite because the milky way is finite it has some volume and even you made the smallest star possible you wouldn't have infinite stars

so the only option is billions

The law of conservation of momentum states that when two or more bodies act on each other in an isolated system, their total momentum remains constant unless an external force acts on them. Therefore, it can neither be created nor destroyed.

m₁v₁ = m₂v₂

For the given question:

m₁ = mass of squid (36 kg)

v₁ = velocity of squid (3.5 m/s)

m₂ = mass of water (3.0 kg)

v₂ = velocity of water

Substitute the values:

36 × 3.5 = 3.0 × v₂

v₂ = 42 m/s

The maximum range:

R = (v₂)²/ g

where,

g = 9.8 m/s² and launch angle 45°

R = 3.5²/9.8

R = 1.25 m

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The complete question is as follows:

We've seen that squid can escape from predators by ejecting water. Some squid do this at the surface of the ocean, thus launching themselves into the air-a particularly effective escape strategy. Suppose a 36 kg squid (not including water) at rest at the surface of the water brings in and quickly ejects 3.0 kg of water to achieve a takeoff speed of 3.5 m/s; these are typical numbers.

At what speed does the squid eject the water?

If we ignore lift and drag forces as the squid flies through the air, what is the maximum horizontal range that the squid can achieve before splashing down?

The astronaut faces 1.71 rad/s angular velocity, 17.1 m/s linear velocity, 29.2 centripetal acceleration, 3 g's are experienced, and 2044 N of centripetal force. The torque experienced is zero

What is rotational motion?

An object is said to be in rotational motion when it is travelling in a circular route around a fixed axis. Centrifugal force is a radially outward force that the item experiences as a result of this motion.

The image given below explains the conversion. The torque is zero since there is no tangential force.

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Answer: 13 N

Explanation: You have to use F=m * g

A force acts on a body of mass 13 kg initially at rest The force acts for 10 seconds, and once it quits, the body covers 60 m in the next 6 seconds .  The force that acted on the body 13 N.

A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.

Given in the question,

Velocity = 60/6

Velocity = 10 m/sec

acceleration = Velocity / time

acceleration = 10/10

acceleration = 1 m/sec²

Force = mass. acceleration

Force = 13 . 1

Force = 13 N

A force acts on a body of mass 13 kg initially at rest The force acts for 10 seconds, and once it quits, the body covers 60 m in the next 6 seconds .  The force that acted on the body 13 N

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