A large bottle contains a number of medicinal tablets is 0.5kg. Calculate the number of tablets in the bottle?

The maximum height the projectile can reach is approximately 108.4 meters. To determine the maximum height of a projectile, we can analyze its vertical motion.

To determine the maximum height of a projectile, we can analyze its vertical motion. Given the initial speed (82.12 m/s) and launch angle (40 degrees), we can split the initial velocity into horizontal and vertical components.

The vertical component of the initial velocity is given by V0y = V0 * sin(angle), where V0 is the initial speed and angle is the launch angle. Therefore, V0y = 82.12 m/s * sin(40 degrees) ≈ 52.74 m/s.

Next, we can calculate the time it takes for the projectile to reach its maximum height. Since the vertical motion is symmetrical, the time taken to reach the maximum height is equal to the time taken to return to the same height. The formula to calculate the time of flight is T = 2 * V0y / g, where g is the acceleration due to gravity (approximately 9.8 m/s^2). Thus, T = 2 * 52.74 m/s / 9.8 m/s^2 ≈ 10.74 seconds.

Finally, we can determine the maximum height using the formula Hmax = V0y^2 / (2 * g). Plugging in the values, we get Hmax = (52.74 m/s)^2 / (2 * 9.8 m/s^2) ≈ 108.4 meters.

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The force acting on the 12 kg mass would be 11 N.

To solve this problem, we need to use the work-energy principle, which states that the work done by a force on an object is equal to the change in the object's kinetic energy.

First, we need to calculate the initial and final kinetic energy of the 12 kg mass.

The initial kinetic energy is given by:

K₁ = (1/2) * m * v₁²

= (1/2) * 12 kg * (11 m/s)²

= 726 J

The final kinetic energy is given by:

K₂ = (1/2) * m * v₂²

= (1/2) * 12 kg * (26 m/s)²

= 936 J

The change in kinetic energy is:

ΔK = K₂ - K₁

= 936 J - 726 J

= 210 J

Next, we need to calculate the work done by the unknown force. We can do this by using the formula:

W = F * d * cosθ

where W is the work done, F is the force, d is the displacement, and θ is the angle between the force and displacement vectors.

In this case, the displacement is 22 meters, and the angle θ is 30 degrees. So we have:

W = F * d * cosθ

= F * 22 m * cos(30°)

= 19.1 F

Finally, we can use the work-energy principle to solve for the unknown force:

W = ΔK

19.1 F = 210 J

F = 11 N

Therefore, the force acting on the 12 kg mass is 11 N.

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The spacing between the lines is 3.33 X 10⁻³ mm and the estimated uncertainty in the line spacing is 3.33 X 10⁻⁵ mm.

Diffraction grating = 300 lines/mm

Thus,

The spacing between the lines = d =

= d = 1/300 lines/mm

= d = 3.33 X 10⁻³ mm

A grating consists of many slits, or lines, close together. In a grating, the spacing between adjacent lines is constant. Gratings are also used to produce interference patterns. When waves are incident on a grating all of the lines act as coherent sources of the waves.

Now, the uncertainty in the lines spacing is = Δ d =

= Δd = d (tolerance)

= Δd =  3.33 X 10⁻³ X 1%

= Δd = 3.33 X 10⁻⁵ mm

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The displacement of the car after the given final velocity is 31.59 m.

The given parameters;

The displacement of the car after the given final velocity is obtained by applying the third kinematic equation as shown below;

v² = u² + 2as

\(s = \frac{v^2 - u^2}{2a} \\\\s = \frac{(18.3)^2 - (24.5)^2}{2(-4.2)} \\\\s = 31.59 \ m\)

Thus, the displacement of the car after the given final velocity is 31.59 m.

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Answer:

5m/s/s

Explanation:

force = mass x acceleration

50 = 10a

a=5m/s/s

Answer:

c) It has more nitrogen than oxygen.

Explanation:

Our Earth’s atmosphere has more nitrogen (78%) than oxygen (21%). Hence, the option (c) is the correct answer.

Answer:

C. It has more nitrogen than oxygen.

Explanation:

Earth's atmosphere is composed of about 78% nitrogen, 21% oxygen, and one percent other gases. These gases are found in layers (troposphere, stratosphere, mesosphere, thermosphere, and exosphere).

Answer:

see below

Explanation:

a wave means one complete wave which is 1 period

so a) 5 complete waves

wavelength is the shortest distance between any two points in phase

so wavelength = 1 CM

amplitude of a wave is the maximum displacement of a particle from its rest position

so amplitude = 3 CM

hope this helps

Answer:

1 lb. is 453.592 grams

Explanation:

1lb is 453.592 grams

Given data:

* The mass of the cannonball is m_1 = 49 kg.

* The initial velocity of the cannonball is u_1 = 0 m/s.

* The final velocity of the cannonball is v_1 = 134 m/s.

* The mass of the boat and pirate is m_2 = 356 kg.

* The initial velocity of the boat and pirate is u_2 = 0 m/s.

Solution:

According to the law of conservation of momentum, the net momentum of the system in the initial state is equal to the net momentum of the system in the final state.

Thus,

Substituting the known values,

By simplifying,

Here, the negative sign indicates the motion of the boat and pirate is opposite to the direction of the cannonball.

Thus, the velocity of the boat and pirate after the cannonball fired is -18.44 meters per second.

The momentum of the system after collison is  1.25 Km/hr.

Momentum is a measure of an object's motion, defined as the product of its mass and velocity. In physics, it represents the tendency of an object to remain in motion or to change its motion, as a result of an external force.

We know that;

Momentum before collision = Momentum after collision

(3000 * 5) - (1000 * 10) = (3000 + 1000) v

v is the common velocity after collision

v = 15000 - 10000 = 4000v

v = 5000/4000

v = 1.25 Km/hr

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Missing parts;

A 3000 kg truck moving rightward with a speed of 5 km/h collides head on with a 1000 kg car moving leftward with a speed of 10 km/h. The two vehicles strike together after the collision. Determine the post-collision velocity of the car and truck.​

Answer:

Vf = 31 m/s

Explanation:

Have to use the Final Velocity Formula - Vf = Vi + a * t

Vf = Final Velocity

Vi = Initial Velocity

a = acceleration

t = time

* = multiply

Vf = 25 + 1.5 * 4

Vf = 25 + 6

Vf = 31 m/s

The final velocity of the car is 31 m/s.

When a volume of air expands against the environment and no heat enters or leaves, the air temperature will decrease - TRUE.

When a volume of air expands, it does work against the environment. The work done is extracted from the internal energy of the gas. In an adiabatic process, no heat is exchanged with the surroundings, so the internal energy of the gas decreases, which causes a decrease in temperature. This happens because the kinetic energy of the gas molecules decreases as the gas expands. As the temperature is a measure of the average kinetic energy of the molecules, the temperature also decreases. This phenomenon is described by the ideal gas law, which relates the pressure, volume, and temperature of an ideal gas. Specifically, the law states that when the volume of a gas increases at constant pressure, its temperature decreases. This is known as adiabatic cooling and is responsible for the formation of clouds in the atmosphere.

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The light waves just below the frequencies in the visible spectrum are known as infrared light waves.

These waves have longer wavelengths than visible light and are not visible to the human eye. Infrared light waves are used in a variety of applications, such as remote controls, thermal imaging cameras, and even in medicine for diagnostic imaging. They are also important in astronomy as they can penetrate dust clouds and reveal the structure of stars and galaxies. While sub-light waves, refractive waves, multimode waves, and polar waves are all types of waves, they are not directly related to the frequencies in the visible spectrum or infrared light waves.

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Answer:

58.8m

Explanation:

After using Hooke's Law, the change in length of the cable caused by lifting the ball is  4.9 mm. So the correct answer is D. 4.9 mm.

To determine the change in length of the cable caused by lifting the ball, we can use Hooke's Law and the formula for the change in length due to stress and strain.

Hooke's Law states that the stress (force per unit area) in a material is directly proportional to the strain (change in length per unit length) within the elastic limit of the material.

The formula for the change in length (ΔL) is given by:

ΔL = (F * L) / (A * Y)

Where:

ΔL is the change in length (in meters, m)

F is the force applied to the cable (in newtons, N)

L is the original length of the cable (in meters, m)

A is the cross-sectional area of the cable (in square meters, m^2)

Y is the Young's modulus of the material (in pascals, Pa)

Given:

Mass of the wrecking ball (m) = 1400 kg

Acceleration (a) = 1.5 m/s^2

Length of the cable (L) = 25 m

Diameter of the cable (d) = 2.5 cm = 0.025 m

Young's modulus (Y) = 1.9 × 10^11 N/m^2

First, let's calculate the force (F) applied to the cable:

F = m * a

  = 1400 kg * 1.5 m/s^2

  = 2100 N

Next, let's calculate the cross-sectional area (A) of the cable:

A = π * (d/2)^2

  = π * (0.025 m / 2)^2

  = π * (0.0125 m)^2

  ≈ 0.0004909 m^2

Now, substitute the values into the formula for ΔL:

ΔL = (F * L) / (A * Y)

  = (2100 N * 25 m) / (0.0004909 m^2 * 1.9 × 10^11 N/m^2)

  ≈ 4.9188 × 10^(-3) m

  ≈ 4.9 mm

Therefore, the change in length of the cable caused by lifting the ball is approximately 4.9 mm. So the correct answer is D. 4.9 mm.

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The average speed Alan must travel at for the rest of the journey is 96 km/h.

The given parameters;

The first distance traveled by Alan is calculated as;

\(d_1 = 64 \ km/h \times 4.25 \ h\\\\d_1 = 272 \ km\)

The total distance traveled by Alan is calculated as;

\(\frac{1}{4} \times \ total \ distance = 272 \ km\\\\ total \ distance = 4 \times 272 \ km\\\\ total \ distance = 1,088 \ km\)

The distance traveled by Alan in the second journey is calculated as;

\(d_2 = \frac{3}{4} \times 1,088 \ km = 816 \ km\)

The time of motion for the second journey is calculated as;

\(t_2 = T- t_1\\\\t_2 = 12.75 \ hr - 4.25 \ hr\\\\t_2 = 8.5 \ hr\)

The average speed of Alan in the second journey is calculated as;

\(V = \frac{distance}{time} \\\\V = \frac{816 \ km}{8.5 \ h} = 96 \ km/h\)

Thus, the average speed Alan must travel at for the rest of the journey is 96 km/h.

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Answer:

the light speed up and change it directtions

Answer:

B is the correct answer

Explanation:

Answer:

b

Explanation:

Answer: less than 9.8 m/s

Explanation:

Answer: B.  Plantae, Protista, Fungi, Animalia

Explanation: It became very difficult to group some living things into one or the other, so early in the past century the two kingdoms were expanded into five kingdoms: Protista (the single-celled eukaryotes); Fungi (fungus and related organisms); Plantae (the plants); Animalia (the animals); Monera (the prokaryotes).

Brainliest? <33

The correct order of kingdoms for organisms 1 through 4 is Plantae, Fungi, Protista, and Animalia. The correct option is D.

In biology, a kingdom is a basic classification of organisms into a group based on certain characteristics. Traditionally, there were five kingdoms: Monera (single-celled prokaryotes), Protista (single-celled eukaryotes), Fungi (multi-celled organisms that feed on decaying matter), Plantae (multi-celled organisms that make their own food through photosynthesis), and Animalia (multi-celled organisms that feed on other organisms).

However, with advancements in molecular biology and genetics, the classification system has been revised and some scientists have proposed a three-domain system that includes Archaea (single-celled organisms that thrive in extreme environments), Bacteria (single-celled organisms found everywhere), and Eukarya (organisms with cells containing a nucleus).

The exact classification system can vary depending on the taxonomist or scientist and the organisms being studied. The goal of classification is to organize organisms into groups based on shared characteristics to better understand the diversity of life on Earth.

Here in the Question,

The order in which Felicia should list the kingdoms for organisms 1 through 4 is:

1. Plantae: This organism is multicellular and has cells with cell walls. It also makes its own food, which is a characteristic of the Plantae kingdom.

2. Fungi: This organism is a single-celled decomposer, which is a characteristic of the Fungi kingdom.

3. Protista: This organism is a simple multicellular organism that lacks true tissues and organs but makes its own food, which is a characteristic of the Plantae kingdom.

4. Animalia: This organism is multicellular and gets food by eating other organisms, which is a characteristic of the Animalia kingdom.

Therefore, the correct order of kingdoms for organisms 1 through 4 is D. Plantae, Fungi, Protista, and Animalia.

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Irina should report the best estimate of the length of the room as 4.425 meters.

Irina should report the best estimate of the length of the room by calculating the average of all the measurements.

The average of the six independent measurements can be found using the formula:

Average = (Sum of measurements) / (Total number of measurements)

Therefore, the average of the six independent measurements can be calculated as follows:

Average =

(4.402 m + 4.217 m + 4.345 m + 4.925 m + 4.372 m + 4.289 m) / 6

= 26.55 / 6= 4.425 m

This is the best estimate of the length of the room because it is the average of all the independent measurements made by Irina.

In science, measurements play a vital role. Scientists use a range of tools to measure things, from simple ruler or meter stick to highly sophisticated equipment. It is crucial for the measurements to be as precise and accurate as possible because any error in the measurement can affect the results of experiments.

To minimize the error in measurement, scientists often make multiple measurements and then report the average of those measurements as the best estimate of the measurement.

This process is known as taking the average, or mean, of the measurements. In the example given above, Irina made six independent measurements of the length of the room using a meter stick. She then calculated the average of those measurements and reported it as the best estimate of the length of the room.

This method is widely used in science to minimize the error in measurement and to ensure that the results of experiments are as accurate as possible.

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Answer:

Liquid water is essential for life to exist. Water can occur in a liquid state only within a specific temperature range, so knowing the temperature range on a planet will help astronomers predict whether life exists on that planet.

The record length would depend on the duration of the signal we are trying to capture. For example, if we want to capture a 1-second signal, we would need a record length of 1/0.0005 or 2000 samples.

To prevent aliasing when sampling a signal with a maximum frequency of 500 Hz, we need to apply an anti-aliasing filter with a cut-off frequency of at least 1000 Hz (twice the maximum frequency of the signal).

The sampling rate should be at least twice the cut-off frequency of the anti-aliasing filter, so we need a minimum sampling rate of 2000 Hz.

The sampling interval is the inverse of the sampling rate, so the sampling interval would be 1/2000 or 0.0005 seconds (or 500 microseconds).

The record length would depend on the duration of the signal we are trying to capture. For example, if we want to capture a 1-second signal, we would need a record length of 1/0.0005 or 2000 samples. If we want to capture a 10-second signal, we would need a record length of 10/0.0005 or 20,000 samples.

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Of those with intellectual disabilities who function at a level of mild ID, the highest frequency of work settings is typically in unskilled labor or artisan trades. This is because these types of jobs require less education or training, and may be more accessible to individuals with intellectual disabilities who may have difficulty with more complex tasks or responsibilities.

However, with appropriate support and accommodations, some individuals with mild intellectual disabilities may also be able to succeed in skilled manual or professional nonmanual work settings. It is important to note that each individual's abilities and interests should be considered when determining their best fit for a work setting, rather than assuming that all individuals with mild ID will be best suited for a particular type of job. Ultimately, the goal should be to provide individuals with intellectual disabilities the opportunity to explore a variety of work settings and find the right fit for their unique skills and strengths.

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Mass is measured in kilograms (kg), while weight is measured in newtons (N). Mass and weight are distinct concepts, with mass representing the amount of matter in an object, while weight is the force exerted on an object due to gravity. The two are related through the gravitational acceleration and can be calculated using the equation weight = mass × gravitational acceleration.

Mass is a fundamental property of matter and is measured in kilograms (kg). It represents the amount of matter an object contains and remains constant regardless of its location in the universe. Mass can be thought of as the measure of inertia or resistance to changes in motion. For example, a 1 kg object will require a greater force to accelerate than a 0.5 kg object.

Weight, on the other hand, is the force exerted on an object due to gravity and is measured in newtons (N). The weight of an object depends on both its mass and the strength of the gravitational field it is in. Weight can vary depending on the location in the universe because gravitational acceleration differs on different celestial bodies. For instance, an object that weighs 9.8 N on Earth would weigh only about 1.6 N on the Moon.

Five key differences between mass and weight are:

1. Mass is a scalar quantity, while weight is a vector quantity with magnitude and direction.

2. Mass remains constant, while weight can change depending on the gravitational field.

3. Mass is measured in kilograms, while weight is measured in newtons.

4. Mass is an intrinsic property of an object, while weight depends on the gravitational force acting upon it.

5. Mass can be directly measured using a balance, while weight requires the use of a scale or a force meter.

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Answer:

1.Vector are quantities which have both magnitude and direction

Scalar are physical quantities which only have magnitude

Distance is Scalar

Displacement is Vector

2. Scalar

3. Vector

Distance: The total length covered by a moving object irrespective of the direction of motion(only magnitude and no direction)

Displacement: The distance measured in a straight line(linear distance) and in a specific direction (both magnitude and direction)

the 4th & 5th question im unsure, i apologize about it

Answer:

A. tracert

Explanation:

Tracert is a computer diagnostic command which displays possible routes for delays in packets of Internet Protocol (IP). Tracert command will display results for route which is recorded round trip times of packet.

The charge is not different upon its exit versus its entry into the lightbulb because charge is conserved.

What is electrical charge?

Electrical charge, q is defined as the property of a matter which is carried by come of the elemental particles of matter which determined how it will be affected when placed in an electromagnetic field.

The unit of electrical charge is coulombs, C.

Th elementary particles of matter and their respective charges are:

protons: positive charge

electrons : negative charge

neutrons: no charge

According to a basic law of electricity, electrical charge is conserved. Therefore, the quantity of charge that enters the lightbulbs is equal to the quantity of charge that leaves the lightbulbs.

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