you throw a snowball horizontally. it hits a target 2 meters away. you notice that it hit .9 m below were u aimed. with what horizontal velocoty did you throw the ball

Answer:

Would it be starting point?

Explanation:

When you start a sport or something, you may not be good or bad at it. However, as time goes on you are going to improve.

Idk if this helps or not buh yeah

Explanation:

Pick your direction of the perpendicular forces.

Let down be negative and up be positive.

Remember that sum of all the forces is the net force,

So for the vertical forces, we have

\(45 + ( - 45) = 0\)

Next, pick your direction of the parallel forces.

Let right be positive and left be negative so we have

\(15 + ( - 45) = - 30\)

So our net force is 30 N to the left

When the ball returns to his hands 0.6 seconds later, Low speeds have very little air friction. Youngster playing catch with himself while wearing a large baseball cap.

What is an object's speed?

The speed by which an object moves a distance could be thought of just like its speed. A slow-moving object travels a relatively short distance in a given length of time, whereas a fast-moving object travels a big distance in a short amount of time.

What does speed look like mathematically?

Speed is mathematically represented as follows: Distance dimension formula: M0L1T0 Time has the following dimensions: M 0 H 0 T 1. By dividing the dimensional formulas for time and distance, we arrive to the following result:

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Answer:

Hi there!

Your answer is;

345,600 mins per 240 days

Explanation:

First, start small

How many minutes are in one hour?

60mins per 1 hr

How many minutes per one day?

60 × 24= 1440

1440 mins per 1 day

How many minutes per 240 days?

1440× 240= 345600

345,600 mins per 240 days

Hope this helps

The flower pot's kinetic energy as it hits the ground is equal to the potential energy that it had at the initial position. The expression for this potential energy can be given by the formula PE = mgh, where m is the mass of the object, g is the acceleration due to gravity, and h is the height from which the object falls.

When a flower pot falls off a window ledge 10 m above the ground, its potential energy at the initial position can be calculated using the formula PE = mgh, where m is the mass of the pot, g is the acceleration due to gravity (9.81 m/s²), and h is the height from which the pot falls, which is 10 m. Therefore, the potential energy of the flower pot is given by:PE = mgh PE = (mass of flower pot)(acceleration due to gravity)(height of the flower pot)PE = (mass of flower pot) x 9.81 m/s² x 10 m PE = 98.1 m x (mass of flower pot).

This potential energy is converted into kinetic energy as the flower pot falls and reaches the ground. According to the law of conservation of energy, the total energy of the system (flower pot + Earth) remains constant. Therefore, the kinetic energy of the flower pot as it hits the ground is equal to the potential energy that it had at the initial position. Mathematically, this can be written as: KE = PEKE = 98.1 m x (mass of flower pot)Thus, the flower pot's kinetic energy as it hits the ground is equal to 98.1 times the mass of the pot.

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Answer:

60 - 45 = A. 15

Explanation:

Subtracted because the plane mirror at an angle is incidence of 60°, so then in order to find the value it would be 60-45 and not adding it or dividing and multiplying to find the value thus the answer is 15.

60 - 45 = A. 15. Subtracted because the plane mirror at an angle is incidence of 60°, so then in order to find the value it would be 60-45 and not adding it or dividing and multiplying to find the value thus the answer is 15.

A flat or highly polished surface called a plane mirror reflects light or waves to create an image. It is a polished, smooth surface that creates a virtual representation of the actual object.

A plane mirror is a surface on which an image can only be produced by at least two light beams. The intersection of these two beams can occur inside the mirror or appear to occur somewhere behind the mirror.

The image that follows illustrates how an object appears when viewed via a plane mirror.

Therefore, 60 - 45 = A. 15. Subtracted because the plane mirror at an angle is incidence of 60°, so then in order to find the value it would be 60-45 and not adding it or dividing and multiplying to find the value thus the answer is 15.

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Wavelength = 0.16m to 2.dp

Wavelength = wave speed / frequency

= 1,151 ÷ 7,143

= 0.1611367773

Hope this helps!

The energy absorbed by Hydrogen atom to transit an electron from n = 3 to n = 6 is 1.815x10-19 Joules

Energy Level: According to the Bohr atomic model, energy levels—also known as electron shells—are thought of as the orbits that electrons in an atom's nucleus take. Electrons must always be in one of the energy levels and never in the space between them since the energy levels represent defined distances.

According to the given information

Change in energy = \(-13.6eV \frac{1}{n_{f} ^{2} }-\frac{1}{n_{i} ^{2} }\)

                              = -13.6 × 1.6 × \(10^{-19}\) ( \(\frac{1}{6^{2} }\) - \(\frac{1}{3^{2} }\) )

                              = 21.76 × \(10^{-19}\) × 0.084

                              = 1.815 × \(10^{-19}\) J

Change in Energy level = 1.815 × \(10^{-19}\) J

The energy absorbed by Hydrogen atom to transit an electron from n = 3 to n = 6 is 1.815x10-19 Joules

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Grow the peanut and 105 ways of preparing it for human consumption

Growing Peanuts:

   Climate and Soil Requirements:

       Peanuts require a warm climate with temperatures between 70°F and 90°F (21°C to 32°C).

       They need well-drained soil with a pH between 5.8 and 6.2.

   Seed Selection:

       Choose healthy, disease-free peanut seeds from a reliable source.

   1)Preparing the Soil:

       Clear the area of weeds and debris.

       Loosen the soil to a depth of 6 to 8 inches (15 to 20 cm) using a garden fork or tiller.

       Incorporate organic matter, such as compost or well-rotted manure, into the soil.

2)   Planting:

       Plant peanuts after the last frost date when the soil temperature reaches at least 65°F (18°C).

      3) Dig shallow furrows around 1 to 2 inches (2.5 to 5 cm) deep and space them about 18 to 24 inches (45 to 60 cm) apart.

       Place peanut seeds 2 inches (5 cm) apart within the furrows.

       Cover the seeds with loose soil.

 4)  Watering and Care:

       Water the peanuts regularly, providing around 1 inch (2.5 cm) of water per week.

       Mulch around the plants to conserve moisture and suppress weeds.

       Monitor for pests and diseases, such as aphids, caterpillars, or leaf spot, and take appropriate action.

   Harvesting:

       Peanuts are ready for harvest when the leaves start to turn yellow.

       Carefully dig up the entire plant, taking care not to damage the pods.

       Shake off the excess soil and hang the plants in a well-ventilated area to dry for about two to three weeks.

       Once the shells are dry and the peanuts rattle inside, they are ready for further processing.

105 Ways to Prepare Peanuts for Consumption:

   Peanut Cl

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Plastic ends up the hottest when equal masses of lead, plastic, and stone are given the same amount of energy, considering the specific heat capacities of the materials.

The specific heat capacity of a substance measures the amount of heat energy required to raise the temperature of a given mass of the substance by a certain amount. A higher specific heat capacity means that the substance can absorb more heat energy without experiencing a significant increase in temperature.

Given that the specific heat of plastic is 50 times larger than the specific heat of lead and 10 times larger than the specific heat of stone, we can conclude that plastic can absorb more heat energy compared to lead and stone.

If equal masses of lead, plastic, and stone are given the same amount of energy, the substance with the higher specific heat capacity will end up the hottest because it can absorb more heat energy before experiencing a significant temperature increase.

Therefore, plastic, with its higher specific heat capacity, will end up the hottest among lead, plastic, and stone when given the same amount of energy.

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Answer:

w=f×s

w = 16000 J, hope this helps

Answer:

time

Explanation:

power = work done ÷ time

Based on the value of the mass of the tool and the force of gravity on that planet, the gravitational acceleration of the planet is 7.8 m/s².

The mass and force of gravity acting on a body are related by the formula given below:

Force of gravity = mass * gravitational acceleration

The mass of a body is constant but the force of gravity acting on a body or the weight of the body varies depending on the value of the gravitational acceleration.

Considering the given values:

Mass of tool = 2.5 kg

Force of gravity acting on the tool = 19.5

gravitational acceleration = 19.5 / 2.5

gravitational acceleration = 7.8 m/s²

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Answer:

3

Explanation:

let the number be x

perform and forming expression

12 is added

=12 + x

4 is multiplied to expression

= 4 (12 + x)

result is 60

equating

4(12 + x) = 60

48 + 4x=60

4x = 60-48

4x = 12

x= 12/4

x= 3

1. The phrase "What if we were alone?" is repeated in the title and the questions in the first stanza. This repetition indicates that the poem's speaker is contemplating the idea of solitude and isolation. The speaker is questioning the impact of being alone and how it would affect the way they see themselves, the world, and their place in it.

2. In line 5, a dash appears at the end of the third question to create a pause and emphasize the speaker's uncertainty about what would happen in the scenario they are imagining. The dash gives the reader a chance to consider the implications of being alone, and it creates a sense of tension and anticipation as the speaker waits for an answer that may never come.

3. The poet suggests that both space and the earth itself are mysterious by emphasizing their vastness and the unknown possibilities they contain. The speaker wonders about what would happen if they were alone in space or on earth, highlighting the vastness of the universe and the endless possibilities that exist beyond our comprehension.

4. The human need for connection and the fear of being alone. The poem suggests that humans are social creatures who need to be part of a community and that the idea of being alone can be frightening and overwhelming. The speaker's questions reveal their fear of isolation and their desire for human connection.

5. In the first stanza, the "words of the wiser" are spoken by Galileo. In the final stanza, the "wise" words belong to the speaker themselves. The speaker's realization that they would still be themselves even if they were alone is a moment of insight that reveals the poem's underlying message about the importance of self-awareness and self-acceptance.

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complete question: “WHAT IF WE WERE ALONE?” Poem by William Stafford 1. Infer What phrase is repeated in the title and the questions in the first stanza? What does this repetition indicate about the poem’s speaker? 2. Interpret In line 5, why do you think a dash appears at the end of the third question? 3. Compare How does the poet suggest that both space and the earth itself are mysterious? 4. Draw Conclusions What do you think is the theme of “What If We Were Alone?” Why do you think so? 5. Notice & Note In the first stanza, you read some “words of the wiser” as spoken by Galileo. Whose “words” are described in the final stanza? What makes these “wise” words, too?

According to Newton's law of universal gravitation, every object with mass exerts a gravitational force on every other object with mass. The magnitude of this force is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

In the case of Earth and Sydney, both objects have mass. Earth's mass is significantly larger than Sydney's, which means Earth exerts a much stronger gravitational force. The gravitational force between them pulls Sydney toward Earth, causing her to experience weight.

When we say "the attraction between Earth and Sydney is equal to her weight," it means that the gravitational force exerted by Earth on Sydney is equal to the force required to support Sydney's weight. This force is calculated using the equation F = m * g, where F represents the force, m is the mass of the object (in this case, Sydney), and g is the acceleration due to gravity.

Now, according to Newton's third law of motion, for every action, there is an equal and opposite reaction. This principle applies to the gravitational interaction between Earth and Sydney as well. So, while Earth pulls Sydney with a force equal to her weight, Sydney also exerts an equal and opposite force on Earth.

In practical terms, Earth's pull on Sydney keeps her grounded, preventing her from floating away into space. Simultaneously, Sydney's pull on Earth is incredibly small due to her significantly smaller mass. However, the reaction force from Sydney is still present, following Newton's third law.

Overall, the reaction to Earth's pull on Sydney is an equal and opposite force exerted by Sydney on Earth.

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jegh[g31Answer:

Explanation:

grrrrebvhds

Answer:

C. Motion

Explanation:

Hope this helps!

Answer:

The magnitude of the normal force on the box is N= m*g + W

Explanation:

According to Newton's Second law and normal force.

so with the help of Newton's second law

we can write the equation for force:

F = ma

Since,

box is sitting on floor of an elevator.

there are two forces acting on this box:

So we can rewrite the previous equation as,

N - W = F

N - W = ma

hence,

N=m*a + W

this is the The magnitude of the normal force on the box.

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Answer:Entropy can be thought of as a measure of the dispersal of energy. It measures how much energy has been dispersed in a process. The flow of any energy is always from high to low. Hence, entropy always tends to increase.

Explanation:

(a) If the mass of the moon were 6 times as large, the magnitude of the force would be 252 × 10²⁴ N. (b) If the distance between the moon and the planet were 6 times as large, the magnitude of the force would be 0.194 × 10²⁴ N.

(a) The gravitational force between two objects is given by Newton's law of universal gravitation:

\(\[F = G \frac{m_1 m_2}{r^2}\]\)

Where:

F is the gravitational force

G is the gravitational constant (approximately 6.67430 × 10⁻¹¹ N m²/kg²)

m₁ and m₂ are the masses of the two objects

r is the distance between the centers of the two objects

Let's assume the original mass of the moon is m₁, and the mass after being increased by 6 times is m₂.

The magnitude of the gravitational force, F₂, with the increased mass would be:

\(\[F_2 = G \frac{m_2^2}{r^2}\]\)

Now, we can express F₂ in terms of F₁, the original force, and m1:

\(\[F_2 = F_1 \left( \frac{m_2}{m_1} \right)^2\]\)

Since we are given F₁ = 7 × 10²⁴ N, and m₂ = 6 * m₁, we can substitute these values into the equation:

\(\[F_2 = (7 \times 10^{24} \text{ N}) \left( \frac{6 m_1}{m_1} \right)^2\]\)

   = (7 × 10²⁴ N) * 6 * 6

   = 252 × 10²⁴ N

Therefore, if the mass of the moon were 6 times as large, the magnitude of the force would be 252 × 10²⁴ N.

(b) If instead the distance between the moon and the planet were 6 times as large (no change in mass), what would the magnitude of the force be?

Using the same formula as before, the magnitude of the gravitational force, F₃, with the increased distance would be:

\(\[\begin{aligned}F_3 &= G \frac{m_1^2}{(6r)^2} \\\]\)

\(&= \frac{1}{36} \left( G \frac{m_1^2}{r^2} \right)\)

Since the distance increases by a factor of 6, the magnitude of the force would decrease by a factor of 36.

\(\begin{equation}F_3 = \frac{1}{36} F_1\)

\(\begin{equation}F_3 = \frac{1}{36} \times 7 \times 10^{24} \,\text{N}\)

F3 = 0.194 × 10²⁴ N

Therefore, if the distance between the moon and the planet were 6 times as large, the magnitude of the force would be 0.194 × 10²⁴ N.

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Complete question :

At a particular instant the magnitude of the gravitational force exerted by a planet on one of its moons is 7 x 1024 N. (a) If the mass of the moon were 6 times as large, what would the magnitude of the force be? F =D (b) If instead the distance between the moon and the planet were 6 times as large (no change in mass), what would the magnitude of the force be?

Power can be retained in the high voltage system for up to two minutes once it has been disabled.

A High voltage carries more than 1000 volts between conductors and 600 volts between conductors and ground.

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The force that causes a car to follow a circular path when going around a curve on a horizontal road at a constant speed is the friction force from the road (Option A). This force is essential for the car to overcome the tendency to move in a straight line and maintain its curved trajectory.

When a car goes around a circular curve, it experiences a centripetal acceleration directed towards the center of the curve. According to Newton's second law of motion, F = ma, there must be a net force acting on the car to produce this acceleration. In this case, the friction force between the car's tires and the road provides the necessary centripetal force.

The car has a tendency to move in a straight line due to its inertia, as described by Newton's first law. However, the curved path requires a force to redirect its motion.

As the car turns, the tires exert a friction force on the road in the opposite direction of the car's motion. This force arises from the interaction between the microscopic irregularities on the tire and the road surface.

The friction force acts as the centripetal force, directed towards the center of the circular path. It enables the car to change its direction and continually adjust its trajectory to follow the curve.

The normal force from the road (Option B) and gravity (Option C) are present but not directly responsible for the car's circular motion. The normal force acts perpendicular to the road's surface, counteracting the weight of the car and preventing it from sinking into the road.

Option D, which suggests that no force is causing the car to follow the circular path, is incorrect. Even though the car is traveling at a constant speed and has no linear acceleration, it experiences a centripetal acceleration that requires a force (friction) to maintain the circular trajectory.

In conclusion, the correct answer is A) the friction force from the road, which provides the necessary centripetal force for the car to follow the circular path.

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Answer:

C

Explanation:

Use formable metal flashing:

Answer:

stainless steel

Explanation:

Flashing can be made from many different materials, including metal (copper, aluminum, stainless steel, lead, etc.)

Given : Initial speed , u = 0 m/s .

Final speed , v = 8.7 m/s .

Distance travelled , d = 32 m .

To Find :  How far from the starting line will the sprinter be if they continue at the speed for 5 more seconds .

Solution :

It is given that after reaching speed of 8.7 m/s speed become constant .

So , distance covered in 5 second is :

\(d=v \times t\\d=8.7 \times 5 \ m\\d=43.5 \ m\)

Now , total distance from start line is :

\(D=32+43.5=75.5 \ m\)

Therefore , the distance from starting line is 75.5 m .

Hence , this is the required solution .

The magnitude of the acceleration of the speck of clay is approximately 1,876,978 cm/min².

We can find the tangential speed using the formula, v = (2πr)/t, where, v is the tangential speed, r is the radius of the wheel (half of the diameter), t is the time for one revolution, which we can calculate using the given speed of 50 rpm.

So, the radius of the wheel is, r = 38 cm / 2 = 19 cm

The time for one revolution is, t = 1 / (50 rev/min) = 0.02 min/rev

Substituting these values into the formula,

v = (2π × 19 cm) / (0.02 min/rev) ≈ 5968.2 cm/min

Now we can calculate the magnitude of the acceleration of the speck of clay using the formula, a = v² / r, where, a is the magnitude of the acceleration, v is the tangential speed we just calculated, r is the radius of the wheel.

Substituting the values, a = (5968.2 cm/min)² / 19 cm ≈ 1,876,978 cm/min²

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Answer:

maybe A 100 minutes of intense activity weekly

The option that can be expressed in light years is " the distance between two stars." The correct option is B.

A light-year is a unit of distance used to measure astronomical distances. It is defined as the distance that light travels in one Earth year in the vacuum of space, which is approximately 9.46 trillion kilometers (5.88 trillion miles). Light travels at a speed of about 299,792,458 meters per second (or approximately 186,282 miles per second), which means that in one year, light can cover a distance of 9.46 trillion kilometers. Light years are commonly used to measure the distance between stars and galaxies, and since space is vast, other units of distance are often not practical.

Here in the Question,

A] The age of a rock is a measure of time, usually in millions or billions of years, and cannot be expressed in light years, which is a unit of distance.

C] The speed at which the Earth revolves around the sun is measured in kilometers per second or miles per hour and represents a velocity, not a distance. Hence it cannot be expressed in light years.

D] The time it takes for Earth to complete a revolution around the sun is measured in days or years and is again a measure of time, not distance. So it cannot be expressed in light years.

Therefore, Only B The distance between two stars is a measure of distance, which can be expressed in light years since it is a vast distance and other units may not be suitable.

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The ball will take 45 seconds to reach the ground.

U=0(since ball is dropping)

So, we have to find t=?

Given

a=-9.8m/s

S=45m

As we know,

S=ut+1/2at^2

so,

t^2=45×90/2

hence

t=45s.

so the time taken is 45 seconds.

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Answer:it’s 10N

Explanation:So 30N is going left and 20N is going right so you would subtract it because they are going opposite ways if they where going the same why then you would add them.

If you are applying a force of 30 N and your friend is applying a force of 20 N in opposite directions, the net force will be 10 N.

Newton postulated that anytime objects A and B come into contact, they exert forces on one another. These two forces—also known as the action and reaction forces—are covered by Newton's third law of motion. The official formulation of Newton's third law is as follows: Every action has a corresponding and opposing reaction.

According to Newton's Third Law, forces always work in pairs. Think about what it illustrates when a boy plays with a dog's toy. The kid exerts force on the dog's toy, while the dog's toy exerts force on the boy. These two forces work together to form a pair.

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