As shown in the figure, a bullet of mass 0. 010 kg moving horizontally suddenly strikes a block of wood of mass 1. 5 kg that is suspended as a pendulum. The bullet lodges in the wood, and together they swing upward a vertical distance of 0. 40 m. The length of the string is 2. 0 m. What was the speed of the bullet just before it struck the wooden block?.

Answer:

Newton's Second Law tells us that the more mass an object has, the more force is needed to move it. A larger rocket will need stronger forces (eg. more fuel) to make it accelerate. The space shuttles required seven pounds of fuel for every pound of payload they carry.

Explanation:

The size of the wavelength of a radio wave is in the order of millions of meters.

Radio wave is part of the electromagnetic spectrum. The radio wave is known to travel across a long distance because it has a long wavelength. This means that it has a low energy.

Hence, the size of the wavelength of a radio wave is in the order of millions of meters.

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Answer: Building

Explanation: took a quiz :)

The magnitude of the angular momentum of the two-satellite system is best represented as, L=m₁v₁r₁-m₂v₂r₂.

The rotational analog of linear momentum is angular momentum also known as moment of momentum or rotational momentum.

It is significant in physics because it is a conserved quantity. the total angular momentum of a closed system remains constant. Both the direction and magnitude of angular momentum are conserved.

The magnitude of the angular momentum of the two-satellite system is best represented as;

L=∑mvr

L=m₁v₁r₁-m₂v₂r₂

Hence, the magnitude of the angular momentum of the two-satellite system is best represented as, L=m₁v₁r₁-m₂v₂r₂.

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The net force is (40 Newtons) (down the road).

But 40 Newtons is not going to move a piano very enthusiastically.

Answer:

The MOST cost-effective energy option for most of the countries of Southeast Asia is:

C) Geothermal Energy

Answer:

b. An outside force acts upon it

Explanation:

At the lowest point of its motion, the tension in the rope supporting the bucket is 25.0 N.

To understand this situation, we can analyze the forces acting on the bucket at the lowest point of its motion. At this point, the bucket is moving in a circle with a radius of 1.00 m.

1. First, let's consider the weight of the bucket. The weight of an object is given by the equation W = mg, where m is the mass of the object and g is the acceleration due to gravity. In this case, the mass of the bucket is 1.90 kg and the acceleration due to gravity is approximately 9.8 m/s^2. So, the weight of the bucket is W = 1.90 kg * 9.8 m/s^2 = 18.62 N.

2. The tension in the rope provides the centripetal force necessary to keep the bucket moving in a circle. At the lowest point of its motion, the tension in the rope is equal to the sum of the weight of the bucket and the centripetal force. Therefore, we can write the equation Tension = Weight + Centripetal force.

3. We can calculate the centripetal force using the equation F = mv²/r, where m is the mass of the bucket, v is the velocity of the bucket, and r is the radius of the circle. At the lowest point of its motion, the velocity of the bucket is maximum, and it is equal to the velocity at the bottom of the circle. The velocity at the bottom of the circle can be calculated using the equation v = √(rg), where r is the radius of the circle and g is the acceleration due to gravity. Plugging in the values, we get v = √(1.00 m x 9.8 m/s²) = 3.13 m/s.

4. Now we can calculate the centripetal force using the equation F = mv^2/r. Plugging in the values, we get F = 1.90 kg * (3.13 m/s)² / 1.00 m = 18.79 N.

5. Finally, we can calculate the tension in the rope using the equation Tension = Weight + Centripetal force. Plugging in the values, we get Tension = 18.62 N + 18.79 N = 37.41 N.

In conclusion, the tension in the rope supporting the bucket at the lowest point of its motion should be 37.41 N.

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Answer:

nternational System of Units (SI), French Système International d'Unités, international decimal system of weights and measures derived from and extending the metric system of units. Adopted by the 11th General Conference on Weights and Measures (CGPM) in 1960, it is abbreviated SI in all languages.

Explanation:

If a roller coaster moves at 50 m/s for 20 seconds, it moved 1000 m. Distance is the entire movement of an object, regardless of direction.

How much land an object have covered while moving is referred to as the scalar quantity known as distance. It is the entity's overall change in position, or how far out of place an object is," that is described by the vector quantity displacement.

An object's total path traveled can be used to measure distance. As an illustration. The total distance driven by an automobile must be 13 km if it drives 5 km east, 8 km north, and back again.

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\(\huge\boxed{\boxed{Hello\;there!}}\)

The governing board in soccer is

Federation International Football Association (\(\bold{FIFA}\))

\(\bold{Hope\;my\;answer\;is\;helpful!}\)

\(\sf{Answered by:}\\\rm{StillEnjoyingLife :)\)

Answer: "The electric field points to the left because the force on a negative charge is opposite to the direction of the field."

Explanation:

So, we have a negative test charge that is experiencing a force to the right as a result of an electric field. What can we conclude from this description?

Well, we know that negative charges experience a force that is opposite to the direction of the electric field. In this case, the negative test charge is experiencing a force to the right, which means that the electric field is pointing to the left.

Therefore, the best conclusion to draw from this description is: "The electric field points to the left because the force on a negative charge is opposite to the direction of the field."

It's important to note that no conclusion can be drawn about the amount of charge on the test charge because that information is not given. However, we can still confidently conclude that the electric field points to the left based on the direction of the force on the negative test charge.

Answer:

E-Community

Explanation:

edge 2021

Answer:

The answer would be option E- community

Explanation:

Hope this helped :)

edg 2022

Answer:

33.12m

Explanation:

Given parameters:

Time of fall  = 2.6s

Unknown:

Height of the balcony  = ?

Solution:

To solve this problem; use this expression:

    H  = ut + \(\frac{1}{2}\) gt²

u is the initial velocity

t is the time

 g is the acceleration due to gravity  = 9.8m/s²  

 So;

          H  = (0 x 2.6) + ( \(\frac{1}{2}\) x 9.8 x 2.6²)  = 33.12m

Both graphs of energy are attached in the answer.

The ability of a body to do tasks may be referred to as energy. The joule is the SI unit of energy (J). or 1 kJ Equals 1000 J. energy guises: Potential energy, kinetic energy, thermal energy, chemical energy, and light energy are some of the several types.

Potential energy of a man due to gravity can be express as = mass × acceleration due to gravity × height.

Hence, graph, that shows potential energy of a firefighter slides through the vertical pipe with length, will be linearly decreasing type.

As, total energy is conserved, graph, that shows kinetic energy of a firefighter slides through the vertical pipe with length, will be linearly increasing type.

Graphical representation of both linearly increasing and linearly decreasing is attached here.

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Answer:

Below

Explanation:

Use formula for EPE :

EPE  =  1/2 k x^2  

480 j = 1/2 (60 N/m) x^2      shows x = 4 meters

Answer:

along the upper right side

Explanation:

cause metals are on upper left side

Answer:

When the bulb receives this electrical energy, then it converts it into light and heat energy. At first, the energy transformation takes place in the battery and then the bulb. Hence, the transformation of energy in the given situation can be shown as: Chemical Energy → Electrical Energy → Light Energy + Heat Energy.

Answer:

excuse me i not beautiful exercise

i m sorry

Answer:

It has to be important to you.

-It has to be something that you are in control of.

-It has to be attainable, or able to be achieved.

-It has to be clear and specific.

-It has to have a plan.

Wellness

Wellness refers to a healthy state of being in body, mind, and emotion.

Body wellness

means eating right, exercising, and keeping your bodily systems in good health.

Mental wellness

means feeling safe and secure in your environment and at peace with your decisions and actions.

Emotional wellness

means feeling your best and having the ability to deal with many different situations.

Wellness: Setting Goals

The first step to setting a goal is defining it. Keep in mind that not everything you wish for can be a goal. When it comes to physical activity, diet, and exercise, you may wish to run a marathon before the end of the school year. However, this goal could be difficult to achieve if school ends in just a few months and you are not already training. A more reasonable goal might be to be able to run a mile in the amount of time considered healthy for your age group.

Importance of Physical Education

Physical education explores the methods, types, and benefits of physical activity for the body. In addition to staying active, making healthy choices about diet and exercise is important to overall personal and long-term health. Long-term health passed down through generations can also promote healthy family lifestyles.

Fitness

is the ability of the body to function effectively and efficiently during physical activity and is the ability to move joints through an entire range of motion.

Physical exercise

is the act of improving one's body through specific intentional movements.

differences between exercise and fitness

while anyone can exercise, only someone who exercises regularly can be fit.

Why is it important to make healthy choices about your diet and exercise?

Choosing healthy behaviors when it comes to diet and exercise is important to personal health, long-term health, and promoting healthy family lifestyles.

five components of physical education:

-Cardiorespiratory endurance

-Muscular strength

-Muscular endurance

-Flexibility

-Body composition

Explanation:

Life is WORTH LIVING

Answer: I didn’t make my schedule with a support system in mind. But, I can build a support system by finding people who can keep me on track. On the weekends, my friends can be my support system. During the week, it’s not that easy because my friends and family are so busy. I know that my mom goes for a 20-minute walk in the morning before work. Maybe I could walk with her and then work out on my own for 40 minutes afterward.

Explanation: Plato

Answer:

Below

Explanation:

Diameter of straw = .5 cm      then the  radius = .25 cm

AREA of the straw = pi r^2 = pi ( .25 cm)^2 = .19635 cm^2

  Now we need to find the LENGTH necessary to have a volume of 1000 cm^3

      1000 cm^3  = L * . 19635 cm^2  

      L = 5.092.958 cm       <=== your blowing covers this distance in 1.3 s

   5092.958 cm / 1.3 s = 3917.7 cm / s = 39.2 m/s

The parts of an experimental investigation that model the weathering of rock by water would involve observing changes in the rocks due to exposure to water, while the parts that model the erosion of rock by water would involve observing how water moves rocks from one location to another.

In order to gather data to support or disprove a causal relationship, experimental investigations entail a process in which a "fair test" is designed and variables are actively manipulated, controlled, and measured. A control group is used in experimental studies that receives no treatment.

Here, the weathering of rock by water can be modeled by exposing rocks to water and observing how they change over time. For example, if you were to place rocks in a container of water and leave them for a few days or weeks, you might observe changes in the rocks due to the effects of water. These changes could include physical weathering etc.

For erosion of rock by water, this can be modeled by observing how water moves rocks from one location to another. For example, if you were to create a miniature stream by running water over a surface with rocks, you could observe how the water moves the rocks downstream and changes their location. This process can also cause physical and chemical weathering.

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It is crucial that the track be perpendicular to the flight path of the bar because it ensures that the motion of the bar is solely in one dimension. When the track is perpendicular, it limits the movement of the bar to only forward and backward motion, with no side-to-side movement. This allows for accurate measurement of the velocity and acceleration of the bar, which is important in physics experiments.

In simpler terms, if the track is not perpendicular to the flight path of the bar, the bar will move in multiple directions, making it difficult to accurately measure its motion. This can result in erroneous data and invalid conclusions.

The perpendicularity of the track to the flight path of the bar is crucial in physics experiments. It ensures accurate measurement of the bar's motion, which is essential in drawing valid conclusions from experiments. If the track is not perpendicular, the results obtained may be incorrect, leading to flawed conclusions.

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The height of the utility pole she has climbed is 60 m

When an object is dropped under gravity, the initial velocity is zero. While at the maximum height reached by an object when thrown up, the final velocity will be zero.

Given that a utility line worker drops a screwdriver which takes 3.5 seconds to hit the ground. The height of the utility pole can be calculated by using the formula below

h = ut + 1/2gt²

but u = 0

h = 1/2gt²

Substitute all the parameters into the equation

h = 1/2 × 9.8 × 3.5²

h = 4.9 × 12.25

h = 60.025 m

Therefore, the height of the utility pole she has climbed is 60 m approximately.

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A) The current through the branches can be ranked as follows; 1. The middle branch 2. The top branch 3. The battery.Explanation: Current is measured in amperes, and it is the flow of electrical charge in the circuit. When we turn on an appliance, a current flows through the circuit, powering the device. It's crucial to note that current is the same at all points in a series circuit.

The formula for current is I = V/R, where V is the voltage and R is the resistance. The circuit's middle branch has only one bulb, so its resistance is lower than the resistance of the top branch. As a result, the current in the middle branch is greater than the current in the top branch. The battery has the greatest current because it is the source of the current that flows through the circuit.

As a result, the current can be ranked as follows: middle branch > top branch > battery. B) The voltage across the branches can be ranked as follows; 1. The battery 2. The top branch 3. The middle branch.Explanation: Voltage is measured in volts and is the electrical potential difference between two points in a circuit. Voltage is the same across all branches in a parallel circuit. It's crucial to note that the sum of voltages in a parallel circuit is the same as the voltage of the battery.

The voltage across the battery is the same as the voltage across the top branch since the battery is in parallel with the top branch. The voltage across the middle branch, on the other hand, is the lowest because it has just one bulb and has a lower voltage drop than the top branch. As a result, the voltage can be ranked as follows: battery > top branch > middle branch.

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Plugging in these values gives an electric field of -1.07 x 10-8 N/C.

Electric field is a physical phenomenon that occurs when an electric charge is present in a space.

The electric field of a -3.2 nC charge from a distance of 6 m can be calculated using the equation E = kQ/r2, where k is Coulomb's constant (8.99x109 Nm2/C2), Q is the charge of the particle (in this case, -3.2 nC), and r is the distance from the particle (6 m). Plugging in these values gives an electric field of -1.07 x 10-8 N/C.

2. The electric field of a +3.2 nC charge from a distance of 6 m can be calculated using the same equation as in #1, E = kQ/r2, where k is Coulomb's constant (8.99x109 Nm2/C2), Q is the charge of the particle (in this case, +3.2 nC), and r is the distance from the particle (6 m). Plugging in these values gives an electric field of +1.07 x 10-8 N/C.

3. To find the distance between two +3.4 μC particles that experience a force of 0.01 C/m, we can use the equation F = kQ1Q2/r2, where k is Coulomb's constant (8.99x109 Nm2/C2), Q1 and Q2 are the charges of the two particles (in this case, +3.4 μC each), and r is the distance between them. Plugging in these values gives a distance of 5.81 m.

4. To find the distance between two -6 μC particles that experience a force of 0.03 C/m, we can use the same equation as in #3, F = kQ1Q2/r2, where k is Coulomb's constant (8.99x109 Nm2/C2), Q1 and Q2 are the charges of the two particles (in this case, -6 μC each), and r is the distance between them. Plugging in these values gives a distance of 1.31 m.

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Answer:

A car

Explanation:

The rock, when thrown horizontally with a speed of 16 m/s from the top of a 48 m cliff, would hit the flat plain below at a horizontal distance of approximately 32 meters.

When the rock is thrown horizontally, it only experiences horizontal motion and does not have any vertical component of velocity. This means that its initial vertical velocity is zero. Due to the absence of air resistance, the only force acting on the rock in the horizontal direction is its initial horizontal velocity.

Since the rock is falling vertically due to gravity while moving horizontally with a constant speed, it follows a projectile motion trajectory. The time it takes for the rock to reach the ground is determined solely by the vertical motion and is given by the equation t = \(\sqrt{(2h/g)\), where h is the initial vertical height (48 m) and g is the acceleration due to gravity (9.8 m/s²).

Using this time value, we can calculate the horizontal distance traveled by the rock using the equation d = \(v*t\), where v is the initial horizontal velocity (16 m/s) and t is the time of flight. Plugging in the values, we find that the horizontal distance is approximately 32 meters.

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