A football is thrown upward at a(n) 23 degree angle to the horizontal. The acceleration of gravity is 9.8 m per s. To throw a(n) 52 m pass, what must be the initial speed of the ball? Answer in units of m per s.

It is possible to suspend an object at rest from its center of gravity, and gravity won't induce it to begin rotating no matter how it is positioned.  

Thus, The center of gravity of an object will be located somewhere along a vertical line that passes through the point of suspension if you suspend it from any point and allow it to come to rest.

The gravitational acceleration is (almost) constant near the surface of the earth, where the center of mass also lies.

A place that represents the average or typical location of an object's mass, as if all of the mass were contained there, is known as the center of mass (CM). The geometric center of a uniform sphere serves as its center of mass. The barycenter is another name for the CM.

Thus, It is possible to suspend an object at rest from its center of gravity, and gravity won't induce it to begin rotating no matter how it is positioned.  

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Answer:

pascal principle states that pressure exerted to a confined fluid is transmitted uniformly in all direction

The true statement is Pascal principle states that pressure exerted to a confined fluid is transmitted uniformly in all direction.

Pascal principle states that a pressure change at any point in a confined incompressible fluid is transmitted throughout the fluid such that the same change occurs everywhere.

P = F/A

Thus, the true statement is Pascal principle states that pressure exerted to a confined fluid is transmitted uniformly in all direction.

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Answer:

14°F = 263.15 K

31°F = 272.594 K

71°F = 294.817 K

35°F = 274.817 K

Explanation:

Use the formula 273.15 + ((°F–32)•5)/9

The primary effect of increasing the surface tension of the liquid is to increase the capillary force. Capillary forces arise due to the combined effects of adhesion and cohesion

When the surface tension of the liquid increases, the capillary rise will increase. It is because the increase in surface tension leads to an increase in the force that pulls the liquid upwards in a tube. is as follows;If you place a capillary tube in a beaker filled with water, the water surface inside the tube rises slightly higher than the level outside the tube.

This rise in water level is called capillary rise. The capillary rise is caused by the attraction between the molecules of the water and the molecules of the glass tube.This attraction is called capillary force or capillary action. The capillary force is due to the combined effect of adhesive and cohesive forces. The adhesive force is the attraction between the molecules of the liquid and the molecules of the solid surface, while the cohesive force is the attraction between the molecules of the liquid.

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The minimum working space required by the National Electrical Code (NEC) in new installations between a 480-volt motor control center and a 480Y/277-volt switchboard facing each other is determined by the regulations outlined in the NEC.

According to NEC Article 110.26, the minimum working space requirements depend on the voltage and equipment involved. For equipment rated over 600 volts, such as the 480-volt motor control center, the minimum working space is specified by Table 110.34(A).To provide an accurate answer, the specific dimensions and configurations of the equipment need to be considered. However, I cannot access real-time information, as my knowledge was last updated in September 2021. I recommend consulting the latest edition of the NEC and reviewing the specific requirements outlined in Article 110.26 and Table 110.34(A) to determine the minimum working space required between the motor control center and the switchboard in your specific installation.

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Answer:

Explanation:

it's blocked for me...it was unblocked but you know how everything else is blocked

Displacement is the movement of unfavorable emotions from one thing or person to another.

As a kind of self-preservation, displacement is the act of shifting one's unfavorable emotions from one thing or person to another.

According to the notion, releasing stress or worry on a non-threatening target helps a person deal with negative emotions like fear or rage.

For instance, if a person feels angry because their boss yells at them, they might project those feelings onto someone or something else, such a member of their family or a piece of furniture.

For fear of losing their work, the person could feel unable to face their manager. As a result, they might vent their rage on a less dangerous person like their partner or housemate.

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The centre of mass of the region is bounded by y=9-x^2 y=5/2x, and the z-axis is (3.5, 33/8). Formulae used to find the centre of mass are as follows:x bar = (1/M)*∫∫∫x*dV, where M is the total mass of the system y bar = (1/M)*∫∫∫y*dVwhere M is the total mass of the system z bar = (1/M)*∫∫∫z*dV, where M is the total mass of the systemThe region bounded by y=9-x^2 and y=5/2x, and the z-axis is shown in the attached figure.

The two curves intersect at (-3, 15/2) and (3, 15/2). Thus, the total mass of the region is given by M = ∫∫ρ*dA, where ρ = density. We can assume ρ = 1 since no density is given.M = ∫[5/2x, 9-x^2]∫[0, x^2+5/2x]dAy bar = (1/M)*∫∫∫y*dVTherefore,y bar = (1/M)*∫[5/2x, 9-x^2]∫[0, x^2+5/2x]y*dA= (1/M)*∫[5/2x, 9-x^2]∫[0, x^2+5/2x]ydA...[1].

The limits of integration in the above equation are from 5/2x to 9-x^2 for x and from 0 to x^2+5/2x for y.To evaluate the above integral, we need to swap the order of integration. Therefore,y bar = (1/M)*∫[0, 3]∫[5/2, (9-y)^0.5]y*dxdy...[2].

The limits of integration in the above equation are from 0 to 3 for y and from 5/2 to (9-y)^0.5 for x.Substituting the values and evaluating the integral, we get y bar = (1/M)*[(9-5/2)^2/2 - (9-(15/2))^2/2]= (1/M)*(25/2)...[3].

Also, the x coordinate of the center of mass is given by,x bar = (1/M)*∫∫∫x*dVTherefore,x bar = (1/M)*∫[5/2x, 9-x^2]∫[0, x^2+5/2x]x*dA= (1/M)*∫[5/2x, 9-x^2]∫[0, x^2+5/2x]xdA...[4].

The limits of integration in the above equation are from 5/2x to 9-x^2 for x and from 0 to x^2+5/2x for y.To evaluate the above integral, we need to swap the order of integration. Therefore, x bar = (1/M)*∫[0, 3]∫[5/2, (9-y)^0.5]xy*dxdy...[5].

The limits of integration in the above equation are from 0 to 3 for y and from 5/2 to (9-y)^0.5 for x.

Substituting the values and evaluating the integral, we get x bar = (1/M)*[63/8]= (1/M)*(63/8)...[6]Thus, the centre of mass of the region is bounded by y=9-x^2 y=5/2x, and the z-axis is (3.5, 33/8).

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The initial center mass of the two bricks is 2 kg.

The center mass of the two bricks is determined by combining the momentum of the two bricks, with one as the reference point.

The initial center mass of the two bricks is calculated as follows;

\(M_{cm} = \frac{M_0 + M_1}{v_1 + v_2} \\\\M_{cm} = \frac{5(0) \ + \ 2(3)}{0 + 3} \\\\M_{cm} = 2 \ kg\)

Thus, the initial center mass of the two bricks is 2 kg.

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One wave's 150 degree positive displacement is exactly cancelled by the second wave's 150 degree negative displacement. The resulting wave has zero amplitude.

The difference in length a wave frontal must go between the frame of reference and the element of interest is used to determine the wave face time delay. After then, the time is determined by multiplying the distance by the sound speed.

A delay unit is a multi-path structure that offers a predetermined time delay or configurable time delay. It differs from a phase shifter yet is comparable to one. Typically, a phase shifter offers a predetermined insertion phase difference.

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To determine the speed of the ice at the bottom of the ramp if its motion is opposed by a constant friction force of 10.0 N parallel to the surface of the ramp, you would need to consider the forces acting on the ice block and use Newton's laws of motion to analyze its motion.

Newton's second law states that the acceleration of an object is equal to the net force acting on it divided by its mass. In this case, the acceleration of the ice block would be determined by the balance of the friction force acting to slow it down and the gravitational force acting to accelerate it down the ramp.

If the ramp is inclined at an angle θ relative to the horizontal, the gravitational force acting on the ice block can be calculated using the equation:

Fg = mgsinθ

where Fg is the gravitational force, m is the mass of the ice block, and g is the acceleration due to gravity.

The acceleration of the ice block can then be calculated using the equation:

a = (Fg - Ff)/m

where a is the acceleration of the ice block, Fg is the gravitational force, Ff is the friction force, and m is the mass of the ice block.

Solving for the acceleration, we get:

a = (mgsinθ - Ff)/m

a = gsinθ - Ff/m

The speed of the ice block at the bottom of the ramp can then be calculated using the equation:

vf = vi + at

where vf is the final speed of the ice block, vi is the initial speed of the ice block (assuming it starts from rest), a is the acceleration of the ice block, and t is the time it takes for the ice block to reach the bottom of the ramp.

You would need to know the mass of the ice block, the angle of the ramp, and the time it takes for the ice block to reach the bottom of the ramp in order to calculate its final speed.

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This is a what do you think question.

Answer:A gas heater working

Explanation:because from the system of it it could be coal or just air being heated up it takes energy to make it hot! In other words convection

The conversation of seawater or brackish water to fresh water is called desalination. Option C is the correct answer.

Desalination is the process of converting seawater or brackish water into fresh water, making it suitable for human consumption and agricultural and industrial uses.

This process involves removing the dissolved salts and minerals from water, leaving behind clean and potable water.

Desalination can be achieved through several methods such as reverse osmosis, distillation, and electrodialysis.

Desalination is a crucial technology in areas where fresh water is scarce, such as arid and coastal regions.

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Answer:

v0=72 km/h:3.6=20 m/s

a=F/m=10/2=5m/s^2

t=(vf-v0)/a

t= (30-20)/5=10/5=2s

The energy in ordinary light is greater than the energy in ordinary sound

Energy is the ability to perform work in physics. It could exist in several different forms, such as potential, kinetic, thermal, electrical, chemical, radioactive, etc. Additionally, there is heat and work, which is energy being transferred from one body to another.

Energy is a physical system's ability to perform labor. The capital letter E is a typical sign for energy. The joule, denoted by the letter J, is the common unit. The energy produced by one newton's (1 N) worth of force acting over one meter's (1 m) worth of displacement is measured in joules (1 J). Because it is a fundamental human requirement, energy plays a significant role in our daily lives.

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Answer:

the man who are you support Russia and your birthdayto is made by the day is in Today Android of the world ye hai song

Explanation:

there are not false and your family is not a well of you and you t are

Answer:

quantitative

Explanation: quantitative research is better for scientist.

Answer:

I guess the answer is charging by friction

The velocity of the sailboat is 12.5 meters per second.

Velocity is a measure of how fast an object is moving in a specific direction. It is calculated by dividing the distance traveled by the time it took to travel that distance. The unit of velocity is meters per second (m/s) or kilometers per hour (km/h).

To understand how the velocity of the sailboat was calculated, it is important to understand the concept of velocity and how it is measured. Velocity is a vector quantity, meaning it has both magnitude (size) and direction. The magnitude of velocity is measured in units of distance per unit of time, such as meters per second (m/s) or kilometers per hour (km/h). The direction of velocity is the direction in which an object is moving.

In this scenario, the sailboat was in a 1000-meter race and reached the finish line in exactly 1 minute and 20 seconds, or 80 seconds. To calculate the velocity of the sailboat, we used the formula: Velocity = distance / time. Substituting in the given values, we have: Velocity = 1000 meters / 80 seconds = 12.5 meters per second. This means that the sailboat was moving at a speed of 12.5 meters per second.

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Answer:

1. Machines can increase the speed of a task, allowing more work to be done in a shorter amount of time.

2. Machines can reduce the amount of physical effort required to complete a task, allowing for more efficient use of energy.

Answer:

the bottom one is wollsiegel

True, some of the tiles in Byzantine mosaics were placed at an angle to reflect the light. This was done to enhance the visual appearance and create a dazzling effect.

Byzantine mosaics were used to decorate and embellish the walls, floors, and ceilings of buildings such as churches, palaces, and public places. They were made of small, colored, and shiny tiles called tesserae, which were arranged in various patterns to create intricate and sophisticated designs. One of the notable features of Byzantine mosaics was the use of tesserae at different angles to reflect the light and create a mesmerizing effect. The artists who created the mosaics were highly skilled and trained, and they knew how to use the properties of light to enhance their art. By placing the tiles at an angle, they could make the light bounce off the surface and produce a sparkling and radiant effect. The use of angles also allowed the artists to create depth, texture, and movement in their designs, which made them more dynamic and engaging. The Byzantine mosaics are still admired and revered for their beauty and craftsmanship, and they continue to inspire and influence artists and designers to this day.

In summary, some of the tiles in Byzantine mosaics were placed at an angle to reflect the light and create a dazzling effect. This technique was used by the artists to enhance the visual appearance and create depth, texture, and movement in their designs. The use of tesserae at different angles is one of the defining characteristics of Byzantine mosaics, and it reflects the skill and creativity of the artists who made them.

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Answer:

\(\huge\boxed{\sf P = 0.25 \ Watts}\)

Explanation:

Work = W = 0.5 J

Time = t = 2 sec

Power = P = ?

\(\displaystyle P=\frac{W}{t}\)

\(\displaystyle P=\frac{0.5}{2} \\\\P = 0.25 \ Watts\\\\\rule[225]{225}{2}\)

Answer:

yea thats right

Explanation:

A) Minimum recommended spiral parameter: 150.03m.

b) Distance P: 150.03m.

c) Distance Q: 4.122m.

d) Angle Φs: 16°30'14.0".

e) Distance Tc: 150.03m.

a) Calculation for the minimum recommended spiral parameter:

Design radius (R) = 300 m

Maximum superelevation (e_max) = 0.06 m/m

Spiral Parameter (A) = (R + e_max) / 2

A = (300 m + 0.06 m/m) / 2

A ≈ 150.03 m

b) Calculation for the distance P:

Distance P is equal to the length of the first spiral curve, which is the same as the minimum recommended spiral parameter.

P ≈ 150.03 m

c) Calculation for the distance Q:

Distance Q represents the length of the circular curve. It is given by the formula:

Q = (Deflection angle at Point of Intersection) / (Degree of Curve, D)

Deflection angle at Point of Intersection = 16°30'14.0"

Converting the angle to decimal degrees:

16° + (30'/60) + (14.0"/3600) = 16.504°

Q = 16.504° / (360° / D)

Q ≈ D / 21.814

Since the RAU80 has 4 lanes, the degree of curve (D) is 360° / 4 = 90°.

Q ≈ 90° / 21.814

Q ≈ 4.122 m

d) Calculation for the angle Φs:

The angle Φs is the deflection angle at the Point of Intersection.

Φs = 16°30'14.0"

e) Calculation for the distance Tc:

Distance Tc is equal to the length of the second spiral curve, which is the same as the minimum recommended spiral parameter.

Tc ≈ 150.03 m

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The average rate of temperature change per minute experienced by the thermometer during this time interval is -15°C/minute.

To find the average rate of temperature change per minute experienced by the thermometer, we can use the formula:

Average rate of temperature change = (Final temperature - Initial temperature) / Time interval

Given:

Initial temperature = 25°C

Final temperature = 10°C

Time interval = 1 minute

Using the formula, we can calculate the average rate of temperature change:

Average rate of temperature change = (10°C - 25°C) / 1 minute

= (-15°C) / 1 minute

= -15°C/minute

Therefore, the average rate of temperature change per minute experienced by the thermometer during this time interval is -15°C/minute.

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--The complete Question is, A thermometer is taken from a room where the temperature is 25°C to the outdoors, where the temperature is -1°C. After one minute, the thermometer reads a temperature of 10°C. What is the average rate of temperature change per minute experienced by the thermometer during this time interval?--

Answer:

3.75m/s²

Explanation:

a=v-u. then you substitute the values

t

Answer:

The key benefits to this is the athlete thinks and reflects for themselves which is a vital part of the Learning Styles Model. This technique is most useful for more experienced athletes who like to have involvement and their own opinions about their performance.

Explanation: