An object launched at ground level with an initial speed of 50.0 m/s at an angle of 30.0degrees above the horizontal. It strikes a target above the ground 3.0 seconds later.What is the vertical distance of the object from where it was launched to where it lands?

Answer: An electrostatic generator, or electrostatic machine, is an electrical generator that produces static electricity, or electricity at high voltage and low continuous current.

Explanation:

Answer:

electrostatic generator

Explanation:

Manual electrostatic generators develop electrostatic charges of opposite signs rendered to two conductors, using only electric forces, and work by using moving plates, drums, or belts to carry electric charge to a high potential electrode.

The sample size of the standard deviation of a sample that was reported to be 30 is calculated as 8.

The process of deciding how many observations or replicates to include in a statistical sample is known as sample size determination.

Any empirical study with the aim of drawing conclusions about a population from a sample must take into account the sample size as a crucial component.

Standard deviation = square root of ∑(x-average)^2 / N = 30

∑(x-average)^2 = 7200

Putting the values in standard deviation formula where N = sample size

30 = sqrt of ∑(x-average)^2 / N

Then squaring off on both sides,

900 = 7200/N

⇒N = 8

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A glass stopper has a volume =  16 cm^3

mass = 40 g

Therefore, density (g/cm^3) = MASS/ VOLUME

DENSITY = 40/16  g/cm​​​​​^3​

Density = 2.5 g/cm​​​​​^3​

In kg/m^3 => 2.5*10^-3 kg / 10^-6m^3 = 2500 kg/m^3

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As we see in the scatterplot graph and the briefing given below the most appropriate option is A-As age increases, weight increases.

If you follow the arrow's trajectory, your finger will move to the right, increasing age (on the horizontal axis).

Additionally, as your finger rises, the weight (on the vertical axis) does as well.

Age and weight increase in tandem since both processes are ongoing.

The association between two numerical variables measured for the same individuals is displayed in a scatterplot. One variable's values are displayed on the horizontal axis, and the other variable's values are displayed on the vertical axis. On the graph, each individual in the data is represented by a point.

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The complete question is-

Analyze the scatterplot graph.

Which trend does the graph show?

A-As age increases, weight increases.

B-As weight decreases, age increases.

C-As age increases, weight remains the same.

D-As weight increases, age remains the same.

The magnitude of the electric field at point P which is 0.20 m to the right of the positive charge is 3,3375 N/C.

The electric field(E) due to an isolated point charge is

E= KQ/r^2

Here K is the Electrostatic Constant = 1/4π∈ = 9 x 10^9 N m^2/C^2

Q is the magnitude of the charge

r is the distance of the point from the charge

Putting q= 15 nC and r = 0.20 m in the given equation

E = 9 x 10^9 x 15 x 10^-9/(0.20)^2

E = 3375 N/C

Hence, the magnitude of the electric field at point p which is 0.20 m to the right of the positive charge is 3,3375 N/C.

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Answer: Navigating by air and by boat is generally done using vectors. Planes are given a vector to travel, and they use their speed to determine how far they need to go before turning or landing.

The mass of lead required to make a 1.00 cm3 fishing sinker is 11.3g.

What is mass?

Mass is a metric used in physics to express inertia, a fundamental characteristic of all matter. A mass of matter's resistance to altering its direction or speed in response to the application of a force is what it essentially is. The change that an applied force produces is smaller the more mass a body has.

Given :

Density of lead = 11.3 g/cm3

Volume of  sinker  =  1.00 cm3

One of a substance's attributes is density, which is calculated by dividing the mass by the volume. Mathematically:

Density : Mass / volume

therefore after putting the values,

mass= 11.3g

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The final solution sales will always be fractions. The final solution deals do not need to be integers.

Linear programming (LP) or Natural Optimization is the issue of maximizing or underestimating a straightforward work subject to linear restrictions.

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The decibel level of a sound that is twice as intense as 90dB is 93.013dB.

What is a decibel level?

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When we compare our place in the universe with a very distant place, we can say that all the laws of physics are the same in each place.

Physics laws are the result of scientific observations made after very long years. The nature of physics laws is absolute and remains intact even in the presence of external factors.  They are conservative in terms of quantity, can be applied anywhere in the universe, are present everywhere, and remain stable. Some of these laws are as follows:

1. Law of universal gravitation

This law states that every object in the universe attracts each other in direct proportion to their combined mass and is inversely proportional to the distance between them.

2. Conservation of mass and energy

According to this law, mass, and energy can neither be created nor be destroyed. They can only be transferred from one form to another.  

3. Law of inertia

This is Newton's first law of motion. It states that a body can resist the change in its motion unless the application of an external force. The property of resisting the change in motion is called inertia.

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The average speed of blood is less than 0.90 m/s.

The blood flows in the body of a person at the speed of less than 0.90 m/s. In miles per hour, the value is 2 which means the blood flows at the rate of 2 miles per hour. We know that blood is very important for the survival of all humans. This blood is a source of transportation of oxygen and waste material in the body like carbondioxide gas. This speed of of less than 0.90 m/s is optimum for the exchange of gases between blood and cell.

So we can conclude that the average speed of blood is less than 0.90 m/s.

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Early sulfate reducers set the stage for the evolution of

b) photosynthesis, the first form which harvested hydrogens from h2s.

The two energy-carrying molecules ATP and NADPH are then added to the Calvin Cycle in plants along with carbon dioxide to produce the glucose molecule, which has a longer half-life than the other two energy-carrying molecules.

The Krebs Cycle is used by bacteria. Carbon fixation, reduction reactions, and RuBP regeneration all take place in three steps.

Even though they only occur when light is present, these processes are known as light-independent reactions.

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The  reaction forces are as follows:

Reaction forces are the force which act in an opposite direction to an applied force.

According to Newton's third law of motion, action and reaction are equal but oppositely-directed.

Considering the given forces, the reaction forces are as follows:

A baseball bat hits a ball = the reaction force is that of the ball hitting the bat

A bowling ball pushes up against the pins = the pins pushing against the bowling ball

Air particles push outward against a balloon = the walls of the balloon pushing against the air particles

During an earthquake, tectonic plates move = the weight of the tectonic plates.

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Fundamental analysis forecasting technique links exchange rates to

macroeconomic variables.

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Answer:

10^24 kilo

Explanation:

the moon's mass is 10^24

Using the python interpreter as a calculator, the volume of the sphere having radius 5 is calculated as 523.5987749999999.

The volume of the sphere is 523.5987749999999

The Python interpreter is a virtual machine, which means that it is computer simulation software.

This specific virtual machine is a stack machine; to carry out its tasks, it manipulates a number of stacks (as contrasted with a register machine, which writes to and reads from particular memory locations).

Interpreted terminology

Python is an interpreted language, therefore programmers written in it are translated from their source code into bytecode before being run by the Python virtual machine.

Because Python code does not need to be created and linked like code for other popular compiled languages, such C and C + +, it differs from these languages.

Given that

Pi = 3.14159265

r = 5

V = 4/3 x π x r x 3

V = 523.5987749999999

Print (The volume of the sphere is: 1, V)

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By using uniform motion, the displacement of a fallen crate after 2.9 seconds is  41.209 meters.

We need to know about uniform motion to solve this problem. The uniform motion is an object's motion under acceleration. It should follow the rule

vt = vo + a . t

vt² = vo² + 2a . s

s = vo . t + 1/2 . a . t²

where vt is final velocity, vo is initial velocity, a is acceleration, t is time and s is displacement.

From the question above, we know that

t = 2.90 s

vo = 0 m/s

a = g = 9.8 m/s²

By substituting the given parameters, we can calculate the displacement with the third equation

s = vo . t + 1/2 . a . t²

s = 0 . 2.9 + 1/2 . 9.8 . 2.9²

s = 0 + 41.209

s = 41.209 m

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A weight gain of 1.49 lb (0.68 kg) per month is expected from birth until 6 months

A newborn grows roughly one inch every month throughout the first six months. Between six months and a year, growth slows to around a half inch every month. A baby boy's average length at six months is around 26.5 inches (67.6 cm), whereas a baby girl's average length is approximately 25.75 inches (65.7 cm). Boys average 29.75 inches (75.7 cm) while girls average 29 inches at one year (74 cm). During the first six months, he grew quickly, gaining 1.49 pounds each month and one inch in length. The following are characteristics of the first 6 months.

a.) Upper limbs and head grow more quickly b.) Primitive reflexes are present, including a strong suck and gag reflex    c.) Infant is an obligate nose breather d.) Posterior fontanel closes by 2-3 months

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The distance traveled by a rock on mercury due to gravity is 100.96.

given that,

acceleration due to gravity, g = 3.59 m/s²

mass of the rock = 21 g

time = 7.5 s

distance traveled =?

using the equation of motion,

s= ut + 1/2 at^2

since u = 0
s = 1/2 x 3.59 x 7.5 x 7.5 = 100.96

Mercury is roughly 0.383 times the size of Earth and just 0.055 as massive, with a mean radius of about 2,440 km and a mass of 3.30 1023 kg. As a result, Mercury is the Solar System's smallest and least massive planet. Mercury has a surface gravity of 3.7 m/s2, which is equal to 0.38 g, although this is due to its high density, which is a solid 5.427 g/cm3, which is higher than Earth's 5.514 g/cm3.

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The correct answer is an option (b) 2.30 kg.

Density is denoted by the symbol 'p'. The density of a substance is directly proportional to its mass and inversely proportional to its volume. It means that with an increase in mass density also increases and with a decrease in volume density also decreases.

The volume of the intravenous glucose solution is v.

v = 2 L

The density of the intravenous glucose solution is p.

p = 1.15 mL

The mass of the intravenous glucose solution is,

1 L = 1000 mL

2 mL = 2000 mL

[tex]Density = \frac{Mass}{ Volume}[/tex]

[tex]p = \frac{m}{v} [/tex]

[tex]1.15 = \frac{m}{2000} [/tex]

m = 1.15 × 2000

m = 2300 g

m = 2.30 kg.

The mass of the intravenous glucose solution is 2.30 kg.

Therefore, the correct answer is an option (b) 2.30 kg.

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The Speed of the athlete is 5.59 m/s

Speed is defined as the ratio of the distance covered and the time taken

The units of speed can either be m/s, km/hr, mil/hr, etc.

The distance covered by the athlete = 42.195 km

Distance in meter = 42195 * 1000 = 42195 m

Time taken = 2 * 3600 s + 5 * 60 s + 42 s

Time taken = 7542 s

Speed = 42195 m/7542 s

Speed = 5.59 m/s

In conclusion speed is ratio of distance and time taken.

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The empirical formula of the product gexcly is Ge4Cl.

a.) In empirical formula problem one must first find the mass % of the elements in the compound. Since the total mass of the final product was 3.69g we find that:

3.69g total-1.25g germanium = 2.44g chlorine

1.25g germanium/3.69 g total (100) = 33.88%

44g chlorine/3.69 g total (100) = 66.12%

b.) Then change the % to grams

33.88%→3.38g of Ge

72.23%→6.61g of Cl

c.) Next, divide all the masses by their respective molar masses.

3.38g /72.64gm-1 = 0.0465 moles Ge

6.61g/35.45gm-1 = 0.1864 moles Cl

d.) Pick the smallest answer of moles and divide all figures by that.

0.04 moles Ge / 0.0465 = 1

0.1864 moles Cl / 0.0465 = 4.00

Since our answer for chlorine is a whole number, we use them as coefficients for the product

e.) Lastly, the coefficients calculated in the previous step will become the subscripts in the chemical formula.

Ge = 4

Cl = 1

Ge4Cl

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The radius of a sphere is the distance between the centre point of the sphere to the surface of the sphere.

r = d / 2

A = 4 π r²

r = √ ( A / 4 π )

V = 4 / 3 π r³

r = ∛ ( 3 V / 4 π )

r = Radius of the sphere

d = Diameter of the sphere

A = Surface Area of the sphere

V = Volume of the sphere

A sphere is the 3-dimensional form of a circle. Since the radius of the sphere is a measure of length, its unit is usually meter.

Therefore, the radius of a sphere is the distance between the centre point of the sphere to the surface of the sphere.

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Answer:increases levels of hormones in the brain

Explanation: because when you go through puberty you start to get more hormones

0.1111 W/m²  is the sound intensity at a distance of 27 m from the generator.

The amount of energy travelling through a unit area in a unit of time perpendicular to the direction of the sound waves is known as the sound intensity. Sound intensity is inversely related to the square of the sound's distance when all other factors are held constant. This is,

I ∝ (1/r²)

I = k/r²

Since k can be the constant of proportionality. k = Ir²

We can write this relation as

I₁ × r₁² = I₂ × r₂²

I₁ = 0.25 W/m²

r₁ = 16 m

I₂ = ?

r₂ = 24 m

0.25 × 16² = I₂ × 24²

I₂ = (0.25 × 16²)/24²

I₂ = 0.1111 W/m²

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Answer: The final velocity will be 30 m/s

Explanation:

[tex]v_{i} = 10 m/s\\a = 2.0m/s^{2} \\t = 10s\\v_{f} = ?\\\\a = \frac{v_{f} - v_{i}}{t} \\2.0 = \frac{v_{f} - 10}{10} \\20 = v_{f} - 10\\v_{f} = 30[/tex]

Answer:

30 m/s

Explanation:

[tex]\boxed{\begin{array}{c} \text{\underline{The Constant Acceleration Equations (SUVAT)}}\\\\\begin{aligned}v&=u+at\\\\s&=ut+\dfrac{1}{2}at^2\\\\ s&=\left(\dfrac{u+v}{2}\right)t\\\\v^2&=u^2+2as\\\\s&=vt-\dfrac{1}{2}at^2\end{aligned}\end{array}}[/tex]

[tex]\boxed{\begin{minipage}{9 cm}s = displacement in m (meters)\\u = initial velocity in m/s (meters per second)\\v = final velocity in m/s (meters per second)\\a = acceleration in m/s$^{2}$ (meters per second per second)\\t = time in s (seconds)\\\\When using SUVAT, assume the object is modeled\\ as a particle and that acceleration is constant.\end{minipage}}[/tex]

Given:

Substitute the given values into  v = u + at and solve for v:

[tex]\begin{aligned}v & = u+at\\\implies v & = 10 + 2(10)\\& = 10 + 20\\& = 30\; \sf m/s\end{aligned}[/tex]

Therefore, the final velocity of the vehicle is 30 m/s.

When a ball thrown straight upwards reaches the very top of its path, its acceleration is: equal to zero (0)

The fact that the acceleration at the highest point of the ball's trajectory is equal to zero is related to the fact that a transition point is reached in which the acceleration that is equal to gravity goes from being negative when the ball is going up to becoming positive at the instant in which it begins to descend due to the effect of the force of gravity.

In physics vertical launch upwards is the motion described by an object that has been launched vertically upwards in which the height and the effect of the earth's gravitational force on the launched object are taken into account.

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From the Newton's first law, we can see that the impressed force is equation the rate at which the momentum changes.

F = m(v - u)/t

F = force applied

m = mass of the body

v = final velocity

u = initial velocity

t = time

1) Deceleration of the person wearing the seatbelt is; 0 - 20/ 0.1 = -200 m/s^2

2) Force exerted = 50 Kg * ( -200 m/s^2) = -10000 N

3) Deceleration of the person stopped by the dashboard = 0 - 20/ 0.01 = -2000 m/s^2

4) Force exerted by the dash board on the person = 50 Kg * (-2000 m/s^2) = -100000 N

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The total photons at 660nm that are needed to be absorbed are 5.533 x 10²¹ in order to melt the ice.

Planck's equation is used to determine that the energy (E) of a photon is equal to hv = hc/λ, where this v is stated as the frequency of the electromagnetic radiation and λ as its wavelength.

Wavelength = 660nm = 6.60 x 10^-7 m

First, we find out the energy that is required to melt 5.0 x 10^2 grams of ice. This is given by:

Energy = mass multiplied by latent heat of fusion

Energy =   5.0 x 10^2g x 334 J/g

Energy = 167 x 10^3 J

So, we now have that to melt 5.0 x 10^2 g of ice, we need 334J of energy

Next, we can use Planck's equation which is:

Energy = (number of photons multiplied by Planck's constant x speed of light) / wavelength

167 x 10^3 J = [n * 6.64 x 10⁻³⁴ * 3 x 10⁸ ]/ 6.60 x 10^-7

n = 5.533 x 10²¹

5.533 x 10²¹ photons need to be absorbed by the ice in order to melt.

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