Explain why knowing a combination of grappling and striking martial arts is advantageous during a street self defense scenario. Explain how both are beneficial

The types of energy that move through the system are as follows: potential energy, kinetic energy, mechanical energy, and electrical energy.The water stored in the dams contains potential energy.

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Answer:

Explanation:

I'll try to answer this is clearly as possible without talking in circles. If an object is launched into projectile motion, something was behind it, pushing it forward. Once this launching was done, the launching mechanism was no longer important to the object and the object is free to keep moving forward at that same velocity forever...if that was the only thing at play here. But, because of air resistance and GRAVITY, the object is pulled down and eventually hits the ground. In other words, if there was no such thing as gravity, an object would continue to move forever in the diretion and at the speed at which it was launched.

The y-component of the vector is 4.97 m.

A vector is a quantity that has both magnitude and direction.

To calculate the y-component of the vector in the diagram above, we use the formula below.

Formula:

From the question,

Given:

Substitute these values into equation 1

Hence, the y-component of the vector is 4.97 m.

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Answer: 2,500 cm3

i think i not that sure

Explanation:

Answer:

20mA

Explanation:

because it is connected in series with the ammeter

The current through the 40Ω resistor in the given circuit is 20mA, which is explained below.

The volate across resistor R is 1V, as indicated by the voltmeter.

Since the potential of the battery is 3V, according to Kirchoff's voltage law, the voltage drop across 20Ω resistors must be 1V each since they are indentical.

Let a total current I passes through 20Ω resistor as it is connected to the battery in series. From Ohm's law:

20Ω × I = 1V

I = 50mA

Now the current indicated by the ammeter is 20mA which splits according to the reistors of 15Ω and 30Ω which are connected in parallel. Then again the current adds up to 20mA when leaving the set of parallel resistors, through the 40Ω resistor.

So the current through the 40Ω resistor is 20mA

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Answer:

C

Explanation:

Since the reactant is higher in an exothermal reaction it will always be higher the product.

Using the left hand rule, if current points up and the field is toward you,  the  motion points up.

The left hand rule states that if the thumb, the fore finger and the middle finger are held mutually perpendicular to each other, the thumb points in the direction motion, the middle finger points in the direction of current while the fore finger points in the direction of the magnetic field.

Thus using the left hand rule, if current points up and the field is toward you,  the  motion points up.

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Answer:

0.44 m/s^2

Explanation:

initial velocity = 0  (since the child starts from rest)

distance covered by the child = 2 m (the length of the slide)

time taken = 3 sec

acceleration of the child = ?

using Newton's equation of motion

s = \(ut + \frac{1}{2}at^{2}\)

where s is the distance covered by the child

u is the initial velocity

a is the acceleration

t is the time spent

substituting values, we have

2 = 0(3) + \(\frac{1}{2}a*3^{2}\)

2 = 9a/2

4  = 9a

a = 4/9 = 0.44 m/s^2

Answer:

A. Water pollution contributes to water scarcity.

Explanation:

Water pollution occurs when materials are disposed in water body, thus making it unfit for use. A polluted water can not be used for various purposes that water can be used for. Examples include: recreation, drinking, washing etc.

Water scarcity is the situation when available water is not sufficient for the use of organisms in a community. This majorly occurs in arid area.

Thus, since a polluted water renders water to be useless, therefore water pollution contributes  to water scarcity.

Answer:

Water contributes to water scarcity

Explanation:

pls nobody has ever given me brainiest pls give me brainliest

A student ties a lead cube to an oval-shaped block to prevent it from floating and immerses it in water density as part of a study to identify the sort of wood it is composed of.

The term "density" (also known as "volumetric mass density" or "specific mass") refers to a substance's mass per unit of volume. Although the Latin letter D may also be used, the sign most frequently used for density is (the lower case Greek letter rho).

According to legend, Archimedes shouted "Eureka!" as he rushed through the Sicilian streets. ("I've discovered it!") He had figured out what density was. Everyone has spent a significant amount of time in water during their life. The second thing Archimedes noticed was that he felt lighter floating.

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Answer:

for your first question it is the first answer that is there for your second question it is the second answer that is there

Answer: i cant help u with  that its a grade above me

Explanation:

The second stone hits the ground exactly one second after the first.

The distance traveled by each stone down the cliff is calculated using second kinematic equation;

\(h = v_0_yt + \frac{1}{2} gt^2\)

where;

\(h = \frac{1}{2} gt^2\)

The time taken by the first stone to hit the ground is calculated as;

\(t_1 = \sqrt{\frac{2h}{g} }\)

When compared to the first stone, the time taken by the second stone to hit the ground after 1 second it was released is calculated as

\(t_2 = \sqrt{\frac{2h}{g} } + 1\)

\(t_2 = t_1 + 1\)

Thus, we can conclude that the second stone hits the ground exactly one second after the first.

"Your question is not complete, it seems be missing the following information;"

A. The second stone hits the ground exactly one second after the first.

B. The second stone hits the ground less than one second after the first

C. The second stone hits the ground more than one second after the first.

D. The second stone hits the ground at the same time as the first.

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Answer:

1:D

2:B

3:B

4:D

5:A

13:A

14:A

15:B

16:A

7:A

9:B

8:B

11:C

12:A

Explanation:

Sorry for incomplete answers

Answer:Electromagnetic force, like all forces, is measured in Newtons. Electrostatic forces are described by Coulomb’s law, and both electric and magnetic forces are covered by the Lorentz force law. However, Maxwell’s four equations provide the most detailed description of electromagnetism.

Explanation:

Answer:

attractive, repulsive, produces light & electricity

Explanation:

edge 2021

Answer:

Neil Armstrong

Explanation:

Answer:

Neil Armstrong.

Explanation:

. PLEASE GIVE BRAINLIEST.

Answer:

here you go

Explanation:

so it might seem that a body on the surface of Jupiter would weigh 300 times as much as on Earth. ... But the radius of Jupiter is about 10 times that of Earth, weakening gravity by a factor of 100, resulting in 3 times its Earth weight.

Answer:

The answer is D, cartilage.

Answer:

multiply that and divided by 45

Answer:

4.444444444 km

Explanation:

200/45=4.444444444

The bus travels 4.444444444 kilometers in a minute

Answer:

\(\huge\boxed{\sf a_{c} = 15.6\ m/s^2}\)

Explanation:

Given Data:

Radius = r = 40 m

Speed = v = 25 m/s

Required:

Centripetal Acceleration = \(\sf a_{c}\) = ?

Formula:

\(\sf a_{c} = \frac{v^2 }{r}\)

Solution:

\(\sf a_{c} = \frac{v^2}{r} \\\\a_{c} = \frac{(25)^2}{40} \\\\a_{c} = \frac{625}{40} \\\\a_{c} = 15.6 m/s^2\\\\\rule[225]{225}{2}\)

Hope this helped!

The acceleration of the objects can be determined by applying Newton's second law and considering the tension in the string. The acceleration is found to be approximately 2.31 m/s², directed towards the heavier object.

To find the acceleration of the objects, we can consider the forces acting on each object. Let's assume the 39.0 kg object is hanging vertically, and the 18.0 kg object is on the horizontal surface. The tension in the string will be the same for both objects.

For the 39.0 kg object:

The gravitational force acting on it is given by F₁ = m₁g, where m₁ is the mass of the object and g is the acceleration due to gravity. As the object is accelerating downwards, there is a net force acting on it in the downward direction. The tension in the string is directed upwards. So, we have T - F₁ = m₁a, where a is the acceleration of the system. Therefore, T = m₁(g + a).

For the 18.0 kg object:

The gravitational force acting on it is F₂ = m₂g, where m₂ is the mass of the object. As the object is on a horizontal surface, the net force acting on it is given by T - F₂ = m₂a. Since the object is moving towards the right, the acceleration is directed towards the right.

Since the tension in the string is the same for both objects, we can equate the two expressions for T: m₁(g + a) = T = m₂g - m₂a. Solving this equation for a, we get a = (m₂g) / (m₁ + m₂) - (m₁g) / (m₁ + m₂). Substituting the given values, we find a = 2.31 m/s². The negative sign indicates that the acceleration is towards the heavier object.

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Answer:

Transit method

Explanation:

The magnitude of the centripetal acceleration of the car is 0.0314 m/s².

centripetal acceleration

Centripetal acceleration is described because the assets of the motion of an item, traversing a circular path. Any object that is shifting in a circle and has an acceleration vector pointed in the direction of the center of that circle is referred to as Centripetal acceleration.

a = v²/ r

r = 3500 m (SI unit)

t = 200 s

circumference = C

C = 2 * π * r

C = 2 * 3.141 * (3500 m)

C = 21987 m

v = D / t

v = (21987 m) / (200 s)

v = 109.935 m/s

a = (109.935 m/s)² / (3500 m)

a = (109.935 m/s²) / (3500 m)

a = 0.0314 m/s²

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Answer:

A: Excess H+ is absorbed by bicarbonate ions.

Explanation:

Answer:

The length of days and nights change with the seasons.

Explanation:

Distance from the equator along with the tilt of Earth's rotational axis contributes to day and night period differences. Daylight hours or the period of sunlight exposure vary due to the inclined axis of the latitudes. In the northern hemisphere during summers, the tilt of the axis is towards the sun which brought more sunlight to the exposed region. And therefore the length of day hours is more than the southern hemisphere which at the same time will be tilted away from the sun.

Answer:

pablo

Explanation:

si pablo come tacos con barbacoa

Answer:

The energy was stored as chemical energy in Sue' muscle before it was transformed into mechanical energy that moves the pump handle to ump the tyre

Explanation:

In pumping up the tyre, the valve of manual pump is attached airtight to the tyre tube

As the handle of the pump is pulled up or out, air rushes into the pump from the atmosphere through the inlet valve

As the handle pushed in, the inlet valve closes and the air is forced into the tyre tube by difference in pressure and as the tube is filled, more pressure is required to enable the tube expand and build pressure inside to maintain a circular cross section while carrying load

According to Gay Lussac's Law, temperature of the air in the pump increases as its pressure increases

Given that Sue provides the energy for pumping the tyre, the energy was stored as chemical energy in Sue's muscles which is then used in moving the pump handle in the up and down motion required to pump the tyre

You are approximately 1170.96 meters away from the location of the firework.

We know that the time difference between seeing the light and hearing the sound is 3.50 seconds. The speed of sound in air depends on the temperature, so we need to use the temperature information to calculate the speed of sound. The formula for the speed of sound in air at a given temperature is:

v = 331.3 + 0.606T

where v is the speed of sound in meters per second, and T is the temperature in degrees Celsius.

Substituting T = 5.00 degrees Celsius, we get:

v = 331.3 + 0.606 × 5.00

v = 334.56 m/s

Now we can calculate the distance to the firework using the formula:

d = v × t

where d is the distance, v is the speed of sound, and t is the time difference between seeing the light and hearing the sound.

Substituting v = 334.56 m/s and t = 3.50 s, we get:

d = 334.56 × 3.50

d = 1170.96 m

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If a screw had a circumference of 16mm and a lead of 0.4mm and 15N of force is applied, the force produced would be 0.375N.

The mechanical advantage of a screw is determined by its lead, which is the distance traveled by the screw in one complete rotation. The formula for calculating the force produced by a screw is F = (T * p) / (2πr), where F is the force produced, T is the torque applied, p is the lead of the screw, and r is the radius of the screw.

In this case, the screw has a circumference of 16mm, so its radius is 16mm / 2π = 2.546mm. The lead of the screw is given as 0.4mm, and the force applied is 15N. Substituting these values into the formula, we get:

F = (T * p) / (2πr)

  = (15N * 0.4mm) / (2π * 2.546mm)

  = 0.375N

As a result, the screw produces 0.375N of force. This means that for every 15N of force applied to the screw, it produces a mechanical advantage of 0.375N, which is a measure of the force amplification achieved by the screw.

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Yes, PNS system causes more frequent depolarizations to the SA (Sinoatrial) node.

The PNS (Parasympathetic Nervous System) is responsible for decreasing the heart rate. It does so by releasing acetylcholine, which stimulates the M2 muscarinic receptors found in the SA node. When acetylcholine binds to M2 receptors, it opens potassium channels, leading to hyperpolarization of the SA node cells.As a result, the pacemaker potential threshold increases and requires more time to reach the threshold for depolarization, thus reducing the heart rate. Therefore, by decreasing the potassium ion permeability of the ECF, it slows the heart rate, resulting in fewer depolarizations in the SA node, causing a lower heart rate.

In summary, the parasympathetic nervous system (PNS) causes more frequent depolarizations to the SA node. The PNS slows down the heart rate, but this does not mean that the pacemaker potential is reduced. Instead, the pacemaker potential is hyperpolarized, increasing the threshold for depolarization. Thus, fewer action potentials reach the threshold, and heart rate is decreased. So, the decrease in potassium permeability in the ECF and an increase in the parasympathetic nervous system causes hyperpolarization of the SA node and increases the threshold for depolarization. This, in turn, leads to fewer depolarizations in the SA node, causing a slower heart rate.

Therefore, it can be concluded that the PNS system causes more frequent depolarizations to the SA node and decreases heart rate by increasing the threshold for depolarization, which is accomplished by hyperpolarizing the pacemaker potential.

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To find the volume of the ring-shaped solid that remains after the drill bores a hole through the sphere, you can subtract the volume of the drilled cylinder from the volume of the original sphere.

The volume of the sphere is given by:

V_sphere = (4/3) * π * r³

where r is the radius of the sphere. Substituting r = 8 cm, we get:

V_sphere = (4/3) * π * (8 cm)³

= 2144π/3 cm³

The volume of the cylinder that is drilled out of the sphere is given by:

V_cylinder = π * r² * h

where r is the radius of the cylinder and h is its height. The radius of the cylinder is given as 3 cm, which is the same as the radius of the drill. The height of the cylinder can be found using the Pythagorean theorem, which states that in a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides. In this case, the hypotenuse is the diameter of the sphere, which is equal to twice the radius, or 16 cm. The other two sides are the radius of the sphere (8 cm) and the height of the cylinder (h). Therefore, we have:

h² = (16 cm)² - (8 cm)²

= 192 cm²

h = √192 cm

h ≈ 13.86 cm

Substituting r = 3 cm and h ≈ 13.86 cm, we get:

V_cylinder = π * (3 cm)²* 13.86 cm

≈ 389.9 cm³

Therefore, the volume of the ring-shaped solid that remains is:

V_ring = V_sphere - V_cylinder

= 2144π/3 cm³ - 389.9 cm³

≈ 2002.9π/3 cm³

≈ 667.6π cm³

Hence, the volume of the ring-shaped solid that remains is approximately 667.6π cm³.

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