A runner weighing 70 kg, moving at a speed of 8.8 m/s, rounds

a bend with a radius of 25 m. What is the centripetal force

needed to keep this runner on the curve?

a 250 N

b 100 N

C 217 N

d 158 N

Answer:

The material is called a Lubricant.

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Answer:

How muen population lives in the South

Answer:

How many people live in the South

I'm not sure about the first one sorry

Answer:

11.3 g/cm^3

Explanation:

density = mass/volume

volume of rectangular prism = length * width * height

volume = (4.50 cm)(5.20 cm)(6.00 cm) = 140.4 cm^3

mass = 1587 g

density = (1587 g)/(140.4 cm^3)

density = 11.3 g/cm^3

Answer:

Total resistance is 96 ohm

Explanation:

Rs = R1 +R2 + R3 + R4 + R5 +R6 + R7 + R8

where R1 is lamp 1

R2 is lamp 2 n so on

Rs = 12 + 12 +12 + 12 +12 + 12 + 12 + 12( as each lamp is of resistance 12)

Rs = 96 ohm

GOOD LUCK FOR THE FUTURE! :)

activities you can do on a regular basis for physical education​?

If so

Answer:

the switching circuitry is opened the soft iron armature is replaced to tasty le macha the switching circuitry is closed explain what happens when the switch circuit is a wonder you know about the characteristics of open to close this which right take the example of an electric generator for an electric motor which rotates in half rotation and change the armature and just try it ok I am sorry

Explanation:

Both gravitational and electric forces decrease with the square of the distance between the objects, and both forces act along a line between them. In Coulomb's law, however, the magnitude and sign of the electric force are determined by the electric charge, rather than the mass, of an object.

Answer:

directly proportional

Explanation:

.........,.............

According to the given diagram, the c identifies the wavelength of the curve. Hence, option C is correct.

In order to characterize waveform signals that are transmitted across wires or into space, the term "wavelength" is used to refer to the separation between two identical positions (adjacent crests) in succeeding cycles. Typically, this length in wireless systems is measured in meters (m), centimeters (cm), or millimeters (mm) (mm). When describing the wavelength of infrared (IR), visible light (UV), and gamma radiation, units of 10-9 nanometers (nm) or angstroms (10-10 m) are more usually used.

The relationship between frequency and wavelength is inverse, with frequency being the number of wave cycles per second. A signal's wavelength shortens as its frequency rises, or we may say that the relationship between wavelength and refractive index is inverse.

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Answer:

The Kidneys

Explanation:

The Kidneys remove the toxic stuff that you dont need anymore. Therefore the kidneys rather than the everything else removes blood and toxic waste.

Answer:

1.F = 256 N

2.a = 8 m/s/s

By looking at the given information, you know force, and an acceleration. Therefore you have enough information to use the first formula.

F = ma

256 N = m * 8 m/s/s

m = 256 N/8 m/s/s

m = 32 Kg

Answer:

No. 2

Explanation:

The balanced nuclear reaction is shown by the following: ²³⁷₉₃ Np[tex]\rightarrow[/tex]⁴ ₂He +²³³₉₅ Am nuclear fission reaction.

There are two types of nuclear reactions which are nuclear fusion and nuclear fission .They involve the combination and disintegration of the element's nucleus respectively.

In nuclear fission, the nucleus of the atom is bombarded with electrons of low energy which splits the nucleus in to two parts .Large amount of energy is released in the process.It is used in nuclear power reactors as it produces large amount of energy.

In nuclear fusion,on the other hand, is a reaction which occurs when two or more atoms combine to form a heavy nucleus.Large amount of energy is released in the process which is greater than that of the energy which is released in nuclear fission process.

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Answer:

its b

Explanation:

The diagram which correctly represents the temperature of the two substances and the direction of heat flow is shown below.

Heat is also referred to as thermal energy and it can be defined as a form of energy that is transferred from one physical object to another, especially as a result of a difference in temperature.

During the process of heat conduction, heat is primarily transferred between objects with different degrees of temperature and materials that are directly in contact with each other.

In conclusion, heat is generally transferred from a hotter object (37°C represented by the orange circles) to a cooler object (0°C represented by the blue circles) as shown in the image attached below.

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Answer:

brings together the unmarried girls and young women of the country to cut reeds for the annual repairs

Answer:

The Umhlanga/Reed Dance brings together unmarried girls and young women of the country to cut reeds for the annual repairs to the windbreaks of the queen mother's village. It lasts for five days, and is also symbol of the unity of the nation.

Answer:

The vibrations from sound waves cause our ears to send signals to our brains to create sound. The speed of sound waves will determine the sound's pitch, or how high or low something sounds. Sound waves are important because they allow us to hear important messages and emergency signals to protect ourselves.

Explanation:

I hope this helps :)

Answer:

2.5 cm³

Explanation:

Use Boyle's Law

1×5=2×V

5=2V

V=5/2=2.5 cm³

Answer:

8.14n in mars

Explanation:

gravitational

Answer:

30kgm/s/15m/s=2kg

Explanation:mass=momentum/velocity

The  mass of the object is 2 kg.

The product of a particle's mass and velocity is its momentum. Momentum is a vector quantity, meaning it has both magnitude and direction. According to Isaac Newton's second equation of motion, the force acting on a particle equals the time rate of change of momentum.

Given that:

Velocity of the object: v = 15 m/s.

Momentum of the object: p = 30 kg m/s.

Let the mass of the object = m.

From the definition of momentum; we get:

momentum = mass × velocity

30 = 15 m

m = 2 kg.

Hence, mass of it is 2 kg.

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Answer:

[tex]\boxed {\boxed {\sf 133,500 \ Joules}}[/tex]

Explanation:

Since we are given the specific heat, mass, and change in temperature, we should use this formula for heat energy.

[tex]q=mc \Delta T[/tex]

The mass is 2 kilograms. Iron's specific heat is 445 Joules per kilogram degree Celsius. The temperature increases by 150 degrees Celsius.

[tex]m= 2 \ kg \\c= 445 \ J/kg \textdegree C\\\Delta T= 150 \textdegree C[/tex]

Substitute the values into the formula.

[tex]q= (2 \ kg)( 445 \ J/kg \textdegree C)(150 \textdegree C)[/tex]

Multiply the first two numbers. The kilograms will cancel.

[tex]q= 890 \ J/\textdegree C (150 \textdegree C)[/tex]

Multiply again. This time the degrees Celsius cancel.

[tex]q= 133, 500 \ J[/tex]

The pan absorbs 133,500 Joules of heat energy.

Answer:

1AlBr3+ 3K ---> 3KBr + 1Al

Explanation:

Answer:

The depth of the object below the surface of the liquid is 0.510 meters.

Explanation:

The hydrostatic pressure ([tex]P[/tex]), measured in pascals, experimented by the object is directly proportional to density of the fluid ([tex]\rho[/tex]), measured in kilograms per cubic meter, gravitational acceleration ([tex]g[/tex]), measured in meters per square second, and depth of the object ([tex]h[/tex]), measured in meters. That is:

[tex]P = \rho\cdot g \cdot h[/tex] (1)

If we know that [tex]P = 4500\,Pa[/tex], [tex]\rho = 900\,\frac{kg}{m^{3}}[/tex] and [tex]g = 9.807\,\frac{m}{s^{2}}[/tex], then the depth of the object is:

[tex]h = \frac{P}{\rho\cdot g}[/tex]

[tex]h = \frac{4500\,Pa}{\left(900\,\frac{kg}{m^{3}} \right)\cdot \left(9.807\,\frac{m}{s^{2}} \right)}[/tex]

[tex]h = 0.510\,m[/tex]

The depth of the object below the surface of the liquid is 0.510 meters.

The depth of the object below the liquid's surface will be

"0.510 m".

According to the question,

Object immersed, P = 4500 Pa

Density of liquid, ρ = 900 kg/m³

Acceleration due to gravity, g = 9.8 m/s²

We know the relation,

→ Hydrostatic pressure (P) = ρ.g.h

or,

Depth will be:

→ h = [tex]\frac{P}{\rho .g}[/tex]

By substituting the values,

     = [tex]\frac{4500}{900\times 9.8}[/tex]

     = [tex]\frac{4500}{8820}[/tex]

     = 0.510 m

Thus the above answer is appropriate.  

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Answer:

any black ops i started playing crysis 3 its good and gta5

Explanation:

Answer:

Mobile Legend Bang Bang

Explanation:

:) :)

Answer:

D. sympathetic

Explanation:

Answer:

d

Explanation:

Answer:

d

Explanation

a force solely dependent on the object’s mass

Answer:

The area of the liquid surface does not affect the pressure.

Answer:

Percentage of mass converted to energy = 99.9 %

Explanation:

By far most of the solar system's mass is in the Sun itself: somewhere between 99.8 and 99.9 percent. The rest is split between the planets and their satellites, and the comets and asteroids and the dust and gas surrounding our star. Seen from afar (on the scale of distances between stars) the presence of the solar system would not be obvious. We would simply see a normal-looking star. Perhaps we would pick up the presence of Jupiter, which makes up two thirds or so of the solar system outside of the Sun, by mass.

Answer:since time goes to the right you look at the lines that are most pointed to the right with less distance so that would be B, A, D, C

Explanation:

Answer:

U can walk to the bathroom

Explanation: