Which of these statements is true about severe weather?
Severe weather does not cause enough injuries to take precautions.
Weather situations can be prepared for in many cases,
Severe weather can be avoided in certain areas of the country.
Preparation is impossible for extreme weather situations.

When a star is so dense that its atoms have their electrons smashed in toward the nucleus (resulting in densities about a million times greater than water), the resulting material is called a Neutron star.

Stars are present in the galaxy that have the ability to generate their own light. They are both quite hot and very huge.

They are largely formed of hydrogen, with a trace of helium thrown in for good measure.

The sun is also a star, and its energy and light play an important part in the survival of all kinds of life on Earth.

When a star is so dense that its atoms have their electrons smashed in toward the nucleus (resulting in densities about a million times greater than water), the resulting material is called a Neutron star.

Hence the correct answer is a neutron star.

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Answer:

मार्क ASL brainlisessjd

Answer:

The answer for cos(30°) is 0.87

Answer:

11.98 N

Explanation:

Normal force =   mg =  2.03 * 9.81

coeff of static friction must be overcome for the book to begin moving

       .602 = F / (2.03 * 9.81)   = 11.98  N

Marley was the victim of a hoax. The synonym of the hoax is a practical joke, joke, jest, prank, trick, jape, and fraud.

To dupe someone into believing or accepting something untrue and frequently absurd as genuine.

A practical joke, joke, jest, prank, trick, jape, and scam are all synonyms for a hoax.

Marley stayed up late to watch the planet Mars rise in the east. She had read online that Mars was unusually close to the Earth in its orbit and would look nearly as large as the moon.

However, she only saw stars, and the next morning she ended up oversleeping because of her late bedtime. Marley was the victim of a hoax.

Hence a hoax is a correct answer.

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Explanation:

w = v/r

= 15/ 45 = 1/3 rads-¹

a = w²r

= 1/9 • 45 = 5 ms-²

F = mv²/r

= 1200• 15• 15/45

= 6000N

The car, when rounding the curve, is pulled towards the center by the friction between it's wheels and the road.

The height to which the weight-watcher must climb to work off the equivalent 991 (food) Calories is 0.59 Km

1 food calorie = 103 calories

Therefore,

991 food calories = 991 × 103

991 food calories = 102073 calories

Multiply by 4.2 to express in joule (J)

991 food calories = 102073 × 4.2

991 food calories = 428706.6 J

E = mgh

Divide both side by mg

h = E / mg

h = 428706.6 / (73.9 × 9.8)

h = 591.95 m

Divide by 1000 to express in km

h = 591.95 / 1000

h = 0.59 Km

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Answer:

(d) is not affected practically

Explanation:

A bird sitting on a high power line is not affected practically.

This is because both of its legs are at the same potential, and current cannot flow through its body.

Answer:

option D

Explanation:

The bird sitting on a high power line but the bird is not touching ground by its body parts .

Hence there is no way electricity can pass through its body to earth

Thus it won't get any shock .

Answer:

i dont know but ill update you

We can confirm that when you travel in an elevator, the utricle and saccule detect when the elevator is moving.

These are small organs located in the inner ear. They serve a very important function in our everyday life. These otolith organs are responsible for the detection of movement and provide us with a sense of spatial orientation. They accomplish this by stimulating very small, hair-like cells with a specialized fluid.

Therefore, we can confirm that when you travel in an elevator, the utricle and saccule detect when the elevator is accelerating or decelerating.

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Answer:

2.5 kg - m/s

Explanation:

Momentum = m * v = .5 * 5 = 2.5  kg-m/s

Hubble space telescope, Hubble deep field guide, moon, mercury, Saturn, sun, galaxy messier 101

Answer:

1-Hubble Deep Field Galaxy

2-Galaxy Messier 101

3-Sun

4-Saturn

5-Mercury

6-Moon

7-Hubble Space Telescope

Wave is best described as a pulse that carries energy and is denoted as option A in this context.

This is a disturbance which carries energy from one place to another without the movement of the matter.

Since matter isn't moved then it is best described as a pulse which carries energy from one place to another.

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Answer:A

Explanation:

The equation is not balance because the law of conservation of mass is not being followed.

The hydrogen and chlorine atoms have different numbers of atoms in the reactants and products which is not balance on both sides i.e. reactant and products.

So we can conclude that the equation is not balance because the law of conservation of mass is not being followed.

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Answer:

See below

Explanation:

Coulomb's Law    Force = k q1 q2 / r^2

k = Coulomb's constant = 8.9875517 x 10^9  kg m^3 /s^2 C^2

    Force =  8.9875517 x 10^9   * 7 * 5  / (5925^2)  = 8960.5102 N

Answer:

mechanical

Explanation:

the energy is carried by water <3 hope this helped

Answer:

C

Explanation:

I would have to say C because the girl is constantly moving in the act of serving the volleyball.

The force constant that is needed to produce a period of 0.500 s for a 0.0150-kg mass is 2.37 N/m

Period (T) = 0.5 s

Mass (m) = 0.015 Kg

Pi (π) = 3.14

Spring constant (K) =?

The spring constant can be obtained by using the formula for calculating the period of simple harmonic motion. This is illustrated below

T = 2π√(m /K)

Square both side

T² = 4π²m / K

Cross multiply

T² × K = 4π²m

Divide both side by T²

K = 4π²m / T

K = (4 × 3.14² × 0.015) / 0.5²

K = 2.37 N/m

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Answer:

Explanation:

Remark

The answer is in the formula

E = I * R

Solution

Let the resistance = R

I = 12/R

If we increase the resistance by 20% then we get

R1 = R + (20/100) * R

R1 = R + 1/5 * R

R1 = 6 R/5

What happens to I when you do this

I = 12/(6/5 R)       Effectively you need to treat 6/5 as a reciprocal

I = 12 * 5/6 * R

I = 10 / R

What does this tell you? Since the Resistance has a base value of R, when increased by 20%, the numerator of the fraction is reduced to 10 from 12. In other words the current  is now smaller when R goes up.

Explanation:

A projectile (Cannon ball) is launched at an angle to the horizontal and rises up to a peak while moving horizontally. When it reaches the peak, the projectile starts to fall.

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Here's the answer ~

1. The energy that has been given to the solid material is being used to change its phase from solid to liquid.

2. This all energy is converted into latent heat of fusion causing change in state. so there's no increase in temperature.

Answer →

a) The phase of solid material is changing due to Absorption of heat.

b) The energy that is being supplied to it is absorbed by the material to break the intermolecular bonds.

Explanation:

Heat is a mod of transfer of energy, and solid is a giant network of atom or ions closely bounded with high inter molecular forces. When the bonds are formed lead to release in energy hence to break the bond you need to supply energy and that energy supplier is heat. Generally there are two types of heat, one that you sense as rising temperature and another where you see a gradually change in the phase of material. When the heat that you supply is being absorbed that means the energy is being consumed(absorbed) by the material, to break the bonds, and you doesn't sense the temperature of material being raised but the change in state of material from solid→Liquid, solid→gas depends on the type compound, the phase of material changes, same thing happens in reverse case from Gas→Liquid, Liquid→Solid, the energy is released in atmosphere. this absorbed or released energy(heat) is Latent heat.

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Answer:

3904 Meters

Explanation:

F = ma

work = F * d

89.1 (9.8)* d        = 815000/.23906                                                                                                     conversion factor  1 j = .23906 cal

d = 3904 meters

Answer:

The distance is shortenend by factor .1715

Explanation:

5 n  = 1/r^2

sqrt (1/5) = r

170 n  = 1 / ( x sqrt(1/5))^2

(xsqrt 1/5)^2 = 1/170

x sqrt 1/5  = .076696

x = .1715    

If everything lies perfectly for superposition to occur, the force on a car is 1000 N.

Superposition is the phenomenon of placing one wave over the other so that they coincide. The resultant force will be zero.

The force in kg will be

1mteric ton = 1000 kg

1metric ton per m²= 1000 N

1000 N force is applied to a car, which will be equal and opposite to the massive wave.

The equal force will act on a car equal to 1000 N.

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Answer:

torques must balance for equilibrium

counterclockwise = clockwise

1.5 X = 4 * 20

x = 80 N-m / 1.5 m = 53 N

(D) is correct

Answer:

C: Every mass exerts a gravitational force on every other mass

This statement is true

Answer:

[tex]F_{k} = 9854N[/tex] Opposite to the motion of the car.

Explanation:

Please find the detailed solution below