I need help!!! What is the answer!!

Answer:

the answer is 483.75 I believe

Answer:

Range.

Explanation:

Range in projectile motion can be defined as the horizontal distance traveled by an object.

An example of range would be the horizontal distance a soccer ball moves between being kicked and touching the ground again.

Answer:

A) Gravity.

Explanation:

Earth is stuck in orbit around the sun, because of the Sun's gravitational pull. In this scenario, the string represents gravity, keeping the Earth attracted towards the sun.

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The student ties a string around a weight and swings the weight in a circle around her body. If the student represents the sun and the weight represents earth, the string will represent GRAVITY then.

In mechanics, gravity—also known as gravitation—is the constant force of attraction that pulls all things together. It has little impact on determining the intrinsic characteristics of common stuff because it is by far the weakest known force in nature.

In contrast, it governs the formations and evolution of stars, galaxies, and the entire cosmos by its extensive and ubiquitous action, which affects the trajectories of objects in the solar system and beyond the universe. All objects on Earth experience weight, or a gravitational pull that is proportionate to their mass and is imposed by the planet's mass.

As the student represents the sun and the weight represents earth, the string will represent GRAVITY then. Hence, option (A) is correct.

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Answer:

50N

Explanation:

Force (N) = mass (kg) × acceleration (m/s²)

0.25kg times 200m/s² = 50N

Answer:

Motion parallax cue.

Explanation:

Motion parallax cue can be defined as a monocular depth cue that arises from objects moving at constant velocity (speed) across the retina or frame appearing to move faster when they are closer to the observer than they appear if they were at a farther distance.

Simply stated, motion parallax refers to a change in position due to the movement of the observer.

Hence, when you move your head from side to side or walk around, the apparent movement of stationary objects relative to one another is known as motion parallax cue.

Therefore, monocular depth cues such as motion parallax gives a valid explanation as to why stationary objects such as trees appear to move when you move your head from side to side.

For example, an observer (passenger) in a moving car looking outside the window would see stationary objects moving due to motion parallax cue.

Answer:

33.33Watts

Explanation:

Given parameters:

Work done  = 1000J

Time taken  = 30s

Unknown:

Power  = ?

Solution:

To solve this problem, we must understand that power is the rate at which work is done.

So;

       Power  = [tex]\frac{Work done }{time}[/tex]  

Now insert the parameters:

 Power = [tex]\frac{1000}{30}[/tex]     = 33.33Watts

Answer:

continue in its motion

Explanation:

Answer:

B

Explanation:

When The conduct of particles is connected to the chemical properties of the materials. The two options are correct B and D.

A property of a substance connecting to its chemical reactivity (as the incendiary effects of nitroglycerin).

Chemical stability and oxidation circumstances, different chemical properties include: Essentially, the chemical property is a differentia that may only be commemorated as an influence of a chemical reaction.

Therefore, The two correct options are B. Efficiently forming bonds with atoms of different elements and D. Converging with oxygen atoms to form a unique substance.

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Answer: I think the answer is d

Explanation:

Light is refracted as it crosses the air-water.

Hope it helps :)

Answer:

a or b

Explanation:

Answer:

The answer is C, condensation or large amounts of water vapor and the second question is correct too.

Explanation:

Answer:  D. the wave has traveled 97.2 cm in 1 second.

Explanation:

Got it right on edge, hope this helps :)

Answer:

D

Explanation:

It is

Answer:

C. Acid

Explanation:

If you have chemistry classes and performed experiments regarding acids and bases, you would physically tell it's acid if the lithmus paper turned red and base if it turned blue. Also, in the pH level chart, there are only two characteristics--acidic and basic. Since it has less than 7 pH, it is definitely acid. Plus, remember the taste of some vitamin C tablets? It has a sour taste to it, isn't it? This is because of ascorbic acid.

The given properties are indicating the substance is acid. Therefore, option (C) is correct.

An acid can be described as any substance that is capable of losing a proton to another substance.  A base can be described as a molecule or ion that can accept a hydrogen ion from an acid.

Acidic substances can be identified by their sour taste. Acid is usually a molecule that donates an H⁺ ion and can be energetically favorable after a loss of an H⁺ ion. Acids are also capable to turn blue litmus into the red.

Bases can be characterized by a slippery texture and a bitter taste. A base that can be dissolved in water as an alkali. When bases and acids react, they form salts and water. Bases can turn red litmus into blue.

The acid reacts vigorously with most metals to form hydrogen. Acidic substances have pH of less than 7.

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Answer:

the prosecution of a person twice for the same offense.

Answer:

b

Explanation:

because Constructive interference occurs when the maxima of two waves add together (the two waves are in phase), so that the amplitude of the resulting wave is equal to the sum of the individual amplitudes. Equivalently, the minima of the waves would be aligned.

Answer:

the vacuum between the glass walls. ... Since air is a poor conductor of heat, having trapped air in the sponge and hollow plastic stopper help to prevent heat loss by conduction

Answer:

It's Laws of Motion

Explanation:

Answer:

1)The reactants are unlit charcoal, and the products are charcoal that has already burned and released its energy.

2)sugar + oxygen → carbon dioxide + water + energy

3)iron + oxygen → rusted iron + energy

4)an endothermic reaction, because ice absorbs heat to become liquid water

5)The temperature of the reactants is greater than the temperature of the products.

Explanation:

100%

Answer:

yes

Explanation:

because you will be hydrated

Answer:

Its good because you can survive without food but you cant survive without water. Extra water can replace empty, sugary calories many people drink with meals.

Explanation:

Answer:

3.16kgm/s

Explanation:

Given parameters:

Mass  = 770g

Velocity  = 4.1m/s

Unknown:

Momentum of the car  = ?

Solution:

To solve this problem, we use the equation below:

       Momentum  = mass x velocity

Convert the mass to kg;

        770g to kg = 0.77kg

Now;

    Momentum  = 0.77 x 4.1  = 3.16kgm/s

Answer:

B. 2

Explanation:

The reaction expression is given as:

                _S  + 3O₂   →  2SO₃

Now let us balanced the expression;

  On the product side we have 2 moles of S

   On the reactant side we should have 2moles of S

So, we put the coefficient 2 to balance the expression;

   We have 6 moles oxygen on both sides

Answer:

frequency = 14 Hz

wavelength = 3 m

speed = ?

speed = frequency

x wavelength

speed =    14  x  3speed =     42 meter per second

Explanation:

Answer:

Vf = 99.7 m/s

Explanation:

In order to find the final velocity of the car, we will use the third equation of motion. The third equation of motion is given as follows:

[tex]2as = V_{f}^{2} - V_{i}^{2}[/tex]

where,

a = acceleration of the car = 9.2 m/s²

s = distance traveled by the car = 540 m

Vf = Final Speed of the car = ?

Vi = Initial Speed of the car  1.6 m/s

[tex]2(9.2\ m/s^{2})(540\ m) = (V_{f})^{2}-(1.6\ m/s)^{2}\\V_{f}^{2} = 9936\ m^{2}/s^{2} + 2.56\ m^{2}/s^{2}\\\\V_{f} = \sqrt{9938.56\ m^{2}/s^{2}}[/tex]

Vf = 99.7 m/s

Answer:

The specific heat capacity of something is simply the amount of heat energy required to raise 1g of that substance or object by 1°C.

The specific heat capacity of something is simply the amount of heat energy required to raise 1g of that substance or object by 1°C.It is given by the formula Q = mcΔT, where Q is the energy transferred (J), m is the mass of the substance (kg), c is the specific heat capacity, and ΔT is the temperature change (°C).

Answer:

golf course

Explanation:

i will give you all the answers you desire, my love

Answer:

i did this project where i took two marbles pool noodles and tape then i made a ramp and i saw which marble would go down faster the big marble or the little marble hope this helps!!

Answer:

4. Wx = 42.47[N]

Explanation:

In order to solve this problem, we must first make a free body diagram, of the forces acting on the body in the inclined plane.

As we can see in the attached image, the component of the weight parallel to the surface of the inclined plane can be obtained by the sine of the angle.

[tex]W_{x}=5*9.81*sin(60)\\W_{x}=42.47[N][/tex]

Answer:

1. chemical energy --> electrical energy --> light energy

2. Electrical Energy --> Mechanical Energy

3. Electrical Energy --> Heat Energy

4. Chemical Energy --> Thermal Energy  --> Mechanical Energy

5. Nuclear Energy --> Light energy and thermal energy

6. Mechanical Energy --> Electric Energy

7. Chemical Energy --> Electrical Energy --> Sound Energy

8. Mechanical Energy --> Sound Energy

Explanation: