A diver is on a board 1.80 m above
the water. She jumps straight up
at 3.62 m/s.
What is her maximum height above
the water?
[?]m

Answer:

it is certainly a as clearly a has the greater mass

Explanation:

Density=mass/volume

Density=7.5/2.5

density=3g/cm^3

The density of a 2.5-cm3 glass marble that has a mass of 7.5 g is 3g/cm^3.

The density of a material is the measure of how tightly it is packed together. It is expressed as mass per unit volume.

Density Symbol: D or Density Formula: = m/V, where is the density, m is the object's mass, and V is the object's volume.

Density is the amount of "stuff" in a given amount of space. A block of the heavier element lead (Pb), for example, will be denser than a block of the softer, lighter element gold (Au). A Styrofoam block is less dense than a brick. It is expressed in terms of mass per unit volume.

Density = mass / volume

Density = 7.5 / 2.5

density = 3g/cm^3

Thus, The density of a 2.5-cm3 glass marble that has a mass of 7.5 g is 3g/cm^3.

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Answer:

Friction

Explanation:

In the event that the power is applied toward the path inverse to the bearing of movement, it goes against the movement of the item and henceforth the speed of the article diminishes.

Then, in the event that the thing continues to move one way, grinding will dominate and go about as the moving variable.

So, the moving factor would be friction.

Answer:

Explanation:

tension beacuse the tension is travling to the up to the crane chane

Answer:

The answer is C.

Explanation:

Answer:

Gravity, also called gravitation, in mechanics, the universal force of attraction acting between all matter. ... On Earth all bodies have a weight, or downward force of gravity, proportional to their mass, which Earth's mass exerts on them. Gravity is measured by the acceleration that it gives to freely falling objects

1 : A force of attraction that tends to draw particles or bodies together.

2 : The attraction of bodies by the force of gravity toward the center of the earth.

3 : Great seriousness.

Answer: [tex]1.5\ m/s^2[/tex]

Explanation:

Given

velocidad [tex]v=54\ km/h[/tex]

tiempo tomado [tex]t=10\ s[/tex]

Convertir km/h en m/s

[tex]\Rightarrow 54\ km/h\equiv 15\ m/s[/tex]

La aceleración está dada por la tasa de cambio de velocidad

[tex]\Rightarrow a=\dfrac{v}{t}\\\\\Rightarrow a=\dfrac{15}{10}\\\\\Rightarrow a=1.5\ m/s^2[/tex]

Por tanto, la aceleración es [tex]1.5\ m/s^2[/tex]

Answer:

the First one i think is D: it increases

The second i think it is B

i think

Explanation:

Answer:

momentum

Explanation:

the impulse is equal for both carts, the momentum for both carts is zero both before the string is cut and after it is cut

After the string is cut and the carts move apart, the magnitude of momentum is the same for both carts. Hence, option B is correct.

Momentum is the result of a molecule's mass and velocity. Being a vector quantity, momentum possesses both magnitude and the direction. As according to Isaac Newton's second equation of motion, the force applied on a particle is equivalent to the time change in velocity. 

According to Newton's 2nd law, if a particle is exposed to a constant force for a specific period of time, the result of the force and time (referred to as the impulse) is equal to the difference in momentum. In contrast, hand, a particle's momentum is a measurement of the amount of time needed for a consistent force to put it to rest.

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Answer: Si es mayor a 65 dB es considerado dañino.

Explanation: Se considera ruido a todo aquel que supera los 75 dB o torturante aquel mayor a 120 dB según la OMS.

Answer: H

Explanation:

When beavers dam a stream they slow the movement of water. Behind the beaver dam, a pond of still water is formed. This pond is then colonized by animals and plants that typically live in lakes rather than streams.

Answer:

Its a Diverging Lens(concave lens)

Answer:

diverging lens

Explanation:

Answer:

f = 459.8 Hz

Explanation:

When a trumpet is playing it is an open tube at both ends, therefore there is a belly in each one, the resonance occurs to

           λ = 2L             1st harmonic

           λ = 2L /2        2nd harmonic

           λ = 2L /3       3rd harmonic

the speed of the wave is

           v = λ f

           λ = v / f

we substitute in the third harmonic

            [tex]\frac{v}{f} = \frac{2L}{3}[/tex]            (1)

            L = [tex]\frac{3}{2} \ \frac{v}{f}[/tex]

            L = [tex]\frac{3}{2} \ \frac{343}{ 510}[/tex]

            L = 1.009 m

indicates that to  add ΔL = 0.110 m, so the total length is

            L_total = L + ΔL

            L _total = 1.009 + 0.110

            L _total = 1,119 m

we use equation 1

            f =  [tex]\frac{3}{2} \ \frac{v}{L_{total}}[/tex]

            f = [tex]\frac{3}{2} \ \frac{343}{1.119}[/tex]

            f = 459.8 Hz

[tex] \huge\mathrm{Answer࿐}[/tex]

Our Atmosphere is full of freely subtended particles, and when light from sun strikes the particles then scattering occurs, in which blue colour is most scattered and hence causing Sky to appear blue .

Hope it helps !!

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The maximum amount of solute is dissolved in the solvent. The correct option is D.

A saturated solution is a type of solution where the maximum amount of solute has been dissolved in a solvent, at a specific temperature and pressure, such that any additional solute added will not dissolve.

A saturated solution is a solution in which the maximum amount of solute has been dissolved in the solvent at a specific temperature and pressure. Any additional solute added to the solution will not dissolve and will instead settle at the bottom of the container as solid particles.

The concentration of a saturated solution is at its maximum level and cannot be increased further unless the temperature or pressure is changed.

Therefore, the correct option is D.

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Answer:

the magnitude of the resultant of two forces is 25 N.

Explanation:

Given;

first force, F₁ = 20 N

second force, F₂ = 15 N

the angle between the two forces, θ = 90⁰

The resultant of these two forces is obtained by applying Pythagoras theorem;

R² = F₁²  +  F²

Where;

R is the resultant force

R² = 20²  +  15²

R² = 625

R = √625

R = 25 N

Therefore, the magnitude of the resultant of two forces is 25 N.

Answer: due to large momentum

Explanation:

The impact of the loaded truck is very large on a body coming in its way because of the momentum associated with truck. Truck has a huge mass which is responsible for its large momentum.

Momentum is the product of mass and velocity. Even though the velocity of truck is low but it's mass compensates for it to give large momentum. This large momentum can overwhelm any small body at rest or coming in its way.

Answer:

The balanced chemical equation is 1SnO2 + 2H2 --> 1Sn + 2H2O.

Explanation:

The equation is now balanced because both sides have an equal number of reactants and products.

There is 1 Sn on each side, 2 O on each side, and 4 H on each side.

Answer:

La velocidad media en el trayecto completo es 0.8 [tex]\frac{km}{minutos}[/tex].

Explanation:

La velocidad es una magnitud física que expresa la relación entre el espacio recorrido por un objeto y el tiempo empleado para ello.

En otras palabras, la velocidad es una magnitud que relaciona el cambio de posición (o desplazamiento) con el tiempo.

La velocidad media resulta del cociente entre el desplazamiento seguido por un móvil y el  tiempo transcurrido que se emplea  para realizar dicho desplazamiento:

[tex]velocidad=\frac{desplazamiento}{tiempo}[/tex]

En este caso, un repartidor de comida rápida entrega una pizza a una casa que se encuentra a 20 km de distancia y se demora 20 minutos en llegar. De vuelta a la pizzería vuelve más relajado y se demora media hora. Entonces, el desplazamiento total entre la pizzería y la casa será 40 km, considerando que se dirige a la casa y vuelve a la pizzería.

Por otro lado, el tiempo total será el tiempo en que se dirige a la casa y luego vuelve a la pizzería, es decir 20 minutos + 30 minutos= 50 minutos.

Entonces:

[tex]velocidad=\frac{40 km}{50 minutos}[/tex]

Resolviendo:

velocidad= 0.8 [tex]\frac{km}{minutos}[/tex]

La velocidad media en el trayecto completo es 0.8 [tex]\frac{km}{minutos}[/tex].

Answer:

Pneumatics use easily compressible gas like air or pure gas. Meanwhile, hydraulics utilize relatively-incompressible liquid media like mineral oil, ethylene glycol, water, synthetic types, or high-temperature fire-resistant fluids to make power transmission possible.

Explanation:

hope this helps

Answer:

I'm not sure it is c I'm sure it is d

Answer:

Explanation:

Answer:

hey from what I know the answer is C

Explanation:

When a book is kept on a table , weight (gravitational force) of book acts on table vertically downwards and as a reaction of weight , table also exerts an equal and opposite ( upward) force on book .

Answer:

It is A.) Longer

Explanation:

The shortest wavelength is on the (high energy)left side of the diagram with gamma rays. The longest wavelength waves are radio, around 3 meters. so, as you progress, the wavelengths get longer.