Science question! helppppp

Answer:

D

Explanation:

Anaerobic Respiration only

Last one!

Perpendicular to the wave's energy

Hope this helps!

The difference between an sa and sb galaxy is Sa has a larger nucleus and more tightly wound arms than an Sb.

Sa galaxies are normal spirals that have narrow, tightly wound arms, which usually are visible because of the presence of interstellar dust and, in many cases, bright stars.

The arms of sb galaxy are more widely spread than those of the Sa variety and appear less smooth.

Thus, the difference between an sa and sb galaxy is Sa has a larger nucleus and more tightly wound arms than an Sb.

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The minimum coefficient of friction to avoid slippage of the coin is 0.23.

The minimum coefficient of friction can determined from the maximum speed of the coin.

ma = μmg

mv²/r = μmg

v²/r = μg

v² = μgr

μ = v²/(gr)

μ = (ωr)²/(gr)

μ = ω²r/g

μ = (7.95² x 0.035)/(9.8)

μ = 0.23

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Ridge push refers to the pressure exerted by the excess height of the mid-ocean ridge, while Slab pull refers to the force exerted by the weight of the subducted slab on the plate it is attached to.

The two forces that form mid-ocean ridges are ridge-push and slab pull.

Ridge push refers to the pressure exerted by the excess height of the mid-ocean ridge.

Slab pull refers to the force exerted by the weight of the subducted slab on the plate it is attached to.

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Answer:

ressistor

Explanation:

Answer:

i think the planet is Uranus

Answer:

3 767 400 joules

Explanation:

4.186 J/g-C   is the specific heat of water

25  to 115  is 90 degrees C change

10 000 g   is 10 kg of water

10 000 * 90 * 4.186 = 3 767 400 Joules

The portions of Earth's fresh water are located in lakes and streams.  The options A and D are correct.

The freshwater is the one which does not contains any harmful chemical and saltiness.

The oceans contains salt water and the lakes and the streams have fresh water.

So, the option A and D are correct.

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The north and west components of this displacement are 9.19 km and -7.71 km respectively.

The north component of the displacement is calculated as follows;

Dy = D sinθ

Dy = 12 km x sin50

Dy = 9.19 km

Dx = D x cosθ

Dx = - 12 km x cos(50)

Dx = -7.71 km

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The difference between minimum and maximum possible speeds of the ball relative to the player is 10 m/s.

Relative velocity is the velocity of an object with reference to the velocity of another object.

When two objects are travelling in the same direction, the relative velocity of one object to another is obtained by subtracting their velocities.

When two objects are travelling in opposite directions, the relative velocity of one object to another is obtained by adding their velocities.

The minimum relative velocity of the ball to the player (same direction) = 20 - 5 = 15 m/s

The maximum relative velocity of the ball to the player(opposite direction) = 20 +  5 = 25 m/s

Difference between minimum and maximum relative velocity = 25 - 15 = 15 m/s

Therefore, the difference between minimum and maximum possible speeds of the ball relative to the player is 10 m/s.

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The difference between the minimum and maximum possible speeds of the ball relative to the player is 10 m/s.

What is relative velocity?

The velocity of an object with respect to the velocity of another object.

The minimum relative velocity of the ball to the player moving in the same direction= 20 - 5 = 15 m/s

The maximum relative velocity of the ball to the player moving in the opposite direction= 20 +  5 = 25 m/s

Difference between minimum and maximum relative velocity = 25 - 15 = 15 m/s

Hence, the difference between the minimum and maximum possible speeds of the ball relative to the player is 10 m/s.

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The particle would have the longest De Broglie wavelength traveling with the same velocity, which has lesser frequency.

What is wavelength?

The wavelength is the distance between the adjacent crest or trough of the sinusoidal wave. The wavelength is the reciprocal of the frequency of the wave.

Wavelength λ = c/f

where c is the speed of light in vacuum = 3*10⁸ m/s

As, the wavelength and frequency are inversely related to each other. When the wavelength is longer, the frequency will be lesser to the same value of speed of wave.

Thus, the particle with less frequency has longest De Broglie wavelength.

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The instrument that would be the most help in finding this cloud is D. a sensitive infra-red telescope in orbit around the Earth.

It should be noted that an astronomer is a scientist who focuses on the study of the Earth.

In this case, the instrument that would be the most help in finding this cloud is a sensitive infra-red telescope in orbit around the Earth.

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Answer:

Approximately [tex]122.625\; {\rm m}[/tex] (assuming that [tex]g = 9.81\; {\rm m\cdot s^{-2}}[/tex], the ball was launched from ground level, and that the drag on the ball is negligible.)

Explanation:

Let [tex]v_{0}[/tex] denote the velocity at which the ball was thrown upward.

If the drag (air friction) on the ball is negligible, the ball would land with a velocity of exactly [tex](-v_{0})[/tex]. The velocity of the ball would be changed from [tex]v[/tex] to [tex](-v_{0})\![/tex] (such that [tex]\Delta v = (-v_{0}) - v_{0} = (-2\, v_{0})[/tex]) within [tex]t = 10\; {\rm s}[/tex].

Also because the drag on the ball is negligible, the acceleration of the ball would be [tex]a = -g = -9.81\; {\rm m\cdot s^{-2}}[/tex]. Thus:

[tex]\Delta v = a\, t = 10\; {\rm s} \times (-9.81\; {\rm m\cdot s^{-2}}) = -98.1\; {\rm m\cdot s^{-1}}[/tex].

Since [tex]\Delta v = (-2\, v_{0})[/tex]:

[tex]-2\, v_{0} = \Delta v = -98.1\; {\rm m\cdot s^{-1}[/tex].

[tex]\begin{aligned}v_{0} &= \frac{-98.1\; {\rm m\cdot s^{-1}}}{-2}= 49.05\; {\rm m \cdot s^{-1}}\end{aligned}[/tex].

The ball reaches maximum height when its velocity is [tex]v_{1} = 0\; {\rm m\cdot s^{-1}}[/tex]. Apply the SUVAT equation [tex]x = ({v_{1}}^{2} - {v_{0}}^{2}) / (2\, a)[/tex] to find the displacement [tex]x[/tex] between the original position (ground level, where [tex]v_{0} = 49.05\; {\rm m\cdot s^{-1}}[/tex]) and the max-height position of the ball (where [tex]v_{1} = 0\; {\rm m\cdot s^{-1}}[/tex].)

[tex]\begin{aligned}x &= \frac{(0\; {\rm m\cdot s^{-1}})^{2} - (49.05\; {\rm m\cdot s^{-1}})^{2}}{2 \times (-9.81\; {\rm m\cdot s^{-2}})} \\ &\approx 122.625\; {\rm m\cdot s^{-1}}\end{aligned}[/tex].

We know that 20 m/s N is a vector quantity because N in the expression signifies the direction

This is a which have both magnitude and direction. Example include:

Thus, we can conclude that 20 m/s N is a vector quantity because it has both magnitude and direction.

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Answer:

lubricant (decrease friction).

control production speed.

use only when required.

Answer:

example of kinetic theory include brownian motion the random movement of the particles because the consolation with the air molecules and how gas is behave boiling and j l also this cyclone explain how temperature affects the

Answer:

its Q

Explanation:

The formula for the energy in a capacitor , u in terms of q and c is q²/2c

The energy of a capacitor u = 1/2qv where

Also, the capacitance of a capacitor c = q/v where

So, v = q/c

Substituting v into u, we have

u = 1/2qv

= 1/2q(q/c)

= q²/2c

So, the formula for the energy in a capacitor , u in terms of q and c is q²/2c

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The findings that most likely contributed to Jenna's conclusion were a change in smell. Option A is correct.

A fragrance, usually an unpleasant one: The smell of sweaty feet was palpable throughout the space. Our body odor has a big impact on the kinds of scents we enjoy.

The complete question is;

"Jenna pulled out an open bowl of leftover mashed potatoes from the fridge and smelled something different. She discovered that since the potatoes were initially placed there, chemical changes had taken place. Which facts most likely supported Jenna's judgment?

a change of odor

a decrease in temperature

a change in moisture content

a decrease in mass"

The observation that most likely inspired Jenna to draw her conclusion was a change in odor.

Hence, option A is correct.

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Answer:

A change in odor

Explanation:

Answer: 2, 3, and 5

Explanation:

Answer:

D.

Explanation:

acceleration in the z component = velocity in z component / time. The question states velocity in z component is zero. Therefore, acceleration in z component = 0/time = 0.

Now the question does not specify whether the other velocity vectors (x or y) is zero or not. So its D.

Answer / Explanation:

acceleration is essentially increasing in velocity. [acceleration is literally velocity over time]

So, we can see acceleration on this velocity/time graph (the y-axis is representative of velocity).

Meaning that...

When we increase in velocity, that is acceleration. [A]

When we stay at the same velocity, that is zero acceleration. [B]

> (we are not increasing {acceleration} or decreasing {deceleration} in velocity/ acceleration over time)

When we decrease in velocity, that is deceleration. [C]

When we have no velocity (velocity = 0), that is zero velocity. [D]

So, this curve is already in order of A-B-C-D.

(origin/0 to A = acceleration)

(A to B = zero acceleration)

(B to C = deceleration)

(C to S = zero velocity)

hope this helps!!

Answer:

O - A : acceleration

A - B : zero acceleration

B - C : deceleration

C - S : zero velocity

Explanation:

acceleration is velocity over time, meaning that the slope of the graph is showing acceleration

Answer:

her displacement s=337.5m

Explanation:

check out the above attachment ☝️

Displacement after 15.0 seconds s= 337.5 m

The rate of change of velocity is called acceleration.

Acceleration. speed is the charge of the exchange of displacement. Acceleration is the charge of the exchange of speed. velocity is a vector quantity because it consists of each significance and direction. Acceleration is also a vector quantity as it's far just the fee of alternate of pace.

Acceleration of 3.0 m/s²

Time= 15.0 seconds

S= ut + 1/2 at²

S = 0+0.5*3*15*15

 =337.5 m

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Explanation:

Hello !

''states that the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially, is equal to the weight of the fluid that the body displaces.''

Archimedes principle equation is given as

buoyant force = density of fluid x volume of displaced fluid x acceleration due to gravity. or

Fb=-density*gravity*volume

For example, a ship that is launched sinks into the ocean until the weight of the water it displaces is just equal to its own weight.

Answer:

Archimedes principle states that"When a body is totally or partially immersed in a liquid,it experience an upthrust which is equal to the weight of the liquid displaced"

This shows that the weight of liquid displaced when a certain object is placed in water is equal to the weight of the object.

The pendulum have the least potential energy at the point C between point A and B because it is lower in height as compared to other points.

Potential energy is the energy held by an object because of its position. If the object is present at a certain height, it has more potential energy as compared to object which is lower in height.

So we can conclude that the pendulum have the least potential energy at C point that is between point A and B.

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Answer:The amount of current flowing

Explanation:this derives from amperes law of maxwell’s equations. It’s easiest to see in differential form. The curl of the magnetic field is proportional to the current plus the change (time derivative) in electric field

Answer:

[tex]750\; {\rm m\cdot s^{-1}}[/tex].

Explanation:

The distance between two adjacent nodes of a standing wave is equal to one-half (that is, [tex](1/2)[/tex]) the wavelength of this wave.

Let [tex]\lambda[/tex] denote the wavelength of the standing wave in this question. The distance between two nodes of this wave is [tex]0.25\; {\rm m}[/tex], meaning that [tex](1/2)\, \lambda = 0.25\; {\rm m}[/tex]. Thus, [tex]\lambda = 2 \times 0.25\; {\rm m} = 0.50\; {\rm m}[/tex].

Given that [tex]f = 1500\; {\rm Hz}[/tex] is the frequency of the waves that formed this standing wave, the speed of these waves would be:

[tex]\begin{aligned}v &= \lambda\, f \\ &= 0.50\; {\rm m} \times 1500\; {\rm Hz} \\ &= 0.50\; {\rm m} \times 1500\; {\rm s^{-1}} \\ &= 750\; {\rm m\cdot s^{-1}}\end{aligned}[/tex].