In the egg drop experiment. Will an egg cushioned with bubble wrap increase the time it takes for the egg to impact the ground? If so, how will the device do this?

A bus is about to leave in exactly 5 seconds. You are 20 meters away. With a speed of 4 m/sec you will be able to catch the bus on time.

By dividing the distance traveled by the time required to complete that distance, speed is calculated. For a specific distance, it provides the travel time / distance.

Speed and distance are tightly related, whereas time and distance have an inverse relationship. Speed times the passing of time equals distance.

Distance divided by speed is how time is calculated; as speed rises, time slows down, and vice versa.

Given

Time = 5 secs

Distance = 20 m

On putting the values in the given formula we get,

Speed = Distance / Time

Speed = 20 m / 5 secs

Speed = 4 m/secs

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Answer:

C. Mass

Explanation:

If something has the same weight than it has the same mass

Answer: C

Explanation: the mass is the same as weight so if they have weight they also must have mass.

Explanation:

Falt isn't a size. I guess you were trying to spell flat. No, the earth isn't flat. instead, it is round.

Answer:

Earth is round. But the map shows you flat.

An electric iron is marked 120 volts and 500 Watts. The units consumed by it in using it for 24 hours can be calculated using the formula:Power (in watts) = Voltage (in volts) x Current (in amperes)P = V x I

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the acceleration of the more massive box is = F/3M.

This equation a = v/t denotes acceleration (a), which is the velocity that changes (v) over the time period (t).

The three main types of accelerated motions are uniform acceleration, quasi acceleration, and average acceleration.The motion in which an item moves inside a straight line while increasing in velocity at regular intervals is referred to as uniform acceleration.

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A. The average speed you can use to pull the safe is 1.02 m/s

B. The time needed to pull the safe up is 17.65 s

First, we shall obtain the force. This is shown below:

F = mg

F = 60 × 9.8

F = 588 N

Finally, we shall obtain the average speed. Details below:

Power = force × average speed

600 = 588 × average speed

Divide both sides by 588

Average speed = 600 / 588

Average speed = 1.02 m/s

The time needed to pull the safe up can be obtained as follow:

Time = Total distance / average speed

Time = 18 / 1.02

Time = 17.65 s

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Complete question:

You know you can provide 600 W

of power to move large objects. You need to move a 60-kg

safe up to a storage loft, 18 m

above the floor.

Part A

With what average speed can you pull the safe straight up?

Part B

What is the time needed to pull the safe up?

Answer:

meeee

Explanation:

Answer:

Me

Explanation:

:)

Answer: 1.2

Explanation:

0.6 times 2

In precipitation, Rainwater can fall as either Liquid or Solid.

Precipitation is a part of the water cycle. Precipitation falls to the floor as snow and rain. It subsequently evaporates and rises back into the surroundings as a gas. In clouds, it turns back into a liquid or stable water, and it falls to Earth again

The water cycle shows the non-stop motion of water within the Earth and its surroundings. it's miles a complex system that consists of many one-of-a-kind techniques. Liquid water evaporates into water vapor and condenses.

There are four fundamental ranges in the water cycle. they are evaporation, condensation, precipitation, and collection. permit's examined every one of these ranges. Evaporation: that is whilst warm temperature from the sun causes water from oceans, lakes, streams, ice, and soils to upward push into the air and grow to be water vapor.

Disclaimer: your question is incomplete, please see below for the complete question.

Liquid

Steam cloud

2nd half

Steam

Solid

Cloud

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The comparative diameters of the celestial bodies in the solar system are as follows:

Sun: 109 times the diameter of Earth

Mercury: 0.383 times the diameter of Earth

Venus: 0.949 times the diameter of Earth

Earth: Assigned a value of 1 for comparison

Mars: 0.532 times the diameter of Earth

Jupiter: 11.209 times the diameter of Earth

Saturn: 9.449 times the diameter of Earth

Uranus: 4.041 times the diameter of Earth

In the solar system, the sizes of the planets and the Sun vary significantly. The diameter of each celestial body can be expressed relative to the diameter of the Earth, which is assigned a value of 1 for comparison. Here are the comparative diameters of the planets and the Sun:

- Sun: The Sun is the largest object in our solar system, with a diameter approximately 109 times that of the Earth. It is a massive ball of hot, glowing gas and forms the central body around which all the planets revolve.

- Mercury: Mercury is the closest planet to the Sun and has a diameter of about 0.383 times that of the Earth. It is the smallest planet in the solar system and is characterized by its rocky surface and extreme temperature variations.

- Venus: Venus is often referred to as Earth's sister planet due to its similar size and composition. It has a diameter of about 0.949 times that of the Earth, making it slightly smaller.

- Earth: Earth is our home planet, and its diameter is assigned a value of 1 for comparison. It has a diameter of approximately 12,742 kilometers.

- Mars: Mars is the fourth planet from the Sun and has a diameter of about 0.532 times that of the Earth. It is known for its reddish appearance and has been a subject of exploration for potential signs of past or present life.

- Jupiter: Jupiter is the largest planet in the solar system and has a diameter approximately 11.209 times that of the Earth. It is a gas giant with a thick atmosphere and a prominent set of rings.

- Saturn: Saturn is the second-largest planet and has a diameter of about 9.449 times that of the Earth. It is known for its beautiful ring system and numerous moons.

- Uranus: Uranus is the seventh planet from the Sun and has a diameter of about 4.041 times that of the Earth. It is an ice giant and is characterized by its unique tilted axis of rotation.

These comparative diameters provide a sense of scale and highlight the vast size differences between the planets and the Sun in our solar system. It's important to note that the sizes of celestial bodies in the universe can vary significantly, and the solar system represents just a small fraction of the immense cosmic scale.

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C. Gravitational force between two objects depends

only on the mass of the larger object is NOT true about gravity

Gravity is a fundamental interaction that causes all entities with mass or energy to attract one other.

In nature, there are no other sorts of gravity. This indicates that based on their masses and the distance between their centers, there is only one form of gravitational force pulling the two bodies together.

Gravity is the weakest force known in nature and is a form of central force.

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The Danube river is the second largest

Hence, R = 28.97 m, 24.5 degrees is the vector sum of T and U.

A vector's direction is frequently stated as a rotation of the vector's "tail" anticlockwise with respect to due East. In accordance with this practise, a vector having a direction of 30 degrees is a vector that has been anticlockwise rotated 30 degrees with respect to due east.

Let's begin by separating the components of the vector T:

T~ = 40 m, 30 degrees

T_x = 40 cos(30) = 34.64 m

T_y = 40 sin(30) = 20 m

Let's now decompose the vector U into its constituent parts:

U~ = 12 m, 225 degrees

U_x = 12 cos(225) = -8.49 m

U_y = 12 sin(225) = -8.49 m

It is possible to combine elements of the same type (x and y):

R_x = T_x + U_x = 34.64 m - 8.49 m = 26.15 m

R_y = T_y + U_y = 20 m - 8.49 m = 11.51 m

The Pythagorean theorem can be used to determine the size of the resulting vector R:

|R~| = sqrt(R_x² + R_y²) = sqrt((26.15 m)² + (11.51 m)²) = 28.97 m

The inverse tangent function can be used to determine the direction of the resulting vector R:

theta = tan⁻¹(R_y/R_x) = tan⁻¹(11.51 m/26.15 m) = 24.5 degree.

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Answer:

wave is in the y-direction, the wave is traveling in the

Explanation:

Answer:

Explanation:

Sa=Sa0 +Vot+at²/2

Sa = 0 - 2t+2t²/2

Sa = -2t+t²

Sb = Sb0+Vot+at²/2

Sb = 53 + 0 + 4t²/2

Sb = 53 + 2t²

-2t+t² = 53 + 2t²

t² + 2t - 53 = 0

t = -2 ± \(\sqrt{216}\) / 2

t = 3\(\sqrt{6}\) -1 s

Sb = 53 + 2( 3\(\sqrt{6}\) -1) m

Since the exponent is negative, move the decimal point to the left (backward).

0.000 000 000 000 029 22

Answer: Gamma rays, x-rays, ultraviolet rays, visible light, and infrared rays.

Answer:

C) radio → infrared → ultraviolet → gamma

Explanation:

It Increases left to right therefore it decreases right to left

Answer:

D) 8

Explanation:

Due to the octet rule the most stable atoms will have 8 valence electrons.

The electric force acting on any of the given charges is Q × 1.8 × 10¹² Newton.

Electric force is the attracting or repulsive interaction between any two charged things. Similar to any force, Newton's laws of motion describe how it affects the target body and how it does so. One of the many forces that affect objects is the electric force.

the vertices of a equilateral triangle of sides 10cm long .

The electric force acting on any of the given charges is = 2k(Q/(0.1)²) cos60°

= 2 × 9 × 10⁹ × Q × 100

= Q × 1.8 × 10¹² Newton.

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The "Amount of Ice (grams)" used to chill the water is the independent variable in the data that has been provided. The "Change in Water Temperature (Final Temperature - Initial Temperature)" in Celsius is the dependent variable.

Your exam score is influenced by how much you sleep (an independent variable). (dependent variable). This is reasonable, but Example: The length of your sleep depends on your test results.

The two most important variables in a scientific experiment are independent and dependent variables. The variable that the experimenter controls is the independent variable. The variable that adapts to the independent variable is known as the dependent variable.

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Astronomers refer to as retrograde motion of the planets to an apparent movement of the planets westward from night to night.

The retrograde movement or the retrogradation of the planets is the apparent movement that a planet makes in the opposite direction to the other bodies that make up the system where it is.

This movement is actually an optical illusion that occurs due to the difference in speed between the different planets, looking as if one of them were moving backwards from east to west.

Therefore, we can confirm that the correct answer is option D. apparent movement of the planets westward from night to night.

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Answer:

false

Explanation:

Answer:

It's False

Explanation:

For Example, Suppose, we have two wires of equal length and the same cross sectional, one made up of nichrome and the other made up of copper metal. Then, nichrome wire will have more resistance than the copper wire.

First copper is an element and nichrome is an alloy primarily of nickel, chromium and iron. So that's the first clue noting that the three elements that make up this alloy have a smaller conductivity than copper.

But there's more to the reason for higher resistance. The manner in which the three elements make up the nichrome alloy results in grain boundaries, dislocations and voids that interrupt the crystal lattice of the alloy which for pure copper is much more uniform. These differences of the crystal lattices either allow smooth flow of electrons as in copper or scattering as in nichrome. Scattering is the dominant effect that leads to the higher resistance, combined with the basic differences in constituent conductivities.

I Hope This Helps.

Conociendo la longitud y frecuencia de un péndulo, queremos encontrar la longitud de otro pendulo de tal forma que tenga otra frecuencia.

Veremos que la longitud del nuevo péndulo debe ser 6.25m

Sabemos que un péndulo de 4m de longitud tiene una frecuencia de 5Hz.

La frecuencia de un péndulo está dada por:

\(f = \frac{1}{2*\pi} *\frac{g}{l}\)

Donde g es la aceleración gravitatoria y l es la longitud del péndulo, remplazando los datos que tenemos en esa ecuación obtenemos:

\(5 Hz = \frac{1}{2*3.14} *\sqrt{\frac{g}{4m} } \\\\(5Hz*2*3.14)^2*4m = g = 3,943.8 m/s^2\)

Ahora debemos encontra la longitud de tal forma que la frecuencia sea 4Hz, entonces debemos resolver:

\(4Hz = \frac{1}{2*3.14} *\sqrt{ \frac{3943.8m/s^2}{l} }\\\\4hz*2*3.14 = \sqrt{ \frac{3943.8m/s^2}{l} }\\\\l =\frac{3943.8m/s^2}{ (4hz*2*3.14)^2} = 6.25m\)

La longitud del nuevo péndulo deve ser 6.25m

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Answer:

C. \(p_{A} = -p_{B}\) and \(K_{A} = K_{B}\).

Explanation:

The two hockey pucks travels in opposite sides with velocities of same magnitude, by definitions of linear momentum and translational kinetic energy:

Linear momentum

Hockey puck A

\(p_{A} = m\cdot v\) (1)

Hockey puck B

\(p_{B} = -m\cdot v\) (2)

\(p_{A} = -p_{B}\)

Translational kinetic energy

Hockey puck A

\(K_{A} = \frac{1}{2}\cdot m\cdot (v)^{2}\)

\(K_{A} = \frac{1}{2}\cdot m \cdot v^{2}\) (3)

Hockey puck B

\(K_{B} = \frac{1}{2}\cdot m\cdot (-v)^{2}\)

\(K_{B} = \frac{1}{2}\cdot m \cdot v^{2}\) (4)

\(K_{A} = K_{B}\)

Hence, the correct answer is C.

The efficiency of motor is 90.58%.To determine the efficiency of the motor, we need to calculate the input power and the output power, and then divide the output power by the input power

The input power can be calculated using the formula:

Input Power = Voltage × Current

Given that the voltage is 230 V and the current is 24 A, we have:

Input Power = 230 V × 24 A

Input Power = 5520 W (or 5.52 kW)

The output power of the motor is given as 5 kW (since it is a 5 kW motor).

Now, we can calculate the efficiency:

Efficiency = (Output Power / Input Power) × 100%

Efficiency = (5 kW / 5.52 kW) × 100%

Efficiency ≈ 90.58%

Therefore, the efficiency of this motor is approximately 90.58%.

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Brutus grabs Fred in a tight grip, and they fall to the ground.

The distance they slide is 0.0915m.

As given in the question

The mass of Fred (\(M_1\)) is 65 kg

The mass of Brutus (\(M_2\)) is 130kg

Speed of Fred running with foot ball (\(V_1\)) is  -5.8m/s ( negative direction)

Speed of Brutus (\(V_2\)) is 4m/s

The coefficient of friction is given as 0.30

By applying the law of conservation of momentum is

\(M_2V_2 - M_1V_1=(M_1+M_2)V\)

\(M_1\) is the mass of first object

\(M_2\) is the mass of second object

\(V_1\) is the velocity of first object

\(V_2\) is the velocity of the second object

V is the velocity after colliding

Now

130 x 4 - 65 x 5.8= ( 65 + 130) V

520 - 377 = 195V

195V =143

V = 0.733m/s

Now acceleration due to friction is

=> \(\mu_k\ g\)

=> 0.3 x 9.8

=.>2.94m/\(s^2\)

To find the distance

\(v^2-u^2=2as\)                             ( where u = 0)

=> \((0.733)^2=2 \times 2.94 \ s\)

=>  s = 0.0915m

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Answer:

A and B is positive charge

C_negative

Explanation:

because when an ebonite is rubbed with fur produce negative charge due to law of electrostatic like charge repel and unlike attract