Two billion people jump up in the air at the same time with an average velocity of 7.0 m/sec. If the mass of an average person is 60 kilograms and the mass of Earth is 5.98 × 1024 kilograms:
a. What is the total momentum of the two billion people?
b. What is the effect of their action on Earth?

Answers

Answer 1

Answer: p=m x v =60 x 7.0= 420
total momentum = 420 x 2,000,000,000=dnt have a calculator
thier effect would shake the earth and kill some organism because they jump up at the same time and they wil probably land the same time .

Answer 2

Answer:

Answer:

if jonah from david dobrik was there then that means they all broke thri the earth lol

Explanation:

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True or False? A negative energy balance occurs when you take in more calories than you need, and a positive energy balance occurs when you take in fewer calories than you need.

Oil flows upward in the wick of a lantern because of liquid property called

Answers

Capillarity "Capillarity causes the part of the surface of a liquid in contact with a solid, to be either elevated above (e.g. water), or depressed below (e.g. mercury), the rest of the surface. This trait is named for the behaviour of liquids in capillary tubes placed perpendicular to the surface. The forces operating within capillarity are cohesion, adhesion, and surface tension."

1. The sponge is classified in the. kingdom.

Answers

Answer:

the sponge? huhh what

two truckers are traveling directly away from each other at the same speed. If one trucker sounds her horn at a frequency of 206 Hz, and the other trucker hears a frequency of 189 Hz, determine the speed of the trucks. Use the speed of sound as 343 m/s. m/s

Answers

Answer:

v' = 14.76 m/s

Explanation:

given,

frequency of the one truck = 206 Hz

apparent frequency ,f' = 189 Hz

speed of sound, v = 343 m/s

speed of observer (v_o)and source (v_s) = v'

now, using Doppler's effect

$f' = (v-v_o)/(v+v_s)\ f$

$f' = (v- v')/(v+v')\ f$

$189 = (343- v')/(343+v')\ 206$

$0.9174= (343- v')/(343+v')$

314.69 + 0.9174 v' = 343 - v'

1.9174 v' = 28.30

v' = 14.76 m/s

hence, the speed of the truck is equal to 14.76 m/s

Higher-frequency sound waves are perceived as having _____.A. higher pitch
B. lower pitch
C. higher volume
D. lower volume

Answers

higher frequency sound waves are perceived as having higher pitch

Final answer:

Higher-frequency sound waves are perceived as having a higher pitch. This is because the pitch of a sound, which our brains perceive as either high or low, is directly related to the frequency of the sound wave. Finally, the volume or loudness of a sound is related to the amplitude of the wave, not its frequency.

Explanation:

Higher-frequency sound waves are perceived as having a A. higher pitch.

The pitch of a sound is directly related to its frequency. In other words, as the frequency of a sound wave increases, the pitch that we hear also increases. Thus, sounds with higher frequencies are heard as having a higher pitch. This is why when you tune a musical instrument, increasing the tension of a string will increase its frequency of vibration, producing a higher pitch.

On the other hand, volume, also known as loudness, is related to the amplitude of sound waves, not their frequency. So higher-frequency sound waves are not necessarily louder or softer, their volume depends on other factors such as the amplitude of the wave.

Learn more about Frequency and Pitch here:

brainly.com/question/32136311

#SPJ3

Which explanation of the solar system best fits the observations of the planets and how they orbit the sun?A. The gravity of a large, massive star passing the sun ripped off blobs of material from it that formed the planets

B. The planets formed at the center of a collapsing spinning cloud of gas and dust

C. The sun and planets formed from a collapsing spinning cloud of gas and dust.

D. A comet hit the sun and sent off fragments the became the planets.

I'm pretty sure it's C?

Answers

Answer: C. The sun and planets formed from a collapsing spinning cloud of gas and dust.

Explanation:

The entire solar system was formed from solar nebula. A nebula is a cloud of dust and gases. When this cloud spins and contracts, a protostar is formed. The temperature rises and nuclear fusion kicks in forming a star. The rest of the matter forms planets and other celestial bodies of the star system. Similarly, the Sun was formed in solar nebula from collapsing of spinning cloud of dust and gas.

You're right, Answer C

The dust and gas accumulate to form a solar nebula, which later on creates the star and the planets.

An underground gasoline tank can hold 1.07 103 gallons of gasoline at 52.0°F. If the tank is being filled on a day when the outdoor temperature (and the gasoline in a tanker truck) is 97.0°F, how many gallons from the truck can be poured into the tank? Assume the temperature of the gasoline quickly cools from 97.0°F to 52.0°F upon entering the tank. (The coefficient of volume expansion for gasoline is 9.6 10-4 (°C)−1.)

Answers

Answer:

1069.38 gallons

Explanation:

Let V₀ = 1.07 × 10³ be the initial volume of the gasoline at temperature θ₁ = 52 °F. Let V₁ be the volume at θ₂ = 97 °F.

V₁ = V₀(1 + βΔθ) β = coefficient of volume expansion for gasoline = 9.6 × 10⁻⁴ °C⁻¹

Δθ = (5/9)(97°F -52°F) °C = 25 °C.

Let V₂ be its final volume when it cools to 52°F in the tank is

V₂ = V₁(1 - βΔθ) = V₀(1 + βΔθ)(1 - βΔθ) = V₀(1 - [βΔθ]²)

= 1.07 × 10³(1 - [9.6 × 10⁻⁴ °C⁻¹ × 25 °C]²)

= 1.07 × 10³(1 - [0.024]²)

= 1.07 × 10³(1 - 0.000576)

= 1.07 × 10³(0.999424)

= 1069.38 gallons

Final answer:

To calculate the amount of gasoline that can be poured into the tank, we need to find the change in volume of the gasoline when its temperature changes from 97.0°F to 52.0°F. Using the equation for volume expansion, we can calculate this change in volume to be approximately 258 gallons.

Explanation:

To calculate the amount of gasoline that can be poured into the tank, we need to find the change in volume of the gasoline when its temperature changes from 97.0°F to 52.0°F. We can use the equation for volume expansion to calculate this change in volume:

ΔV = V₀ * β * ΔT

Where ΔV is the change in volume, V₀ is the initial volume, β is the coefficient of volume expansion, and ΔT is the change in temperature.

In this case, the initial volume V₀ is 1.07 * 10³ gallons, the coefficient of volume expansion β is 9.6 * 10⁻⁴ (°C)⁻¹, and the change in temperature ΔT is (52.0°F - 97.0°F) = -45.0°F.

Converting the change in temperature to Celsius: ΔT = (45.0°F) * (5/9) = -25.0°C.

Plugging in these values into the equation, we get:

ΔV = 1.07 * 10³ * 9.6 * 10⁻⁴ * -25.0 = -258 gallons.

Therefore, when the gasoline is poured into the tank, approximately 258 gallons will be poured out of the truck.