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My name is Ann [436]
3 years ago
9

How does the Sled Wars Gizmo demonstrate this scientific law? EXPLAIN

Physics
1 answer:
Lostsunrise [7]3 years ago
5 0

Answer:Explore acceleration, speed, momentum, and energy

Explanation:

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1. ability to cause change * Pick One PLEASE HELP ME
kkurt [141]

Answer:

electromagnetic wave  i think

Explanation:

8 0
3 years ago
Read 2 more answers
Which of these best describes how the kinetic energy of carbon dioxide molecules change as the carbon dioxide is heated?
spin [16.1K]
B.
carbon dioxide molecules have more energy; therefore, the kinetic energy increases
4 0
3 years ago
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What distance separates Earth and the Sun? A 300,000 km per second B Eight light-minutes C 149 million light-seconds D One light
lina2011 [118]

Answer:

B Eight light-minutes

Explanation:

In the case when the distance separated earth and the sun so here we orbit the sun for a 150 million km distance and the light moves would be 300,000 kilometers per second

Now divide this

= 150 million ÷ 300,000 kilometers per second

= 500 seconds

This 500 seconds represent 8 minutes and 20 seconds

Hence, option B is correct

5 0
3 years ago
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Which property helps to explain differences in the specific heat capacities of
tatyana61 [14]

Answer:

D. Forces between molecules

Explanation:

Specific heat capacity of water can be defined as the amount of heat a gram of water must lose or absorb in order to change its temperature by a degree Celsius. It is measured in Joules per kilogram per degree Celsius (J/kg°C). Generally, the specific heat capacity of water is 4.182J/kg°C and is the highest among liquids.

Mathematically, the specific heat capacity of a substance is given by the formula;

c = \frac {Q}{mdt}

Where;

Q represents the heat capacity or quantity of heat.

m represents the mass of an object.

c represents the specific heat capacity of water.

dt represents the change in temperature.

Cohesion is a property of water and it typically refers to the attraction between molecules of water which holds them together.

In Science, the property which helps to explain differences in the specific heat capacities of two substances is the forces between molecules.

This ultimately implies that, the more closely bonded the atoms of a substance are, the higher or greater would be the substance's specific heat capacity. Thus, it varies for the various states of matter i.e solid, liquid and gas.

4 0
2 years ago
To teach you how to find the parameters characterizing an object in a circular orbit around a much heavier body like the earth.T
PolarNik [594]

Answer:

a)  v = √ G M / r, , b) K = ½ m G M / r, , c)  T = 2 π √ (r³ / GM)

, d)  L = m √ (rGM)

Explanation:

The formula of universal gravitation

     F = G m M / r²

Part A) orbital speed

Let's use Newton's second law

    F = m a

Where the acceleration is centripetal

    a = v² / r

Let's replace

    G m M / r² = m v² / r

    v = √ G M / r

Part B)

Kinetic energy

     K = ½ m v²

     K = ½ m G M / r

Part C)

The orbital period The speed (speed module) is constant, so we can use the relationships

    v = d / t

The distance in the length of the circle

    d = 2π r

    T = t = 2π r / (√ G M / r) = 2π r √(r / GM)

    T = 2 π √ (r³ / GM)

Part D) The angular momentum

     L = I w

The satellite is small, so we can approximate it to a particle

     I = m r²

The angular and linear velocity are related

     v = w r

    w = v / r

    w = √(G M / r) (1 / r)

We replace

    L = m r² 1 / r √(GM / r)

    L = m r √ (GM / r)

    L = m √ (rGM)

Part E) let's calculate the order of magnitude of the quantities

    v = √G M / r

The value of the distance from the plant center to the satellite

    r = Re + h

the height of the satellites is less than 1 10⁶m from the surface of the earth,

    r = 6.37 10⁶ + 1 10⁶ = 7.37 10⁶

    v = √ (6.67 10⁻¹¹ 5.98 10²⁴ / 7.37 10⁶)

    v = √ (5.4 10⁶)

    v ~ 10³ m / s

    K = ½ m G M / r

The satellite mass about 10⁴ kg

    K = ½ 10⁴ 6.67 10⁻¹¹ 5.98 10²⁴ / 7.37 10⁶

    K ~ 10¹¹ J

    U = G m M / r

    U ~ 10¹¹ J

    L = m √ (rGM)

    L = 10⁴ √ (7.37 10⁶ 6.67 10⁻¹¹ 5.98 10²⁴)

    L ~ 10¹⁴ kg m2 / s

8 0
3 years ago
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