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Eva8 [605]
4 years ago
10

Two hockey players, Z and X, are standing face-to-face and stationary on the ice. Skater Z has a mass of 72.5 kg. Skater X has a

mass of 65.3 kg. Skater Z shoves Skater X. Which statement below best represents the skaters' momenta after the shove?
1. The momenta of the skaters after the shove are equal in magnitude but opposite in direction. Skater Z's mation is an ex. of recoil.

2. the momenta of the skaters after the shove are equal in magnitude and in direction.

3. the momenta of te skaters after the shove are equal in magnitude but opposite in direction. Skater q's motion is an ex of recoil.

4. the momenta of the skaters after the shove are of inverse proporion in magnitude and opposite in direction. the motion of both skaters are ex of recoil.
Physics
1 answer:
Alik [6]4 years ago
5 0

Answer:

1. The momenta of the skaters after the shove are equal in magnitude but opposite in direction. Skater Z's mation is an ex. of recoil.

Explanation:

The moment is preserved before and after the push (impact), this is called conservation of the moment, skater x will move in the direction of the force of the push, but skater z will move in the opposite direction with a different speed, but retaining the initial moment imparted.

Recall that linear momentum is defined as the product of body mass by Velocity

P = m * v

where:

P = linear momentum [kg*m/s]

m = mass [kg]

v = velocity [m/s]

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"The earth system": includes parts that affect one another. is the highest level of system possible. is powered solely by the Su
nalin [4]

Answer:

Includes parts that affect one another

Explanation:

The earth system is an integrated system that represents the planet Earth. This system is inside the Solar System, which is inside the Milk Way Galaxy system, which is inside the Universe. So, the earth system is not the highest level of the system possible.

This system can be subdivided into four main systems: geosphere (the rock and minerals), atmosphere (the air), hydrosphere (the oceans, sea, rivers, and lagoons), and the biosphere (the life). These parts can affect one another and are integrated. The life consumes the atmosphere, geosphere, and hydrosphere, for example.

The most important power of the earth system is the Sun, but it's not the only power, especially because human activity uses other resources like petroleum, water, nuclear power, etc.

The system is affected by the Sun, which is in the space and is the primary energy source, by the Moon that causes the tide, and it can be affected by meteors too.

3 0
4 years ago
What type of plant tissue is NOT part of the vascular bundle?
jek_recluse [69]

Answer:

Cortex

Explanation:

3 0
3 years ago
Read 2 more answers
Earth's rotational axis completes one precession every _____.
ruslelena [56]

A). Earth completes one rotation on its rotation axis
every (3 minutes and 56 seconds less than 24 hours).
This causes night and day.  It's rotation, not precession.

B).  Earth completes one orbital revolution around the sun
every (365 plus a little bit) days.  It's revolution, not precession.

C).  I'm not sure what happens on a cycle of 512 years.
It may have something to do with the moon.  But whatever
it is, it's not precession.

D).  When you spin a top and it starts to run down, the first
thing that happens is that the handle of the top, or the point
on top of the top, starts moving in a circle.  That's precession.
That's what the Earth's axis is doing.  The north pole points
toward the north star (Polaris) now.  But the north pole is
actually drawing out a big circle in the sky, and other stars
will become the "north star" far in the future.
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6 0
4 years ago
Gina is burning different fuels label the diagram
Anna35 [415]

The answer for the missing labeling as (i) and (ii) will be (i)thermometer and (ii)condenser.

<h3>What is a burner?</h3>

A burner is a device intended to guarantee that the flame is stabilized.

By creating a proper flow field to cause the initial temperature rise, a  The fuel/air combination is heated from within the flame to the ignition temperature.

When the flame or heat is created in fuel-burning or heat-generating equipment.

Wood, coal, kerosene, LPG, petrol, and diesel are a few of the often utilized fuels. In order to cook, heat, power vehicles, and create electricity, we utilize fuels.

The barrel, collar, air holes, gas intake, gas valve, and base are the different pieces of a Bunsen burner. Each component is essential to the process of creating a flame.

Hence, the answers for the missing labeling will be  (i) thermometer and (ii) condenser.

To learn more about the burner refer;

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7 0
2 years ago
you hold in your hand a block of material with 3x10^27 protons , 3x10^37 neutrons , and 3.1x10^27 electrons. what is the mass of
krok68 [10]

1) The total mass is 5.01\cdot 10^{10} kg

2) The total charge is -1.6\cdot 10^{-7} C

Explanation:

1)

To calculate the total mass of the particles, we have to write down the mass of each particle first:

Proton: m_p = 1.67\cdot 10^{-27} kg

Neutron: m_n = 1.67\cdot 10^{-27} kg

Electron: m_e = 9.11\cdot 10^{-31} kg

Here we have:

3x10^27 protons

3x10^37 neutrons

3.1 x10^27 electrons

So, the total mass is:

M=(3\cdot 10^{27})m_p + (3\cdot 10^{37})m_n + (3.1\cdot 10^{27})m_e=5.01\cdot 10^{10} kg

2)

To calculate the total charge of the particles, we have to write down the charge of each particle first:

Proton: q_p = 1.6 \cdot 10^{-19}C

Neutron: q_n = 0

Electron: q_e = -1.6\cdot 10^{-19}C

Here we have:

3x10^27 protons

3x10^37 neutrons

3.1 x10^27 electrons

So, the total charge is:

Q=(3\cdot 10^{27})q_p + (3\cdot 10^{37})q_n + (3.1\cdot 10^{27})q_e=-1.6\cdot 10^{-7} C

Learn more about protons, neutrons and electrons:

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7 0
3 years ago
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