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Afina-wow [57]
3 years ago
15

Which statement about subatomic particles is true?

Physics
1 answer:
navik [9.2K]3 years ago
4 0

A. An electron has far less mass than either a proton or neutron.

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Weak winds that blow for short periods of time with a short fetch.
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A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 44.1m/s^2 . The acce
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The acceleration and distance is related to the following expression:
y=v0*t + a*t^2/2 ; v0=0 
y=44.1*100/2 = 2205m 
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from that height it will just be subjected to the gravitational acceleration 
0=v_acc^2 -2g*y_free 
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What quantity does a Percent measure?
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In mathematics, a percentage is a number or ratio expressed as a fraction of 100.

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1. explain why mid-sized cars and SUVs have different rollover fatality rates.
iris [78.8K]

Answer:

1.  They generally have poorer fuel efficiency and require more resources to manufacture than smaller vehicles, thus contributing more to climate change and environmental degradation. Their higher center of gravity increases their risk of rollovers.

2. Mid-sized cars and SUVs both have a fixed object fatality rate of 2.6/BVM. This is most likely because they have a similar mass and inertia. The force of the crash is likely to have about the same deceleration in both vehicles.

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2 years ago
During the first 6 years of its operation, the Hubble Space Telescope circled the Earth 37,000 times, for a total of 1,280,000,0
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v = 384km/min

Explanation:

In order to calculate the speed of the Hubble space telescope, you first calculate the distance that Hubble travels for one orbit.

You know that 37000 times the orbit of Hubble are 1,280,000,000 km. Then, for one orbit you have:

d=\frac{1,280,000,000km}{37,000}=34,594.59km

You know that one orbit is completed by Hubble on 90 min. You use the following formula to calculate the speed:

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hence, the speed of the Hubble is approximately 384km/min

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2 years ago
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