2 years ago

Explain why some objects fall faster than other objects,

1 answer:

8 0

objects that are more dense, or have more mass, fall at a faster rate than less dense objects, due to this air resistance. A feather and brick dropped together. Air resistance causes the feather to fall more slowly.

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Racing greyhounds are capable of rounding corners at very high speeds. A typical greyhound track has turns that are 45 m diamete

Readme [11.4K]

Answer:

In m/s^2:

a=11.3778 m/s^2

In units of g:

a=1.161 g

Explanation:

Since the racing greyhounds are capable of rounding corners at very high speed so we are going use the following formula of acceleration for circular paths.

$a=\frac{v^2}{r}$

where:

v is the speed

r is the radius

Now,

$a=\frac{16^2}{45/2}\\ a=11.3778 m/s^2$

In g units:

$a=\frac{11.3778\ g}{9.8}\\ a=1.161\ g$

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2 years ago

Why is the current atomic model called the "electron could model"

vlada-n [284]

The diagram is showing a 3d model of an atom, with all of the electrons demonstrated in a rounded shape, which resembles a cloud, thus being called an electron cloud.

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3 years ago

A2 kg object moves at a constant 5 m/s across a level surface. Determine its kinetic energy.

AURORKA [14]

KE = 1/2mv^2
KE= 1/2(2)(5)^2
KE= 25 J

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2 years ago

What is the relationship between thermal energy and conduction convection and radiation

lapo4ka [179]

The higher the thermal energy the faster the conduction convection and radiation take place as the particles have more kinetic (movement) energy

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2 years ago

During a neighborhood baseball game in a vacant lot, a particularly wild hit sends a 0.148 kg baseball crashing through the pane

LiRa [457]

Answer:

Explanation:

mass of baseball, m = 0.148 kg

initial velocity, u = 15.5 m/s

final velocity, v = 10.1 m/s

Impulse is defined as the change in momentum of the body.

Impulse = change in momentum

I = m (v - u)

I = 0.148 (10.1 - 15.5)

I = - 0.8 Ns

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3 years ago