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3 years ago

Which of the following best describes malleability?

1 answer:

3 0

It would be hardness that in general best describes malleability, since malleability is a measurement of an objects ability to form and take difference shapes.

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Which describes an object’s speed in free fall?

Mrac [35]

"Free fall" is the motion of an object when gravity is the ONLY force
acting on it.

In true 'free fall' the speed of an object increases at a constant rate
for the total duration of the fall. The rate of increase, on or near the
Earth's surface, is 9.8 meters per second for each second of fall.

True free fall is almost impossible to observe in everyday life, because
whenever we see anything falling, it's almost always falling through air,
so gravity is NOT the only force acting on it. The friction due to the
motion through air works against the gravitational force. In many cases,
the result is that the object's speed eventually stops increasing and
becomes constant, at a speed often described with the faux technical,
high-fallutin' sounding phrase "terminal velocity". It must be understood
that 'terminal velocity' is NOT a property of gravity or of free fall, but is
only a result of falling through some surrounding stuff that interferes with
the process of true 'free fall'.

6 0

4 years ago

Read 2 more answers

A car moving along a racetrack has a centripetal acceleration of 11.3 m/ s2. If the speed of the car is 30.0 m/s, what is the di

attashe74 [19]

Answer:

Explanation:

The formula for centripetal acceleration is

$a_c=\frac{v^2}{r}$ and filling in:

$11.3=\frac{(30.0)^2}{r}$ and solving for r:

$r=\frac{(30.0)^2}{11.3}$ gives us that

r = 79.6 m

5 0

3 years ago

The garcias like to keep their 40.0 watts front prch light on at night to welcome visitors. if the light is on from 6pm until 7a

Gnesinka [82]

Answer:

For 1 week total cost will be equal to 0.2912

Explanation:

We have given power P = 40 watt

Light is on from 6 pm to 7 am

So total time = 13 hours

We know that energy is given by

$Energy=power\times time$

So energy will be $E=40\times 13=520watt-hour=0.520Kwh$

We have given cost per KWh is 0.08

So total cost per day will be = 0.08 ×0.520 = 0.0416

For 1 week that is for 7 day total cost will be = 7×0.0416 = 0.2912

6 0

4 years ago

The temperature of an object is a measure of the average potential energy of the molecules in the object.

pav-90 [236]

Answer:

false

Explanation:

the temperature of an object is a measure of the average KINETIC ENERGY of the molecules in the object (not potential energy)

3 0

3 years ago

How do high-energy electrons from glycolysis and the krebs cycle contribute to the formation of atp from adp in the electron tra

ivanzaharov [21]

Answer

Together with glycolysis, The Krebs cycle, and the electron transport chain release about 36 molecules of ATP per molecule of glucose.The Krebs cycle uses the two molecules of pyruvic acid formed in glycolysis and yields high-energy molecules of NADH and flavin adenine dinucleotide (FADH2), as well as some ATP. The electron transport chain forms a proton gradient across the inner mitochondrial membrane, which drives the synthesis of ATP

5 0

4 years ago