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3 years ago

Summarize the two stages of cellular respiration.

1 answer:

5 0

Glycolysis. In glycolysis, glucose—a six-carbon sugar—undergoes a series of chemical transformations. In the end, it gets converted into two molecules of pyruvate, a three-carbon organic molecule.
Pyruvate oxidation. Each pyruvate from glycolysis goes into the mitochondrial matrix—the innermost compartment of mitochondria.

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How do you know when motion has occurred?

Masteriza [31]

An object in motion changes position

7 0

4 years ago

two vehicles have a head on collision. one vehicle has a mass of 3000 kg and moves at 25 m/s while the second vehicle has a mass

emmasim [6.3K]

Answer:

The speed of the combined vehicles is 6.82m/s

Explanation:

Using the law of conservation of momentum which stayed that the sum of momentum of bodies before collision is equal to their sum of momentum after collision. After collision, both object moves with the same velocity.

Momentum = mass×velocity

Before collision:

Momentum of vehicle or mass 3000kg moving with velocity 25m/s

= 3000×25

= 75000kgm/s

Pa = 75000kgm/s

Momentum of vehicle with mass 2500kg moving with velocity of -15m/s

= 2500×-15

= -37500kgm/s

After collision:

Momentum = (3000+2500)V

Where v is their common velocity

Momentum after collision = 5500V

Based on the law:

75000+(-37500) = 5500V

75000-37500 = 5500V

37500 = 5500V

V = 37500/5500

V = 6.82m/s

7 0

3 years ago

A race-car drives around a circular track of radius RRR. The race-car speeds around its first lap at linear speed v_iv i v, st

Bond [772]

Answer and Explanation: Centripetal Acceleration is the change in velocity caused by a circular motion. It is calculated as:

$a_{c}=\frac{v^{2}}{r}$

v is linear speed

r is radius of the curve the object in traveling along

For its first lap:

$a_{c}_{1}=\frac{v_{i}^{2}}{R}$

After a while:

$a_{c}_{2}=\frac{(4v_{i})^{2}}{R}$

$a_{c}_{2}=\frac{16v_{i}^{2}}{R}$

Comparing accelerations:

$\frac{a_{c}_{2}}{a_{c}_{1}}=\frac{16.v_{i}^{2}}{R}.\frac{R}{v_{i}^{2}}$

$\frac{a_{c}_{2}}{a_{c}_{1}}=16$

$a_{c}_{2}=16a_{c}_{1}$

With linear speed 4 times faster, centripetal acceleration is 16 times greater.

4 0

3 years ago

Two electric motors drive two elevators of equal mass in a three-story building 10 meters tall. Each elevator has a mass of 1,00

Lady bird [3.3K]

Answer:

19620 Watt = 19.62 kWatt

Explanation:

Power output (P) is work (W) divided by time (t): P = W/t

A work (W) is a product of a force (F) and a distance (d): W = F · d

Since the force is a product of mass and acceleration: F = m · a

then work would be: W = m · a · h

P = W/t

W = m · a · h

P = m · a · h / t

We have:

P = ?

m = 1000 kg

a = 9.81 m/s² (gravitational acceleration on the Earth)

h = 10 m

t = 5s

P = m · a · h / t = 1000 kg · 9.81 m/s² · 10 m / 5 s = 19620 Watt = 19.62 kWatt

8 0

3 years ago

A cold coke bottle is on the pan of a balance and is left open. What happens to its weight?

Arlecino [84]

Answer:

It's weight would decrease over time.

Explanation:

The cold coke is going to stabilise in the room temperature. This causes the coke to heat up to room temperature. When the coke heats up, some molecules acquire enough kinetic energy that the evaporate. The evaporation of the molecules causes a decrease in weight.

Hope it helped!

3 0

3 years ago

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