Which of the following chemical equations demonstrates that atoms are conserved during a chemical reaction?

Determine which heat transfers below are due to the process of conduction. I) You walk barefoot on the hot street and it burns y

Taya2010 [7]

Answer:

I) You walk barefoot on the hot street and it burns your toes.

II) When you get into a car with hot black leather in the middle of the summer and your skin starts to get burned.

Explanation:

In conduction mode of heat transfer we know that the energy is transferred from one system to other system due to direct contact of two bodies

Here due to this direct contact the energy is transferred via a given solid or liquid medium

In this type of heat transfer medium particles will remain in its own position only the energy is transferred.

So here we can say the correct answer will be

I) You walk barefoot on the hot street and it burns your toes.

II) When you get into a car with hot black leather in the middle of the summer and your skin starts to get burned.

3 0

4 years ago

What maximum upward acceleration can it give the elevator without breaking?.

MariettaO [177]

The maximum upward acceleration that the elevator can have without breaking is = 10.36m/s².

<h3>How to calculate maximum upward acceleration?</h3>

To calculate the maximum acceleration of the elevator we must take into account Newton's second law and its formula that takes into account the following aspects:

F = Is the force applied in newtons.
m = Is the mass of the object in kilograms.
a = Is the acceleration of the object in meters per second squeared.

F = m × a

According to the above, we apply the values we have as follows:

a = $\frac{F}{m}$

a = $\frac{21750N}{2100Kg}$

a = 10.36 m/s²

Note: This question is incomplete because some information is missing. Here is the complete information.

Learn more about acceleration in: brainly.com/question/13312735

7 0

3 years ago

In a collision experiment, the ratio of the velocity change between two carts of equal inertia is found to equal 1.

VashaNatasha [74]

Answer:

A) Therefore if I double the masses with are in the two terrine they are simplified and the radii of the speeds remain the same

B) If the masses are maintained and the speeds are doubled, the radius of the two speeds remains the same

Explanation:

A vehicle crash problem must be solved with the equation of the moment,

Initial instant Before crash

p₀ = m v₁ + mv₂

After the crash

$p_{f}$ = m $v_{1f}$ + m $v_{2f}$

p₀ = $p_{f}$

If the speed ratio before and after the crash is one

p₀ / $p_{f}$ = 1

We can assume that initially one of the cars was stopped

m v₁₀ = m $v_{2f}$

v₁₀ = $v_{2f}$

For the two speeds to be equal, the masses of the vehicles must be the same.

A) Therefore if I double the masses with are in the two terrine they are simplified and the radii of the speeds remain the same

B) If the masses are maintained and the speeds are doubled, the radius of the two speeds remains the same

5 0

3 years ago

A girl on roller skates accelerates at a rate of 2 m/sec/sec with a force of 100 N. What is her mass?

Dvinal [7]

By the newtons Second Law:

F = ma

Solving for m:

m = F / a

m = 100 N / 2 m/s²

<h3>m = 50 kg → ANSWER</h3>

8 0

3 years ago

A number of conditions are required for a population to be in Hardy-Weinberg equilibrium. Which of the following are correct des

S_A_V [24]

Answer: A, B, F

Explanation:

7 0

3 years ago

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