All categories

3 years ago

A boy walking in the street potential or kenetic energy?

Chemistry

2 answers:

qwelly [4]3 years ago

7 0

Kinetic

because the boy is walking in the street soo it has force to use

REY [17]3 years ago

7 0

Answer:

$\boxed {\tt Kinetic \ energy}$

Explanation:

First, let's define kinetic energy and potential energy.

Kinetic

energy an object has due to motion

Potential

energy an object has stored due to its position, charge, arrangement or other factors

Since the boy is walking down the street, the boy is in motion. Therefore, the energy must be kinetic energy.

You might be interested in

If 120.3 mL of water is shaken with oxygen gas at 2.1 atm, it will dissolve 0.0043 g O2. Estimate the Henry's law constant for t

nikklg [1K]

Answer: The Henry's law constant for oxygen gas in water is $1.702\times 10^{-5}g/mL.atm$

Explanation:

To calculate the molar solubility, we use the equation given by Henry's law, which is:

$C_{O_2}=K_H\times p_{O_2}$

where,

$K_H$ = Henry's constant = ?

$C_{O_2}$ = solubility of oxygen gas = $0.0043g/120.3mL$

$p_{O_2$ = partial pressure of oxygen gas = 2.1 atm

Putting values in above equation, we get:

$0.0043g/120.3mL=K_H\times 2.1atm\\\\K_H=\frac{0.0043g}{120.3mL\times 2.1atm}=1.702\times 10^{-5}g/mL.atm$

Hence, the Henry's law constant for oxygen gas in water is $1.702\times 10^{-5}g/mL.atm$

7 0

3 years ago

Emily wanted to see what battery lasted the longest. She put each battery into a clock and recorded the time that the clock stop

Andru [333]

Answer:

independent variable -- different batteries

dependent variable -- the time that clock stop

Explanation:

In an experiment or a research study, there are two type of variables that can affect the result of the experiment or the conclusion. They are independent variable and the dependent variable.

An independent variable may be defined as that variable in an experiment which can be changed or can be controlled in the scientific experiment in order to test the effect on the dependent variable. It cannot be changed by other variables.

On the other hand, dependent variable are those are those which can be altered or change that can affect the experiment.

In the context, Emily uses the different types of the batteries as an independent variable and the time where the clock stopped in the dependent variable in her research.

6 0

3 years ago

Gaseous hydrogen iodide is placed in a closed container at 425∘C, where it partially decomposes to hydrogen and iodine: 2HI(g)⇌H

murzikaleks [220]

Answer:

0.0184

Explanation:

Let's consider the following reaction at equilibrium.

2 HI(g) ⇌ H₂(g) + I₂(g)

The concentration equilibrium constant (Kc) is equal to the product of the concentration of the products raised to their stoichiometric coefficients divided by the product of the concentration of the reactants raised to their stoichiometric coefficients.

Kc = [H₂] × [I₂] / [HI]²

Kc = (4.78 × 10⁻⁴) × (4.78 × 10⁻⁴) / (3.52 × 10⁻³)²

Kc = 0.0184

5 0

3 years ago

Which of the following is a challenge of prosthetic engineering that has been met through tissue engineering?

solniwko [45]

Answer:

biocompatibility

Explanation:

5 0

2 years ago

How do water molecules move away from their H-O-H configuration to become new molecules?

maksim [4K]

Answer:

A water molecule is consists of two hydrogen atom, each bound to the central oxygen atom through a covalent chemical bond.

Water molecules can form new molecules by moving away from their H-O-H configuration due to thermal motions and rotations. Thermal motions and rotations break the individual hydrogen bonds and change the H-O-H configuration influenced by the temperature and pressure.

7 0

3 years ago

A boy walking in the street potential or kenetic energy?​

A boy walking in the street potential or kenetic energy?