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Temka [501]
3 years ago
12

Select the correct answer. Which two factors does the power of a machine depend on? A. work and distance B. force and distance C

. work and time D. time and distance
Chemistry
1 answer:
Furkat [3]3 years ago
7 0

Answer:

C. Work and time

Explanation:

Power is the rate work is done, so this would involve how long it would take to do a certain amount of Work and it is also the measure of the transfer of energy over a period of time.

The formula for power is:

P = \dfrac{W}{t}

Where:

P = Power

W = Work

t = time

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2 years ago
Using a value of Ksp = 1.8 x 10-2 for the reaction PbCl2 Pb+2(aq) + 2Cl -(aq). If the value of Ksp was determined to be only 1.2
ohaa [14]

Answer:

The correct answer is option D, that is, the ions are now combining to reduce their concentrations.

Explanation:

On the basis of the chemical equation:  

PbCl₂ (s) ⇒ Pb²⁺ (aq) + 2Cl⁻ (aq)

It is mentioned that the value of Ksp is 1.8 × 10⁻²

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2 years ago
HElP PLS!! 20 points Which statement best describes a characteristic unique to renewable resources?
Fofino [41]

Answer:

renewable resources are abundant???

5 0
2 years ago
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Which of a following elements has the Smallest atomic radius 1. Ge 2. SI 3. Carbon 4. Sn​
Artyom0805 [142]

Answer:

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8 0
3 years ago
Carbon dioxide (CO2) is a gas at room temperature and pressure. However, carbon dioxide can be put under pressure to become a "s
Lunna [17]

Answer:

The mass of this 25 mL supercritical CO2 sample has a mass of 11.7g

Explanation:

Step 1: Given data

The supercritical CO2 has a density of 0.469 g/cm³ (or 0.469 g/mL)

The sample hasa volume of 25.0 mL

Step 2: Calculating mass of the sample

The density is the mass per amount of volume

0.469g/cm³ = 0.469g/ml

The mass for a sample of 25.0 mL = 0.469g/mL * 25.0 mL = 11.725g ≈ 11.7g

The mass of this 25 mL supercritical CO2 sample has a mass of 11.7g

5 0
3 years ago
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