1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mafiozo [28]
4 years ago
14

H2O Cl2 NH3 What do all of these compounds have in common? A) They are all ionic. B) They are all covalent. C) They all are posi

tively charged. D) They all are negatively charged.
Physics
1 answer:
harkovskaia [24]4 years ago
5 0
B. They are all covalent
You might be interested in
Assuming that voltage remains constant, what happens to the current in a filament if it is replaced by a longer wire?
Elena L [17]

Answer:

Choice B: The current decreases.

Explanation:

The resistance of a conductor is proportional to its length when radius and resistivity stays the same. The resistance of the longer filament will be greater than the resistance of the initial one.

For Ohmic conductors,

\displaystyle I = \frac{V}{R},

where

  • I is the current through the conductor,
  • V is the voltage across the conductor, and
  • R is the resistance of the conductor.

Voltage here stays the same. Increasing the resistance R of the conductor will reduce the current.

The filament might heat up over time. The filament might not be an ohmic conductor. Still, a similar trend shall exist. Resistance will be greater in the longer filament, and current will decrease.

4 0
4 years ago
Read 2 more answers
Define linear expansivity
lidiya [134]

Linear expansivity is a type of thermal expansion. It is described by a fraction that represents the fractional increase in length of a thin beam of a material exposed to a temperature increase of one degree Celsius. ... Linear expansivity is used in many real world applications.

8 0
3 years ago
Read 2 more answers
The Chartered Institute of Management Accountants defines activity-based cost management as follows: "An approach to the costing
egoroff_w [7]

Answer:

ABC is the activity based accounting. It is the costing done for each separate activity which maybe unit level, batch level, product sustaining or facility sustaining.

Explanation:

The basic difference between ABC and traditional costing systems can be explained with the help of the following diagram.

Traditional Costing System

Overhead Cost Accounts (For each individual expense e.g. tax)

First Stage Allocation

  1. Cost Centers ( normally Departments)
  2. Cost Centers ( normally Departments)

N.  Cost Centers ( normally Departments)

Second Stage Allocation ( Direct Labor Or Machine Hours)

Cost Objects ( products, services and customers)

ACTIVITY BASED COSTING SYSTEMS

Overhead Cost Accounts (For each individual expense e.g. tax)

First Stage Allocation ( resource cost drivers)

  1. Activity Cost Centers
  2. Activity Cost Centers

N. Activity  Cost Centers

Second Stage Allocation ( activity cost drivers)

Cost Objects ( products, services and customers) (Direct Costs)

Four steps are involved in the design of ABC systems.

  1. identifying the major activities that take place in an organization
  2. assigning cost to cost pools / cost centers for each activity
  3. determining the cost for each major activity
  4. assigning the cost of activities to products according to the product's demand for activities.

The first two steps relate to the first stage and final two steps to the second stage of the two - stage allocation process shown above.

5 0
3 years ago
What is the magnetic field strength required to make a proton with a speed of 5.0 x 10^(5) m/s follow a circular path of radius
Nuetrik [128]

Answer:

Magnetic field strength required for this is 0.25 T

Explanation:

As we know that the proton moves in circular path in uniform magnetic field

so the radius of the path of the circle is given as

R = \frac{mv}{qB}

here we know that

q = 1.6 \times 10^{-19}C

m = 1.6 \times 10^{-27} kg

R = 0.0200 m

v = 5 \times 10^5 m/s

now we have

B = \frac{1.6 \times 10^{-27} (5 \times 10^5)}{(1.6 \times 10^{-19})(0.02)}

so we have

B = 0.25 T

8 0
4 years ago
Please help?? PWEASE PWEASE PWEASE
elixir [45]

Answer:

draw the two atomic structures and then focus in on the electrons either gaining or losing and draw them with arrows and dots

Explanation:

3 0
3 years ago
Other questions:
  • . At a frequency ω1, the reactance of a certain capacitor equals that of a certain inductor.
    6·2 answers
  • A 55-liter tank is full and contains 40kg of fuel. Find using Sl units: • Density p. • Specific Weight y • Specific Gravity Answ
    12·1 answer
  • 2. (1 point) Two metal spheres with different radii are each hanging from insulating nylon threads. One of the spheres has a net
    15·1 answer
  • Air that enters the pleural space during inspiration but is unable to exit during expiration creates a condition called a. open
    6·1 answer
  • Permafrost characterizes the biome called
    9·1 answer
  • describe how your data supports the statement the rate of movement of dna fragments is inversely proportional to the log of thei
    11·1 answer
  • AWARDING BRAINLIEST
    11·1 answer
  • Which describes how to calculate density?
    9·1 answer
  • D. Fill in the blanks in the following paragraph to correctly identify the conductive properties of materials. (1 point)
    15·1 answer
  • Help me please i dont understand
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!