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
PolarNik [594]
1 year ago
14

Which of the following is the combination that is used in the formation of achromatic lenses?

Physics
2 answers:
andrezito [222]1 year ago
8 0
Convex one and 1 plane mirror is your answer
Lina20 [59]1 year ago
5 0

Answer:

convex and 1 plane mirror

You might be interested in
Two types of positions are
bearhunter [10]

Answer:

Permanent or temporary just took the test

Explanation:

8 0
2 years ago
How many calories are required to raise the temperature of 105 g of water from 30.0°c to 70.0°c?
DaniilM [7]
<h2>Answer: 4200 calories</h2>

Let's start by explaining that 1 Calorie (1 cal) is defined as a unit of thermal energy that is equivalent to the amount of heat (Q) needed to raise the temperature of 1 gram 1g of water by 1 degree Celsius 1\°C.

The formula to calculate it is:

Q=m. c. \Delta T   (1)

Where:

m  is the mass

c  is the specific heat of the element. In the case of water c=1cal/g

\Delta T  is the variation in temperature, which in this case is  \Delta T=70\°C-30\°C=40\°C  

Rewriting equation (1) with the known values:

Q=(105g)(1 cal/g)(40\°C)  

Q=4200 cal  

4 0
2 years ago
A proton moving along the x axis has an initial velocity of 4.0 × 106 m/s and a constant acceleration of 6.0 × 1012 m/s2. What i
egoroff_w [7]

Answer: The velocity of the proton after it has traveled a distance of 80 cm is 5.1 × 10^6 m/s

Explanation: Please see the attachment below

5 0
2 years ago
Read 2 more answers
Two masses, each having a value of M, are vibrating vertically on a spring with a Hooke's law constant, k. At the lowest point o
ELEN [110]
What are you asking for they
7 0
1 year ago
Explain how electric current is able to flow.
Evgen [1.6K]

Answer:through wires or cables

Explanation:

7 0
2 years ago
Other questions:
  • An automatic coffee maker uses a resistive heating element to boil the 2.4 kg of water that was poured into it at 21 °C. The cur
    15·1 answer
  • 1,- Encuentra el vector resultante C por el método del Paralelogramo.
    12·1 answer
  • Why does sound travel slower at a cold temperature?
    10·2 answers
  • When stable air is forced to rise, any clouds that are produced are generally thin and flat lying.
    9·1 answer
  • The maximum water vapor that air can hold at 30°C is about 30 grams/cubic meter. If the humidity of the air is currently 6 grams
    6·1 answer
  • Two crates, A and B, sit at rest side by side on a frictionless horizontal surface. The crates have masses mA and mB. A horizont
    15·1 answer
  • If a negatively charged particle enters a region of uniform magnetic field which is perpendicular to the particle's velocity, wi
    11·1 answer
  • A 15.0 kilogram cart initially traveling at 2.0 meters per second east accelerates uniformly at 0.75 meter per second squared ea
    6·1 answer
  • Use your answers from questions 1–3 as the basis for the first section of your lab report. This section provides your reader wit
    5·1 answer
  • Would more water be displaced be when the iron was on the boat or when the iron was dumped overboard and now sits in the bottom
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!