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
Svetradugi [14.3K]
3 years ago
10

A chemist notices some silvery liquid on the floor in her lab. She wonders if someone accidentally broke a mercury thermometer,

but did not thoroughly clean up the mess. She decides to find out of the silver stuff is really mercury. From her tests with the substance, she finds out that the melting point for the liquid is 275 K. A reference book says that the melting point for mercury is -38.87°C. Is this substance mercury? Explain your answer and show all relevant calculations.
Physics
1 answer:
Setler79 [48]3 years ago
3 0
The relationship between degrees Kelvin and degrees Celsius is:

K = C + 273.15

So, -38.87 + 273.15 = 234.28

So, the substance is not mercury because the melting points in Kelvin are unequal.
You might be interested in
A car on a straight road starts from rest and accelerates at 1.0 meter per second? for 10. seconds.
Marysya12 [62]

Answer:

11 or 10 meters a second

Explanation:

pretty sure thats my explanation "pretty sure" like my confidence? mark me brainliest bad at spelling lol

7 0
2 years ago
Please help on this one?
navik [9.2K]

the upside down image means an inverted image and for an inverted image, magnification is negative

so the answer is -m

4 0
4 years ago
A rocket initially at rest accelerates at a rate of 99.0 meters/second2. Calculate the distance covered by the rocket if it atta
Jobisdone [24]

Answer: The correct answer is option b.

Explanation: We are given that the rocket is at rest initially final velocity is 445m/s.

The acceleration of the rocket is 99.0m/s^2

To calculate the distance of rocket, we use third equation of motion, which is:

v^2-u^2=2as

where, v = final velocity = 445m/s

u = initial velocity = 0m/s

a = acceleration = 99m/s^2

s = distance = ? m

Putting values in above equation, we get:

(445)^2-(0)^2=2(99)s\\\\s=1\times 10^3meters

3 0
3 years ago
A set of charged plates 0.00262 m apart has an electric field of 155 N/C between them. What is the potential difference between
mylen [45]

Answer: The potential difference between the plates = 0.4061V

Explanation:

Given that the

Electric field strength E = 155 N/C

Distance d = 0.00262 m

From the definition of electric field strength, is the ratio of potential difference V to the distance between the plates. That is

E = V/d

Substitute E and d into the above formula

155 = V/0.00262

Cross multiply

V = 155 × 0.00262

V = 0.4061 V

The potential difference between the plates is 0.4061 V

5 0
3 years ago
3. Which types of light are not absorbed by genetic material?
Radda [10]

Given what we know, we can confirm that genetic material is not known to absorb light originating from an infrared or microwave radio source.

<h3>What light does genetic material absorb?</h3>
  • Genetic material is known to absorb UV light.
  • This represents ultraviolet light.
  • UV light is electromagnetic radiation, and the primary source of UV light that we are exposed to is the sun.

Therefore, given that the only form of light listed that genetic material is known to absorb is that of Ultraviolet or UV light, we can confirm that the answer to the question proposed is infrared and microwave radio light.

To learn more about UV light visit:

brainly.com/question/13695751?referrer=searchResults

3 0
3 years ago
Other questions:
  • In a hydroelectric dam, water falls 30.0m and then spins a turbine to generate electricity.
    14·1 answer
  • To calculate the heat needed to melt a block of ice at its melting point what do you need to know
    8·1 answer
  • Factors that influence Wellness
    8·1 answer
  • Velocity has two pieces of information.what are they
    13·1 answer
  • A cart is given an initial velocity of 2 m/s and experiences a constant acceleration of 2 m/s2. What is the magnitude of the car
    5·1 answer
  • What element is created when hydrogen atoms fuse together in the sun’s core?
    6·1 answer
  • An object attached to a horizontal spring is oscillating back and forth along a frictionless surface. The maximum speed of the o
    15·1 answer
  • Joe noted that the temperature in his aquarium dropped overnight. He concluded that thermal energy moved from the aquarium to th
    9·2 answers
  • Galileo Galilei was the first scientist to perform experiments in order to test his ideas. He was also the first astronomer to s
    14·1 answer
  • A bag of groceries is on the back seat of your car as you stop for a stop light. The bag does not slide. Apply your analysis to
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!