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
kondor19780726 [428]
3 years ago
7

A science question tht involves a chart help plz

Physics
1 answer:
Mandarinka [93]3 years ago
3 0
To find the answer just divide the mass by the volume!
54/20= 2.7 g/cm cubed
So the mystery material is aluminum!
You might be interested in
A 65 N boy sits on a sled weighing 52 N on a horizontal surface. The coefficient of friction between the sled and the snow is 0.
pogonyaev

Answer:

1.40 N

Explanation:

The magnitude of the frictional force is given by:

F=\mu N

where

\mu is the coefficient of friction

N is the magnitude of the normal reaction

The coefficient of friction for this problem is \mu=0.012. The magnitude of the normal reaction is equal to the combined weight of the boy and the sled, because the surface is horizontal, so

N=65 N+52 N=117 N

Therefore, the frictional force is

F=\mu N=(0.012)(117 N)=1.40 N

3 0
3 years ago
Any one watch SerieS here
Illusion [34]

Answer:

nope

Explanation:

never even heard of it

8 0
3 years ago
Read 2 more answers
The microwave oven was invented in 1945 when some experiments with radar equipment failed and melted some nearby chocolate inste
nignag [31]

Answer: Creative Thinking.

Explanation: Creative thinking this is a special ability possessed by individuals to see things differently or I’m a different dimension, and find new ways of solving problems. The fact it’s Creative thinking skills doesnt mean it’s for only 'creative types' like musicians. Everyone can also be a beneficiary of creative thinking from time to time. Just like in the case of the scientist above who saw an invention from his failed experiment.

8 0
3 years ago
A point charge A of charge +4micro coloumb and another B of -1 micro coloumb are placed at a distance in air 1m apart then the d
andrew11 [14]

Answer:

Explanation:

Given that,

A point charge is placed between two charges

Q1 = 4 μC

Q2 = -1 μC

Distance between the two charges is 1m

We want to find the point when the electric field will be zero.

Electric field can be calculated using

E = kQ/r²

Let the point charge be at a distance x from the first charge Q1, then, it will be at 1 -x from the second charge.

Then, the magnitude of the electric at point x is zero.

E = kQ1 / r² + kQ2 / r²

0 = kQ1 / x²  - kQ2 / (1-x)²

kQ1 / x² = kQ2 / (1-x)²

Divide through by k

Q1 / x² = Q2 / (1-x)²

4μ / x² = 1μ / (1 - x)²

Divide through by μ

4 / x² = 1 / (1-x)²

Cross multiply

4(1-x)² = x²

4(1-2x+x²) = x²

4 - 8x + 4x² = x²

4x² - 8x + 4 - x² = 0

3x² - 8x + 4 = 0

Check attachment for solution of quadratic equation

We found that,

x = 2m or x = ⅔m

So, the electric field will be zero if placed ⅔m from point charge A, OR ⅓m from point charge B.

5 0
3 years ago
Electricity problem (coulomb's law)
ICE Princess25 [194]
Coulomb's Law: The interaction between charged objects is a non-contact force that acts over some distance of separation.
7 0
4 years ago
Other questions:
  • If a photon has a frequency of 5.20 × 10ÜÊ hertz, what is the energy of the photon?
    11·1 answer
  • What is physiotherapy​
    5·2 answers
  • The principles of magnetism apply everywhere on earth. What does this tell us about God and His character?
    9·1 answer
  • An overhead door is guided by wheels at a and b that roll in horizontal and vertical tracks. when θ = 40°, the velocity of wheel
    15·1 answer
  • When light behaves like a particle, it is called a ???​
    9·2 answers
  • One mol of a perfect, monatomic gas expands reversibly and isothermally at 300 K from a pressure of 10 atm to a pressure of 2 at
    5·1 answer
  • A 50-g chunk of a common metal at 80°C is placed into a calorimeter with 50 g of water at 50°C. At thermal equilibrium, which ef
    5·1 answer
  • Enlarged brain ventricles are presumed to signify __________. A. an excess of dopamine activity B. frontal lobe abnormalities C.
    12·2 answers
  • I REALLY NEED HELP THIS IS DUE IN AN HOUR
    14·1 answer
  • A motorcycle passes over the top of a hill that has a radius of curvature of 100 m. The mass of the motorcycle plus rider is 300
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!