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
Maru [420]
4 years ago
11

A 100 g aluminum calorimeter contains 250 g of water. The two substances are in thermal equilibrium at 10°C. Two metallic blocks

are placed in the water. One is a 50 g piece of copper at 66°C. The other sample has a mass of 71 g and is originally at a temperature of 100°C. The entire system stabilizes at a final temperature of 20°C. Determine the specific heat of the unknown second sample.
Physics
1 answer:
Gnesinka [82]4 years ago
4 0
It would be nice if someone can help me
You might be interested in
Two objects, m1 = 0.6 kg and m2 = 4.4 kg undergo a one-dimensional head-on collision
Sidana [21]

a) The velocity after the collision.is 11.456 m/s.

b) The kinetic energy lost due to the collision is 44.564 J.

<h3>What is conservation of momentum principle?</h3>

When two bodies of different masses move together each other and have head on collision, they travel to same or different direction after collision.

The external force is not acting here, so the initial momentum is equal to the final momentum. For inelastic collision, final velocity is the common velocity for both the bodies.

m₁u₁ +m₂u₂ =(m₁ +m₂) v

Given are the two objects, m1 = 0.6 kg and m2 = 4.4 kg undergo a one-dimensional head-on collision. Their initial velocities along the one-dimension path are vi1 = 32.4 m/s [right] and vi2 = 8.6 m/s [left].

(a) Substitute the values, then the final velocity will be

0.6 x32.4 +4.4 x 8.6 = (0.6+4.4)v

v = 11.456 m/s

Thus, the velocity after collision is 11.456 m/s.

(b) Kinetic energy lost due to collision will be the difference between the kinetic energy before and after collision.

= [1/2m₁u₁² +1/2m₂u₂² ] - [1/2(m₁ +m₂) v²]

Substitute the value, we have

= [1/2 x 0.6 x32.4² + 1/2 x4.4 x 8.6²] - [1/2 x(0.6+4.4)11.456²]

= 44.564 J

Thus, the kinetic energy lost due to the collision is 44.564 J.

Learn more about conservation of momentum principle

brainly.com/question/14033058

#SPJ2

4 0
2 years ago
Read 2 more answers
Do you think the universe has a center
Alika [10]

Answer:

I dont think the universe has a center because there is such a vast majority of stars, planets, and galaxys that havent even been discovered that space could be endless. so no i dont think there is a center to the universe.

Explanation:

5 0
4 years ago
3. A force of 90N pushes downward at an angle of 32° to the horizontal on an object resting on the floor. The
Nonamiya [84]

F = m × g

Now when, a force acts on the object at an angle and in downwards, thus formula becomes:

= N = mg + F sin(x)

Here,

  • N = normal force, m = mass , g = acceleration due to gravity, F = outside force, x = the angle formed

See, as we habe to calculate the weight, which is m × g, thus we will recreate thus formula like thus:

= N = w + F sin(x) --------- [Weight = w]

Now, the solutions becomes easy from here, just put the values:

= N = w + F sin(x)

= 200 = w + 90 × sin(32)

= 200 = w + 90 × 0.55

= 200 = w + 49.5

= 200 - 49.5 = w

= 150.5 = w

I have got my answer but in approx, hope you will not mind. ^^"

8 0
3 years ago
A handheld glass rod can be charged by rubbing it with silk or a plastic bag while holding it in your hands. Would you conclude
WITCHER [35]

Answer:

a conductor is an object or type of material that allows the flow of charge (electrical current) in one or more directions.

Explanation:

. Materials made of metal are common electrical conductors.

3 0
3 years ago
For a demonstration, a professor uses a razor blade to cut a thin slit in a piece of aluminum foil. When she shines a laser poin
makvit [3.9K]

Answer: 4.675×10^-6 m

Explanation: this is a question under the pattern gotten from an interference experiment.

The formulae below defines the experiment given

y = Rmλ/d

Where y = distance between the center fringe and any other fringe in the pattern = 8cm = 0.08m

m = position of fringe = 1 ( this is because we have only one central band)

λ = wavelength of light used for experiment = 680nm = 6.8×10^-7m

d = width of slit =?

R = distance between slits and screen = 5.5 cm = 0.055m

By substituting the parameters, we have that

0.08 = 0.055 × 1 × 6.8×10^-7/d

By cross multiplying, we have that

0.08 × d = 0.055 × 1 × 6.8×10^-7

d = 0.055 × 1 × 6.8×10^-7/ 0.08

d = 3.74 × 10^-7/ 0.08

d = 46.75×10^-7

d = 4.675×10^-6 m

5 0
3 years ago
Other questions:
  • how much work did the movers do (horizontally) pushing a 160-kg crate 10.3 m across a rough floor without acceleration, if the e
    6·2 answers
  • What is liquids rising in a thermometer as temperature increases is an example of?
    12·1 answer
  • A cyclist accelerates from rest to 8 m/s in 3 seconds. How far did the cycles travel in 3 seconds?​
    15·2 answers
  • GUESS WHAT??? I'LL MAKE YOU BRAINLIEST SO HURRY UP AND ANSWER THIS!!!!
    11·2 answers
  • I do not know where to start.
    5·1 answer
  • Different ______ of an element have different numbers of electrons
    10·2 answers
  • It appears as though the moon disappears and the sun comes out in the daytime. Based on what you know, explain why this is happe
    11·2 answers
  • Question in the picture - Conservation of Momentum
    12·1 answer
  • In our Solar System, the inner planets are rocky because Choose one: A. warm temperatures in the inner disk caused the inner pla
    5·1 answer
  • An electromagnetic wave is propagating in the positive x direction. At a given moment in time, the magnetic field at the origin
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!