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
Mashutka [201]
3 years ago
12

A strip of copper metal is riveted to a strip of aluminum. the two metals are then heated. the coefficient of linear expansion o

f aluminum is greater than that of copper. what happens?
Physics
1 answer:
olganol [36]3 years ago
4 0
We can base this on the equation of thermal expansion.

ΔL = L₀αΔT
where
ΔL is the expansion of length upon heating
L₀ is the initial length
α is the coefficient of linear expansion
ΔT is the temperature difference

So, if α for Aluminum is greater than α for Copper, then after heating, aluminum would be longer than copper.
You might be interested in
Help me with this review question please.
QveST [7]

Answer:

K E=( mv²)/2

=(60×3.5²)/2

=367.5J

6 0
3 years ago
White light is an _____ mixture of all the colors.
Luba_88 [7]

Answer:

White light is a combination of all colors in the color spectrum.

Explanation:

It has all the colors of the rainbow. Combining primary colors of light like red, blue, and green creates secondary colors: yellow, cyan, and magenta

6 0
2 years ago
Which of the following is the same in all frames of reference?
Ksju [112]
The correct option is B.
The length of an object, the mass of an object and the rate of time passage for an object can change depending on the situation which the object is subject to. For instance in space, the mass and the velocity of an object usually change. But, the value of the speed of light in the space is the same for all observers regardless of the motion of an object, that is, the speed of light is a constant.<span />
4 0
3 years ago
You drop a rock off a bridge. The rock's height, h (in feet above the water), after t seconds is modeled by h = – 16 t2 + 541. W
marin [14]
<span>h ( t) = h(1 sec) = -16t^2 + 541

so h (2 sec) = -16*(2)^2 + 541 = -64 + 541 = <span>477 ft

Therefore, </span></span>the height of the rock after 2 seconds is 477 feet.

I hope my answer has come to your help. Thank you for posting your question here in Brainly.
5 0
3 years ago
Which part of an atom has most of its mass? A. electrons B. neutrons C. nucleus D. protons
vredina [299]

<em>The </em><em>nucleus</em><em> has most of the atomic mass in an atom. The </em><em>nucleus</em><em> is made up of protons and neutrons.</em>

<em />

6 0
3 years ago
Read 2 more answers
Other questions:
  • The potential difference across a variable resistor is 11V and the current flowing through it is 0.4A.
    12·2 answers
  • Suppose you're on a hot air balloon ride, carrying a buzzer that emits a sound of frequency f. If you accidentally drop the buzz
    15·1 answer
  • (a) It is difficult to extinguish a fire on a crude oil tanker, because each liter of crude oil releases 2.80×107J of energy whe
    10·2 answers
  • FILL IN THE BLANKS here on earth, the pull of gravity on a mass of 1 kg is ......... newtons​
    15·1 answer
  • Air contained in a rigid, insulated tank fitted with a paddle wheel, initially at 300 K, 2 bar, and a volume of 2 m3, is stirred
    14·1 answer
  • The power of a wave comes from the wave's ..
    6·1 answer
  • You want to make a photo album for your friend. In three to five sentences, describe at least one advantage and one disadvantage
    6·2 answers
  • Explain how climbing a mountain is similar to hiking from the equator to one of the poles
    5·2 answers
  • Match the words in the left-hand column to the appropriate blank in the sentences in the right-hand column. Use each word only o
    6·1 answer
  • a physics student throws a stone horizontally off a cliff. one second later, he throws a second identical stone in exactly the s
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!