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
kozerog [31]
3 years ago
11

Why does heat cause a substance to expand?

Physics
1 answer:
natita [175]3 years ago
5 0
Middle school? lol but, the third one.
You might be interested in
Select all the correct answers.
myrzilka [38]

<em>Anything</em> that's dropped through air is somewhat affected by air resistance.  But, out of that list, the leaf and the balloon are the items that will be affected by air resistance enough so that you can plainly see it.

If you spend some time thinking about it, you can kind of understand why airplane wings and boat propellers are shaped more like leafs and balloons than like bricks and rocks.

3 0
3 years ago
Two forces act on a 6.00-kg object. One of the forces is 10.0 N. If the object accelerates at 2.00 m/s2
liubo4ka [24]

Given :

Two forces act on a 6.00-kg object. One of the forces is 10.0 N.

Acceleration of object 2 m/s².

To Find :

The greatest possible magnitude of the other force.\

Solution :

Let, other force is f.

So, net force, F = 10 + f.

Now, acceleration is given by :

a=\dfrac{F}{mass}\\\\a= \dfrac{10+f}{6}\\\\\dfrac{10+f}{6}=2\\\\f = 12 - 10\\\\f = 2 \ N

Therefore, the greatest possible magnitude of the other force is 2 N.

Hence, this is the required solution.

7 0
3 years ago
a car moving at 11 m/s crashes into an obstacle and stops in 0.26s. compute the Force that a seatbelt exerts on a 21-kg child to
Natalka [10]

Answer:

890 N

Explanation:

Acceleration is change in velocity over change in time.

a = Δv / Δt

a = (11 m/s − 0 m/s) / 0.26 s

a = 42.3 m/s²

Force is mass times acceleration.

F = ma

F = (21 kg) (42.3 m/s²)

F ≈ 890 N

4 0
4 years ago
Which situations contain unbalanced forces? Check all that apply.
coldgirl [10]

A book falls to the floor.

A car skids to a stop.

A foam ball launches from a spring (Are the right answer, just did this one 4:34 pm Jan/21/19)

8 0
3 years ago
Read 2 more answers
Which organism would most likely have new gene combinations?
ella [17]

Answer:

a hamster resulting from sexual reproduction

4 0
3 years ago
Other questions:
  • A sheet of aluminum with a rectangular shape is attached to a vertical support by a set of hinges. Assume the sheet is uniform a
    15·1 answer
  • If you put two electrons next to each other, would they attract or repel each other? Explain your answer.
    11·2 answers
  • Why does the uv from the sun hurt our eyes. Plz help
    11·1 answer
  • A 75-turn coil with a diameter of 6.00 cm is placed in a constant, uniform magnetic field of 1.00 T directed perpendicular to th
    12·1 answer
  • What force holds the lattice structure in place in a crystal?
    14·2 answers
  • What would be the physical sign that a bone CANNOT continue longitudinal growth? What would be the physical sign that a bone CAN
    10·2 answers
  • to measure the static friction coefficient between a block and a vertical wall, a spring is attached to the block, is pushed on
    8·1 answer
  • Hi!!I need sum help with this bc my teacher told me it had to be more specific!
    12·1 answer
  • Which is brighter in our sky, a star with apparent magnitude 2 or a star with apparent magnitude 7?
    12·1 answer
  • What is the average value expected for the independent-measures t statistic if the null hypothesis is true?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!