Ask question

Ask question

All categories

2 years ago

14

When gases, liquids, or solids are in contact with a moving object, the flow of

1 answer:

Gwar [14]2 years ago

5 0

Answer:

Heat

Friction is what causes heat.

Brainliest always helps.

You might be interested in

A string exerts a force of 20 N on a box at an angle of 38° from the horizontal. What is the horizontal

Gnoma [55]

Answer:

15.76N

Explanation:

horizontal component =Fcos¢ = 20cos38 = 15.76N

4 0

1 year ago

Read 2 more answers

Is there life on other planets ?

RUDIKE [14]

Supposedly there is life on Mars but it’s early to say for sure

7 0

2 years ago

Read 2 more answers

Jason fought in the war in Iraq and witnessed some horrific sights. When he got home from the war, Jason didn't seem to remember

zimovet [89]

Answer:

Jason has repressed the memories

Explanation:

7 0

2 years ago

Read 2 more answers

Effieiency of simple machine is always less than 100% why

zysi [14]

Answer:

efficiency of a machine is less than 100% because some part is energy is utilized to overcome some opposing forces like friction which is wasted as heat ,sound energy etc

Explanation:

8 0

2 years ago

Two 0.50 g spheres are charged equally and placed 2.5 cm apart. When released, they begin to accelerate at 170 m/s^2 .What is th

vitfil [10]

Answer:

$q=7.65*10^{-8}C$

Explanation:

Using Newton's second law, we calculate the magnitude of the electric force between the spheres:

$F=ma\\F=0.5*10^{-3}kg(170\frac{m}{s^2})\\F=0.085N$

The magnitude of the charge in both spheres is the same. So, we calculate the charge, using Coulomb's law:

$F=\frac{kq^2}{d^2}\\q=\sqrt\frac{Fd^2}{k}\\q=\sqrt\frac{(0.085N)(2.5*10^{-2}m)^2}{8.99*10^9\frac{N\cdot m^2}{C^2}}\\q=7.65*10^{-8}C$

8 0

2 years ago