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
agasfer [191]
3 years ago
5

Can anybody helppp me with this

Physics
2 answers:
GREYUIT [131]3 years ago
8 0

Answer:

Iron Rusting

6th grade stuff or 5th i think

Explanation:

KonstantinChe [14]3 years ago
4 0

Answer:

Salt dissolving

Explanation:

Dis solving salt in water doesn't change it's chemical composition

You might be interested in
As a rocket travels upward from earth, air resistance decreases along with the force of gravity. The rocket's mass also decrease
ddd [48]

Answer:

The decrease of these factors increases the acceleration.

Explanation:

Hi, the decrease of these factors increases the acceleration.

Air resistance is a force opposing the acceleration. So if it decreases, the acceleration increases, because the opposite forces decreases.

The same is applied to the force of gravity, since the rocket travels upward; gravity is also an opposite force.

Finally, if the mass decreases, it means that the rocket becomes lighter and the force acting on the smaller mass causes an increase in the acceleration.

6 0
3 years ago
A rubber ball and a lump of clay have equal mass. They are thrown with equal speed against a wall. The ball bounces back with ne
gregori [183]

Answer:

The ball experiences the greater momentum change

Explanation:

The momentum change of each object is given by:

\Delta p = m \Delta v= m (v-u)

where

m is the mass of the object

v is the final velocity

u is the initial velocity

Both objects have same mass m and same initial velocity u. So we have:

- For the ball, the final velocity is

v=-u

Since it bounces back (so, opposite direction --> negative sign) with same speed (so, the magnitude of the final velocity is still u). So the change in momentum is

\Delta p=m(v-u)=m((-u)-u)=-2mu

- For the clay, the final velocity is

v=0

since it sticks to the wall. So, the change in momentum is

\Delta p = m(v-u)=m(0-u)=-mu

So we see that the greater momentum change (in magnitude) is experienced by the ball.

3 0
3 years ago
A box experiences a force of 2 N to the left and 3 N to the right. Which is true of the box's motion?
Nostrana [21]
Below are the choices:

<span> A) The box will slow down.
B) The box's velocity will be 1 m/s.
C) The box's velocity will not change.
 D) The box will experience acceleration 
</span>
The answer is D) The box will experience acceleration 

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
5 0
3 years ago
Read 2 more answers
A current of 9 A flows through an electric device with a resistance of 43 Ω. What must be the applied voltage in this particular
blondinia [14]
The answer is D. Hope this helps you!
6 0
3 years ago
The acceleration of a cart rolling down a ramp depends on __________.
zmey [24]

The angle that the cart rolls with the horizontal. The closer the ramp gets to 90 degrees the faster the cart will accelerate.

8 0
3 years ago
Other questions:
  • The eyes of many older people have lost the ability to accommodate, and so an older person’s near point may be more than 25 cm f
    12·1 answer
  • At its lowest setting a centrifuge rotates with an angular speed of ω1 = 250 rad/s. When it is switched to the next higher setti
    11·1 answer
  • With what average speed must you drive your car if your average speed for the entire 23 km is to be 25 km/h?
    10·1 answer
  • Marlin Davies buys a truck for $28,000. In three years, the car depreciates 48% in value. How much is the car worth in three yea
    9·1 answer
  • A long wire carrying I=1.1A of constant current oriented North-to-South (and the current is running northwards) is placed horizo
    12·1 answer
  • A metal rod A and a metal sphere B, on insulating stands, touch each other. They are originally neutral. A positively charged ro
    10·1 answer
  • Which statement is true for the hang time of a projectile?
    6·1 answer
  • A U-tube with a cross-sectional area of 1.00 cm2 is open to the atmosphere at both ends. Water is poured into the tube until the
    6·1 answer
  • What is the y component of a vector defined as 12.2m at 81.5°?
    12·1 answer
  • For nitrogen to be a liquid, its temperature must be within 12.78 °f of –333.22 °f. the equation |x 333.22 | = 12.78 can be used
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!