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
Nana76 [90]
3 years ago
9

Ball 1 is thrown to the ground with an initial downward speed; ball 2 is dropped to the ground from rest.

Physics
1 answer:
MariettaO [177]3 years ago
8 0

Answer:

equal to the change in gravitational potential energy of ball 2.

Explanation:

Change in gravitational potential energy is equal to work done by gravitational force on the body .

work done = force x displacement

force = mg

displacement = height ( h )

change in gravitational energy = mgh

Since mass is same in both the cases , g is also the same in both the cases and h too is same in both the cases . change in gravitational energy will be same in both the cases. Initial velocity will have no affect on the result at all.

You might be interested in
HELP FAST!!!!!!!
Alex17521 [72]

<u>Answer</u>

A. Metals A and metals B



<u>Explanation</u>

Heat transfer takes place whenever there is temperature difference. When two bodies of different temperatures are brought together, heat energy will move from one body to the other until equilibrium temperature is reached.

In our case, heat transfer will take place in all four metals.

Metal A will transfer heat to the water since it's temperature is higher than that of water.

Metal B will also transfer heat to the water since it's temperature is higher than that of water.

Metal C will get heat from the water since it's colder than the water.

Metal D will also get heat from the water since it is colder than water.

7 0
3 years ago
Read 2 more answers
What is emotional strength?​
Ugo [173]

Answer:

Emotional strength is a person's ability to deal with challenges (any kind) and how they can bounce back on that certain situation.

I hope this helps you.

4 0
3 years ago
A dragster race car can accelerate from rest to incredible speeds. In one case a dragster is able to finish the 305 m run in 3.6
Dafna1 [17]

Answer:

45.89m/s²

Explanation:

Given

Distance S = 305m

Time t = 3.64s

To get the acceleration during this run, we will apply the equation of motion:

S = ut+1/2at²

Substitute the given parameters into the formula and calculate the value of a

305 = 0+1/2 a(3.64)²

304 = 1/2(13.2496)a

304 = 6.6248a

a = 304/6.6248

a = 45.89m/s²

Hence the average acceleration during this run is 45.89m/s²

4 0
3 years ago
2 Ten identical lengths of wire are laid closely side-by-
Mice21 [21]

Answer:

(a) 0.71 mm

(b) 0.158 cubic cm

Explanation:

The width of one wire is the diameter of the wire.

(a) Let the diameter of each wire is d.

So, 10 d = 14.2 mm

d = 1.42 mm

radius of each wire, r = d/2 = 1.42/2 = 0.71 mm

(b) Length, L = 10 cm

The volume of the single wire is given by

V =\pi\times r^2\times h \\\\V =3.14\times 0.071^2\times 10\\\\V =0.158 cm^3

7 0
2 years ago
Zamir and Talia raced through a maze. Zamir walked 2 m north, 2 m east, 4 m south, 2 m east, 4 m north, 2 m east, 3 m south, 4 m
Alja [10]

Answer : Zamir's displacement and Talia's displacement is equal.

Explanation :

Displacement is explained to be the changing position of an object.

Zamir covers total distance 27 m and Talia covers total distance 19 m but  Zamir's initial and final position and Talia's initial and final position is same.

So, we can say that Zamir's displacement and Talia's displacement is equal.

6 0
3 years ago
Read 2 more answers
Other questions:
  • Two ways to make peace with your body are to create a positive mental outlook and to
    12·1 answer
  • A ball rolled along a horizontal surface maintains a constant speed because
    9·2 answers
  • Sound wave A delivers 2J of energy in 2s. Sound wave length B delivers 10J of energy in 5s. Sound wave C delivers 2mJ of energy
    6·1 answer
  • A 13,500 kg railroad freight car travels on a level track at a speed of 4.5 m/s. It collided and coupled with a 25,000 kg second
    8·1 answer
  • What does a notational analyst do
    11·1 answer
  • The term blank comes from an old English word, springen, meaning "to jump"
    6·1 answer
  • The engine speed increases when the driver depresses the accelerator pedal and releases the clutch pedal, but the vehicle does n
    9·1 answer
  • Plzz answer this question correctly
    14·1 answer
  • Which equation could be rearranged to calculate the frequency of a wave?
    11·2 answers
  • A car speeds up from 3 m/s to 10 m/s in 8 s. How far does the car travel while doing this? 2. A
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!