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
AlladinOne [14]
2 years ago
8

A rock hits the ground with a speed of 13 m s−1

Physics
1 answer:
polet [3.4K]2 years ago
4 0

Answer:

3.55kg

Explanation:

K. E = ½mv²

Where m = mass,  v = velocity

K. E = 300J

v = 13m/s

Therefore,

K. E = ½mv²

300 = ½ × m × 13²

Multiply both sides by 2

600 = m × 169

Divide both sides by 169

m = 600 ÷ 169

mass = 3.55kg

I hope this was helpful, please mark as brainliest

You might be interested in
Unit 12 Exam
lapo4ka [179]

Answer:

You increase the acceleration of the car.

6 0
2 years ago
A battery has a terminal voltage of 12.0 V when no current flows. Its internal resistance is 2.0 Ω. If a 4.6 Ω resistor is conne
rosijanka [135]

Answer:

Check attachment for solution

Explanation:

Given that 12V battery

5 0
3 years ago
Read 2 more answers
The specific heat of Aluminum is 0.9 J/g K. The specific heat of Copper is 0.39 J/g K. If samples of equal mass of both Aluminum
AleksandrR [38]
<span> <span><span> <span> Answer:The Aluminum loses a little more than twice the heat of the Copper.Explanation:<span>
Since specific heat is part of the equation. A smaller specific heat will create a smaller heat gain or loss. </span>
<span>Hope this helped!!!!</span></span> </span> </span></span>
6 0
3 years ago
Read 2 more answers
When a postitive charge is placed in a electric field the field will
Dafna11 [192]
<span> the </span>electric field<span> direction about a </span>positive<span> source </span>charge<span> is always directed away from the </span>positive<span> source. And the </span>electric field <span>direction about a negative source </span>charge<span> is always directed toward the negative source.</span>
5 0
3 years ago
[TRUE/FALSE] If an object is moving at constant velocity it must be in equilibrium.
DENIUS [597]

Answer:

yes

Explanation:

objects with constant velocity also have zero net external force. this means the forces on the object are balanced. this mean they are in equilibrium

4 0
3 years ago
Other questions:
  • What are the folds called inside the mitochondria?
    12·2 answers
  • How do magnetic forces repel or attract?<br> Plz make it as simple as possible
    9·1 answer
  • An elevator accelerates uniformly from rest to a speed of 2.5 m/s in 12s. What is the distance the elevator travels during this
    12·1 answer
  • If you mix water that is 80° with the same amount of water that is 20° what will the resulting temperature be
    12·1 answer
  • Why do some nucleus emit electrons?
    9·1 answer
  • Next to hydrogen and oxygen, what are the two most abundant elements in the ocean water?
    13·2 answers
  • A spherical shell of mass M and radius R is completely filled with a frictionless fluid, also of mass M. It is released from res
    8·1 answer
  • A painter on a ladder, painting the ceiling of a room comments. “It is hotter up here by the ceiling than it is down on the floo
    7·1 answer
  • The drawing shows a top view of a door that is free to rotate about an axis of rotation that is perpendicular to the screen. Fin
    8·1 answer
  • How do you build a sticky piston door​
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!