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
Ray Of Light [21]
4 years ago
7

A Roller Derby Exhibition recently came to town. They packed the gym for two

Physics
1 answer:
arlik [135]4 years ago
7 0

Answer:

14.36m/s

Explanation:

From the law of conservation of linear momentum

m1u1 + m2u2 = v(m1 + m2)

68×17 + 76×12= v(68+76)

1156+912 = 144v

2068 = 144v

v = 2068/144

=14.36 m/s

You might be interested in
5. What evidence best supports the claim that a
Levart [38]

Answer: B: It can be made out of wire

Explanation: i just had this question and put this answer and gotten it right:)

6 0
2 years ago
Who was executed for believing that Earth revolves around the sun?
Tomtit [17]
According to research, none of these men were executed for believing that Earth revolves around the sun. Nicolaus Copernicus was the first to believe in the heliocentric view of the current solar system, but he was not killed for that view, but he died of natural means. Galileo Galilei was punished because of the heliocentric view but was only put under house arrest, and not killed. Giordano Bruno was indeed burned at stake, but it was not for his view on heliocentrism.
4 0
4 years ago
The image on the left shows the charges on a balloon after it’s been rubbed with a wool cloth. The image on the right is a piece
Leto [7]

Answer:

The tissue paper will stick to the balloon because it is positively charged.

Explanation:

6 0
3 years ago
I have a slab of some insulator with an unknown permittivity . To determine experimentally I go to the lab and insert the slab i
jeyben [28]

Answer:

The answer is ε = 1.5*εo

Explanation:

we have to:

I = R*C

also:

C´ = (A*ε)/α

C = (A*εo)/α

So:

I´ = ε*I

Given by the exercise:

I´/I = 1.5 (50% of increase)

Thus:

ε/εo = 1.5

Clearing ε:

ε = 1.5*εo

8 0
4 years ago
In addition, many predictions based on the idea have led to additional observations that support it. Which best describes this i
Law Incorporation [45]
The answer is: Theory
6 0
2 years ago
Other questions:
  • A 3.00-kg box is sliding along a frictionless horizontal surface with a speed of 1.8 m/s when it encounters a spring. (a) Determ
    9·1 answer
  • Ronald wants to see if a new shower cleaner works better in removing soap than his old cleaner.  He uses the new cleaner on one
    8·1 answer
  • In an electromagnetic wave in free space, the ratio of the magnitudes of electric and magnetic field vectors E and B is equal:__
    11·1 answer
  • A 10.5 cm long solenoid contains 891 turns and carries a current of 5.95 A . What is the strength of the magnetic field at the c
    8·1 answer
  • 26500 in scientific notation
    13·2 answers
  • Based on the diagram of a ball rolling down hill, what statement is true? A) The ball in box C has less kinetic energy than the
    6·1 answer
  • A biophysics experiment uses a very sensitive magnetic field probe to determine the current associated with a nerve impulse trav
    15·1 answer
  • A motorboat, initially traveling at 5 m/s, accelerates (speeds up) at 10 m/s^2 over a distance of 500 m. What is the speed of th
    8·1 answer
  • Match each measurement tool with what it measures.
    14·1 answer
  • What will be the change in velocity of a 850kg car if a force of 50,000 N
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!