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
erastovalidia [21]
3 years ago
13

I need help with the 1st and the 3rd one plzzzzzzzzzzzzz

Physics
1 answer:
Viktor [21]3 years ago
7 0

Answer for the first one is 2. The answer for the 3rd one is 8

You might be interested in
How does this pendulum demonstrate the law of conservation of energy?
muminat

Answer:

I'm sorry but I dont really know this answer

4 0
3 years ago
Two atoms that are isotopes will have a different number of what​
BigorU [14]

Answer:

different number of mass numbers.

Explanation:

isotopes are atoms of the same element having the same atomic number but different mass numbers due to different number of neutrons.

7 0
3 years ago
which fire extinguisher is most appropriate to put out a fire that involves a stack of burning newspapers
evablogger [386]

Monoammonium phosphate effectively smothers the fire, while sodium bicarbonate induces a chemical reaction which extinguishes the fire. Fire extinguishers with a Class C rating are suitable for fires in “live” electrical equipment.

6 0
3 years ago
Read 2 more answers
A 946.4 kg ( 2083 lb ) car is moving at 14.8 m / s ( 33.0 mph ) . Calculate the magnitude of its momentum.
IgorLugansk [536]

Answer:

14009. 72 kgms^-1

Explanation:

Momentum is the product of an objects mass and velocity

7 0
3 years ago
A measurement must include both a number and a(an)
IrinaK [193]
<span>A measurement must include both a number and an unit of measurement. </span>
7 0
3 years ago
Other questions:
  • How does an atom of bromine-79 become a bromide ion with a -1 charge?
    13·1 answer
  • Radioactive carbon, or C-14, is used to date fossil remains. When C-14 decays, as seen in the nuclear equation, it produces what
    13·2 answers
  • Which Richter magnitude range can be recorded by instruments but isn't felt? A. less than 2.9 B. 3.0 – 4.9 C. 5.0 – 5.9 D. 6.0 a
    14·2 answers
  • A group of students conduct an experiment with a block of wood sliding down an incline. They find that the final energy of the b
    5·1 answer
  • Why do we break up angled forces into components? How does that help us solve force problems?
    14·1 answer
  • Can someone help answers these questions? <br> (I attached the pictures)
    12·1 answer
  • A 15kg object strikes the ground with 2000J of kinetic energy after freely falling from rest. How far above the ground was the o
    8·1 answer
  • Question 22
    13·1 answer
  • Between 1992 and today, astronomers using large telescopes have discovered many icy pieces that orbit in the same region as the
    7·1 answer
  • A large truck is moving at 22.0 m/s. if its momentum is 125,000 kg • meters per second, what is the truck's mass? 176 kg 2750 kg
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!