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
fiasKO [112]
3 years ago
9

A 1200-kg car moving at 15.6 m/s suddenly collides with a stationary car of mass 1500 kg. if the two vehicles lock together, wha

t is their combined velocity immediately after the collision?
Physics
1 answer:
g100num [7]3 years ago
5 0
Use conservation of momentum ;

m1u1 + m2u2 = m1v1 + m2v2

1200×15.6 + 0 = 2700v

v = 18720/2700

v = 6.933 or ~ 7 m/s
You might be interested in
How long did Skylab orbit the earth?
maria [59]

Answer:

for abt 36 seconds

Explanation: cuz thats how long it was

4 0
3 years ago
An Apple falls from a tree and one-half second later hits the ground
docker41 [41]
There isnt enough information to answer the question, the missing variable is "distance from said falling spot and ground"
8 0
3 years ago
PLS ANSWER FAST TIMED TEST WILL GIVE BRAINLY!!!!!!!!!
lutik1710 [3]
The answer would be true
7 0
3 years ago
Read 2 more answers
Relativistic velocity is of the order of _____ of velocity of light A- 1/15th of the velocity of light B-1/20th of the velocity
ratelena [41]

Answer:

Relativistic velocity is of the order of 1/10th of the velocity of light

Explanation:

We define relativistic speed (or velocity) as a speed that is a significant fraction of the speed of light: c = 3*10^8 m/s

Such that for these speeds, the special relativity theory starts to apply (the relativity effects starts to apply).

Usually, we define relativistic speeds as those that are of the order (or larger) of c/10, which is one-tenth of the speed of light.

Then the correct option is C:

Relativistic velocity is of the order of 1/10th of the velocity of light

4 0
3 years ago
How many laws does newton have?
liq [111]
Newton has 3 Laws specifically The Three Laws of Motion
3 0
3 years ago
Other questions:
  • A balloon used in surgical procedures is cylindrical in shape. as it expands outward, assume that the length remains a constant
    9·1 answer
  • Which type of energy conversion takes place when a lightbulb is turned on?
    8·1 answer
  • Given a particle that has the velocity v(t) = 3 cos(mt) = 3 cos (0.5t) meters, a. Find the acceleration at 3 seconds. b. Find th
    9·1 answer
  • An object is dropped from rest and falls through height h. It travels 0.5h in the last 1 second of fall. Find the total time &am
    10·1 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
  • One astronomer has observed an apparent lengthening of the electromagnetic waves given off by a star. Which of these conclusions
    9·2 answers
  • 1
    7·1 answer
  • Which road would exert the LEAST amount of friction on a car?
    14·1 answer
  • A dog whistle is designed to produce a sound with a frequency beyond that which can be heard by humans (between 20 000 Hz and 27
    12·1 answer
  • Seamus made an electromagnet from an iron nail, a piece of copper wire with three coils spread out across the nail, and a AAA-
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!