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
Serjik [45]
3 years ago
9

An object has a momentum of 4,000 kg-m/s and a mass of 115 kg. It crashes into another object that has a mass of 100 kg. If the

momentum is conserved, what is the new velocity? Round to the nearest hundredth.
Physics
2 answers:
joja [24]3 years ago
5 0

Answer

19 m/s

Explanation

<u>Finding the velocity of the initial object</u>

Momentum=mass × velocity

P=m×v

4000=115 × v

v=4000/115 =34.78⇒35m/s

<u>Total momentum after the collision</u>

Because the momentum is conserved, the total momentum afterwards =4000kg-m/s

<u>Total mass after collision</u>

Total mass = mass of initial object + mass of second object

Total mass= 115+100= 215kg

<u>Finding new velocity after collision</u>

v=p/m

=4000/215

=18.60

=19m/s

Roman55 [17]3 years ago
5 0

Answer:

its 18.60

Explanation:

got 100% on pf

You might be interested in
Young's Modulus of elasticity is a) Shear stress/Shear strain b) Tensile stress/Shear strain 9. c) Shear stress /Tensile strairn
slava [35]

Answer:

Option C is the correct answer.

Explanation:

Young's modulus is the ratio of tensile stress and tensile strain.

Bulk modulus is the ratio of pressure and volume strain.

Rigidity modulus is the ratio of shear stress and shear strain.

Here we are asked about Young's modulus which is the ratio of tensile stress and tensile strain.

Option C is the correct answer.

3 0
3 years ago
Read 2 more answers
How many significant digits are in 0.3500
const2013 [10]
4 significant figures (the 0’s are considered significant because they follow a non-zero number)
7 0
4 years ago
Balance the following chemical equations
IrinaVladis [17]

Answer:

Enter an equation of a chemical reaction and click 'Balance'. The answer will appear below

Always use the upper case for the first character in the element name and the lower case for the second character.

To enter an electron into a chemical equation use {-} or e

To enter an ion specify charge after the compound in curly brackets: {+3} or {3+} or {3}. Example: Fe{3+} + I{-} =...

Substitute immutable groups in chemical compounds to avoid ambiguity. For instance equation C6H5C2H5 + O2 = C6H5OH + CO2...

Explanation:

4 0
4 years ago
if a firebird travels at a velocity of 0 to 60 mph in 4 seconds traveling east what was the acceleration of the firebird​
noname [10]
22 ft/s^2.

explanation: In this case, the velocity has increased by 60 mph in 4 seconds, so the average increase is 60/4 = 15 mph every second, or 15 mph/s.

Usually, you will want to use the same units of time throughout. In this case, you could multiply by the number of seconds in an hour to find out the change in velocity if it carried on travelling for that length of time. This would give the acceleration in units of mph/h, or mph^2.

If you want the answer in feet/s^2, then take your 15 mph/s answer, multiply by the number of feet in a mile (to get it to feet per hour per second) then divide by the number of seconds in an hour to get it to feet per second per second, or feet/s^2.

You should get 22 ft/s^2.
4 0
3 years ago
Which of the following is true for all types of fronts (warm, cold , stationary, and occluded)?
Taya2010 [7]
Can't see any choices but isn't it something to do with different air masses "meeting" each other such as hot air and cold air, with maybe a spot of water vapour and a few winds thrown in for good stormy weather ?
3 0
3 years ago
Other questions:
  • An airplane, starting at rest, takes off on a 600. m long runway accelerating at a rate of 12 m/s/s. How many seconds does it ta
    8·1 answer
  • True or false. Motion is a change in direction. If false change direction to a word that makes it true
    5·1 answer
  • Three eyewitnesses at the scene of a car accident were asked how long the accident lasted. They responded with 11 seconds, 12 se
    6·1 answer
  • A 3.0 pF capacitor consists of two parallel plates that have surface charge densities of 1.0 nC/mm2 . If the potential between t
    10·1 answer
  • A research team developed a robot named Ellie. Ellie ran 1,000 meters for 200 seconds from the research building, rested for 100
    15·1 answer
  • How many orders of magnitude (powers of ten) is the distance to the moon greater than the distance across the Atlantic ocean?
    12·1 answer
  • If a bike is traveling at 12 km/hr for 20 minutes how far will it travel
    11·1 answer
  • In which of Earth’s systems would we find cloud droplets, wind, &amp; weather?
    13·1 answer
  • Which formation moves sediment and erodes rock?
    8·2 answers
  • Can someone help please and thank you:)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!