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
alexira [117]
2 years ago
7

Alex collides with a desk as he runs through his office. If the combined

Physics
2 answers:
Ivan2 years ago
8 0

Answer:

400 kg.m/s

Explanation:

In a closed system, the principle of conservation of momentum applies. It means. the total momentum before collision equals to the total momentum after collision hence since the initial momentum is given as 400 kg.m/s, the final sum will be the same.

Alexus [3.1K]2 years ago
8 0

Answer:

400 kg•m/s north

Explanation:

answer for quiz from apex

You might be interested in
When a driver hits the brakes, his car decelerates from 50m/s at a uniform rate of 2.0m/s^2. His car stops after covering some d
Assoli18 [71]

Please find attached photograph for your answer. Please do comment whether it is useful or not.

7 0
3 years ago
In still​ water, a boat averages 18 18 miles per hour. it takes the same amount of time to travel 16 miles 16 miles ​downstream,
Vladimir79 [104]
<span>The current is 6 miles per hour.
   Let's create a few equations:
 Traveling with the current:
 (18 + c)*t = 16

   Traveling against the current:
 (18 - c)*t = 8

   Let's multiply the 2nd equation by 2
 (18 - c)*t*2 = 16

   Now subtract the 1st equation from the equation we just doubled.
 (18 - c)*t*2 = 16
 (18 + c)*t = 16

   (18 - c)*t*2 - (18 + c)*t = 0
 Divide both sides by t
 (18 - c)*2 - (18 + c) = 0

   Now solve for c
 (18 - c)*2 - (18 + c) = 0
 36 - 2c - 18 - c = 0
 36 - 2c - 18 - c = 0
 18 - 3c = 0
 18 = 3c
  6 = c

   So the current is 6 mph.
   Let's verify that.
 (18 + 6)*t = 16
 24*t = 16
 t = 16/24 = 2/3

   (18 - 6)*t = 8
 12*t = 8
 t = 8/12 = 2/3

   And it's verified.</span>
4 0
3 years ago
URGENT What does Newton's third law say about why momentum is conserved in collisions?
valentinak56 [21]
Newton's third law of motion is naturally applied to collisions between two objects. In a collision between two objects, both objects experience forces that are equal in magnitude and opposite in direction.For such a collision<span>, the forces acting between the two objects are equal in magnitude and opposite in direction</span>
4 0
3 years ago
Read 2 more answers
Why do magnets move objects in different ways?
atroni [7]

Answer:

Magnets have two poles, called north and south. The like poles are attracted to unlike poles, but like poles repel each other. For example, the north pole of one magnet is attracted to the south pole of another. ... To make objects move with a magnet attach a piece of metal, or another magnet, to it.

7 0
2 years ago
What is the force of gravity between two 40.0kg masses that are separated by 3.00m?
Slav-nsk [51]

Answer:

f = g \times \frac{m1 \times m2}{ {d}^{2} }

f = 6.67 \times  {10}^{ - 11}  \times \frac{40 \times 40}{9}

<h2>F=1.2x 10^-8</h2>
3 0
3 years ago
Other questions:
  • Which value is equivalent to 178 centimeters?
    15·1 answer
  • What is special about a DC circuit?
    6·2 answers
  • What three categories can every living thing in a forest ecosystem be sorted into
    7·1 answer
  • A total solar eclipse is a rare event. Although they occur somewhere on earth every 18 months on average, it is estimated that t
    9·2 answers
  • A wave has a wavelength of 20 mm and a frequency of 5 Hz what is the speed?
    10·1 answer
  • Which of the following is true A. If the sum of the external forces on an object is zero, then the object must be in equilibrium
    10·1 answer
  • According to the Get Fit and Be active book, page 5 talks about the phases of exercise, what is step 2? Question 2 options:
    9·1 answer
  • Which is the best description of biodiversity?
    7·2 answers
  • When a planet orbits the Sun, the
    15·2 answers
  • A cannon fires a 40.5kg shell toward a target and the shell moves with a velocity of 120 m/s. Calculate the shells momentum
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!