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
Viktor [21]
3 years ago
13

Two gliders collide on a frictionless air track that is aligned along the x axis. Glider A has an initial velocity of +4.0 m/s a

nd a mass of mA = 0.20 kg. Glider B is initially at rest and has a mass mB. After they collide, A has a velocity of -1.0 m/s and B has a velocity of +2.0 m/s. Determine mB. Assume that It is an elastic collision.
Physics
1 answer:
DedPeter [7]3 years ago
6 0

Answer:

As collision is elastic,thus we can use conservation of momentum equation

mA=0.2 kg

(vB)1=0 m/s.......................as it is on rest before collision

(vA)1=4 m/s

(vA)2=-1 m/s

(vB)2=2 m/s

using equation

(mA*vA+mB*vB)1= (mA*vA+mB*vB)2

Where 1 and 2 represents before and after collision

(0.2*4)+(mB*0)=(0.2*-1)+(mB*2)

0.8=-0.2+(2mB)

mass of object B=mB=0.3 Kg

You might be interested in
Name the forces acting on a plastic bucket container water held above ground level in your hand. Discuss why the forces acting o
SashulF [63]

There are two forces at play:

  • The gravitational force acting downward due to the mass of the bucket and the water that it contains.
  • The upward force that your hand exerts on the bucket.

If the magnitude of the force your hand exerts on the bucket equals the magnitude of the gravitational force, the bucket is in static equilibrium. That means the bucket is not moving and the forces acting on it balance each other out, making the net force 0.

Having 0 net force means the bucket doesn't undergo any acceleration, or change in motion.

5 0
3 years ago
A battery-operated car moves forward as a result of which device? Electromagnet, generator, motor, or a transformer?
Romashka [77]

A battery-operated car moves forward as a result of which device?

A) Electromagnet

B) Generator

<u>C) Motor </u>

D) Transformer

7 0
3 years ago
Read 2 more answers
Susan found a box of old rocks in her garage. They had large crystals and were labeled
ASHA 777 [7]
Calcium rocks I do believe. Jk
3 0
3 years ago
Read 2 more answers
What is meant by "steam distillation"? choose the correct option from below.
Diano4ka-milaya [45]

Answer:

b is the correct option.

Explanation:

Steam distillation is a distillation in which water is added to the mixture being distilled so that water and the organic compounds vaporize, condense and are collected together. This process is applied for the purification of those materials specially the organic materials which are temperature sensitive. The normal boiling method can not be implemented as these materials starts to decompose on high temperatures. This method has got a lot of applications in industries like petrolium refineries and the oil extraction from some plants etc.

7 0
3 years ago
In 1.71 minutes, a ski lift raises four skiers at constant speed to a height of 148 m. The average mass of each skier is 62.9 kg
Vitek1552 [10]

Answer:

3560.36 Watts

Explanation:

Power, P=\frac {nΔW}{Δt) where P is power, n is the number of skiers, t is time in seconds and Δt is change in time, ΔW is given by mgh where m is mass, g is gravitational constant, h is height

Substituting n for 4 skiers, m for 62.9 Kg, g for 9.81, h for 148 m and t for 1.71*60=102.6 seconds

P=\frac {4*62.9*9.81*148}{1.71*60}=3560.360702  Watts

Average power is approximately 3560.36 Watts

6 0
3 years ago
Other questions:
  • If electromagnetic radiation a has a lower frequency than electromagnetic radiation b the wavelength of a is
    6·1 answer
  • A 15m long wire is placed horizontally on the surface of a liquid and is gently pulled up with the force of 60N to keep the wire
    5·1 answer
  • A frictionless pendulum clock on the surface of the earth has a period of 1.00 s. On a distant planet, the length of the pendulu
    6·1 answer
  • If you added sand to your coffee, what kind of mixture would your coffee now<br> be?
    13·1 answer
  • An object of mass 5 kilograms is acted upon by the forces F and F2 as shown.
    5·1 answer
  • 2. In any energy transformation, energy is _____. A created B conserved C destroyed
    9·1 answer
  • At 12 seconds what is the direction of the velocity of the rocket what is the direction of the acceleration rocket
    15·1 answer
  • A student performed the following reaction: 2 A + B2 --&gt; 2AB
    14·1 answer
  • *NEED THIS ANSWERED ASAP*
    9·1 answer
  • This is Formation of the Solar System Lab Report
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!