Ask question

Ask question

All categories

SCORPION-xisa [38]

3 years ago

13

Suppose the total momentum of two masses before a collision is 100 kg m/s. What is the total momentum of the two masses after th

ey collide? A. 0 kg m/s B. 50 kg m/s C. 100 kg m/s D. 200 kg m/s Is the answer D?

1 answer:

soldier1979 [14.2K]3 years ago

4 0

No, momentum is conserved so:
momentum before=momentum after
it is C. 100 kg m/s

You might be interested in

Calculate the force between two small charged spheres having charges of 3×10−7 C and 4×10−7 C placed 20 cm apart.

xxMikexx [17]

Answer:

27 . 10^-7 or 27/1000

Explanation:

We use the Coulomb Law

k = Coloumb Constant

q1 and q2 are the charges

d is the distance between the spheres

3 0

3 years ago

A resistor of 4 ohms is connected isn series to a box speaker of unknown resistance.If a current of 0.6A flows through the speak

Lyrx [107]

Answer:

the total resistance: 20 ohms

the resistance of the speaker: 16 ohms

the voltage across the speaker: 9.6V

7 0

2 years ago

Describe what happens at the molecular level during melting

Strike441 [17]

The molecules of a solid vibrate faster so that they spread out to become a liquid hope this helps

5 0

4 years ago

The critical angle for total internal reflection occurs when:___________.

Anastaziya [24]

Answer:

b) the refracted ray has an angle of 90 degrees

Explanation:

The angle of incidence is measured with respect to the normal separation of the media. The critical angle for total internal reflection occurs is:

$\theta=arcsin(\frac{n_2}{n_1})$

Here $n_2$ and $n_1$ are the refractive index of the mediums. This equation is an application of Snell's law, for the case where the refracted ray has an angle of $90^\circ$ .

5 0

3 years ago

A 0.145 kg baseball is thrown with a velocity of 40 m/s. What is the baseball's momentum?

Rom4ik [11]

The momentum, p, is the product of the mass and the velocity:
p = m*v = 0.145 kg * 40 m/s = 5.8 kg*m/s

3 0

3 years ago