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
Ierofanga [76]
3 years ago
9

7. An 8 kg ball is travelling to the east at 10 ms', collides with a 2 kg ball travelling to the

Physics
1 answer:
Ymorist [56]3 years ago
3 0

Answer:

The final velocity of the ball is 7m/s

Explanation:

M1=8kg,  V1 =10m/s , M2=2kg , V2=-5m/s

initial momentum before collison

m1v1+m2v2

=8×10 +2×(-5)  =80-10  = 70kg m/s

final momentum after collison

=(m1+m2)×v

=(8+2)×v

=10v

According to the law of conversion of momentum

initial momentum =final momentum

70=10v

10v=70

v=70/10

v=7m/s

You might be interested in
In the study of personality, what model includes different traits that underlie one’s basic tendencies
uysha [10]

In the study of personality, the Five-factor model includes different traits that underlie one’s basic tendencies.

<h3>What is the Five-factor model?</h3>

The Five-factor model is a scientific theory that states traits of the personality of an individual are due to its biology and therefore they respond to adaptations, which are central in the biology field.

In conclusion, in the study of personality, the Five-factor model includes different traits that underlie one’s basic tendencies.

Learn more about the Five-factor model here:

brainly.com/question/17098828

#SPJ1

3 0
1 year ago
Resistors and reactors, for use over 600 volts, shall not be installed in close enough proximity to combustible materials to con
suter [353]

Resistors and reactors, for use over 600 volts, shall not be installed in close enough proximity to combustible materials to constitute a fire hazard and shall have a clearance of not less than<u> 300 mm </u>from combustible materials.

Explanation:

  • The hazards associated with high power industrial resistors are primarily due to their open construction, which is necessary for cooling.
  • The exposed conductors which make up the resistors can be not only a shock hazard but also a thermal burn hazard.
  • When a resistor fails, it either goes open or the resistance increases. When the resistance increases, it can burn the board, or burn itself up.
  • Avoid touching non-flammable resistors in operation; the surface temperature ranges from approximately 350 °C to 400°C when utilized at the full rated value. Maintaining a surface temperature of 200°C or less will extend resistors service life.
  • Do not apply power to a circuit while measuring resistance. When you are finished using an ohmmeter, switch it to the OFF position if one is provided and remove the leads from the meter.
  • Always adjust the ohmmeter for 0 (or in shunt ohmmeter) after you change ranges before making the resistance measurement.

4 0
3 years ago
A charged particle moves through a velocity selector at a constant speed in a straight line. The electric field of the velocity
WARRIOR [948]

Answer:

The charge-to-mass ratio of the particle is 5.7 × 10⁵ C/kg

Explanation:

From the formulae

F = qvB and F = mv²/r

Where F is Force

q is charge

v is speed

B is magnetic field strength

m is mass

and r is radius

Then,

qvB = mv²/r

qB = mv/r

We can write that

q/m = v/rB ---- (1)

Also

From Electric force formula

F = Eq

Where E is the electric field

and magnetic force formula

F = Bqv

Since, electric force = magnetic force

Then, Eq = Bqv

E = Bv

∴ v = E/B

Substitute v = E/B into equation (1)

q/m = (E/B)/rB

∴ q/m = E/rB²

(NOTE: q/m is the charge to mass ratio)

From the question,

E =  3.10 ×10³ N/C

r = 4.20 cm = 0.0420 m

B = 0.360 T

Hence,

q/m = 3.10 ×10³ / 0.0420 × (0.360)²

q/m = 569517.9306 C/kg

q/m = 5.7 × 10⁵ C/kg

Hence, the charge-to-mass ratio of the particle is 5.7 × 10⁵ C/kg.

7 0
3 years ago
How is a mesa formed
mina [271]

Mesas form by weathering and erosion of horizontally layered rocks that have been uplifted by tectonic activity. Variations in the ability of different types of rock to resist weathering and erosion cause the weaker types of rocks to be eroded away, leaving the more resistant types of rocks topographically higher than their surroundings. This process is called differential erosion. 

Hope it helps!

4 0
3 years ago
Read 2 more answers
a 16.0 kg cart is being pulled by a 95.4 N force to the right and a 36.0 N force to the left. What is the acceleration of the ca
Inga [223]

Answer:

The cart's acceleration is \approx 3.71\,\,\frac{m}{s^2}

Explanation:

Let's start by finding the net force acting on the cart, and then find its acceleration using Newton's 2nd Law.

Net force = 95.4 N -36.0 N = 59.4 N

Now, since we know the cart's mass, we can use Newton's 2nd Law to find the cart's acceleration:

F=m\,*\,a\\a=\frac{F}{m} \\a=\frac{59.4}{16} \,\,\frac{m}{s^2} \\a\approx 3.71\,\,\frac{m}{s^2}

8 0
3 years ago
Other questions:
  • the velocity of sound in a certain medium is 1000 m/s. If sound wave has a frequency of 500 Hz, the wavelength would be _.
    6·1 answer
  • An ideal incompressible fluid flows at 12 m/s in a horizontal pipe. If the pipe widens to twice its original radius, what is the
    14·1 answer
  • The gravitational acceleration on the moon is about one-sixth the size of the gravitational acceleration on Earth. According to
    13·2 answers
  • What is nanotechnology?
    12·1 answer
  • Consider a particle launched at a horizontal velocity v0 from a height h above the ground. 1. Derive an expression for the time
    14·1 answer
  • is ship of mass 1200 tonnes floats in seawater what volume of sea water those it displace?If the ship enter fresh water what mas
    5·1 answer
  • Physical values in the real world have two componnts: magnitude and ____
    11·1 answer
  • Which approach would be the most interested in studying Phineas Gage
    8·1 answer
  • A sledge is pulled in a straight line by dogs, as shown. The dogs produce a total horizontal driving force of 600 N. The frictio
    7·1 answer
  • A particle performing uniform circular motion has angular momentum L. What will be the new angular momentum, if its angular freq
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!