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
Agata [3.3K]
3 years ago
10

A 0.100 kg limestone cube is released from rest, and proceeds to slide down a frictionless ramp. At the bottom of the ramp, the

limestone cube makes an elastic collision with a steel cube whose mass is 0.200 kg, which is initially at rest. At what vertical height should the limestone cube be placed such that the steel cube has a velocity of 1.50 m/s after the collision
Physics
1 answer:
Olegator [25]3 years ago
4 0

Answer:

the height at which the limestone cube must be placed is 0.23 m.

Explanation:

Given;

mass of limestone cube, m₁ = 0.1 kg

initial velocity of the limestone cube, u₁ = 0

mass of steel cube, m₂ = 0.2 kg

initial velocity of the steel cube, u₂ = 0

final velocity of the steel cube, v₂ = 1.5 m/s

Apply the principle of conservation of energy to determine the height of the limestone cube.

Potential energy of the limestone cube at top = Kinetic energy of steel cube at base

m₁gh = ¹/₂m₂v₂²

where;

h is the height at which the limestone cube is placed

h = \frac{m_2v_2^2}{2m_1g} \\\\h = \frac{0.2\times 1.5 ^2}{2 \times 0.1 \times 9.8} \\\\h =0.23 \ m

Therefore, the height at which the limestone cube must be placed is 0.23 m.

You might be interested in
A stone is thrown vertically upward with a speed of 18.0 . (a)How fast is it moving when it reaches a height of 11.0 ? (b)How lo
aliina [53]
For the first part, we are looking for Vf when dy=11.0
Upward is positive, downward is negative. 
So <span>Vf = square root [2(-9.8)(11.0) + (18.0)^2] </span>
<span>Vf = 10.4 m/s your answer is correct. 

For the part b, t is equals to the time took to reach and dy is equals to 11.0
you did, </span>11= 18t m/s-(1/2) 9.8t^2 then <span>-11 + 18t- 9.8t^2. By quadratic formula, for the way down the answer is 2.9 s while on it's way up, the answer is 0.77 s</span><span>
 </span> 
5 0
2 years ago
Two speakers, one directly behind the other, are each generating a 280-Hz sound wave. What is the smallest separation distance b
Annette [7]

Answer:

1.21m

Explanation:

If two speakers are generating a frequency of 280Hz, the smallest separation distance between the speakers that will produce destructive interference at a listener standing in front of them is also known as the wavelength of the sound wave generated.

Using the expression;

Velocity v = frequency f × wavelength ¶

Given frequency = 280Hz, speed of sound v = 338m/s

Substituting this data's in the expression given to get the wavelength will give;

¶ = v/f

¶ = 338/280

¶ = 1.21m

The smallest separation between the speakers that will produce the interference is 1.21m

4 0
3 years ago
What does this picture mean?
ivann1987 [24]
<span>
be aware of large trucks on the roadway
Tip: usually, these signs are hazard signs or warning.
Also, this isnt physics </span><span />
5 0
2 years ago
Read 2 more answers
How is tidal energy obtained
yKpoI14uk [10]
Under water turbans that are placed at the above to middle of the ocean they are used to capture kinetic motion
7 0
3 years ago
Help i forgot to complete this worksheet
Naily [24]

just search up the answer/ definition to all of them, rephrase into own words, then do the same for examples.

6 0
3 years ago
Other questions:
  • The sputnik one satellite orbiting earth mass equals 5.98×10 to the 24th power kilograms in a circle of radius 6.96×10 to the si
    8·1 answer
  • Josie sees lightning off in the distance. A few seconds later she hears thunder. What can Josie conclude?
    14·2 answers
  • If you push a 1000 kg box so in 2 seconds its velocity changes from 5m/s to 10 m/s how much force do you have to apply?
    7·1 answer
  • In a vehicle collision, the longer it takes to dissipate kinetic energy, the _______ the force of impact. higher faster slower l
    10·2 answers
  • Which best describes how the sun rotates?
    10·2 answers
  • The pressure, volume, and temperature of a mole of an ideal gas are related by the equation PV = 8.31T, where P is measured in k
    9·1 answer
  • When two ocean plates come together, one ocean plate __________________
    13·1 answer
  • Would a larger, more heavier ball fall faster than a smaller and lighter ball?
    14·1 answer
  • FLAMING OR ALBERT .........
    14·2 answers
  • What name is given to the force on an object caused by Earth's gravitational pull?​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!