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
strojnjashka [21]
3 years ago
13

Three pendulums all have the same length and start from the same height. The first pendulum is very light and has a mass of 67 g

. The second pendulum has a mass of 1.5 kg. The final pendulum has a mass of 3.3 kg. Assume that the effects of air drag are negligible. Which pendulum attains the highest velocity
Physics
1 answer:
vovikov84 [41]3 years ago
3 0

Answer:

All three pendulum will attain same velocity

Explanation:

All three pendulum will attain same velocity irrespective of their mass difference in isolated system (means where air drag are negligible) and at same length

As you know when velocity is calculated we can not take mass into account.  

You might be interested in
For an object that travels at a fixed speed along a circular path, the acceleration of the object is
lidiya [134]
For an object that travels at a fixed speed along a circular path, the acceleration of the object is LARGER IN MAGNITUDE THE SMALLER THE RADIUS OF CIRCLE.
8 0
3 years ago
Read 2 more answers
If Johnny won a 300 meter race in 40 seconds, his speed would be ?
irina1246 [14]

Formula: s = d/t

s = speed

d = distance

t = time

Solve using the values we are given.

s = 300/40

s = 7.5m/s

Best of Luck!

4 0
4 years ago
Read 2 more answers
Calculate the wavelength and frequency at which the intensity of the radiation is a maximum for a blackbody at 298 K. You will n
Juliette [100K]

Answer:

Wavelength, \lambda=9.72\times 10^{-6}\ m

Frequency, f=3.08\times 10^{13}\ Hz

Explanation:

We need to find the intensity of the radiation is a maximum for a black body at 298 K. It can be calculated using Wein's displacement law. It is given by :

\lambda T=2.898\times 10^{-3}\ m-K

\lambda=\dfrac{2.898\times 10^{-3}}{T}

Here, T = 298 K

\lambda=\dfrac{2.898\times 10^{-3}}{298}

\lambda=9.72\times 10^{-6}\ m

If f is the frequency of black body radiation. It is given by :

f=\dfrac{c}{\lambda}

f=\dfrac{3\times 10^8}{9.72\times 10^{-6}}

f=3.08\times 10^{13}\ Hz

Hence, this is the required solution.                                              

6 0
3 years ago
A force of 6.0 N is applied horizontally to a 3.0 kg crate initially at rest on a horizontal frictionless surface. After the cra
Savatey [412]

Answer:

a. Yes, because the acceleration of the crate is 2.0 m/s².

Explanation:

Given

Force = 6N --- f

Mass = 3kg --- m

Time = 1.5s --- t

Velocity = 3.0m/s --- v

Required

Does the system support F=ma

Yes, it does and this is shown below

The crate is initially at rest; so:

u = 0

Using the first equation of motion

v = u + at

Substitute values for v, u and t

3 = 0 + a*1.5

3 = 1.5a

Make a the subject

a = 3/1.5

a = 2

Using F = ma

Substitute values for F and m

6 = 3 * a

Divide both sides by 3

6/3 = 3/3 * a

2 = a

a = 2

In both cases:

a = 2

<em>Hence, option (a) is correct.</em>

6 0
3 years ago
This important factor of survival for the coral reef is
inna [77]

Answer: biotic

Explanation:

6 0
3 years ago
Other questions:
  • You are out on the water in foggy conditions. You hear one prolonged blast plus two short blasts every two minutes. What does th
    14·1 answer
  • You throw a 50.0g blob of clay directly at the wall with an initial velocity of -5.00 m/s i. The clay sticks to the wall, and th
    6·1 answer
  • If the time for 20 vibrations is 100 second then find
    15·2 answers
  • The scientific method is? (apex)
    12·2 answers
  • What's the formula for frequency?
    9·1 answer
  • A body has weight 600N on the surface of the mars then what is its mass on the same place.​
    7·2 answers
  • Jack observed his coworker Jane crying when she was called into the boss's office. Jack thinks that crying at work is a sign of
    14·2 answers
  • I need help with this plz
    11·2 answers
  • A light source has a frequency of 7.56 x 1014 Hz. What is the wavelength, in nanometers (nm), of this light when it passes throu
    6·1 answer
  • URGENT PLEASE ANSWER THIS ASAP I WILL MARK YOU THE BRAINLIEST !!!
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!