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
galina1969 [7]
3 years ago
8

5. Which of the following is velocity? *

Physics
1 answer:
ivann1987 [24]3 years ago
3 0
A. 20m/s because the unit for velocity is m/s
You might be interested in
A soft-drink bottler purchases glass bottles from a vendor. The bottles are required to have internal pressure strength of at le
maria [59]

Answer: K =24 psi

Explanation:

Given: Standard deviation =3psi

Internal pressure strength =157psi

Number of random bottle =n=64

K= 3 × square root of 64

K= 3×8=24 psi

If mean internal pressure K fall below K,

157-1.3=155.7psi

At 2%:

0.16×64 = 10.24

5 0
3 years ago
an ice cube placed in microwave melts in five minutes and it takes 3.50 kj of energy to melt it. what is the power of the microw
Artist 52 [7]

If the ice absorbed 350,000 joules in 5 minutes, then it absorbed energy
at the rate of

   (350,000 joules) / (5 x 60 seconds)  =<em>  1,166-2/3 watts</em> .

Surely the ice cube didn't absorb every joule delivered to the cooking chamber,
so the microwave oven's cooking power had to be significantly more than that.

6 0
3 years ago
When heat is added to an object, what is happening to the item at the atomic level? (Check all that apply)
3241004551 [841]

Answer:

a

Explanation:

heat is energy, energy cannot be made or destroyed but transferred

6 0
3 years ago
Read 2 more answers
Pls help will mark Brainliest
BartSMP [9]

Answer: 100 units

Explanation:

8 0
3 years ago
Question 4. A tuning fork ‘A’ produces 6 beats/sec with another fork ‘B’ of un-known frequency. On
8090 [49]

Clever problem.

We know that the beat frequency is the DIFFERENCE between the frequencies of the two tuning forks.  So if Fork-A is 256 Hz and the beat is      6 Hz, then Fork-B has to be EITHER 250 Hz OR 262 Hz.  But which one is it ?

Well, loading Fork-B with wax increases its mass and makes it vibrate SLOWER, and when that happens, the beat drops to 5 Hz.  That means that when Fork-B slowed down, its frequency got CLOSER to the frequency of Fork-A ... their DIFFERENCE dropped from 6 Hz to 5 Hz.

If slowing down Fork-B pushed it CLOSER to the frequency of Fork-A, then its natural frequency must be ABOVE Fork-A.

The natural frequency of Fork-B, after it gets cleaned up and returns to its normal condition, is 262 Hz.  While it was loaded with wax, it was 261 Hz.

4 0
3 years ago
Other questions:
  • In a car how does an air bag minimize the force acting on a person during a collision
    6·2 answers
  • A 282 kg bumper car moving right at 3.50 m/s collides with a 155 kg bumper car moving 1.8 m/s left. Afterwards, the 282 kg car m
    9·1 answer
  • Quartz, gold and calcite are examples
    7·2 answers
  • 1 . A farmer moves along the boundary of his rectangular field of side 10m x 20m . farmer covers 1m in 1sec . what will be the m
    8·1 answer
  • A 350-kg sailboat has an acceleration of 0.62 m/s2 at a angle of 64 degrees north of east find the magnitude and direction of th
    9·1 answer
  • 3) A lead bullet initially at 30 C just melts upon striking a target. Assuming that all of the initial kinetic energy of the bul
    8·1 answer
  • A wave has a speed of 360 m/s. It has a frequency of 20hz what is its wavelength (include correct unit)
    10·2 answers
  • What is the name of the database that Tim Berners Lee built??​
    6·2 answers
  • A block with a mass of 3.7 kg slides with a speed of 2.2 m/s on a frictionless surface. The block runs into a stationary spring
    8·1 answer
  • What is an amorphous solid?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!