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
wel
3 years ago
14

An object is dropped from rest.

Physics
1 answer:
sesenic [268]3 years ago
3 0

Taha xain malai ..........hhdd

You might be interested in
Ten high-technology batteries are tested for 200 hours each. One failed at 20 hours; another failed at 140 hours; all others com
Bas_tet [7]

Answer:

Failure rate   = 20%

MTBF = 880 hours

Explanation:

given data

batteries = 10

tested = 200 hours

one failed = 20 hours

another fail at =  140 hours

solution

we know that Mean Time between Failures is express as = (Total up time) ÷  (number of breakdowns)    ....................1

so here Total up time will be

Total up time = 200 × 10

Total up time = 2000

and here

Number of breakdown = 1 at 20 hour and another at 140 hour = 2

so it will be  = (Total up time) ÷ (number of breakdowns)      .......2

=  \frac{2000}{2}   =  1000  

so here gap between occurrences is

gap between occurrences=  140 - 20

gap between occurrences = 120 hour

and

MTBF  will be

MTBF = 1000 - 120

MTBF = 880 hours  

and

Failure rate (FR)  will be

Failure rate (FR) =  1 ÷ MTBF    ................3

Failure rate (FR) = R÷T     ......................4

as here R is the number of failures and T is total time

so Failure rate (FR)  = 20%

4 0
3 years ago
The vertical component of the projectile motion of an object depends on which of these? initial velocity or angel of trajectory
SVEN [57.7K]
It depends on both of them.

In fact, the projectile begins its motion with an initial velocity of v_0 and an angle of \alpha. On the y-axis (vertical direction), it is an accelerated motion with acceleration equal to -g (gravitational acceleration). The vertical velocity of the projectile at any time t is given by
v_y (t) = v_0 sin \alpha + gt
and as it can be seen, this depends on both initial velocity and angle.
3 0
3 years ago
Calculate the wave length of a water wave with a speed of 20 m/s and a frequency of 2.5 Hz
12345 [234]

Wavelength of the water wave is 8 m

Explanation:

  • Wavelength measures the distance between two successive crests or troughs of the wave. It is given by the following equation

λ = v/f, where f is the frequency, v is the velocity of the wave

Here, v = 20 m/s and f = 2.5 Hz

⇒ λ = 20/2.5

      = 8 m

5 0
3 years ago
What is the average velocity of the person taking this walk?
Butoxors [25]
5 would be the answer
6 0
3 years ago
Read 2 more answers
Which simple machine is a doorknob?
Anestetic [448]

The answer is wheel and axle

3 0
3 years ago
Other questions:
  • TRUE OR FALSE: with time and pressure, peat turns into lignite, or brown coal.
    13·2 answers
  • According to Einstein's special theory of relativity, in which frames of reference will all laws of physics apply?
    5·2 answers
  • What is thermal equilibrium?
    13·2 answers
  • In outer space a five KG object moving in to the right at 4M/S and a two KG object moving to the left at 3MS collide and stick t
    13·1 answer
  • The length ofa train is 44.5 m. Its front is 100. m from a pole. It accelerates from rest at 0.500 m/s^2. (a) How long does it t
    12·1 answer
  • Gravitational Force
    14·1 answer
  • If a crow flies west for 60 km and then south for 45 km, what is the direction of its displacement?
    10·1 answer
  • A person next to a fireplace feels warm. How is the heat transferred to them?
    13·1 answer
  • You have two rocks made of the same material that are at the same
    14·2 answers
  • What number on this diagram indicates the trend line?<br><br> A. 1<br> B. 2<br> C. 4<br> D. 7
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!