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
Aleks04 [339]
3 years ago
6

I NEED THIS ANSWER TODAY PLEASE HELP ME

Physics
2 answers:
Anastaziya [24]3 years ago
7 0

The answer is "B" - If there are no windows then there will be no light coming in, and therefore you don't have to worry about what time of day you do the experiment at.

Inessa05 [86]3 years ago
5 0

B. The time of day


^^ not really sure but haha

You might be interested in
A cart is pushed on a frictionless floor with 29.6 Newtons of force along a distance of 5.9 meters in 8.1 seconds. How much powe
marta [7]

Answer:

Power = 21.6 Watts

Explanation:

Power = \frac{W}{t}

Where W = work and t = time.

W = Fs

Where F is force and s is displacement.

29.6N(5.9m) = 174.64J

W = 174.64J

Power = \frac{174.64J}{8.1s}

Power = 21.6 Watts

8 0
3 years ago
I NEED HELP, PLEASE.
Zinaida [17]
Hello,


I'd be glad to help.

Momentum  =  (mass) times (speed)

                                           =  (75 kg)  x  (18 m/s)

                                           =         1,350 kg-m/s  .    

Hope this helps
5 0
3 years ago
How much work would be needed to raise the payload from the surface of the moon (i.e., x = r) to the "end of the universe"?
meriva
Moon was rotation Earth or sun
it's own orbit . universe is not end
6 0
3 years ago
Read 2 more answers
A mass weighing 4 lb stretches a spring 2 in. Suppose that the mass is given an additional 6-in displacement in the positive dir
givi [52]

Answer:

\frac{1}{8} y'' + 2y' + 24y=0

Explanation:

The standard form of the 2nd order differential equation governing the motion of mass-spring system is given by

my'' + \zeta y' + ky=0

Where m is the mass, ζ is the damping constant, and k is the spring constant.

The spring constant k can be found by

w - kL=0

mg - kL=0

4 - k\frac{1}{6}=0

k = 4\times 6 =24

The damping constant can be found by

F = -\zeta y'

6 = 3\zeta

\zeta = \frac{6}{3} = 2

Finally, the mass m can be found by

w = 4

mg=4

m = \frac{4}{g}

Where g is approximately 32 ft/s²

m = \frac{4}{32} = \frac{1}{8}

Therefore, the required differential equation is

my'' + \zeta y' + ky=0

\frac{1}{8} y'' + 2y' + 24y=0

The initial position is

y(0) = \frac{1}{2}

The initial velocity is

y'(0) = 0

6 0
3 years ago
A car with an initial velocity of 5.0 is acelerated at 3.0for 4.0seconds what os the velocity of tje car ofter the 4.0seconds
sasho [114]
Vf =Vi+at
Vf= 5 + 3*4
Vf=5+12
Vf=17m/sec
6 0
3 years ago
Other questions:
  • A piston-cylinder device contains 3 kg of saturated water vapor at 200 kPa. Now heat is transferred to the system at constant pr
    7·1 answer
  • What is the acceleration?
    7·1 answer
  • A dragster going 15m/s increases its velocity to 25 m/s north in 4 seconds.
    9·1 answer
  • A boy in a wheelchair (total mass 56.5 kg) has speed 1.40 m/s at the crest of a slope 2.05 m high and 12.4 m long. At the bottom
    6·1 answer
  • Which of the following types of electromagnetic radiation has the most energy?
    12·2 answers
  • What acceleration will you give to a 27.8 kg
    9·1 answer
  • New york to Los Angeles is roughly 2,800 miles. If you drive 70mph, how long will it take to travel that distance?
    10·1 answer
  • What is random motion? write any two examples​
    15·2 answers
  • 15 PNTS
    11·2 answers
  • A copper wire 225m long must experience a voltage drop of less than 2.0v when a current of 3.5 a passes through it. compute the
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!