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
pav-90 [236]
2 years ago
15

The observation deck of a skyscraper is 420 m above

Physics
1 answer:
Reil [10]2 years ago
5 0
2e min :)) pls park braliest
You might be interested in
Before the big bang, the universe was much ____ and _____ than it is now.
Dahasolnce [82]
The answer to the question is that before the big bang, the universe was much hotter and more dense than it is now. Letter B.
It is because after the big bag occurred, the universe became cooler and less dense.
a. - does not correspond in the answer because the universe became less dense after the big bang.
c - the universe became cool and less dense after the big bang so being cool and less dense does not correspond to the question.
d - cooler does not answer the question because it only became cooler after the big bang.
5 0
3 years ago
Read 2 more answers
Which of the following scenarios represents the best use of a scientific model?
valkas [14]

Answer:

Predicting weather patterns is the answer :-)

Explanation:

4 0
3 years ago
If a wave hits a smooth surface at an angle of incidence of 40 degrees, the angle of reflection is
dem82 [27]
As the surface given is a smooth surface, we can use specular reflection. According to the law of specular reflection, the angle of incidence equals the angle of reflection, so it will also be 40°. Answer is A.
5 0
3 years ago
Read 2 more answers
Please solve the Problem.
STatiana [176]

(a) For series circuit, current in 14 ohms = current in 72 ohms = 0.698 A

(b) Power loss in each series resistor, 14 ohms = 6.82 W and 72 ohms = 35.1 W.

(c) For parallel circuit, current in 14 ohms = 4.29 A and current in 72 ohms = 0.83 A

(d) Power loss in each parallel resistor, 14 ohms = 257.4 W and 72 ohms = 49.8 W.

<h3>Current in each series resistors</h3>

The total resistance = R1 + R2

                              R = 14 + 72 = 86 ohms

Current = V/R = 60/86 = 0.698 A

Since the resistors are in series, current in 14 ohms = current in 72 ohms = 0.698 A

<h3>Power loss in each series resistor</h3>

P = I²R

P(14 ohms) = (0.698)² x 14 = 6.82 W

P(72 ohms) = (0.698)² x 72 = 35.1 W

<h3>Current in each resistor for parallel arrangement</h3>

Total resistance, 1/R = 1/R1 + 1/R2

1/R = 1/14 + 1/72

1/R = 0.0853

R = 1/0.0853

R = 11.72

Total current in the circuit = V/R = 60/11.72 = 5.12 A

Current in 14 ohms = 60/14 = 4.29 A

Current in 72 ohms = 60/72 = 0.83 A

<h3>Power loss in each parallel resistor</h3>

P = IV

P(14 ohms) = (4.29) x 60 = 257.4 W

P(72 ohms) = 0.83 x 60 = 49.8 W

Learn more about current here: brainly.com/question/24858512

#SPJ1

5 0
2 years ago
If C moves to position 5 (60 meters), what is its average velocity during these 5 seconds?
Hoochie [10]

Velocity:

60 meters/ 5 seconds= 12 meters/second

Velocity=12meters/second

(60 meters divided by 5 seconds equals 12 meters per second)

Hope this helps!

3 0
3 years ago
Read 2 more answers
Other questions:
  • You may make the following measurements of an object 42kg and 22m3. What would the objects density be?
    12·1 answer
  • Is cotton a gas, liquid or solid
    6·1 answer
  • Mechanical energy is conserved in the presence of which of the following types of forces?magnetic
    12·1 answer
  • A man is riding his 4-wheeler at 60 km/hr. If he is riding it constantly at this rate for 1.5 hours, how far did he ride?
    10·1 answer
  • A car is 200 m from a stop sign and traveling toward the sign at 40.0 m/s. At this time, the driver suddenly realizes that she m
    14·1 answer
  • What is the relationship between an object’s temperature and its heat
    11·1 answer
  • When referring to body composition we are talking about our leanness. Lean muscle burns _________ calories than fat.
    5·1 answer
  • Which of the following is not a multicellular organism?
    13·1 answer
  • A cannon is fired horizontally at 243 m/s off of a 62 meter tall, shear vertical cliff. How far in meters from the base of the c
    9·1 answer
  • Why are multiple images seen when two plane mirrors are placed at an angle​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!