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
Sav [38]
3 years ago
5

which type of lightening device would you use for each of the following needs: an economical light source in a manufacturing pla

nt, an eye-catching sign that will be visible at night, and a basketball stadium? Explain - PHYSICAL SCIENCE
Physics
1 answer:
Yakvenalex [24]3 years ago
7 0
Btw only someone who is nice will answer tour question. You can't expect for explanition when the question is only worth 5 points. Not trying to be mean sorry if i am being mean
You might be interested in
A 34-kg child runs with a speed of 2.8 m/s tangential to the rim of a stationary merrygo-round. The merry-go-round has a momentu
tekilochka [14]

Answer: 0.43\ rad/s

Explanation:

Given

Mass of child m=34\ kg

speed of child is v=2.8\ m/s

Moment of inertia of merry go round is I=510\ kg.m^2

radius r=2.31\ m

Conserving the angular momentum

\Rightarrow mvr=I\omega \\\Rightarrow 34\times 2.8\times 2.31=510\times \omega\\\\\Rightarrow \omega=\dfrac{219.912}{510}\\\Rightarrow \omega=0.43\ rad/s

7 0
3 years ago
When a person's temperature reaches 104 degrees, the chances of survival are decreased dramatically. Group of answer choices Tru
Natali5045456 [20]

Answer:

True

Explanation:

With the increase in temperature hypothalamus fails and heatstroke occurs due to this failure. Hypothalamus is the region of our brain that act as a thermostat. It co-ordinates our physiological response to excessive heat. When the person’s temperature reaches to 104 degrees then it causes heatstroke. This heatstroke is very sudden and can kill person. Hence, we can conclude that when person’s temperature reaches to 104 degrees chances of survival decreases dramatically.

8 0
3 years ago
A child pushes a toy box across the floor in 5 seconds. If he did 30 J of work on the toy box, what amount of power was required
s2008m [1.1K]
My answer is 6 watts because 30J/5s is 6
4 0
3 years ago
Read 2 more answers
A radio have a wavelength of 0.3m and travels at a speed of 300,000,000 m/s. What is the frequency of this wave?​
Ilya [14]

The frequency of the wave is 1\cdot 10^9 Hz

Explanation:

The frequency, the wavelength and the speed of a wave are related by the following equation:

c=f \lambda

where

c is the speed of the wave

f is the frequency

\lambda is the wavelength

For the radio wave in this problem,

\lambda = 0.3 m

c=300,000,000 m/s = 3\cdot 10^8 m/s

Therefore, the frequency is:

f=\frac{c}{\lambda}=\frac{3\cdot 10^8}{0.3}=1\cdot 10^9 Hz

Learn more about waves here:

brainly.com/question/5354733

brainly.com/question/9077368

#LearnwithBrainly

4 0
3 years ago
A 46.5-kg ball has a momentum of 57.2 kg m/s. What is the ball's speed?
Serhud [2]

Answer:

1.23 m/s

Explanation:

p=mv

57.2 = 46.5v

v= 57.2/46.5

v= 1.23

If you want to verify your answer, just insert the value of v in the equation.

5 0
3 years ago
Other questions:
  • Which statements are correct? Check all that apply. A. An insulator slows the flow of heat. B. A conductor increases the flow of
    5·2 answers
  • A truck covers 40.0 m in 7.50 s while uniformly slowing down to a final velocity of 2.55 m/s. (a) Find the truck's original spee
    14·1 answer
  • A truck slows down. Which claim about the forces acting on the truck must be true? Choose 1 answer: Choose 1 answer: (Choice A)
    6·1 answer
  • Match these items.
    14·1 answer
  • a body of mass 2kg is released from rest on a smooth plane at an angle of 60 degree to the horizontal.calculate the acceleration
    12·1 answer
  • Why do solid have fixed shape?
    7·2 answers
  • Can anyone please answer both of these questions?
    9·1 answer
  • If you calculate the thermal power radiated by typical objects at room temperature, you will find surprisingly large values, sev
    8·1 answer
  • What kind of situation can you think would be a benefit of reducing friction?
    13·1 answer
  • What is the gravity of sombrero galaxy compared to earth?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!