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
katrin [286]
3 years ago
7

A trumpeter plays at a sound level of 75dB. three equally loud trumpet players join in. what is the new sound level?​

Physics
1 answer:
Serjik [45]3 years ago
6 0
The answer is approx 87 decibels.
You might be interested in
PLS ANSWER QUICK IM DOONG THE QUIZ RIGHT NOW!
Juliette [100K]

Answer:

Light slows down

Explanation:

8 0
3 years ago
A loader sack of total mass
vampirchik [111]

Question: A loader sack of total mass

is l000 grams falls down from

the floor of a lorry 200 cm high

Calculate the workdone by the

gravity of the load.​

Answer:

19.6 Joules

Explanation:

Applying

W = mgh........................ Equation 1

Where W = Workdone by gravity on the load, m = mass of the loader sack, h = height, g = acceleration due to gravity

From the question,

Given: m = 1000 grams = (1000/1000) kilogram = 1 kg, h = 200 cm = 2 m

Constant: g = 9.8 m/s²

Substitute these values into equation 1

W = (1×2×9.8)

W = 19.6 Joules

Hence the work done by gravity on the load is 19.6 Joules

8 0
3 years ago
Second<br>class lever short note​
seraphim [82]

Answer:

wow

Explanation:

6 0
3 years ago
Read 2 more answers
At what point is the northern hemisphere pointed farthest away from the sun?
inna [77]
<span>Well, It is the aphelion point, When the Earth is farthest away from the Sun, when the Northern Hemisphere is warm. the Earth is closest to the Sun, or at the perihelion, 2 weeks after the June Solstice, when the Northern Hemisphere is enjoying warm summer months. Well this kind of weather is very nice.</span>
7 0
3 years ago
A negative test charge experiences a force to the right as a result of an electric field. Which is the best conclusion to draw
Alona [7]

Answer:a

Explanation:

4 0
3 years ago
Other questions:
  • Measuring the amount of deuterium in the universe allows us to set a limit on _________.
    13·1 answer
  • An astronaut on a distant planet wants to determine its acceleration due to gravity. the astronaut throws a rock straight up wit
    5·1 answer
  • What means of motion
    12·1 answer
  • What breed is this dog
    8·2 answers
  • The bandgap of InP semiconductor laser is 1.0 eV. The effective mass of the valence band is ½ of the effective mass of the condu
    5·1 answer
  • A source emits sound uniformly in all directions. There are no reflections of the sound. At a distance of 12 m from the source,
    11·1 answer
  • A+20 N force acts on a car and at the same time, a -30 N force acts on the
    5·1 answer
  • At 1:00 a.m., someone breaks a window in the back of a store and robs the safe. On the way out, the thief is cut on a piece of b
    14·1 answer
  • 0.000236 kg has how many<br> significant figures?
    10·1 answer
  • Which part of the electromagnetic spectrum has a lower frequency than visible light? x-rays ultraviolet infrared gamma rays
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!