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
JulsSmile [24]
3 years ago
7

What element from the periodic table produces blue color in fireworks

Physics
2 answers:
Ket [755]3 years ago
6 0
The answer is copper/cu/#29
sattari [20]3 years ago
4 0
The answer is going to be element #29 Copper makes blue 
Red:#38 
Green:#56
Pink:#3
Yellow:#11
Gold:#20
Hopes This Helps 
You might be interested in
A 30 g bullet moving a horizontal velocity of 500 m/s comes to a stop 12 cm within a solid wall. (a) what is the change in the b
Sidana [21]
M = 30 g = 0.03 kg, the mass of the bullet
v = 500 m/s, the velocity of the bullet

By definition, the KE (kinetic energy) of the bullet is
KE = (1/2)*m*v²
      = 0.5*(0.03 kg)*(500 m/s)² = 3750 J
Because the bullet comes to rest, the change in mechanical energy is 3750 J.

The work done by the wall to stop the bullet in 12 cm is
W = (1/2)*(F N)*(0.12 m) = 0.06F J

If energy losses in the form of heat or sound waves are ignored, then
W = KE.
That is,
0.06F = 3750
F = 62500 N = 62.5 kN

Answer:
(a) 3750 J
(b) 62.5 kN

7 0
3 years ago
5. Which of these affect the brightness of a bulb? Choose all that apply.* 6 po
schepotkina [342]

Answer:

The voltage of the battery

7 0
3 years ago
How many wavelengths of a wave pass a point if the frequency of the wave is 4 hertz?
stepan [7]
Four of them pass a point every second.
3 0
3 years ago
A 200 N trash can is pulled across the sidewalk by a person at constant speed by a force of 75 N. What is the coefficient of fri
Pavel [41]

Answer:

μ = 0.375

Explanation:

F = Applied force on the trash can = 75 N

W = weight of the trash can = 200 N

f = frictional force acting on trash can

Since the trash can moves at constant speed, force equation for the motion of can is given as

F - f = 0

75 - f = 0

f = 75 N

μ = Coefficient of friction

frictional force is given as

f = μ W

75 = μ (200)

μ = 0.375

5 0
3 years ago
A bowling ball rolled with a force of 20 N accelerates at a rate of 5 m/sec2, a second ball rolled with the same force accelerat
emmasim [6.3K]

Answer:

sorry I need points

Explanation:

IM SO SORRY

5 0
3 years ago
Other questions:
  • How much force acts on one surface of a rectangular bedroom wall that is 2.20 m by 3.20 m when atmosspheric pressure is?
    15·1 answer
  • With the switch closed, how does the voltage across the 20-ω resistor compare to the voltage across the 10-ω resistor?
    6·1 answer
  • A golf club hits a stationary 0.05kg golf ball with and average force of 5.0 x 10^3 newtons accelerating the ball at 44 meters p
    15·1 answer
  • In 1949, an automobile manufacturing company introduced a sports car (the "Model A") which could accelerate from 0 to speed v in
    5·1 answer
  • Suppose two comets, comet A and comet B, were orbiting the sun, having the same average orbital radii. If comet A had a higher o
    7·1 answer
  • Which two statements best determine whether an engineering design is
    7·1 answer
  • The temperature at a point (x, y) on a flat metal plate is given by T(x, y) = 45/(6 + x2 + y2), where T is measured in °C and x,
    5·1 answer
  • A force of 16 N to the west is applied to each object below.
    9·2 answers
  • A satellite in orbit around the Earth has a speed of 8 km/s at a given point of its orbit. If the period is 2 h, what is the alt
    14·1 answer
  • What direction would the north pole of a bar magnet point if you were to hang the bar magnet from a thin string?.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!