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
juin [17]
3 years ago
9

Which unit would you use to express the height of your desk?

Physics
1 answer:
swat323 years ago
8 0
Height is the length by nature so i'll use meter to express it!
You might be interested in
Newton began his academic career in 1667 for how long was he a working scientists was he a very productive scientist
taurus [48]
Newton was given the title "scientist" when he was given the Merit Badge at the age of 15. He continued to work in the field of science, and was considered a scientist until his death at the age of 84. That is a total of 69 years of work. Hope this helps!
6 0
3 years ago
An airplane is flying horizontally with a constant momentum during a time interval ?t. (a) Is there a net impulse acting on the
goldenfox [79]

Answer:

Explanation:

Given

Airplane is flying with horizontally with a constant momentum during time interval \Delta t

Impulse is given by change in momentum, so there is no net impulse on the Plane because momentum is constant

(b) As there is no change in momentum therefore impulse of thrust and air drag is balanced i.e. both are equal in magnitude but act in opposite direction                            

7 0
3 years ago
an electron and a 0.0320-kg bullet each have a velocity of magnitude 510 m/s, accurate to within 0.0100%. within what lower limi
MArishka [77]

for this we apply, Heisenberg's uncertainty principle.

it states that physical variables like position and momentum, can never simultaneously know both variables at the same moment.

the formula is,

Δp * Δx = h/4π

m(e).Δv * Δx = h/4π

by rearranging,

Δx = h / 4π * m(e).Δv

Δx = (6.63*10^-34) / 4 * 3.142 * 9.11*10^-31 * 5.10*10^-2

Δx = 6.63*10^-34 / 583.9 X 10 ⁻³¹

Δx = 0.011 X 10⁻³

for the bullet

Δx = (6.63*10^-34) / 4 * 3.142 * 0.032*10^-31 * 5.10*10^-2

Δx = 6.63*10^-34 /2.05

Δx =3.23 X 10⁻³² m

therefore, we can say that the lower limits are   0.011 X 10⁻³  m for the electron and  3.23 X 10⁻³² m   for the bullet

To know more about bullet problem,

brainly.com/question/21150302

#SPJ4

6 0
1 year ago
The emission spectrum of iodine is shown below.<br> Which is the absorption spectrum?
garik1379 [7]
Sorry Sorry Sorry Sorry Sorry Sorry Sorry Sorry
6 0
3 years ago
A boy is playing with a ball of mass 72g attached to a string. He is moving it at constant speed in a horizontal circle of radiu
irina [24]

Answer:

Explanation:

radius of circle r = 0.9 m.

(a ) In a motion on circular path , work done is zero because force ( centripetal force ) acts perpendicular to displacement .

( b )

Tension in string T = m ω²r

Putting the values

60 = .072 x ω² x 0.9

ω² = 926

ω = 30.4 rad /s

angle made in 20 revolutions θ = 20 x 2π = 126.6 rad

time taken = θ / ω

= 126.6 / 30.4

= 4.16 s .

3 0
3 years ago
Other questions:
  • Suppose a 0.04-kg car traveling at 2.00 m/s can barely break an egg. What is the min
    7·1 answer
  • A bowling ball collides with a pin, knocking it over. The ball continues to move
    6·1 answer
  • No physical processes have ever been demonstrated which provide a mechanism for the universe to assemble itself.
    14·2 answers
  • Match each statement with the type of contraceptive it describes
    12·1 answer
  • The process by which rods and cones become less sensitive to light is called ________.
    14·1 answer
  • In the javelin throw at a track-and-field event, the javelin is launched at a speed of 29 m/s at an angle of 36???? above the ho
    6·1 answer
  • What is the life cycle of a eukaryotic cell called?
    15·1 answer
  • What of an object is given relative to an origin
    7·2 answers
  • a meteor is falling towards earth with 4m/s^2 acceleration due to gravity. if mass and radius of the earth are 6*10^24kg and 6.4
    14·1 answer
  • A 3.47-m rope is pulled tight with a tension of 106 N. A wave crest generated at one end of the rope takes 0.472 s to propagate
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!