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
leva [86]
3 years ago
9

A bug is moving along a meter stick in the negative direction at a constant speed of 0.85cm/s. After 42 seconds have passed the

bug is located at 27.0 cm. What was the bug’s starting position.
Physics
1 answer:
Agata [3.3K]3 years ago
3 0

Given that,

bug speed, v= 0.85 m/s

time, t =42 s

Final position of bug on meter stick was 27 cm

Starting position of bug on meter stick = ?

Since we know that,

s = vt

s= 0.85*42 = 35.7 cm

this is the distance covered by bug in the given time and velocity.

since the bug is moving in negative direction, starting point will be:

27.0 cm+ 35.7 cm = 62.7 cm

The bugs starting position on meter stick was 62.7 cm.

You might be interested in
4. The diameters of bolts produced by a certain machine are normally distributed with a mean of 0.35 inches and a standard devia
slamgirl [31]

Answer:

25.25%

Explanation:

Mean diameter (μ) = 0.35 inches

Standard deviation (σ) = 0.03 inches

For any given diameter, X, the z-score is given by:

z=\frac{X-\mu}{\sigma}

For X= 0.37 inches:

z=\frac{0.37-0.35}{0.03}\\z=0.6667

A z-score of 0.6667 is equivalent to the 74.75-th percentile of a normal distribution.

Therefore, the percentage of bolts that will have a diameter greater than 0.37 inches is:

P(X>0.37) = 100 - 74.75\\P(X>0.37) = 25.25\%

3 0
3 years ago
3.
Leto [7]
One eighth of a gram will remain
3 0
3 years ago
When light passes the
Leno4ka [110]

When light crosses the boundary between layers with different densities, the light is refracted. (A).

3 0
3 years ago
You prepare tea with 0.250 kg of water at 85.0 ºC and let it cool down to room temperature (20.0 ºC) before drinking it. Essenti
vladimir2022 [97]

Answer:

232 J/K

Explanation:

The amount of heat gained by the air = the amount of heat lost by the tea.

q_air = -q_tea

q = -mCΔT

q = -(0.250 kg) (4184 J/kg/ºC) (20.0ºC − 85.0ºC)

q = 68,000 J

The change in entropy is:

dS = dQ/T

Since the room temperature is constant (isothermal):

ΔS = ΔQ/T

Plug in values (remember to use absolute temperature):

ΔS = (68,000 J) / (293 K)

ΔS = 232 J/K

5 0
3 years ago
Young's experiment is performed with light of wavelength 502 nm from excited helium atoms. Fringes are measured carefully on a s
PSYCHO15rus [73]

Answer:

Explanation:

wave length of light λ = 502 nm

screen distance D = 1.2 m

width of one fringe = 10.2 mm / 20

= .51 mm

fringe width = λ D / a  , a is separation of slits

Puting the values given

.51 x 10⁻³ =  502 x 10⁻⁹ x 1.2 / a

a = 502 x 10⁻⁹ x 1.2 / .51 x 10⁻³

= 1181.17 x 10⁻⁶ m

1.18 x 10⁻³ m

= 1.18 mm .

8 0
3 years ago
Other questions:
  • Magma is classified as basaltic and andesitic or rhyolitic based on my factor
    7·1 answer
  • What is the distance of the spaceship from the earth
    11·1 answer
  • Please help asap. I'm terrible with atoms
    13·2 answers
  • Find the kinetic energy of a 0.1-kilogram toy truck moving at the speed of 1.1 meters per second.
    14·1 answer
  • Which type of waves is important to have for a surfer who wants to do aerial maneuvers? A. Plunging waves B. Surging waves C. Or
    5·1 answer
  • what is the specific heat of a substance that requires 99,100J of thermal energy to heat 3.47 kg of this substance from 15 C to
    15·1 answer
  • If we double the diameter of a telescope's mirror, what happens to its light-gathering ability? View Available Hint(s) If we dou
    14·1 answer
  • Which is a device made from a coil of wire that carries a current and produces a magnetic field?
    8·2 answers
  • What are two types of forces exerted by magnets?
    12·2 answers
  • If the mass of the sun is 2x, at least one planet will fall into the habitable zone if I place a planet in orbits___, ____, ____
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!