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
SIZIF [17.4K]
3 years ago
14

A car goes 4 m/s for 10 seconds then speeds up to 12 m/s in

Physics
1 answer:
Sladkaya [172]3 years ago
8 0

Explanation:

For 10 seconds, v= d/t

4= d/10

d = 4×10= 40m

For 2 seconds,

V=d/t

12 =d/2

d =12 × 2 =24m

For the last 10 seconds,

S = ut +1/2 at^2

S = 0×10 + 1/2 × - 3 ×10^2

S=-150m

You might be interested in
Please help asap! Thank you.
olganol [36]

Answer:

direct current

Explanation:

it has a direct path to go down to reach the specific point

4 0
3 years ago
Read 2 more answers
Light of wavelength 500 nm is incident perpendicularly from air on a film 10-4cm thick and of refractive index 1.375. Part of th
Marysya12 [62]

Answer

given,

wavelength (λ)= 500 n m

thickness of film= 10⁻⁴ cm

refractive index = μ = 1.375

distance traveled is double which is equal to 2 x 10⁻⁴ cm

a) Number of wave

     N = \dfrac{d}{\mu\lambda}

     N = \dfrac{2 \times 10^{-6}}{1.375\times 500 \times 10^{-9}}

           N = 2.91

           N = 3

b) phase difference is equal to

Reflection from the first surface has a 180° (½λ) phase change.

There is no phase change for the 2nd surface reflection and there is no phase difference for the 2nd wave having traveled an exact whole number of waves.

net phase difference = 180^0\times \dfrac{3}{2}

                                   = 270°

6 0
3 years ago
Air passing over an airplane's wing travels ____________________, and therefore exerts ____________________ pressure than air tr
Aleksandr [31]
<span>c. faster, less

is the answer
</span>
6 0
3 years ago
Read 2 more answers
How do the processes of weathering, erosion, and deposition affect the ecoregions of Texas? Give a specific example of how each
NISA [10]

Answer:

Weathering, erosion, and deposition from the terrestrial surface topography and soil characteristics. These processes, for example, have formed a variety of landforms in Texas like beaches, plateaus, mountains, and canyons as well as soil types like fertile soil, clay-rich soil, and sandy soil. The combination of topography, soil, and climatic conditions in an area defines the types of habitats that the area can support this is crucial to ecoregion classification. Ten separate ecoregions occur in Texas including 1) East Texas Pineywoods, 2) Gulf Coast Prairies and Marshes, 3) Oak Woods and Prairies, 4) Blackland Prairie, 5) cross timbers and prairies (6) Rolling Plains, (7) High Plains, (8) TransPecos, (9) South Texas Plains, (Brush Country), and (10) Edwards Plateau. Such ecoregions are named for the major types of habitats topographical features (e.g. Edwards Plateau) present in their areas. The weathering, erosion, and deposition of each of these ecoregions have an important influence.

5 0
3 years ago
What is the speed of a wave with a frequency of 6 Hz and a wavelength of 12 m? No links
myrzilka [38]

72 m/s

Explanation:

Given,

Frequency ( f ) = 6 Hz

Wavelength ( λ ) = 12 m

To find : -

Speed ( v ) = ?

Formula : -

v = f x λ

v

= 6 x 12

= 72 m/s

Therefore,

the speed of a wave with a frequency of 6 Hz and a wavelength of 12 m is 72 m/s.

7 0
3 years ago
Other questions:
  • A sheet of gold leaf has a thickness of 0.125 micrometer. A gold atom has a radius of 174pm. Approximately how many layers of at
    11·1 answer
  • Which one of the following lines best illustrates personification?
    7·2 answers
  • A taiga biome is DIFFERENT from a tundra biome because it has
    6·2 answers
  • The product of 14 and a cubed
    10·2 answers
  • What is the frequency of 20 mm microwaves? A) 100 MHz B) 400 MHz C) 15 GHz D) 73 GHz E) 98 GHz
    5·1 answer
  • Tyler has learned that potential energy is energy stored. Tyler's teacher asks the students to come up with a demonstration of p
    7·2 answers
  • PLEASE HELP FAST Five-gram samples of brick and glass are at room temperature. Both samples receive equal amounts of energy due
    12·1 answer
  • ___meaning two' sugar (or saccharide) units in a chain.
    5·1 answer
  • Think of an animal that has a distinctive or unusual body shapes. Describe how its body shape helps its momentum and how momentu
    12·1 answer
  • Two cylinders contain the same ideal gas and have the same volume. If the gas molecules in cylinder B have twice the average kin
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!