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
NeTakaya
3 years ago
6

Why are Murcury, venus, earth and mars called the "terrestrial" planets?

Physics
1 answer:
Fittoniya [83]3 years ago
5 0

Mercury, Venus, Earth, and Mars are considered terrestrial planets because those planets are mainly composed of metal or rock and are closest to the sun.

You might be interested in
An orbiting satellite can become charged by the photoelectric effect when sunlight ejects electrons from its outer surface. Sate
Rufina [12.5K]

Answer:

the longest wavelength of incident sunlight that can eject an electron from the platinum is 233 nm

Explanation:

Given data

Φ = 5.32 eV

to find out

the longest wavelength

solution

we know that

hf = k(maximum) +Ф   ...............1

here we consider k(maximum ) will be zero because photon wavelength max when low photon energy

so hf = 0

and hc/ λ = +Ф

so λ = hc/Ф  ................2

now put value hc = 1240 ev nm and Φ = 5.32 eV

so hc = 1240 / 5.32

hc = 233 nm

the longest wavelength of incident sunlight that can eject an electron from the platinum is 233 nm

8 0
3 years ago
If the electrical field in some region or space is zero, does that imply that there is no electrical charge in that region?
mrs_skeptik [129]
No
It means the resultant electrical charges had canceled each other out so there is no field to be sensed .
7 0
3 years ago
A 1000.kg car moving at north at 100. km/hr brakes to a stop in 50. m within a uniform acceleration. what are magnitude and dire
Marianna [84]

Answer:

Force=7.71KN in the opposite direction

Explanation:

Given the mass of the car(M)=1000Kg

The initial speed of the car(u)=100km/hr

we know that 1km/hr=5/18 m/sec

100km/hr=100*5/18 m/sec=27.77m/sec

the distance travelled before it stops (s)=50m

let the acceleration of the car be a

The final velocity of the car is 0.

we know that  v^{2}-u^{2}=2as

0^{2}-27.77^{2}=2(-a)(50)

a=7.712m/sec^{2}

We know that F=Ma

F=1000* 7.712=7712N=7.71KN

6 0
3 years ago
What is the wavelength of a wave?
PIT_PIT [208]
I know for a fact the answer is D. the distance traveled by the wave during one full cycle
6 0
3 years ago
Read 2 more answers
What simple machine can be described as a shaft that is attached to the center of a wheel?
charle [14.2K]
"Wheel & Axle" <span>can be described as a shaft that is attached to the center of a wheel

Hope this helps!</span>
4 0
3 years ago
Other questions:
  • In an RLC series circuit that includes a source of alternating current operating at fixed frequency and voltage, the resistance
    6·1 answer
  • A portable music player, operating with four 1.5 V cells connected in series, provides a resistance of 15 000 Ω. What amount of
    10·1 answer
  • Please help me these are overdue for me!
    5·1 answer
  • Using Hooke's law, Fspring=kΔx, find the elastic constant of a spring that stretches 2 cm. when a 4 Newton force is applied to i
    7·1 answer
  • An Air Force plane lands with a velocity of 125 m/s and accelerates at a maximum rate of -6.5 m/s^2.
    14·1 answer
  • Help help help please , i will give brainliest
    5·2 answers
  • Which of these abiotic factors is most likely the reason some plants cannot live very close to the ocean?
    12·1 answer
  • A dog walks 14 meters to the west and then 20 meters back
    15·1 answer
  • Potential energy question
    13·1 answer
  • Convection takes place because
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!