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
snow_tiger [21]
2 years ago
10

A space rover weighs less on Mars than it does on Earth. Which statement explains this difference? A. The gravitational constant

is smaller on Mars than on Earth. B. The mass of Mars is less than the mass of Earth. O C. The rover is farther from Earth. D. The rover has less mass on Mars. .​
Physics
1 answer:
Maksim231197 [3]2 years ago
6 0

Answer:

B. The mass of Mars is less than the mass of Earth.

Explanation:

Mass of an object is the constant anywhere in the universe.

The weight of an object is equal to the gravitational force acting on it.

Weight is given by

W=\dfrac{GMm}{R^2}\\\Rightarrow W=\dfrac{GM}{R^2}m\\\Rightarrow W=mg

where

G = Gravitational constant

M = Mass of Planet

R = Radius of planet

m = Mass of object

g = Acceleration due to gravity

So weight of an object depends on the acceleration due to gravity on that planet. The acceleration due to gravity depends on the mass and radius of the planet.

The weight of the object is less on Mars because mars has less mass compared to Earth.

You might be interested in
Help please
Naddik [55]

Answer:

acid and bases

Explanation:

4 0
2 years ago
_____ have played a major role in altering Earth's atmospheric composition over time.A. TsunamisB. VolcanoesC. HurricanesD. Eart
sammy [17]
I believe the answer is valcanos because they release sulfur in to the air and other chemicals so it willl affect the anispher
4 0
3 years ago
Read 2 more answers
Collapse question part Part 4 (d) What is the unit vector in the direction of the spacecraft's velocity? (Express your answer in
Maksim231197 [3]

Answer:

unit (v) = [ -0.199 i - 0.8955 j + 0.39801 k ]

Explanation:

Given:

                            v =  (-23.2, -104.4, 46.4) m/s

Above expression describes spacecraft's velocity vector v.

Find:

Find unit vector in the direction of spacecraft velocity v.

Solution:

Step 1: Compute magnitude of velocity vector.

                            mag (v) = sqrt ( 23.2^2 + 104.4^2 + 46.4^2)

                            mag (v) = 116.58 m/s

Step 2: Compute unit vector unit (v)

                            unit (v) = vec (v) / mag (v)

                            unit (v) = [ -23.2 i -104.4 j + 46.4 k ] / 116.58

                            unit (v) = [ -0.199 i - 0.8955 j + 0.39801 k ]

7 0
3 years ago
PHYSICAL SCIENCE HELP PLEASE !!!!! Picture below is for question 4
Eva8 [605]

Question 1) excited and moving around a lot.

Question 2) heat

Question 3) specific heat

Question 4) As temperature increases, energy transferred increases.

Hope these answers help!

3 0
3 years ago
How are acceleration and speed related​
Gre4nikov [31]

Answer:

Acceleration is the rate of change of velocity. Usually, acceleration means the speed is changing, but not always. When an object moves in a circular path at a constant speed, it is still accelerating, because the direction of its velocity is changing. Comment on robshowsides's post “Speed is the magnitude of velocity.

Explanation:

hope it helped tee hee

6 0
3 years ago
Read 2 more answers
Other questions:
  • An observer sees a lightning flash from a distant thunder-storm and 12 seconds later hears the sound. if the temperature of the
    9·1 answer
  • Thomas records the masses of several rocks as 7.40 g, 7.85 g, 7.60 g, and 7.40 g. What is the mode of Thomas’s data set?
    14·1 answer
  • A person standing a certain distance from an airplane with four equally noisy jet engines is experiencing a sound level of 145 d
    7·1 answer
  • Is<br>pressure<br>and<br>electric<br>charge<br>a vector<br>quantity? Explain.​
    5·1 answer
  • Determine the position in which a solid cylindrical block of wood of diameter 0.3 m and length 0.4 m will float in water. Take s
    15·1 answer
  • Carbon-14 has a half life of 5730 years. Consider a sample of fossilized wood that when alive would have contained 24g of C-14 i
    14·1 answer
  • What atoms has most mass?<br>​
    12·1 answer
  • Which simple machines make up a wheel barrow
    9·1 answer
  • A rocket that has a mass of 4000 lbm travels at 27,000 ft/sec. What is most nearly its kinetic energy
    12·1 answer
  • The very strong source of radio waves at the center of our galaxy is called.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!