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
Mrrafil [7]
3 years ago
5

Which planet is smaller than Earth’s core?

Physics
2 answers:
makvit [3.9K]3 years ago
7 0

Answer:

The answer <em><u>is C. Mars</u></em>. Mars and Mercury are both smaller than Earth's core. Hope this helps you :)

worty [1.4K]3 years ago
4 0

Answer:

C. Mars

Explanation:

Size of a planetary object depends on when it forms and where it forms.

You might be interested in
What percent of $ 40 is $ 32?<br><br>​
kumpel [21]

Answer:

80%

Explanation:

convert fraction ( ratio ) 32/40 answer 80%

4 0
3 years ago
Read 2 more answers
Which of the following graph is used for determining the instantaneous velocity from the slope?
hoa [83]

Answer:

B. x - t graph

Explanation:

A position-time (x-t) graph is a graph of the position of an object against (versus) time.

Generally, the slope of the line of a position-time (x-t) graph is typically used to determine or calculate the velocity of an object.

An instantaneous velocity can be defined as the rate of change in position of an object in motion for a short-specified interval of time. Thus, an instantaneous velocity is a quantity that can be found by measuring the slope of a line that is tangent to a point on the graph.

Hence, the x - t graph also referred to as the position-time graph is used for determining the instantaneous velocity from the slope.

<u>For example;</u>

Given that the equation of motion is S(t) = 4t² + 2t + 10. Find the instantaneous velocity at t = 5 seconds.

Solution.

S(t) = 4t^{2} + 2t + 10

Differentiating the equation, we have;

S(t) = 8t + 2

Substituting the value of "t" into the equation, we have;

S(5) = 8(5) + 2

S(5) = 40 + 2

S(5) = 42 m/s.

5 0
3 years ago
Read 2 more answers
A cylinder containing the air comprises the systemm. Cycle is completed as follows : (i) 82000 N-m of work is done by the piston
Stella [2.4K]

Answer & Explanation:

1 N-m = 1 Joule

So 82 kJ of energy put into the system during (i).

45 kJ of heat leaves the system, so 82 kJ - 45 kJ  = 37 kJ is remaining.

(ii) requires 100 kJ of energy but only 37 kJ is available, so 100 kJ - 37 kJ = 63 kJ of heat energy must be added to the system.

4 0
3 years ago
Fifteen joules of heat are added to a cylinder with a piston. The system uses 7 joules of energy to raise the piston upward. By
r-ruslan [8.4K]

Answer:

8 J

Explanation:

Heat = work + change in internal energy

Q = W + ΔU

15 J = 7 J + ΔU

ΔU = 8 J

4 0
3 years ago
A vector has a magnitude of 82 m
pentagon [3]

The Y-component of the vector is 34.65 m.

<h3>What is a vector?</h3>

Vectors are quantities that have both magnitude and direction.

The Y-component of the vector can be calculated using the formula below.

Formula:

  • Y = rsin∅............. Equation 1

Where:

  • Y = Y-component of the vector
  • r = magnitude of the vector
  • ∅ = angle of the vector to the horizontal.

From the question,

Given:

  • r = 82 m
  • ∅ = 25°

Substitute these given values into equation 1

  • Y = 82(sin25°)
  • Y = 34.65 m

Hence, The Y-component of the vector is 34.65 m.
Learn more about vectors here: brainly.com/question/24855749

7 0
2 years ago
Other questions:
  • A ball is released from a tower at a height of 100 meters toward the roof of another tower that is 25 meters high. The horizonta
    13·1 answer
  • A solid conducting sphere of radius 2.00 cm has a charge of 6.77 μC. A conducting spherical shell of inner radius 4.00 cm and ou
    5·1 answer
  • Kinetic energy is the energy of ______. It increases with mass ______ and _______ .Potential energy is the energy of _______or__
    6·1 answer
  • 14. The inner transition metals are made up two series known as:
    8·1 answer
  • There are stars located in the center bulge of the Milky Way and the spiral arms of the Milky Way. What is the difference betwee
    6·1 answer
  • Which of the following are examples of acceleration?
    6·2 answers
  • PLEASE HELP!!! GIVING BRAINLIEST!! ill also answer questions that you have posted if you answer these correctly!!!! (47pts)
    8·2 answers
  • What it 1 Newton force<br>​
    8·1 answer
  • What does it mean to overcome gravity?
    9·1 answer
  • Describe the relationship between the Law of Conservation of Matter and balancing equations.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!