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
Zina [86]
3 years ago
13

A space probe on the surface of mars sends a radio signal back to earth,a distance of 7.19 ×10⁷ km. Radio travel at the speed of

light (3.00 ×10⁸ m/s). How many seconds does it take for the signal to reach the earth?
Chemistry
1 answer:
lys-0071 [83]3 years ago
6 0

Answer:

240 seconds

Explanation:

Data Given:

Distance Radio travel to earth = 7.19 ×10⁷ km

Speed of this radio signal = 3.00 ×10⁸ m/s

Solution:

First convert Km to m

1 km = 1000 m

7.19 ×10⁷ km = 7.19 ×10⁷ x 1000 = 7.19 × 10¹⁰m

Formula used to calculate time

            Speed (S) = distance (d) / time (t)

rearrange above equation for time

            time (t) = distance (d) / Speed (S) . . . . . . . . .(1)

Put values in equation 1

            time (t) = 7.19 × 10¹⁰/ 3.00 ×10⁸ m/s

            time (t) = 240 s

So 240 seconds it take for the signal to reach the earth

You might be interested in
What happens to the potassium atom when it reacts with the chlorine atom? What is the electron configuration of the potassium af
hodyreva [135]

Answer:

See explanation

Explanation:

Potassium is a metal. Remember that metals are electropositive in nature. This implies that they give out electrons when they undergo ionic bonding with nonmetals.

Chlorine is a nonmetal. So the bond between chlorine and potassium is ionic.  Potassium gives out one electron to chlorine and the both ions now attain a stable octet.

The electronic configuration of potassium is [Ar]4s1. After giving out an electron to chlorine in an ionic bond, its electronic configuration is now [Ar].

3 0
2 years ago
Compare the distance between the molecules of a gas in a very small container with the distance between the molecules of the sam
kvv77 [185]
Gases take the shape of their container. When you have a large container, the spaces between molecules (particles) can be further apart than if they were close together. In small containers, the particles are forced to be closer together, or compressed.

Think of it like a pep rally in a gym v.s. a classroom. In the gym, everyone has a bit of wiggle room. With the same number of people in a classroom, everyone would need to be packed in there. This can also explain why a smaller pot over boils from steam before a larger one does, even if the amount of water is the same.
6 0
3 years ago
6. What is the mass of the object if the net force acting on it was 356 N and the acceleration rate
Marina86 [1]

The mass of an object with a net force of 356N and an acceleration rate of 4m/s² is 89kg.

<h3>How to calculate mass?</h3>

The mass of an object can be calculated using the following formula:

F = ma

Where;

  • F = force (N)
  • m = mass (kg)
  • a = acceleration (m/s²)

m = F/a

m = 356/4

m = 89kg

Therefore, the mass of an object with a net force of 356N and an acceleration rate of 4m/s² is 89kg.

Learn more about mass at: brainly.com/question/19694949

8 0
2 years ago
Sodium nitrate is used in fertilizers, explosives, and glass manufacturing. Give the formula for this compound
krek1111 [17]

Explanation:

The molecular formula for Sodium Nitrate is NaNO3. The SI base unit for amount of substance is the mole. 1 grams Sodium Nitrate is equal to 0.011765443644878 mole.

7 0
2 years ago
Can physical weathering cause snow and pressure
tatyana61 [14]

Answer:

Explanation:

yes

6 0
3 years ago
Other questions:
  • What is the main chemical compound cells use for energy?
    12·1 answer
  • Which type of orbitals overlap to form the sigma bond between c and cl in ch3cl?
    8·1 answer
  • Who discovered Chemical Energy?
    11·2 answers
  • For which of the following processes would there be a decrease in entropy?
    13·1 answer
  • Explain why two liters of hydrogen gas and one liter of oxygen gas react to form two liters of water, when the pressures and tem
    14·1 answer
  • Which statement is true with respect to the investigation? The student investigated only the physical properties of lead. The st
    12·2 answers
  • 17 moles of oxygen is equal to
    11·1 answer
  • Describe two physical properties of matter and how those properties are measured.
    5·1 answer
  • 3 If methane burns in a poor supply of air it will give carbon
    5·1 answer
  • A) State and explain three ways by which plants protect themselves from danger.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!