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
Vika [28.1K]
3 years ago
5

Select the correct answer.

Physics
1 answer:
Simora [160]3 years ago
7 0

Answer:

A. 2.36 Newtons

Explanation:

F = GmM/d²

F = 6.673 x 10⁻¹¹(1)(5.98 x 10²⁴) / (1.3 x 10⁷)²

F = 2.36121...

Very poor question design.

  mass of box... 1 significant digit

        distance... 2 significant digits

mass of earth... 3 significant digits

     value of G... 4 significant digits

Answer precision to 3 significant digits is not justifiable

You might be interested in
How do you spend a dime and get back a penny
topjm [15]
Is your daughter doing this is the same time as I do you like you can
8 0
3 years ago
With thermodynamics, one cannot determine ________. Question 6 options: the speed of a reaction the direction of a spontaneous r
pantera1 [17]

Answer:

A.  the speed of a reaction

Explanation:

The thermodynamic aspect of a reaction will show you the energy needed for a reaction to occur. If the energy difference(ΔG)  is positive, which means the reaction is absorbing energy and it called endothermically. The opposite will be an exothermic reaction that will release energy, which means it doesn't need energy and the energy difference (ΔG) will be negative.  

Thermodynamic can be used to determine a few things of a reaction, like the direction of the reaction, the extent, or temperature in which the reaction is spontaneous. But thermodynamic not used to find the speed of a reaction.

3 0
4 years ago
Why does a glass rod become positively charged when it is rubbed with a silk cloth?
slavikrds [6]
The core has positive charge<span>, the electrons have negative </span>charge. When you are rubbing<span> the </span>glass rod<span> with the </span>silk cloth<span>, electrons are stripped away from the atoms in the </span>glass<span> and transferred to the </span>silk cloth<span>. This leaves the </span>glass rod<span> with more </span>positive<span> than negative </span>charge<span>, so you get a net </span>positive charge<span>.</span>
5 0
3 years ago
How do catalysts speed up reactions<br><br><br><br> please help quickly
MissTica
How do catalysts speed up reactions ?
 

by reducing the amount of energy required for the reaction to occur.  other factors such as <span>catalysts' ability to speed a process are temperature, concentration </span>
8 0
3 years ago
Read 2 more answers
Ann successfully jumped over a 25.5 m-wideriver. Assuming that she started and landed at the same level and was airborne for 2.5
dolphi86 [110]

Answer:

Explanation:

t=Time airborne=2.54 s

R= horizontal range= 25.5 m

From the projectile motion equations we know that:

H=\frac{g*t^{2}}{8}

H=\frac{9.8 \frac{m}{s^{2}} *(2.54s)^{2}}{8}

H=7.9 m

7 0
3 years ago
Other questions:
  • You want to place a mirror at a blind turn on the staircase in your house. Which would be best suited for this purpose?
    11·2 answers
  • What was significant about the discovery of gallium
    14·2 answers
  • Please need help for this one
    12·1 answer
  • What kind of gas is fart
    10·2 answers
  • Can I apply my homework questions about physic?
    7·2 answers
  • The discovery of what element showed the usefulness of Mendeleev’s periodic table?
    11·2 answers
  • What does the atomic number of an atom tell us?
    5·2 answers
  • Particles q1 = -53.0 uc, q2 = +105 uc, and
    7·1 answer
  • A heater has a resistance of 10.0 Ω. It operates on a 12.0 V. What is the current through the resistor?
    11·1 answer
  • Your flight takes you in the path of a large aircraft. in order to avoid the vortices you should fly
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!