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
Andrej [43]
3 years ago
8

He diagram shows a person holding a bow and arrow.

Physics
2 answers:
olganol [36]3 years ago
5 0

Answer:

B Relesing the string

Explanation:

got it right on edge

Murrr4er [49]3 years ago
5 0

Answer:

b .

          :)    :)    :)

Explanation:

You might be interested in
If a force of 10 N acts on an object and an additional force of 6 N acts on the object in the same direction. What will be the n
Schach [20]

Answer: The 1st one is B. I'm pretty sure the 2nd one is A. and the 3rd one is D.

Explanation: I hope this helped, although I'm not sure for the second one

4 0
2 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=%7B%5Chuge%5Cfcolorbox%7Bblue%7D%7Bblack%7D%7B%5Cpink%7B%5C%3A%5C%3A%5C%3A%5C%3A%5C%3A%5C%3A%5
kumpel [21]

the branch of optics that studies interference, diffraction, polarization, and other phenomena for which the ray approximation of geometric optics is not valid.

3 0
2 years ago
a hot piece of copper is placed in an insulated cup. what is the final temperature of the water and copper?
slavikrds [6]

Answer:

Option C. 30°C.

Explanation:

The following data were obtained from the question:

Mass of water (Mw) = 0.5 Kg

Specific heat capacity of water (Cw) = 4.18 KJ/Kg°C

Initial temperature of water (Tw1) =

22°C

Change in temperature (ΔT) = T2 – Tw1 = T2 – 22°C

Mass of copper (Mc) = 0.5 Kg

Specific heat capacity of copper (Cc) = 0.386 KJ/kg°C

Initial temperature of copper (Tc1) = 115°C

Change in temperature (ΔT) = T2 – Tc1 = T2 – 115°C

Final temperature (T2) =..?

Note: Both the water and the piece copper will have the same final temperature and the heat will be zero since the water will cool the piece of copper.

Thus, we can determine the final temperature of the water and copper as follow:

Q = MwCwΔT + McCcΔT

0 = 0.5 x 4.18 x (T2 – 22) + 0.5 x 0.386 x (T2 – 115)

0 = 2.09 (T2 – 22) + 0.193 (T2 – 115)

0 = 2.09T2 – 45.98 + 0.193T2 – 22.195

Collect like terms

2.09T2 + 0.193T2 = 45.98 + 22.195

2.283T2 = 68.175

Divide both side by the coefficient of T2 i.e 2.283

T2 = 68.175/2.283

T2 = 29.8 ≈ 30°C

Therefore, the final temperature of water and copper is 30°C.

8 0
3 years ago
Does the lattice energy of an ionic solid increase or decrease as the charges or sizes of the ions increase?
alexandr1967 [171]

Answer:

Explanation:

Lattice energy is the energy required to separate one mole of an ionic solid compound into its components gaseous cations and anions.

Due to increase in size of the ions, the lattice energy decreases while the lattice energy increases as the charge of the ions increases.

When the size increase, the distance between the nuclei also increase leading a decrease the force of attraction between the nuclei

7 0
3 years ago
In which direction does a bag at rest move when a force of 20 newtons is applied from the right?
worty [1.4K]

Answer:

in the direction of the applied force

Explanation:

8 0
3 years ago
Other questions:
  • Ajar can hold 60 mL of liquid. It is 10 cm high and 2 cm wide. The length of the jar is:
    12·2 answers
  • Positive and negative charges are attracted to one another. The phenomenon of static electricity requires a separation of positi
    7·2 answers
  • The earth takes 1 year to revolve around the sun at 1 A.U. distance (an astronomical unit = 93,000,000 miles). If a planet were
    13·1 answer
  • What was the measurement of the wavelength and amplitude respectively?
    7·1 answer
  • Please help on this one? PLEASE.
    15·1 answer
  • Definition: In any chemical process, matter is neither lost nor gained.
    14·1 answer
  • Pedro uses a bar magnet to pick up a nail. He then touches the tip of the nail to some staples.
    11·2 answers
  • In what types of media would sound waves travel fastest
    6·1 answer
  • A space station consists of three modules, connected to form an equilateral triangle of side length 82.0 m. Suppose 100 people,
    11·1 answer
  • A stone of weight 10N falls from the top of a 250m high cliff. a) Calculate how much work is done by the force of gravity in pul
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!