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
enot [183]
3 years ago
8

A ball is thrown in the air with a vertical velocity of 12 m/s.

Physics
2 answers:
melamori03 [73]3 years ago
4 0
The answer to the question is gonna be A
Ipatiy [6.2K]3 years ago
4 0

Answer:

a) 1.22 s

b) 6 m/s

c) 7.35 m

Explanation:

Given:

v₀ = 12 m/s

a = -9.8 m/s²

a) Find t when v = 0 m/s.

v = at + v₀

(0 m/s) = (-9.8 m/s²) t + (12 m/s)

t = 1.22 s

b) v_avg = ½ (v₀ + v)

v_avg = ½ (12 m/s + 0 m/s)

v_avg = 6 m/s

c) Find Δx.

v² = v₀² + 2aΔx

(0 m/s)² = (12 m/s)² + 2 (-9.8 m/s²) Δx

Δx = 7.35 m

You might be interested in
If given a device that has unknown circuitry, and you measure that the voltage across the device leads the voltage across a resi
shusha [124]

There may be an improper voltage in the device.                                                                                                                                                              

<u>Explanation</u>:

  • Given the device has unknown circuitry and the voltage across the device crosses the voltage across the resistor at 500 Hz. In this device, the current flow is not correct. It is improper.
  • The elements in the device are ammeter, capacitor, inductor, voltmeter, and battery. The components in the device may not be connected properly. This is due to the improper flow of current and condition of the voltmeter.
  • So these are the type of elements in the device.

7 0
3 years ago
An old clock has a spring that must be wound to make the clock hands move. Which statement describes the energy of the spring an
topjm [15]

Answer:

c

Explanation:

neither the spring or hands are in the action of movemnet

8 0
3 years ago
If you added 5 x more mass into a wheelbarrow, how much greater would
aev [14]

Answer:

5 x biger

Explanation:

becuze if it ia 5× more it nids 5×more force to be =

7 0
3 years ago
A 1056-hertz tuning fork is struck at the same time as a note on the piano and you hear 2 beats/second. You tighten the piano st
elena-14-01-66 [18.8K]

Answer:

The frequency of the piano string is <em>1059 Hz</em>.

Explanation:

The frequency beat (fb), 2 beats/second, is the absolute difference between the frequency of the tuning fork (1056 Hz) and the frequency of the piano string.

As the piano string gets tightened, the frequency beat becomes 3 beats/second.

Therefore,

fb = fb = fpiano - ftuning fork\\ 3 Hz=fpiano-1056Hz\\ fpiano=1056Hz+3Hz\\ fpiano=1059Hz

6 0
3 years ago
Iron filings were mixed together with salt crystals. What unique property of iron would be BEST to separate the filings from the
Mashcka [7]
The melting point. So d is ur answer. The color and texture of both is the same. They sont have magnetism. So the only logical one is melting point.

Please vote brainliest
6 0
3 years ago
Read 2 more answers
Other questions:
  • 3. A bus accelerates at 25 m/s/s. This allows the bus to speed up from 16 m/s to 172 m/s. How long
    7·1 answer
  • Does fire use energy??
    10·1 answer
  • On a map of average annual temperature, why are the lower latitudes so much warmer than the higher latitudes?
    8·2 answers
  • Could a mixture be made up of only elements and no compounds?
    11·2 answers
  • Suppose a zero-resistance rod slides to the right on two zero-res a distance of 0.330 m. The rails are connected by a 16 2 resis
    8·2 answers
  • Consider two insulating balls with evenly distributed equal and opposite charges on their surfaces, held with a certain distance
    15·1 answer
  • H. If the mass of an object is 390 g and its volume is 50 cm?, then its density is ....... g/cm' or ....... kg/m”.
    15·1 answer
  • Pls ❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤​
    11·1 answer
  • Please help me - i beg u
    11·1 answer
  • How far did an object travel if they rode a bike at 15m/s for 5 seconds?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!