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
Lyrx [107]
2 years ago
13

A crossbow is fired horizontally off a cliff with an initial velocity of 15 m/s. If the arrow takes 4s to hit the ground, what i

s the range of the projectile?
Physics
1 answer:
omeli [17]2 years ago
5 0

Answer:

The range of the projectile is 60 meters

Explanation:

To determine the range/distance of the projectile, the formula for velocity is used;

velocity = distance/time

where velocity is 15 m/s

time is 4 seconds

distance is unknown

From the formula above, distance is made the subject and thus

distance = velocity × time

distance = 15 × 4

distance = 60 m

The range of the projectile is 60 meters

You might be interested in
When do phase transitions occur in molecules?
jekas [21]
It occurs when energy is supplied or withdrawn :)
5 0
3 years ago
Two loudspeakers placed 8.0 m apart are driven in phase by an audio oscillator whose frequency range is 2.2 kHz to 2.9 kHz. A po
My name is Ann [436]

Answer:

The answer to the question is 2.2khz

Explanation:

<em>Let z₁ = 5.4m</em>

<em>Let z₂ = 4.6m</em>

<em>The path difference Δz = z₁-z₂ = 5.4 - 4.6 = 0.8m</em>

<em>For the interference= Δz λ, 2λ, 3λ......</em>

<em>The wavelength λ = 0.8m</em>

<em>The speed of sound v = 344m/s</em>

<em>The frequency f = v/λ = 344/0.8 = 430hz</em>

<em>Now,</em>

<em>f₁ =f, f₂= 2f, f₃ = 3f, f₄= 4f, f₅ =5f which is,</em>

<em>f₁ =f = 430Hz, f₂=2f =860Hz, f₃ =3f =1290Hz f₄ =4f =1720Hz and f₅=5f =2150Hz</em>

<em>f5 = 2120Hz = 2.200Hz </em>

<em>we will convert to two significant figures =2.2kHz</em>

<em> </em>

8 0
3 years ago
What is the best reason for having a strong hypothesis?
Elena-2011 [213]

Answer:

the answer is C

Explanation:

i did this

7 0
2 years ago
Identify the statement below that is true about a type of stress.
Sunny_sXe [5.5K]

1-D Eustress is a positive response

2-B resistance

3-A Imagine you are doing your gymnastics

6 0
3 years ago
Read 2 more answers
Explain what nuclear fusion is in the role it plays in Stars. DO NOT LOOK UP ANSWERS​
Aloiza [94]

Answer:

Stars are powered by nuclear fusion in their cores, mostly converting hydrogen into helium. The production of new elements via nuclear reactions is called nucleosynthesis. A star's mass determines what other type of nucleosynthesis occurs in its core (or during explosive changes in its life cycle).

8 0
3 years ago
Other questions:
  • A perfect cube has a width of 2cm. What is the cubes volume
    14·2 answers
  • If the tension is 300 N, what is the difference in the speed of a wave traveling from one wire to the other?
    11·1 answer
  • What are the units for electric current
    8·1 answer
  • . Two buses depart from Chicago, one going to New York and one to San Francisco. Each bus travels at a speed of 30 m/s. Do they
    12·1 answer
  • Which scientist invented a model of the atom that most closely resembles the modern electron cloud model
    9·1 answer
  • If water is leaking from a certain tank at a constant rate, is it leaking at a rate that is greater than 12 liters per hour?(1 l
    11·1 answer
  • How many atoms of hydrogen are in vitamin B
    8·1 answer
  • You spray your sister with water from a garden hose. The water is supplied to the hose at a rate of 0.111 liters per second and
    14·2 answers
  • Why it is easier to remove a 2p electron from an oxygen atom than from a nitrogen atom?
    9·1 answer
  • (For example, if you used a lunch meat that claimed to be 97% fat-free, were just 3% of its calories provided by fat?) If the ma
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!