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
antoniya [11.8K]
3 years ago
6

A person throws a baseball from height of 7 feet with an initial vertical velocity of 50 feet per second. Use the vertical motio

n model, h = -16t squared + vt + s, where v is the initial velocity in feet per second and s is the height in feet, to calculate the amount of time the baseball is in the air before it hits the ground. Round your answer to the nearest tenth if necessary.
Time in air:_____ seconds
Physics
2 answers:
Ostrovityanka [42]3 years ago
8 0

Answer: 3.3 seconds

Explanation:

I just did it

vagabundo [1.1K]3 years ago
6 0

Answer:33s

Explanation:

You might be interested in
Four vehicles approach an intersection with a 4 way stop at the same time. Car B is ahead of Car A and both are in the same lane
garik1379 [7]

Answer: car D

Explanation:

4 0
3 years ago
A 0.454-kg block is attached to a horizontal spring that is at its equilibrium length, and whose force constant is 21.0 N/m. The
mestny [16]

Answer:

a. Δx = 2.59 cm

Explanation:

mb = 0.454 kg , mp = 5.9 x 10 ⁻² kg , vp = 8.97 m / s , k = 21.0 N / m

Using momentum conserved

mb * (0) + mp * vp = ( mb + mp ) * vf

vf = ( mp / mp + mb) * vp

¹/₂ * ( mp + mb) * (mp / mp +mb) ² * vp ² = ¹/₂ * k * Δx²

Solve to Δx '

Δx = √ ( mp² * vp² ) / ( k * ( mp + mb )

Δx = √ ( ( 5.9 x 10⁻² kg ) ² * (8.97  m /s) ²  / [ 21.0 N / m * ( 5.9 x10 ⁻² kg + 0.454 kg ) ]

Δx = 0.02599 m  ⇒ 2.59 cm

8 0
3 years ago
The diver on the diving board is 10 meters high and has a mass of 0.050kg, what is his GPE?
sveta [45]

Answer:

<h2>4.9 J</h2>

Explanation:

The gravitational potential energy of a body can be found by using the formula

GPE = mgh

where

m is the mass

h is the height

g is the acceleration due to gravity which is 9.8 m/s²

From the question we have

GPE = 10 × 9.8 × 0.05

We have the final answer as

<h3>4.9 J</h3>

Hope this helps you

6 0
3 years ago
What were the patterns that people saw in the sky long ago?
Lena [83]
Long time ago, people saw the constellations as patterns in the sky.  They names these patterns and tell stories about them. What people saw laong time ago are just mere patterns which forms animals and shapes.  We got the names of our constellations from the Greeks who named the constellations after the mythological heroes and mythological legends.
7 0
3 years ago
Read 2 more answers
26. The speed of light in a certain medium is
horrorfan [7]

The number we need in order to answer the question belongs in the space between the words "is" and "of".  You left that blank blank, so there really isn't any question here to answer.

HOWEVER ... the refractive index of a medium can never be less than 1.0 , so we know for sure that <em>choice-a can't be</em> the correct answer.

6 0
3 years ago
Other questions:
  • when water in a brook or system of pipes flows from a wide region to a narrow region, the speed of water in the narrow region is
    12·1 answer
  • What unit is electronegativity measured in?
    5·1 answer
  • The sum of potential and kinetic energies in the particles of a substance is called energy. True or False
    9·1 answer
  • A 62 kg astronaut is space-walking outside the space capsule and is stationary when the tether line breaks. As a means of return
    10·2 answers
  • When all of the magnetic domains line up on their own, the material is called ____________________.
    7·2 answers
  • Fr-ee p-o-i-n-t-s is biden bad yes or no and tell me why
    10·2 answers
  • A digital stop-clock measures time in minutes and seconds.
    13·1 answer
  • I need help please will mark brainliest
    7·1 answer
  • P(A/B) - P(ANB)<br> P(B)<br><br> P(Girl|Sophomore)
    9·1 answer
  • What is the frequency of blue light that has a wavelength of 450 nm?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!