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
dmitriy555 [2]
3 years ago
14

Concept Simulation 2.3 provides some background for this problem. A ball is thrown vertically upward, which is the positive dire

ction. A little later it returns to its point of release. The ball is in the air for a total time of 7.96 s. What is its initial velocity? Neglect air resistance.
Physics
1 answer:
KATRIN_1 [288]3 years ago
8 0

Answer:

39 m/s

Explanation:

Hi!

The equation of motion of the ball is:

y(t) = y_0 + v_{0y}t-(1/2)(9.8 m/s^2)t^2

Where y_0 is the initial horizontal position, which we will take as zero.

v_0y is the initial velocity and t is the time

To find the initial velocity we will set y(7.96s) = 0

0 = v_{0y} (7.96 s)-(4.9 m/s^2)(7.96 s)^2\\v_{0y} =(4.9 m/s^2) (7.96 s)\\v_{0y}=39.004 m/s

You might be interested in
Two blocks are connected as shown in the diagram below. Assume that the ramp is frictionless. Draw the force diagram for the blo
cluponka [151]

Answer:

diagram: see image, x-component: 84.3 N, acceleration: 4.38 m/s^2

Explanation:

(see image for further explanation)

5 0
3 years ago
Which quantity is directly related to the temperature of a substance?
vovikov84 [41]
The answer is A. The kinetic energy
4 0
3 years ago
Read 2 more answers
The electromagnetic wave that CT scans are based on is called a
kherson [118]
X-ray)
because Electromagnetic waves are in act
6 0
3 years ago
A softball has a mass of 0.18 kg. What is the gravitational force on Earth due to the ball, and what is the Earth's resulting ac
alexgriva [62]

Answer:F=1.7802

Explanation:

Since we've been given the mass to be .18kg,we are asked to find the Force of which the formulae is

F=ma where f-force,m-mass and a-acceleration due to gravity

So we can just substitute

F-?.m=.18 and a9.89

F=.18×9.89

F=1.7802N

6 0
2 years ago
Symptoms of excessive stress include all of the following EXCEPT:
sweet-ann [11.9K]

Answer:

Symptoms of excessive stress include all of the following EXCEPT: increased energy level.

6 0
2 years ago
Other questions:
  • A company randomly selects 100 light bulbs every day for 40 days from its production process. If 600 defective light bulbs are f
    13·2 answers
  • A rock is dropped from a third story window to the ground below. Assuming air resistance can be ignored, as it falls: a) only it
    10·1 answer
  • An organ pipe is open at both ends. It is producing sound
    13·1 answer
  • Your toaster has a power cord with a resistance of 2.2x10^−2 Ω connected in series with a 9.7 Ω nichrome heating element. The po
    6·1 answer
  • An object of mass 5 kilograms is acted upon by the forces F and F2 as shown.
    5·1 answer
  • 4. A steel cable spanning a river is 220.000 m long when the temperature is 30.°C.
    9·1 answer
  • The angular velocity of an object is given by the following equation: ω(t)=(5rads3)t2\omega\left(t\right)=\left(5\frac{rad}{s^3}
    6·1 answer
  • Write an essay about Paralympic and Special Olympic Essay 100 points
    8·1 answer
  • A) Give 3 examples of forces that are pulls and 3 examples that are pushes. b) For each example you give, state an approximate v
    7·1 answer
  • If a body is accelerating m change the velocity of 2 metre per second square when it was acted by five hundred Newton of force t
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!