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
SVETLANKA909090 [29]
3 years ago
6

For a flourish at the end of her act, a juggler tosses a single ball high in the air. She catches the ball 3.2 s later at the sa

me height from which it was thrown. What was the initial upward speed of the ball?
Physics
1 answer:
MAXImum [283]3 years ago
6 0

Answer:

15.68 m/s

Explanation:

Given that,

She catches the ball 3.2 s later at the same height from which it was thrown.

When it reaches the maximum height, its height is equal to 0.

It will move under the action of gravity.

t=\dfrac{2u}{g}

2 here comes for the time of ascent and descent.

So,

u=\dfrac{tg}{2}\\\\u=\dfrac{3.2\times 9.8}{2}\\\\u=15.68\ m/s

So, the initial upward speed of the ball is 15.68 m/s.

You might be interested in
Which one of the following describes the motion of the person between points r and s​
tatyana61 [14]

Answer:

IDRK

Explanation:

So yeah that is that

3 0
4 years ago
Read 2 more answers
Which set of terms best defines what affects kinetic energy and potential energy, respectively? Choose one best answer
bulgar [2K]

Answer:

Velocity, height

Explanation:

6 0
3 years ago
Funding has little influence on the number of researchers working on a given project.
tatiyna
Hello There!

The most accurate statement is B.

Hope This Helps You!
Good Luck :) 
3 0
3 years ago
Read 2 more answers
A spy satellite uses a telescope with a 1.7-m-diameter mirror. It orbits the earth at a height of 180 km.
WINSTONCH [101]

Answer: the minimum spacing that must be there between two objects on the earth's surface if they are to be resolved as distinct objects by this telescope 6.45 cm

Explanation:

Given that;

diameter of the mirror d = 1.7 m

height h = 180 km = 180 × 10³ m

wavelength λ = 500 nm = 5 × 10⁻⁹ m

Now Angular separation from the peak of the central maximum is expressed as;

sin∅= 1.22 λ / d

sin∅ = (1.22 × 5 × 10⁻⁹) / 1.7

 sin∅ = 3.588 × 10⁻⁷

we know that;

 sin∅  = object separation / distance from telescope

object separation =   sin∅ × distance from telescope

object separation = 3.588 × 10⁻⁷  × 180 × 10³

object separation =6.45 × 10⁻² m

then we convert to centimeter

object separation = 6.45 cm

Therefore the minimum spacing that must be there between two objects on the earth's surface if they are to be resolved as distinct objects by this telescope 6.45 cm

5 0
3 years ago
What rock makes up the majority of the mares?
zzz [600]
Igneous rock makes up the majority of the mares. Because of volcanic eruption.
6 0
3 years ago
Read 2 more answers
Other questions:
  • The height, h , in meters of a dropped object after t seconds can be represented by h ( t ) = − 4.9 t 2 + 136 . What is the inst
    6·1 answer
  • What is the major outcome of evolution
    8·2 answers
  • What is the total number of neutrons in an atom of an element that has a mass number of 19 and an atomic number of 9?
    11·1 answer
  • The sixth harmonic of a 70 cm long guitar string has a frequency of 557.14 Hz. What is the velocity of sound in the guitar strin
    8·1 answer
  • What is the equivalent resistance of a circuit that contains two 50.00
    13·2 answers
  • The universe could be considered an isolated system because
    13·2 answers
  • 1. A força de atração eletrostática é responsável pela união dos íons, onde cargas elétricas de sinais opostos se atraem. Faland
    10·1 answer
  • Enter a range of values for x.<br> a<br> a<br> 3x-90 930<br> 26<br> 27
    7·2 answers
  • True or False : Waves lose most of their energy when traveling across the ocean.
    11·2 answers
  • Which benefit outweighs the risks in the technological design of headphones?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!