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
kkurt [141]
4 years ago
15

If a ball is thrown straight up, where is its acceleration the greatest

Physics
1 answer:
Lapatulllka [165]4 years ago
3 0

It has acceleration while it's in your hand and you're in the process of flinging it, but we don't know how much.

It has acceleration ... pretty big ... during the short time between hitting the first blade of grass and coming to rest in the dirt, at the end of its trip.

From the time it leaves your hand until it hits the grass on the way down, its has the same constant, continuous acceleration ... 9.8 m/s^2 downward, the acceleration of gravity.

The greatest acceleration is probably at the end of the trip, after it hits the grass, and its speed drops to zero in a tiny fraction of a second.

You might be interested in
What kind of circuit is the one shown below?
vovikov84 [41]

That's a <em>parallel</em> circuit. <em>(B)</em>

When current from Point-A reaches the 3-way intersection just to the right of Point-B, it has to make a choice:  Either turn left, go through B, and light the lower bulb, or go straight and light the upper bulb.

A circuit that has any "decision" points in it is a parallel circuit.  What happens in the real world is:  The current splits up.  Some of the current that reaches the intersection turns left toward Point-B, and the rest of it goes straight up.

A series circuit is one in which there's only one possible path all the way around.  There are no intersections of more than 2 roads, and no electron ever has to decide which way to flow.

An open circuit is one in which there's a break somewhere along the line and electrons can't jump across it.  It's like a railroad where a big piece is cut out of the track somewhere.  So no trains can travel on that route, and there's no current flowing anywhere in the circuit.

I'm not so sure about a "combination" circuit.  I guess you could give that name to a complicated circuit that has some series parts and some parallel-parts.  Personally, I'd call that a "series-parallel" circuit.  But it really doesn't matter right now.  Whatever the word means, the circuit in the picture is definitely not a "combination" circuit.

7 0
3 years ago
Read 2 more answers
The frequency of a wave is 250hz. What is the period
antoniya [11.8K]

Answer:

Hope it helps for you :)))))

8 0
3 years ago
Why is pluto not a planet?
mihalych1998 [28]
Pluto revolves around a star instead of our SUN. So, it's an "Exo-planet" rather than a Planet. It has declared in 2006 by the scientists.

Hope this helps!
3 0
3 years ago
Read 2 more answers
A tank contains 0.568 mol of molecular nitrogen (N2). Determine the mass (in grams) of nitrogen that must be removed from the ta
Marizza181 [45]

Answer:

\Delta M = 7.812 gm

Explanation:

we know that for ideal gag we have

pV =nRT

Since volume, gas constant R and T are constant, so we have

\frac{p}{n]  = constant

\frac{44.7}{0.568} =\frac{22.8}{n}

n = 0.289 mole

hence mass removed\Delta M =( 0.568 - 0.289)*( molecular\ weight\ of \ nitrogen)

\Delta M = (0.568 - 0.289) *28 gm

\Delta M = 7.812 gm

8 0
4 years ago
Halley's comet orbits the sun roughly once every 76 years. It comes very close to the surface of the Sun on its closest approach
Licemer1 [7]

Answer:

r1 = 5*10^10 m , r2 = 6*10^12 m

v1 = 9*10^4 m/s

From conservation of energy

K1 +U1 = K2 +U2

0.5mv1^2 - GMm/r1 = 0.5mv2^2 - GMm/r2

0.5v1^2 - GM/r1 = 0.5v2^2 - GM/r2

M is mass of sun = 1.98*10^30 kg

G = 6.67*10^-11 N.m^2/kg^2

0.5*(9*10^4)^2 - (6.67*10^-11*1.98*10^30/(5*10^10)) = 0.5v2^2 - (6.67*10^-11*1.98*10^30/(6*10^12))

v2 = 5.35*10^4 m/s

3 0
3 years ago
Other questions:
  • A juggler throws a bowling pin into the air with an initial velocity . Another juggler drops a pin at the same instant.
    10·1 answer
  • The engine oil at 150 degree Celsius is cooled to 80 degree Celsius in a parallel flow heat exchanger by water entering at 25 de
    9·1 answer
  • How much gas is there in 100cm3 of air?
    12·2 answers
  • In which of the following scenarios is the great amount of work accomplished?
    14·1 answer
  • Steel ball is dropped onto a hard floor from a height of 1.50 m and rebounds to a height of 1.45 m.
    6·1 answer
  • 2. Two long parallel wires each carry a current of 5.0 A directed to the east. The two wires are separated by 8.0 cm. What is th
    8·1 answer
  • Sally can run 3 flights of stairs in 25 seconds. Each stair is 0.15 meter tall and there are 15 stairs in one flight. Sally has
    15·1 answer
  • 50 km/h [N 65° W] - 30 km/h [S 35° W]<br><br> Use sine and cosine laws to calculate
    8·1 answer
  • A harmonic wave on a string is described by
    10·1 answer
  • Pls help I give brainliest: What is physical weathering?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!