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
FrozenT [24]
3 years ago
7

A mom pushes her 19.3 kg daughter on the swing. If she gives her an initial velocity of 7.5 m/s at the bottom of the swing and t

he swing sits 0.6 m above the ground at it's lowest point, what height does she reach above the ground?
Physics
1 answer:
kiruha [24]3 years ago
3 0

Answer:

3.17333333333? I hope I get it right

Explanation:

..................hello

You might be interested in
Alli was in the park playing on the equipment. she noticed that on the highest slide she slides down
LUCKY_DIMON [66]

Answer:

Is this answer complete????

3 0
3 years ago
Read 2 more answers
point) A circular swimming pool has a diameter of 12 m. The circular side of the pool is 3 m high, and the depth of the water is
Sergio [31]

Answer:

(a) 86.65 J

(b) 149.65 J

Solution:

As per the question:

Diameter of the pool, d = 12 m

⇒ Radius of the pool, r = 6 m

Height of the pool, H = 3 m

Depth of the pool, D = 2.5 m

Density of water, \rho_{w} = 1000\ kg//m^{3}

Acceleration due to gravity, g = 9.8\ m/s^{2}

Now,

(a) Work done in pumping all the water:

Average height of the pool, h = \frac{H + D}{2}

h = \frac{3 + 2.5}{2} = 2.75\ m

Volume of water in the pool, V = \pi r^{2}h = \pi \times 6^{2}\times 2.75 = 311.02\ m^{3}

Mass of water, m_{w} = \frac{\rho_{w}}{V}

m_{w} = \frac{1000}{311.02} = 3.215\ kg

Work done is given by the potential energy of the water as:

W = m_{w}gh = 3.215\times 9.8\times 2.75 = 86.65\ J

(b) Work done to pump all the water through an outlet of 2 m:

Now,

Height, h = 2.75 + 2 = 4.75

Work done,W = m_{w}gh = 3.215\times 9.8\times 4.75 = 149.65\ J

7 0
2 years ago
A 38.5kg man is in an elevator accelerating downward. A normal force of 343n pushes up on him. what is his acceleration?
alexira [117]

Answer:

<h3>The answer is 8.91 m/s²</h3>

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

a =  \frac{f}{m}  \\

f is the force

m is the mass

From the question we have

a =  \frac{343}{38.5}  =  \frac{98}{11}  \\  = 8.909090...

We have the final answer as

<h3>8.91 m/s²</h3>

Hope this helps you

4 0
2 years ago
3. How can we determine the volume of a regular object?
JulsSmile [24]
Length•Width•Height is the answer
4 0
3 years ago
Neil has 3 partially full cans of white pants. they contain 1/3 gallon, 1/5 gallon,and 1/2 gallon of paint About how much paint
Oliga [24]
He has 1 1/30 gallons, or 31/30 gallons, you can find this by setting all the fractions to a common denominator and adding them
7 0
3 years ago
Other questions:
  • Rotary compressors are used primarily in ____. A. large industrial refrigeration and air conditioning systems B. high volume res
    5·1 answer
  • An intercontinental ballistic missile goes from rest to a speed of 6.50 km/s in 60.0 s. In multiples of g, what is its accelerat
    10·1 answer
  • Define dry cell? Pls tell me ASAP!
    8·1 answer
  • Current that moves in one direction from negative to positive. May be created by a battery. Is generally NOT found in U.S. Elect
    12·2 answers
  • 1. ________ is a force that attracts all matter to each other
    6·1 answer
  • The energy an object has by virtue of its position is kinetic energy.<br> True<br> False
    10·1 answer
  • What it the direction of the weight or force of gravity?
    12·1 answer
  • Please help me, will give brainliest if you answer my other questions aswel
    15·2 answers
  • How do positive charges in an electric field move?
    7·1 answer
  • What is the relationship between and experiment and a hypothesis
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!