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
oksian1 [2.3K]
3 years ago
10

NEED HELP PLEASE!!!

Physics
1 answer:
kenny6666 [7]3 years ago
3 0

Answer:

The gravitational potential energy the barbells have at the maximum height, is P.E. = 3680·h J = 1.10 × 10⁴ units

Where;

h = The maximum height to which he lifts the barbells

Explanation:

The given parameters are;

The  amount of work done by the championship lifter in lifting the weight, W = 1.10 × 10⁴ units

The weight of the barbells lifted by the championship lifter, N = 3680 N

The gravitational potential energy, P.E., the barbells had at their maximum height of lift is given as follows;

P.E. = m × g × h

Where;

m = The mass of the barbells;

g = The acceleration due to gravity = 9.8 m/s²

h = The maximum height to which the barbells are lifted by the championship weight lifter

m × g = The weight of the barbells = 3680 N

∴ P.E. = 3680 N × h = 3680·h J

By the conservation of energy principle, work done by the championship weight lifter = The maximum gravitational potential energy gained by the barbell = The gravitational potential energy at the maximum height, P.E.

∴ The gravitational potential energy the barbells have at the maximum height, P.E. = 3680·h J = W = 1.10 × 10⁴ units

You might be interested in
A 2.5-L tank initially is empty, and we want to fill it with 10 g of ammonia. The ammonia comes from a line with saturated vapor
Alex17521 [72]

Answer:

592.92 x 10³ Pa

Explanation:

Mole of ammonia required = 10 g / 17 =0 .588 moles

We shall have to find pressure of .588 moles of ammonia at 30 degree having volume of 2.5 x 10⁻³ m³. We can calculate it as follows .

From the relation

PV = nRT

P x 2.5 x 10⁻³ =  .588 x 8.32 x ( 273 + 30 )

P = 592.92 x 10³ Pa

3 0
3 years ago
Scientists are constantly exploring the universe, looking for new planets that support life similar to the life on
Molodets [167]
The answer would be “B” because humans would need water, protection from radiation so we don’t melt or burn to death lol, and a gaseous atmosphere because we would need oxygen.
6 0
2 years ago
Read 2 more answers
A snail crawls at a speed of 0.0004 m/s. How long will ot take to climb a garden stick 1.6m high?​
tekilochka [14]

4000 seconds

Explanation:

speed = distance / time

0.0004m/s = 1.6m / time

Subject time

time = 1.6 / 0.0004

time = 4000 seconds.

Hope this helps. Mark as brainliest if possible. tks

5 0
3 years ago
What are some resources used to generate electricity in energy stations?
Setler79 [48]

--  Coal
--  Oil
--  Natural gas
--  Falling water
--  Sunlight
--  Nuclear fission of Uranium

3 0
3 years ago
An Argon laser (λ = 5.0×102nm) shines down a silica glass fiber-optic cable with index of refraction 1.46. What is the speed of
Yanka [14]

Answer:

The speed of the laser light in the cable, c_f=2.1\times 10^8\ m/s

Explanation:

It is given that,

Wavelength of Argon laser, \lambda=5\times 10^2\ nm=5\times 10^{-7}\ m

Refractive index, n = 1.46

Let c_f is the speed of the laser light in the cable. The speed of light in a medium is given by :

c_f=\dfrac{c}{n}

c_f=\dfrac{3\times 10^8\ m/s}{1.46}

c_f=2.05\times 10^8\ m/s

or

c_f=2.1\times 10^8\ m/s

So, the speed of the laser light is 2.1\times 10^8\ m/s. Hence, this is the required solution.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Which of these best describes the difference between energy and power? A) Power and energy have nothing in common B) Energy and
    8·1 answer
  • Which waves are longitude waves? Check all that apply.
    12·1 answer
  • A small 12.00 g plastic ball is suspended by a string in a uniform, horizontal electric field. If the ball is in equilibrium whe
    8·1 answer
  • Which one of the following scenarios accurately describes a condition in which resonance can occur?
    6·1 answer
  • Why did the waco tornado happen?
    13·1 answer
  • Consider a 10 gram sample of a liquid with specific heat 2 J/gK. By the addition of 400 J, the liquid increases its temperature
    6·1 answer
  • HELP I NEED THE ANSWER NOW
    13·1 answer
  • Can someone explain E=mc2<br> In FULL detail please
    12·1 answer
  • A cruise ship makes its way from one island to another. The ship is in motion compared with which reference point?
    10·2 answers
  • if a certain star emits most intensely in the visible region of the spectrum, a cooler star would emit mostly in what part of th
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!