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
statuscvo [17]
2 years ago
11

1 point

Physics
1 answer:
Sav [38]2 years ago
8 0

Answer:

388.5J

Explanation:

Given parameters:

Weight  = 70N

Height  = 5.55m

Unknown:

Gravitational potential energy at the top of the ladder  = ?

Solution:

The gravitational potential energy is the energy due to the position of the body.

  Gravitational potential energy  = Weight x height

So;

 Gravitational potential energy  = 70 x 5.55 = 388.5J

You might be interested in
Some populations have cooperative relationships. This is where:
Ilia_Sergeevich [38]
C. Members of the same species work together for survival
5 0
2 years ago
!!! 100 POINTS !!! PLEASE HELP !!!
hram777 [196]

Q1. Option 2: basketball


Q2: Newton's first law is <span>the </span>law<span> of inertia. </span>An object at rest stays at rest and an object in motion stays in motion.

<span>
</span>

<span>Q3. A basketball sitting on the floor stays there and a basketball rolling on court keeps on rolling.</span>

<span>
</span>

<span>Q4 Second law says acceleration is dependent upon net force and mass of the object.</span>


Q5. Basketball accelerates when a player tries to dunk it with both hands.


<span>Q6. Third law says f<span>or every action, there is an equal and opposite reaction.</span></span>

<span><span>
</span></span>

<span><span>Q7. As a player dribbles, the force the basketball hits the floor with is the same as the force from the floor on the ball. That is why the ball bounces back up in air.</span></span>

<span><span>
</span></span>


8 0
3 years ago
Read 2 more answers
Please hurry and please no links. I need an answer. Explain why a smart meter monitors the amount of electrical energy being use
brilliants [131]

Smart Metering is a technology encouraging end-use energy efficiency. Smart Meters can give consumers clear and comprehensive information about their energy consumption and, giving them better information, can help consumers to become more energy efficient.

Hope it helped you... pls mark brainliest

4 0
2 years ago
The minimum frequency of light needed to eject electrons from a metal is called the threshold frequency, ν0. find the minimum en
shusha [124]
The energy carried by the incident light is
E=hf
where h is the Planck constant and f is the frequency of the light. The threshold frequency is the frequency that corresponds to the minimum energy needed to eject the electrons from the metal, so if we substitute the threshold frequency in the formula, we get the minimum energy the light must have to eject the electrons:
E=hf=(6.63 \cdot 10^{-34}Js)(5.64 \cdot 10^{14}s^{-1})=3.74 \cdot 10^{-19}J
4 0
3 years ago
Imagine that the apparent weight of the crown in water is Wapparent=4.50N, and the actual weight is Wactual=5.00N. Is the crown
9966 [12]

Answer:

Explanation:

Actual weight, Wo = 5 N

Apparent weight, W = 4.5 N

density of water = 1 g/cm^3 = 1000 kg/m^3

density of gold, = 19.32 g/cm^3 = 19.32 x 1000 kg/m^3

Buoyant force = Actual weight - Apparent weight

Volume x density of water x g = 5 - 4.5

V x 1000 x 9.8 = 0.5

V = 5.1 x 10^-6 m^3

Weight of gold = Volume of gold x density of gold x gravity

W' = 5.1 x 10^-6 x 19.32 x 1000 x 9.8 = 0.966 N

As W' is less than W so, it is not pure gold.

4 0
3 years ago
Other questions:
  • If a tree falls in the middle of the woods and nobody is around to hear it, does it make a sound?
    5·2 answers
  • The momentum of an object is determined to be 7.2 × 10-3 kg⋅m/s. Express this quantity as provided or use any equivalent unit. (
    12·1 answer
  • A physical change occurs when a material changes shape or size but the composition of the material does not change. True or Fals
    10·1 answer
  • Which of the following should maintain the appropriate temperature and humidity levels and provide closed-loop recirculating: a.
    7·1 answer
  • Electrically neutral objects become___when they or lose electrons.
    14·2 answers
  • Materials such as rubber, plastics, and glass do not carry electrical currents and<br> are known as
    9·1 answer
  • Suppose the coefficient of static friction between a quarter and the back wall of a rocket car is 0.383. At what minimum rate wo
    11·1 answer
  • A basketball has a coefficient of restitution of 0.821 in collisions with the wood floor of a basketball court. The ball is drop
    14·1 answer
  • What do the astrometric, doppler, and transit methods share in common?
    12·1 answer
  • A screw having 50% efficiency is driven by a rod and 25 cm. The pitch of the screw is 1/10cm Calculate velocity ratio and mechan
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!