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
Art [367]
3 years ago
8

How much energy is needed to raise a 50kg block up from the ground to a height of 5 meters?​

Physics
1 answer:
miss Akunina [59]3 years ago
8 0

Answer:

The answer to your question is    Pe = 2452.5 J

Explanation:

Data

mass = 50 kg

height = 5 m

gravity = 9.81 m/s²

Process

The energy of this process is Potential energy which is proportional to the mass of the body, the gravity and the height of the body.

           Pe = mgh

Substitution

           Pe = (50)(5)(9.81)

Simplification

           Pe = 2452.5 J

You might be interested in
If the mass of a 1.8 g paperclip was able to be completely converted to energy, how much energy would you obtain?
Anton [14]

Answer:

E=1.62\times 10^{14}\ J

Explanation:

Given that,

The mass of the paperclip, m = 1.8 g = 0.0018 kg

We need to find the energy obtained. The relation between mass and energy is given by :

E=mc^2

Where

c is the speed of light

So,

E=0.0018\times (3\times 10^8)^2\\\\E=1.62\times 10^{14}\ J

So, the energy obtained is 1.62\times 10^{14}\ J.

7 0
3 years ago
If the resistance is not changed but the voltage is increased, what happens to the current
julsineya [31]

We know that According to Ohm's Law :

Current passing through a Conductor is directly proportional to the Voltage over a given Resistance.

⇒ V ∝ I

⇒ V = I × R

If Resistance is not changed and Voltage is increased, Based on Ohm's law we can conclude that Current flowing will also increase, because Voltage is directly proportional to Current.

6 0
3 years ago
2. As a pendulum swings, its energy is constantly converted between kinetic
Alex

Answer:

at point F

Explanation:

To know the point in which the pendulum has the greatest potential energy you can assume that the zero reference of the gravitational energy (it is mandatory to define it) is at the bottom of the pendulum.

Then, when the pendulum reaches it maximum height in its motion the gravitational potential energy is

U = mgh

m: mass of the pendulum

g: gravitational constant

The greatest value is obtained when the pendulum reaches y=h

Furthermore, at this point the pendulum stops to come back in ts motion and then the speed is zero, and so, the kinetic energy (K=1/mv^2=0).

A) answer, at point F

6 0
3 years ago
In the 1660s, who discovered that color is a direct function of light by passing sunlight through a prism and observing the band
Mnenie [13.5K]
<span>Sir Isaac Newton was the one who discovered that color is a </span><span>direct function of light by passing sunlight through a prism and observing the bands of the spectrum of colors through his newton of laws.</span>
5 0
3 years ago
Which state of matter has properties that are responsible for your smelling
timama [110]
This answer should be gas
4 0
3 years ago
Read 2 more answers
Other questions:
  • Suppose that you wanted to close a door by throwing a ball at the door. one ball will bounce off the door in a perfectly elastic
    7·1 answer
  • Consider a steel guitar string of initial length l=1.00m and cross-sectional area a=0.500mm2. the young's modulus of the steel i
    7·1 answer
  • How to measure the weight of an object??? HELP! ​
    7·1 answer
  • Water boils at 100°C and turns into steam. Which similarities or differences are there between water in these two states? (1 poi
    11·1 answer
  • A wave with a height of 6 would have greater amplitude than a wave with a height of 5 true or false? HELP
    8·1 answer
  • A 1.5 V battery is connected to a 1,000 μF capacitor in series with a 150 Ω resistor. a. What is the maximum current that flows
    10·1 answer
  • What evidence do we have that the moon is receding from Earth?
    14·1 answer
  • What is the correct answer?
    9·1 answer
  • What class lever is a chest pass in netball?
    11·1 answer
  • What is the density of an object that has a mass of 30 g and a volume of 20cm cubed/ to the third power?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!