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
evablogger [386]
3 years ago
11

A 1.5kw vacuum cleaner is used for half an hour. Calculate its energy usage.​

Physics
1 answer:
juin [17]3 years ago
8 0

Answer:

its energy usage is 0.05

Explanation:

1.5kw/30=0.05

You might be interested in
A 50kg hiker is standing on the edge of a cliff. Find the hiker’s gravitational potential energy if the cliff is 30m high. (Show
DENIUS [597]

Answer:

The answer to your question is:      Ep = 14715 Joules

Explanation:

Data

mass = 50 kg

Potential energy = ?

height = 30 m

g = 9.81 m/s²

Equation

                Ep = mgh

Substitution

                     Ep = (50)(9.81)(30)

                     Ep = 14715 Joules

4 0
3 years ago
Read 2 more answers
People under going physical therapy after an injury often find it helpful to perform exercise in water? Why?
BARSIC [14]
Because water puts less weight on the joints helping prevent more pain and potentially problems

Also if you could give me Brainily that would be amazing
7 0
3 years ago
Imagine a player throwing a football. Explain the action of what is happening to the hand and ball, as well as describe the acti
garri49 [273]

Answer:

Explanation:

When a player throws a football , he applies force on the ball , due to which ball accelerates in forward direction . This is the action force .

The ball also applies a force on the hand of the player . Due to it the player experiences a pushing force in backward direction . This is reaction force .

Due to this force , the player does not move in backward direction because of frictional force of the ground . The frictional force keeps him stationary .

7 0
3 years ago
10. How much U.S. oil demand is represented by the large oil tanker?
dexar [7]
Base on my research, as of 2004 The U.S. devours about 20 million barrels of oil a day, according to the CIA. But base on Wikipedia, it says that a normal large tanker can only carry around 2 million barrels of oil. So to supply the U.S with this oil per day, it needs 10 normal large oil tankers. 
8 0
3 years ago
Two football players are attempting to tackle each other. If one football player has a mass of 100 kg and pushes with a force of
Vaselesa [24]

Answer:

is it 20kg. Two opposing forces pushing onto each other

8 0
3 years ago
Other questions:
  • A force of gravity pulls downward on a book on a table. What force prevents the book from accelerating downward?
    6·2 answers
  • According to Faraday's law, voltage can be changed by moving magnets away from the coil of wire. True False
    14·1 answer
  • A piece of magnetic material that retains its magnetic properties after it is removed from a magnetic field.
    8·2 answers
  • 600-nm light is incident on a diffraction grating with a ruling separation of 1.7 × 10-6 m. The second order line occurs at a di
    10·1 answer
  • If the shoe has less mass, it will experience _______________ (more, less, the same) friction as it would with more mass.
    12·1 answer
  • When bonds between atoms are broken or formed, what is the outcome? A. a physical change B. an element increasing in size C. a c
    15·1 answer
  • What two controls on a car cause a change in speed? What control causes only a change in velocity
    7·1 answer
  • Elastic potential energy depends on the amount of ___________ or ___________.
    14·1 answer
  • Assuming that Bernoulli's equation applies, compute the volume of water ΔV that flows across the exit of the pipe in 1.00 s . In
    11·1 answer
  • In a simple machine, what does it mean :<br><br>i) If efficiency is said to be 65%.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!