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
Sati [7]
2 years ago
12

An elevator provides 21 000 w of power during a 12 s ride. how much work does the elevator do?

Physics
1 answer:
Mice21 [21]2 years ago
4 0

Answer:

252000 J

Explanation:

W = Pt

W = (21000 w)(12 s)

W =252000 J

You might be interested in
A quickly moving van and a slowly moving bird have a head-on collision. The bird splatters all over the windshield as a result.
Svet_ta [14]

Answer:

option (c)

Explanation:

the force is same on both the van and the bird.

According to the Newton's third law, there ia an equal and opposite forces acting on both the objects.

So, they both experience same force but the direction is opposite to each other.

Bird splatters all over because the bird cannot handle large force but van can handle so that the bird splatter all over the wind shield.

7 0
3 years ago
Gravity____?<br> Help please
Anika [276]
Gravity is described as a fundamental force and therefore does not depend on other forces
8 0
3 years ago
Read 2 more answers
Magnetism is a type of<br>A. force<br>B. energy<br>C. gravity<br>D. electricity<br>​
erastovalidia [21]

Answer:

A. force

Explanation:

Magnetism is a type of force.

5 0
2 years ago
Read 2 more answers
A flight attendant pushes a beverage car on an aircraft. Her mass is 75 kg and the cart’s mass is 27 kg. Calculate the accelerat
tankabanditka [31]

Answer:

a = 1.34 m/s²

Explanation:

given,

mass of the attendant(M) = 75 Kg

mass of cart (m)= 27 Kg

Backward force exerted on floor (F)= 155 N

frictional force on the cart (f)= 18 N

acceleration

a = \dfrac{F_{net}}{M+m}

F_{net} = F - frictional force

F_{net} = 155 N - 18 N

F_{net} = 137 N

now,

a = \dfrac{137}{75 + 27}

a = \dfrac{137}{102}

a = 1.34 m/s²

the acceleration produced when flight attendant is equal to  a = 1.34 m/s²

6 0
3 years ago
What is charging by conduction. <br> Can you also give an real life example of it.
Vadim26 [7]

Answer: Where the charged object is brought near but never contacted to the object being charged, conduction charging involves making the physical connection of the charged object to the neutral object. Because charging by conduction involves contact, it is often called charging by contact.

Real life example: A positively charged aluminum plate comes into contact with a neutral metal sphere

Explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • A person on a diet loses 1.6 kg in a week. How many micrograms/second (µg/s) are lost?
    12·1 answer
  • A beam of light, traveling in air, strikes a plate of transparent material at an angle of incidence of 56.0°. It is observed tha
    11·1 answer
  • The chart shows masses and velocities of four objects. Which lists the objects in order, from least to greatest momentum?
    9·2 answers
  • A ball is thrown with a velocity of 40 m/s at an angle of 30° above the horizontal and attains a certain range R. At what other
    14·1 answer
  • A source emits sound with a frequency of 860 Hz. It is moving at 20.0 m/s toward a stationary reflecting wall. If the speed of s
    15·2 answers
  • The velocity of a particle traveling along a straight line is v = Vo − ks where k is constant. If s=0 when t=0, determine the po
    11·1 answer
  • Should I take physics or biology?
    10·2 answers
  • A battery causes a current of 2.0 A to flow through a lamp. The power used by the lamp is 12 watts. What is the voltage?
    7·1 answer
  • What is the wavelength associated with an electron with a velocity of 4.8x10*5 m/s?
    11·1 answer
  • In a study of momentum during collisions, a student threw an egg at a large sheet of cloth that was suspended from a line and ob
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!