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
Tju [1.3M]
3 years ago
9

A person runs with a constant velocity of 1.2 m/s for 30 seconds. how far do they travel?

Physics
1 answer:
Nataliya [291]3 years ago
8 0
They will travel 36 m
You might be interested in
A system undergoing a power cycle develops a steady power output of 0.3 kW while receiving energy input by heat transfer at a ra
uranmaximum [27]

Answer:

The thermal efficiency is 43%.

The total amount of energy developed by work is 397 kW in one year.

Explanation:

Given that,

Power output = 0.3 kW

Heat energy = 2400 Btu/h = 0.703 kW

We need to calculate the thermal efficiency

Using formula of efficiency

\eta=\dfrac{out-put}{in-put}

Put the value into the formula

\eta=\dfrac{0.3}{0.703}

\eta=0.43\times100

\eta=43\%

The thermal efficiency is 43%.

(b). We need to calculate the total amount of energy

Using formula of energy

E=0.43\times0.703\times60\times60\times365

E=397209.06\ J

E=397\ kW

Hence, The thermal efficiency is 43%.

The total amount of energy developed by work is 397 kW in one year.

4 0
4 years ago
Current is constant at all points in a parallel circuit.<br><br> True<br> False
Sergio [31]
This is false. Current is the speed of the charge, 1 amp of current is 1 coulomb per second. So you can imagine the current of a circuit as the current of a river. In a parallel circuit, the river breaks into two separate streams. Some of the water goes down one river, some goes down the other. However, the total amount of water/coulombs never changes. This means that some of the total current will go down one river, and one the other. However, with less coulombs now the current will decrease. 

Long story short, since there are two paths, the charge will split and depending on the resistance of each parallel stream a different amount of charge will go down each branch.  
5 0
3 years ago
You and your lab partner, Mel, are engrossed in a chemistry activity using beans to compute the average atomic mass of an elemen
Vikentia [17]

Answer:

C:

Explanation:

either C or A but A seems unlikely after multiple attempts. Although the question doesn't make it clear whether the balance is electric either way it could be wrong in someway and seems to be the most likely.

5 0
3 years ago
Read 2 more answers
Solid state physics uses the. Theory to understand how the large-scale properties of solids result from their atomic scale struc
kondaur [170]

Answer:

Quantum theory

Explanation:

The scientific foundation in quantum mechanics is quantum theory, which describes the existence and behavior of mass and antimatter at the subatomic particles levels. Quantum theory and quantum theory are often related to as the existence and behavior of matter in the universe at that stage.

8 0
3 years ago
A mountain slope and a skier make up a closed system with 21,800 J J of energy. When the skier starts her descent down the mount
belka [17]

Answer: 1,270 J

Explanation: APEX

4 0
3 years ago
Other questions:
  • How much current will a 500 W vacuum cleaner draw if it has a resistance of 30Ω?
    11·1 answer
  • A mechanical high-speed bat is flying along a path perpendicular to a wall. it emits a sound with a frequency f0 . the night is
    14·1 answer
  • Waves are often caused by
    15·2 answers
  • two balls each with with a mass of 0.5 kg, collide on a pool table. is the law of conservation of momentum satisfied in this col
    13·2 answers
  • An amusement park ride travels up and down.
    13·2 answers
  • Officials in the House of Representatives serve __ terms.
    11·2 answers
  • What property of objects is best measured by their capacitance?
    11·1 answer
  • The specific heat of gold is 0.031 calories/gram°C and the specific heat of silver is 0.057 calories/gram°C. If equal amounts of
    9·1 answer
  • A vehicle travels a distance of 300km. It took the vehicle 6 hours to make the trip.
    10·1 answer
  • What observation did this geocentric model of the solar system help to explai
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!