B. force, distance, and time
Take a look at the definition of a Joule (SI unit of work) and the definition of a Watt (SI unit of power). They're (kg*m^2)/s^2 for work and (kg*m^2)/s^3 for power. Another definition for work is Newton Meter which is force times distance, and since you can define work as force times distance, then power is work per second. So it looks like you need force and distance to calculate work, and then time since power is work over time. So of the 4 choices, we've been given, let's see if any of them allow us to calculate both work and power.
<span>
a. energy, force, and time
* OK. Force will get us Newtons. But how much work do you have, don't know. Since work is force times distance. So can't get work. And without getting work, can't get power. Wrong answer.
b. force, distance, and time
* Force over distance nicely defines work. And time is essential since power is work over time. So this looks to be very good choice.
c. force, mass, and distance
* Have a problem here. Time is pretty essential since all of the SI units for work and power have seconds hiding somewhere in their definition. So this is the wrong answer.
d. mass, force, and energy
* Same issue, no time element here. So wrong answer.
</span>
Answer:
Velocity of Gulf Stream= 
west of north at a speed of 
Explanation:
Given
- speed of ship relative to Gulf stream=
west of north at a speed of 4 m/s
- speed of ship relative to earth=
west of north at a speed of 4 .8 m/s
Let 
be the velocity of the ship relative to the earth and 
be the velocity of the ship with respect to the Gulf stream
Let the west direction be negative x axis and north direction be positive x axis
Now
magnitude of the velocity is given by
Let the velocity of gulf stream makes an angle 
with the positive y axis we have
Velocity of Gulf Stream west of north at a speed of
A magnetic field is a field explaining the magnetic influence on an object in space.
A electric field is a field defined by the magnitude of the electric force at any given point in space.
<h3>What are magnetic field and electric fields?</h3>
A magnetic field is a field explaining the magnetic influence on an object in space.
A electric field is a field defined by the magnitude of the electric force at any given point in space.
The difference between magnetic fields and electric filed are:
Electric Filed
- Magnetic fields creates an electric charge in surrounding.
- It is measured as newton per coulomb, volt per meter.
- An electric field is measured using an electrometer.
- It is proportional for the electric charge.
Magnetic Filed:
- Magnetic filed creates an electric charge around moving magnets.
- It is measured as gauss or tesla.
- The magnetic field is measured using the magnetometer.
- It is proportional to the speed of electric charge
Similarities between Electric and Magnetic Field
- Both are vector quantities
- Both are measurable
- Both produce attraction and repulsion forces
- Both are proportional to electrical charge
Learn more about Electric and magnetic field here:
brainly.com/question/12324569
#SPJ1
<h3><u>Answer;</u></h3>
- Synthetic polymers are flexible.
- Synthetic polymers are inexpensive to produce.
- Synthetic polymers are lightweight.
- Synthetic polymers are strong.
- Synthetic polymers are resistant.
- Synthetic polymers are typically produced in large quantities.
<h3><u>Explanation;</u></h3>
- <em><u>Synthetic polymers are types of polymers that are artificially made in the laboratories or in industries. Most of them are derived from petroleum products through the process of polymerization.. They are therefore human-made polymers.</u></em>
- Synthetic polymers includes; polyester, nylon and polyethene among others.
- Synthetic polymers have good mechanical properties, chemical properties and weather resistance ability depending on the structure and the processing of the polymer.
(25m north) + (10m south) = 15m north
(10m east) + (5m west) = 5m east
So the bee is now 15m north and 5m east of the hive.
