Answer:
83.847519 mV
Explanation:
B = Magnetic field strength = 7.11 mT
L = Length of steel rod = 99.1 cm
v = Velocity of steel rod = 11.9 m/s
The induced electro motive force is given by
The magnitude of the EMF induced between the ends of the rod is 83.847519 mV
Answer:
The value in Newton is 
The value in pounds is 
Explanation:
From the question we are told that
The mass of the spacecraft is 
The distance above the earth is 
Generally the gravitational force with respect to the earth is mathematically represented as
Here 
is the mass of earth with value 
is the radius of the earth with value 
G is the gravitational constant with value 
So
Converting to pounds
Answer:
MRCORRECT has answered the question
Explanation:
Newton realized that the reason the planets orbit the Sun is related to why objects fall to Earth when we drop them. The Sun's gravity pullson the planets, just as Earth's gravity pulls down anything that is not held up by some other force and keeps you and me on the ground.
Answer:
180,000
Explanation:
Frequency is a quantity that is measured in Hertz [Hz] and it represents the number of rotations per second.
A motor with a frequency of 50 Hz will rotate 50 times per second.
Since we don't want to know how many times it rotates per second, but per hour. The first step is to find how many seconds there are in an hour and then multiply that amount by 50.
Seconds in an hour:
there are 60 seconds per minute, and 60 minutes per hour, thus there are
60*60 = <u>3,600 seconds in an hour</u>
We know that the motor will rotate 50 times per second so to find the number of rotations in 1 hour = 3,600 seconds we multiply:
50*3,600 = 180,000 rotations
