Answer:
Explanation:
To start off you need to know that the mass of an object never changes. But gravity does. Think about it life this. Gravity is less on the moon but more on earth, therefore, gravity can change, but mass can't. Now its almost the same as weight because weight changed based upon the gravity. On the moon you weigh only about 10 pounds, on earth, you way much more, and so on.
To calculate the formula you have to do Mass×Gravity which can calculate into Weight.
~Evie weight = mass * gravity
We know that mass never changes, but the weight changes depending on the gravitational pull.
Answer:
a) 231 yards
b) 55.2 yards
c) 0 yards to 260 yards
d) Infinite values
Explanation:
This situation can be described as a horizontal line that begins at point
(Meredith's house) and ends at point
(Bus stop). Where
is the varying distance from her house, which can be calculated in the following way:
x=Final Position - Initial Position
or
![x=x_{f} - x_{i}](https://tex.z-dn.net/?f=x%3Dx_%7Bf%7D%20-%20x_%7Bi%7D)
a) For the first case Meredith is at position
and the bus stop at position
. So the distance Meredith is from the bus stop is:
![x=260 y - 29 y=231 y](https://tex.z-dn.net/?f=x%3D260%20y%20-%2029%20y%3D231%20y)
b) For the second case the initial position is
and the final position
. Hence:
![x=260 y - 204.8 y=55.2 y](https://tex.z-dn.net/?f=x%3D260%20y%20-%20204.8%20%20y%3D55.2%20%20y)
c) If we take Meredith's initial position at her house
and her final position at the bus stop
, the value of
varies from 0 yards to 260 yards.
d) As Meredith walks from her house to the bus stop, the variable
assumes infinite values, since there are infinite position numbers from
to ![x=260 yards](https://tex.z-dn.net/?f=x%3D260%20yards)
Answer:
Explanation:
radius of the solenoid, r = 0.05 m
length of the solenoid, l = 0.39 m
Magnetic field of the solenoid, B = 2 x 10^-5 T
Number of turns, N = 200
The magnetic field of the solenoid is given by
![B=\mu _{0}ni](https://tex.z-dn.net/?f=B%3D%5Cmu%20_%7B0%7Dni)
where, i be the current and n be the number of turns per unit length
n = N / l = 200 / 0.39 = 512.8
![2\times 10^{-5}=4 \times 3.14\times 10^{-7}\times 512.8\times i](https://tex.z-dn.net/?f=2%5Ctimes%2010%5E%7B-5%7D%3D4%20%5Ctimes%203.14%5Ctimes%2010%5E%7B-7%7D%5Ctimes%20512.8%5Ctimes%20i)
i = 0.031 A
Answer:
Both the Technician A and Technician B are correct
Explanation:
According to Technician A, an ammeter measures current flow which is correct.
An ammeter is a device which measures the rate of flow of electrons constituting electric current that flows in a circuit.
According to Technician B, Ammeter must be connected in series in an electric circuit which is also correct.
In a circuit with parallel connections, voltage across each branch is same and current is distributed and is different in each branch.
In a series connected circuit, the potential drop, i.e., voltage across each connected element is different while the current in series is the same.
So, in order to measure the correct value of current flowing in the circuit, ammeter must be connected in series in the circuit.
Explanation:
If the displacement of an object is proportional to the square of the time taken then the body is moving with uniformly accelerated motion as it will follow Newton's second equation of motion for a particular initial velocity, which can be given by, s=ut+21at2.
hope this is helpful to you