Sign In
Ask Question
Aliyah
Physics
Q1: A step-up transformer has 80 turns on its primary coil and 1200 turns on its secondary coil. The
primary circuit is supplied with an alternating current at 120 V.
a) What voltage is being applied across the secondary circuit?
b) The current in the secondary circuit is 2.0 A. What current is in the primary circuit?
c) What are the power input and output of the transformer?
Answer
Answers (1)
Dangelo Atkinson
Physics
A medium-sized pear provides about 102 Calories of energy. HINT (a) Convert 102 Cal to joules. J (b) Suppose that amount of energy is transformed into kinetic energy of a 2.03 kg object initially at rest. Calculate the final speed of the object (in m/s). m/s (c) If that same amount of energy is added to 3.79 kg (about 1 gal) of water at 23.7°C, what is the water's final temperature (in °C) ? The specific heat of water is c = 4186 J (kg · °C). °C
Answer
Answers (1)
Parker Clements
Physics
What will not affect strength of a electromagnet?
Answer
Answers (2)
Samara Maynard
Physics
What profession is most likely to make use of amperes and candelas a. nurse b. marine biolaginst c. eletrical engeneer d. althletic coach
Answer
Answers (2)
Boots
Physics
The peak electric field in an intense IR laser beam is about 25,000 V/m. How much energy does this laser beam deliver in 1 minute if it makes a spot with a diameter of 2mm?
Answer
Answers (1)
Lukas
Physics
Why are infrared telescopes useful for exploring the structure of the galaxy? why is it important to make observations at both near-infrared and far-infrared wavelengths?
Answer
Answers (1)
Zuniga
Physics
According to the big bang theory, after the "bang," the universe remained dark until
Answer
Answers (1)
Nixon
Physics
Can two objects of different masses have the same acceleration and speed?
Answer
Answers (1)
Nickolas Meza
Physics
If R is the total resistance for a parallel circuit with two resistors of resistance r1 and r2, then. Find the resistance, r1, if the total resistance R is 20 ohms, and r2 is 75 ohms. Round your answer to the nearest ohm if necessary. 1/R = 1/r1+1/r2
Answer
Answers (1)
Noe
Physics
Which radio wave technologies would be unaffected by satellites that are not working properly?
A. space communication and television broadcasting
B. television broadcasting and GPS
C. MRI and radio telescopes
D. radio telescopes and space communication
Answer
Answers (1)
Jaime Delgado
Physics
What mRNA sequence would result from the following DNA sequence?
ATG GAC TCC TAG *
AUG GAC UCC UAG or
UAC CUG AGG AUC or
TAC CTG AGG ATC
Answer
Answers (1)
Payten
Physics
How does temperature affect water potential?
Answer
Answers (1)
Doogie
Physics
What particle is used as a beam to treat cancer
Answer
Answers (1)
Halfling
Physics
If a ball is thrown at some angle to the ground other than 90 degrees, and has a total flight time of 9.3s, to what height did it rise?
Answer
Answers (1)
Ace Arellano
Physics
An electron is held at a distance from a stationary, positively charged object. If the electron is released, what energy change will take place?
Answer
Answers (1)
More
1
...
101
102
103
104
105
...
Home
»
Physics
» Page 103
Sign In
Sign Up
Forgot Password?