A transformer is to be used to step up voltage from an alternating current source from 120 V to 1800 V. If the primary has 170 turns, then the number of turns in the secondary is A. 20. B. 660. C. 720. D. 2550 E. 6600.

Q: A piece of iron has a mass of 329 g and a temperature of 92.0 °C. It's placed inside an insulated…

A:

Q: B If the loop was initially at rest and floating in space and was free to move in any way…

A:

Q: The hydraulic lift at a car repair shop is filled with oil. The car rests on a 25-cm-diameter…

A:

Q: (a) Find the net gravitational force exerted by these objects on a 59.0 kg object placed midway…

A:

Q: The 7.10 kg block shown above is being lowered down a ramp, inclined at 0 = 41.5°, by the 4.50 kg…

A:

Q: Incandescent Light Bulb. Increase every half volt and measure the current. Voltage (V) Current (A)…

A: a)19.44 b)5 c)16.66 ping me if you have doubts

Q: Atmospheric pressure boils at 212°F. At the vacuum pressure at 24 in Hg, the temperature is 142°F.…

A: in this question to solve it use equation of clausuis and clapeyron of thermodynamics.

Q: Ex. 1 Find the second moment of inertia with respect to the axis parallel to symmetric axis and…

A:

Q: A pendulum bob with a mass of 0.45 kg is attached to a 1.5 m long string as shown. B 1.5m TEACHER…

A:

Q: The Sun can be modelled as having radius 696,000 km, temperature 5250 K, and at an average distance…

A: Concept of Stefan Boltzmann Law: It is used to correlate between power emission from the blackbody…

Q: How long does it take for a hotplate of power 950 W to heat up 4.5 kg of 20.0C to boiling (10OC)?

A:

Q: The image of a distant tree is virtual and very small when viewed in a curved mirror. The image…

A: Given , Image of a distant tree is virtual. Here the object should be considered as at infinity.…

Q: A A dozen resistors are arranged in a cube as shown in the diagram. What is the effective resistance…

A:

Q: A light bulb is connected to a 120.0-V wall socket. The current in the bulb depends on the time t…

A:

Q: a. If we had three resistors, each of 1.0 k2, how could we connect them so that the equivalent…

A: The equivalent resistance of the series combination of n resistors is given as R = R1+ R2 + R3…

Q: The densest known element is osmium with a density of p = 22.4 g/cm. Suppose two small spheres of…

A:

Q: The uniform 19-m pole has a mass of 150 kg and is supported by its smooth ends against the vertical…

A:

Q: speed and direction of m, after the collision

A: Given: Mass m1=0.80 kg and its velocity is v1,i=1.80 m/s towards right. Mass m2=1.20 kg and its…

Q: A block of iron with volume 12.5 x 10³ m³ contains 3.95 x 10 electrons, with each electron having a…

A: Solution: The magnetization M of a material is defined as the magnetic moment per unit volume of the…

Q: 8. Spheres A, B and C have charges of 8.0 C, 12.0 C, AND -5.0 C respectively. The three spheres are…

A: Before touchhing QA=8 CQB=12 CQ3=-5 CQA+QB+QC=8C+12C-5C=15C

Q: Two billiard balls of equal mass undergo a perfectly elastic head-on collision. If one ball's…

A: given       Velocity of the first ball is V1i = 1.5m/s          Velocity of the 2nd ball is V2i =…

Q: 17C. On a day when atmospheric pressure is 1.04 atm, a tire gauge reads 240 kPa. (a) What is the…

A:

Q: 1.0 m² 0.8c FIGURE 1 A 1.0 m² square flies past earth at a speed of 0.8c in FIGURE 1. Calculate the…

A: We have a square of area A=1 m2 which is flying with a velocity v=0.8c towards the right where…

Q: 1.0 m² 0.8c FIGURE 1 A 1.0 m² square flies past earth at a speed of 0.8c in FIGURE 1. Calculate the…

A:

Q: Sound exits a diffraction horn loudspeaker through a rectangular opening like a small doorway. Such…

A:

Q: The magnetic flux through a coil of wire containing two loops changes at a constant rate from -55 Wb…

A: We know that induced emf = -Ndϕmdt , where N is number of loops , ϕm is magnetic flux. Here , N = 2…

Q: Please help with explanation. I will upvote

A: Given : We have given with the graph with axis denoted with units and show the motion of the…

Q: Explain the significance of turning points.

A: The turning point is a moment when an important change takes place in a situation, especially one…

Q: A microscope has a 2.0 -cm -focal-length eyepiece and a 0.40 -cm objective. Assuming a relaxed…

A:

Q: Be sure to review Example 19.9 before attempting these problems. Figure 10 V [ R2₂ ←1₁ 1 of 1 Part A…

A:

Q: In a series LCR circuit, the.. inductor of inductance toom a resistor of 1052 fa variable copacilor…

A: We need to compute- Capacitance at resonance (C)=? Current (I)=? The data given as- Inductance…

Q: Determine the resultant R (single equivalent force) of the three forces acting on the simple truss.…

A: In this question we have to determine the resultant R (single equivalent force) of the three forces…

Q: Two children float motionless in a space station. The 20 kg girl pushes the 40 kg boy and the boy…

A:

Q: how long does it take an electric saw to stop rotating if it starts at 4300 rad/sec And rotate 2330…

A: Given  data The number of revolutions n =2300 revolutions.  Initial angular speed ωi=4300 rad/s

Q: A0.900 m -diameter vat of liquid is 2.80 m deep. The pressure at the bottom of the vat is 1.40 atm.…

A: diameter (d) = 0.900 m depth (h) = 2.80 m pressure (P) = 1.40 atm

Q: 7) Approximately what RPM is the Ruston Engine run at during the lab? a) 400 RPM b) 450 RPM c) 350…

A:

Q: Please tell the mistake in this problem.

A: