Recent questions in Physics

Question

Related to a VFD and the material covered in the course, if the speed of a 575V - 60Hz 3-phase motor needed to be reduced by 30%, calculate the volts/hertz ratio (V/Hz) as well as the new required output

Faranjit asked Oct 18, 2024

by Faranjit

8.8k points

1 answer

3 votes

153k views

What is the term for a slow stimulation rate of 1 Hz applied over 5 to 10 minutes, often used in neurological studies? A) Rapid eye movement (REM) stimulation B) Theta burst stimulation C) Slow-wave stimulation

Yoyodunno asked Oct 18, 2024

by Yoyodunno

8.4k points

1 answer

0 votes

73.7k views

How many volts are supplied to operate an indicator light on a DVD player that has a resistance of 140Ω, given that 25.0 mA passes through it? a) 3.50 V b) 35.0 V c) 8.75 V d) 0.350 V

Joubert Nel asked Oct 18, 2024

by Joubert Nel

8.2k points

1 answer

5 votes

183k views

The three principal parts of a pin curl include: a. Base, stem, and circle b. Base, stem, and curl c. Circle, curl, and pin d. Stem, circle, and pin

Naoto Usuyama asked Oct 18, 2024

by Naoto Usuyama

7.7k points

1 answer

4 votes

112k views

To maintain the Celsius temperature of a system at least 5°C, what minimum Fahrenheit temperature should be maintained? a. 9°F b. 18°F c. 23°F d. 41°F

Ayvazj asked Oct 18, 2024

by Ayvazj

8.1k points

1 answer

4 votes

212k views

A car with a mass of 1000 kg travels around a banked curve with a constant speed of 27 m/s. The radius of curvature of the curve is 40 m. The magnitude of the horizontal component of the normal force that

Row asked Oct 18, 2024

by Row

7.8k points

1 answer

0 votes

55.7k views

The molecules of a certain gas sample have a root-mean-square (rms) speed of 293 m/s. calculate the molecular mass of a molecule a) 1 g/mol b) 16 g/mol c) 32 g/mol d) 64 g/mol

Dave Templin asked Oct 18, 2024

by Dave Templin

8.1k points

1 answer

5 votes

138k views

True/False: In a 1954 experiment, John Stapp accelerated to 632 mph in 5 seconds, surviving 46 volts.

Malisha asked Oct 18, 2024

by Malisha

7.7k points

1 answer

0 votes

123k views

You walk 5km north for 3 hrs and 2km south for 1 hr what your speed , velocity

Michele Bontorno asked Oct 18, 2024

by Michele Bontorno

8.4k points

1 answer

3 votes

59.4k views

A student attaches a ball to the end of a string and swings it in a circular motion. Explain the forces acting on the ball during this motion.

TimSC asked Oct 18, 2024

by TimSC

7.8k points

1 answer

1 vote

187k views

On the VE chapter page, how many morphologies does irhythm provide?

Deimos asked Oct 18, 2024

by Deimos

7.8k points

1 answer

2 votes

59.1k views

Describe rotational motion and angular momentum about centre of mass.

Pensz asked Oct 18, 2024

by Pensz

8.1k points

1 answer

1 vote

92.6k views

How will the time constant of an L-R circuit change if you doubled the length and the number of turns in the coil? (Note: The resistance of the coil is proportional to its length) a. It will double b.

Ashok Goli asked Oct 18, 2024

by Ashok Goli

6.8k points

1 answer

0 votes

144k views

Explain three ways energy moves through the water cycle. Urgent help!!

Tonny Xu asked Oct 18, 2024

by Tonny Xu

9.1k points

1 answer

0 votes

175k views

A 161kg bumper car driving at 7.2m/s collides with a 148kg bumper car driving the opposite direction at 4.1m/s. After the collision, the 161kg bumper car moves forward at 2.9m/s. Find the velocity of the

SeaBrightSystems asked Oct 18, 2024

by SeaBrightSystems

8.2k points

1 answer

1 vote

82.5k views

Based on the diagram, why does the lightbulb light when the loop rotates, and what is the energy change involved? Responses When the wire moves in an electric field, electrons in the wire move and become

Wpdaniel asked Oct 18, 2024

by Wpdaniel

8.7k points

1 answer

1 vote

222k views

A substance that does not easily transmit electricity is called a(n):

Seth Difley asked Oct 17, 2024

by Seth Difley

7.7k points

1 answer

0 votes

91.3k views

Calculate the moment of inertia for the system. The rods of length L are massless.

Lcfd asked Oct 17, 2024

by Lcfd

8.2k points

1 answer

3 votes

109k views

What is the frequency of this light? E/h = v 3.2 x 10-19 J/ 6.63 x10 -34 Js = 4.8 x1014 Hz

Bullets asked Oct 17, 2024

by Bullets

8.1k points

1 answer

5 votes

75.2k views

A crossbow is aimed horizontally at a target 40 m away. The arrow hits 30 cm below the spot at which it was aimed. What is the initial velocity of the arrow?

Michalsrb asked Oct 17, 2024

by Michalsrb

8.0k points

1 answer

3 votes

114k views

Page:

« prev
1
...
910
911
912
913
914
915
916
...
1000
...
next »

Ask a Question

Recent questions in Physics

Other Questions