08/12/21

Two capacitors, C₁ and C₂, are connected in parallel. C₁ = 5.00 x 10-5 F and the equivalent capacitance of the pair is 7.50 x 10-5 F. What is the capacitance of C2?
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08/04/21

In the diagram, q₁ = -2.00 x 10-5 C, 92 +3.80 x 10-6 C, and q3 = +5.30 x 10-5 C. What is the electric potential energy U, for charge q2? Include the correct sign (+ or -).
Q1-Q2-Q3 (left to right) Q1 to Q2 has distance of 1.15 m. Q2 to Q3 has a distance of 2.88 m.
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08/01/21

what would the final pressure of 40L of gas at 90 pa be if the volume was increased to 120L
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07/30/21

How can I solve this?
How many turns of wire would be required to make a 160-mH inductor out of a 32.0-cm-long air-filled solenoid with a diameter of 6.3 cm ? N = ______ turns
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07/30/21

Youngs double slit Experiment
The following apparatus is used to investigate the light interference using a double slit. The distance, y, between the slits and the screen can be adjusted. The slit width, S, can also be... more
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07/29/21

A 0.00125 kg wire .50 m long is under a tension of .10N. Determine the frequency of vibration required to produce a third harmonic standing wave in the wire.

A 0.00125 kg wire .50 m long is under a tension of .10N. Determine the frequency of vibration required to produce a third harmonic standing wave in the wire.
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07/29/21

How do you calculate average velocity with time and height with a given data set?

Given Data Set: Time Height 0 00.2 150.4 400.8 751 1201.2 1751.4 1901.6 1881.8 1802 ... more
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07/27/21

Half-life of silicon if 50 grams are present how many in 500 years
the half-life of silicon-32 is 710 years. if 50 grams are present now how much will be present in 500 years?
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07/27/21

find the kinetic energy of the bar
A 30 cm long metal bar with mass 12 grams is attached to a pivot with a massless string 70 cm long. Find the kinetic energy of the bar in ergs when it is rotated at a rate of 3 revolutions per second. more
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07/27/21

find the kinetic energy in ergs
A point-mass of 15 grams at the end of a massless 20 centimeter long string is rotated at a rate of 3 revolutions per second. Find the kinetic energy (ergs) of the point mass.
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07/26/21

How can I solve this?

You have three capacitors of values 40 F, 10 F and 50 F. What would their equivalent capacitance (in F) be if they were connected in parallel with each other? Enter your answer as a number only, to... more
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07/26/21

How can I solve this? Thanks in advance!
In (Figure 1), let V = 15.0 V and C1=C2=C3= 24.2 μF.Part A: How much energy is stored in the capacitor network as shown in (Figure 1)?Part B: How much energy would be stored in the capacitor... more
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07/25/21

Light of wavelength
Light of wavelength 690  falls on two slits and produces an interference pattern in which the third-order bright red fringe is 52  from the central fringe on a screen 2.4  away.What is the... more
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07/22/21

A rock is thrown with an initial speed of 30 m/s at an angle of 600 above the horizontal. Neglect air resistance.
3. Find the velocity of the rock two seconds later after it was thrown?4. Find the displacement of the rock two seconds later from the position it was thrown?1. Show ALL equations, then... more
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07/21/21

Can someone please help me with this Pre-algebra problem?
I’m trying to help my younger brother with his homework, but I’m not sure if he’s correct. Can someone please help?Valerie used 2/3 of a full spool of string for her project. There were 47 inches... more
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07/20/21

Basic problem on force vectors
Two equal forces with magnitude F act on a box by an angle of 120 degrees. Find the magnitude of the resultant force.(The answer is F)
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07/17/21

HELP ASAP PLEASE!!!
Alex is 1.80 meters tall. He casts a shadow that is 1.45 meters long. At a distance of 4.95 meters from the tree his shadow reaches the end of a tree's shadow. What is the tree's height?Image... more
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07/16/21

please answer this trig question asap my homework is due today
Question: (please answer this question asap I really need help by today since my homework is due today and if possible can you provide the formula you used?) Two walls of a canyon form the walls... more
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07/16/21

Physics help about reaction time trials!
Hi! If we were to calculate the reaction time of humans, why do we need 20 trials and use the mean value?
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07/14/21

The chord of a circle is 10 cm from the center of the circle whose radius is 15cm. How long is the chord?
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07/14/21

slove the math step by step with formula
A projectile is fired at an angle 30 ° from a gun that is 45 m above the flat ground, emerging from the gun with a speed of 300 m/s. (a) How long does the projectile remain in air? (b) At what... more
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07/13/21

In the diagram, q1 = -4.60 x 10^-6 C, 92 +3.75 x 10^-6 C, and q3 = +8.30 x 10^-5 C. Find the direction of the net force on 93.
The diagram is a right triangle. Q1 is connected to Q3 (up-down) with a distance of 0.200 m. Q3 is connected to Q2 (right-left) with a distance of 0.200 m. Q2 is connected to Q1 (diagonally) with a... more
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07/12/21

What would the decay constant be ?

A certain radioactive substance with a half- life of 2600 years is used in estimating the age of relics . Part 1: Find the decay constant. Give excat symbolic answer.
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07/12/21

Work, Energy and Power
Olive Udadi is at the park with her father. The 26-kg Olive is on a swing following the path as shown. Olive has a speed of 0 m/s at position A and is a height of 3.0-m above the ground. At... more
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07/09/21

force on charge and halfway between

Two charges of +10 – 6 C are located 1 cm apart. (a) What is the force on a charge +10 – 8 C halfway between them? (b) What is the force on a charge of –10 – 8 C at the same place?
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