Other Physics Answers

A nylon string on a tennis racket is under a tension of 550N. If its diameter is

1.58 mm, by how much is it lengthened from its untensioned length of 45.0 cm?

Give your answer in cm. [Young’s Modulus for nylon = 5 GPa]

A Christmas ball in a shape of a hollow sphere ia hung from the tree by a piece of a thread attached to the surface of the ball. The mass and radius of the ball are 0.105kg and 0.12m, respectively. What will be its period of oscillation when slightly displaced from its equilibrium position?

Hint: l= 5/3mr²

A simple pendulum is found to vibrate 50 times within 200s. When 1.5 meter of its length is reduced to a certain length it vibrates 50 times in 175s. Find the original length of the pendulum.

A spring has a spring Constant, k=90N/m calculate the extension of the spring when 0.45J of work are done stretching it?

A vertical spring has a force constant of 125N/m. By how much will the spring be compressed if a mass of 0.525kg is placed on top of it?

It takes 365.25 days for the earth to complete one revolution around the sun. Calculate the

A. Period

B. Frequency

C. Angular frequency of earth as it revolves around the sun.

A 9 V battery is connected to a resistor with resistance of 1.60 ohm

a) how many electrons leave the battery per minute?

b) if the resistor is made of copper wire eith radius of 25 micrometre, calculate the length of the copper wire. The resistivitu of coller is given as 1.68×10^8 micrometre × m

Determine the weight of a 74-kg man on the moon where the gravitational field is one-sixth that of the Earth’s gravitational force rounded off to nearest hundredths.

What is needed by force to perform work if action of force moving along a direction can perform work?

a )Convert binary number 1100111012 to its BCD code. b) Divide 10100012 by 10012. c) Design and draw a Mod-9 counter.