Science

PhysicsQ&A LibraryA rigid rod of length / rotates about an axis perpendicular to the rod, with one end of the rod fixed to the axis. Which of the following are equal at all points on the rod? I. the angular position II. the angular velocity III. the angular acceleration IV. the centripetal acceleration V. the tangential acceleration a. I and II c. 1. П. III and IV d.1, Π. Ш, IV and VQuestion

Find answers to questions asked by students like you.

Q: A 1.7 kg body oscillates in SHM on a spring that, when extended 2.4 mm from its equilibrium position...

A: Write the expression for the angular frequency of oscillation.

Q: An air conditioner connected to a 120 V rms ac line is equivalent to a 17.6 Ω resistance and a 1.31 ...

A: GivenVoltage applied Vrms = 120 VResistance R = 17.6 ohmInductive resistance XL= 1.31 ohm

Q: From Snell’s Law, equation (2), derive the Brewster’s angle formula given byequation (4) when (theta...

A: Brewster’s angle is the angle of incidence at which light with a particular polarization is perfectl...

Q: V=IR, if I is constant, what happens to V by changing R value?

A: Ohm’s law states that the potential difference across an ideal conductor is proportional to the curr...

Q: A body of unknown mass is attached to an ideal spring with force constant 122 N/m. It is found to vi...

A: a)The expression for the time period is,

Q: 8. A machine part rotates at an angular speed of 0.060 rad/s; its speed is then increased to 2.2 rad...

A: Given: final angular speed = 2.2 rad/sInitial angular speed = 0.060 rad/sAngular acceleration = 0.7...

Q: In a classroom demonstration, an 820 N student lies on a bed of sharp, evenly spaced, vertical nails...

A: (a)The average force exerted by the nail on the student’s body is,Here, W is the total weight of the...

Q: Can some one show step by step of how to solve by using the quadratic kinematic and using (Vix) time...

A: The horizontal distance at which the rock is landed = 1 km 1000 m.The angle at which the rocks launc...

Q: The Sun and Earth each exert a gravitational force on the Moon. What is the ratio FSun/FEarth of the...

A: The expression for ratio of these two forces is,