What is the magnitude of the torque

Reference no: EM135218

Q1. A 3.10-m-long, 310 kg steel beam extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 73.0 kg construction worker stands at the far end of the beam.What is the magnitude of the torque about the point where the beam is bolted into place?

Q2. If an average frequency emitted by a 200,-,rm W light bulb is 5.00 times 10^{14} , {rm Hz}, and 10.0 percent of the input power is emitted as visible light, approximately how many visible-light photons are emitted per second?

Reference no: EM135218

Questions Cloud

What is the horizontal distance the airplane engine falls : What is the horizontal distance the airplane engine falls. find out the time that was recorded on Earth.

What must be the result have been for the horizontal speed : A train at rest emits a sound at a frequency of 1045 Hz. An observer in a car travels away from the sound source at a speed of 37 m/s.What is the frequency heard by the observer . What must be the result have been for the horizontal speed.

What is the amplitude of the oscillations : What is the amplitude of the oscillations . Could you think of a simple method for determining the focal length of a converging lens.

How much time would observe have measured for the car : A 1000 {rm kg} wrecking ball hangs from a 15 {rm m}-long cable. The ball is pulled back until cable makes an angle of 25.0^circle with the vertical. By how much has the gravitational potential energy of the ball changed .

What is the magnitude of the torque : If an average frequency emitted by a 200,-,rm W light bulb is 5.00 times 10^{14} , {rm Hz}, and 10.0 percent of the input power is emitted as visible light, approximately how many visible-light photons are emitted per second .

What total force is exerted on the positive charge : If air drag is negligibly small, how fast is sequoia cone moving while it reaches the ground if it dropped from the top of a 114 tree.

Find out an average forces exerted on car : How various kilograms of nitrogen are boiled away in time of 7.50 h. car that hits a line of water barrels and takes 1.8s to stop.

What is the greatest possible distance from the wall : What is the velocity of each ball after the elastic collision? What will be the highest height of each ball after the elastic collision .

Determine the electric potential difference va - vb : A spring with spring constant 12.5 hangs from the ceiling. A 400 ball is attached to the spring and allowed to come to rest. It is then pulled down 6.80 and released. What is the time constant if the ball's amplitude has decreased to 3.90 after 57.0 ..

User Account

All Pages