Two identical loudspeakers emitting the same pure tones (ƒ = 343 Hz) are facing each other at a distance of 10.0 m. If the speed of sound is 343 m/s, the wavelength λ = 1m. An observer positioned...
Two identical loudspeakers emitting the same pure tones (ƒ = 343 Hz) are facing each other at a distance of 10.0 m. If the speed of sound is 343 m/s, the wavelength λ = 1m. An observer positioned...
You throw a ball into the air and catch it on the way down. Beginning with the chemical energy in your muscles, describe the energy transformations of the ball. Explain using physics...
A boxer punches a sheet of paper in mid air, and brings it from rest up to a speed of 26 m/s in 0.05 s. If the mass of the paper is 0.001 kg, what force does the boxer exert on it?
What are the x & y components of vector E in terms of the angle σ & the magnitude E? For the same vector, what are the x & y components in terms of the angle ø...
The lab is called "kiss the egg". I am pretty sure it will come up if you google it in case it does not make sense how I explain it. I am given a random length of rubber band. The...
A position vector with magnitude 10m points to the right & up. Its x-component is 6.0m. What is the value of its y-component?
A ball with a horizontal speed of 1.25m/s rolls off a bench 1.00m above the floor. A) How long will it take the ball to hit the floor? B) How far from a point on the...
Two children who are bored while waiting for their flight at the airport decide to race from other end of the 20m long moving sidewalk to the other & back. Philippe runs on the sidewalk...
King Arthur's knights use a catapult to launch a rock from their vantage point on top of the castle wall, 12m above the moat. The rock is launched at a speed of 25m/s & an angle of 30° above...
As more identical capacitors C are added to the parallel circuit shown below, the total capacitance between points A and B (a) increases (b) remains the same (c) decreases +...
A projectile, fired with unknown initial velocity, lands 19.8 s later on the side of a hill, 2840 m away horizontally and 485 m vertically above its starting point. (Ignore any effects due to air...
A projectile is fired into the air from the top of a cliff of height h = 194 m above a valley. Its initial velocity is v0 = 55.8 m/s at an angle θ = 62° above the horizontal. Where does the projectile...
1. In the circuit, what is the initial value of the current when the switch has been closed? (a) 0 A ...
A cannonball is fired from a cannon at 50.0 m/s, at an angle of 30.0° above the horizontal on level ground. The goal is to determine the distance from its starting point to its ending point. The path...
Please explain fully, using physics terms.
A spy in a speed boat is being chased down a river by government officials in a faster craft. Just as the officials' boat pulls up next to the spy's boat, both reach the edge of a 6.6 m waterfall...
A ball player hits a home run, and the baseball just clears a wall 20.0 m high located 117.0 m from home plate. The ball is hit an an angle of 35° to the horizontal, and air resistance is negligible...
You roll a ball horizontally off of the edge of a table. The instant the ball leaves the table, it is 1.00 m off the floor, and is moving horizontally. It hits the floor after traveling 0.750 m to...
The wiring in a house must be thick enough so it does not become so hot as to start a fire. What diameter must a copper wire be if it is to carry a maximum current of 39 A and produce no more than...
1. A copper pipe has an inside diameter of 3.00 cm and an outside diameter of 5.00 cm. What is the resistance of 25.0 m of this pipe? 2. The wiring in a house must be...