Hey, I'm at my wit's end when it comes to thermodynamics. Apparently, I was given this little assignment from my lecturer to solve it at home. I need help in solving this, really...

Hey, I'm at my wit's end when it comes to thermodynamics. Apparently, I was given this little assignment from my lecturer to solve it at home. I need help in solving this, really...

A playground ride consists of a disk of mass M = 52 kg and radius R = 2.3 m mounted on a low-friction axle. A child of mass m = 28 kg runs at speed v = 2.5 m/s on a line tangential to the disk and...

How come when a group of people holding hands touch a fence, why does everyone receive an electric shock, surely the electricity should ground on the first person and he should be the only one electrocuted...

A playground ride consists of a disk of mass M = 52 kg and radius R = 2.3 m mounted on a low-friction axle. A child of mass m = 28 kg runs at speed v = 2.5 m/s on a line tangential to the disk and...

Suppose a company decides to ship 150 000 W over 2.0 Ω transmission lines at 560 V. a) How much power is lost? (and.I = 143,498 W) b) What is the efficiency of transmission?(ans...

Starting from rest, you pull the string with a constant force F = 6 N along a nearly frictionless surface. At the instant when the center of the disk has moved a distance x = 0.12 m, your hand has...

A sled with a mass of 20 kg slides along a frictionless ice at 4.5 m/s. It then crosses a rough patch of snow that exerts a friction force of 12N. How far does it slide on the snow before coming to...

A positive charge of 3 nC is placed at the origin and a positive charge of 6.75 nC is placed on the x-axis 5 cm. A positive test charge of 2 nC is placed on the x-axis a distance d, between...

A circuit comprises a 9 V battery which is connected in series to two 1 MΩ resistors that are in a parallel combination. The circuit is then completed by an open switch and two 50 nF capacitors...

The piston rod of a double-acting hydraulic cylinder is 20 cm diameter and 4 m long. The piston has a diameter of 40 cm, and is subjected to 10 MN/m2 water pressure on one side and 3...

physics question: A police car drives 230 km with a constant speed of 120km/h and another 170 km with a constant speed of 60km/h.

Combing your hair leads to excess electrons on the comb. How fast would you have to move the comb up and down to produce green light? (Assume λ = 569 nm.)

I cant get the math right can you give me thees calculations its form my science project and i just don't know enough physics to answer them. Im trying to convert the impact and pressure of giraffe...

Ken Reid (mass 75kg) sits on the back of a shell truck which is traveling east. He pulls with a constant force on a rope which slopes down 30* to the belt of Todd Brooke's (mass 65kg). A second rope...

A force of 10 newton makes an angle of 30 degree with y axis. Find out the magnitude of x component.

The schwarzchild radius of a black hole containg 7.95 x 10 ^ 28 kg is ___ meters

What can be said about the total energy and work if we looked at the system as the ball + earth instead of just the ball.

For a spectrograph fed with an f/3.32 beam, and with an f/1.33 camera, what is the magnification factor of the entrance slit at the detector focal plane (larger or smaller)? The question...

what speed does the block slide across the table?

In gold foil experiment number of deflected alpha particles at angle 90° is 63 than number of alpha particle deflected at 120° is - a) 112 b) 42 c) 56 d) 28