Ben carries a 200N suitcase up here flights of stairs (a height of 10m) and then pushes it with a horizontal force of 50N at a constant force of 0.5M/s for a horizontal distance of 35m. How much work...

Ben carries a 200N suitcase up here flights of stairs (a height of 10m) and then pushes it with a horizontal force of 50N at a constant force of 0.5M/s for a horizontal distance of 35m. How much work...

A 0.40-kg ice cube at −10.2° C is placed in the lemonade. What is the final temperature of the system, and the amount of ice (if any) remaining? Ignore any heat exchange with the bowl or the...

from 0.81 kg of water at 0 degrees Celsius to make ice cubes at 0 degrees Celsius.?

In order to accelerate upwards the pilor increases the angular speed of the main rotor to 500 rpm in 10 seconds. The blades consist of three, 4 m long uniforms rods, each of mass 150 kg. a)...

a)If constant torque is applied to the wheel and it comes to rest in 2 seconds, what is the magnitude of the angular acceleration? b) Calculate the magnitude of the torque required to bring the...

The merry go round spins freely (w/out friction) at 10 rpm. What is the total angular momentum of the system? Assume that the child is a point mass.

find laplace transform of t2 e-t cos at

A positively charged object is brought near but not in contact with the top of an uncharged gold leaf electroscope. The experimenter then briefly touches the electroscope with a finger. The finger...

What volume of iron (density 7.87 g/cm3) would be required to balance a 1.00 cm3 sample of lead (density 11.4 g/cm3) on a two-pan laboratory balance?

A slab of nonconductive material is perpendicular to the z-axis, centered on the origin, has a total thickness of 40 mm, and is infinite along the other two axes. It has a uniform volumetric charge...

Derive a symbolic expression for the speed v at which a particle of charge -Q and mass m must move to hold itself in a circular orbit of radius r centered on a massless particle of charge 4Q that...

An infinite number of identical charged rings of radius w and charge Q are arranged coaxially along the z- axis such that each adjacent pair is a distance w apart and one lies with the origin in its...

Find the electric field vector at the origin due to an infinitely long, straight line bearing a uniform linear charge density of 360 fC/m. The line charge is tilted at π/4 radians such that it runs...

I'm editing this problem because I was able to get a couple of the answers, but I still need help on the rest. An electromagnatic wave is traveling in vacuum with frequency 7 x 1014 Hz. The wave has...

C1 and C2 are capacitors in parallel. C3 is in series with C12. C1=16.6 microF, C2=8.2 microF, C3=0.3 microF. A 1.52 V battery is connected in this combination. Find the charge stored...

If I wanted to build a 27ft jump how do i bu it and how fast do i hit it

A phonograph turntable driven by an electric motor accelerates at a constant rate (i.e., constant angular acceleration) from 0 to 33.33 revolutions per minute in 2 minutes. The turntable is a...

Object A emits most strongly at 400 nm, while object B emits most strongly at 800 nm. What can we say about their relative temperatures? A’s temperature is the same as B’s. Nothing. Temperature...

A spring requires a force of 25 N to produce an extension of 2 cm in it. What is the work done in further extending it by 3 cm.

A ball is thrown upward with an initial velocity of 19.6m/s.what is the max height the ball will reach before falling back down? Just want to check if my answer is correct, I ended...

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