Physics Answers

When a soccer ball is rolling along a Grassy feild it does not continue moving forward. What is acting upon it to change its state

Assume that lightning strikes completely vertically and that a known current flows from the cloud into the ground for some time. We want to detect a lightning strike with the help of a coil that is connected directly to a voltmeter. Explain which phenomenon is responsible for lightning detection. Sketch the magnetic field of lightning and how the coil should be oriented for the effect to be strongest.

Four point charges arw equally separated by 1.00m in air as shown.If q1=3.0nC,q2=4.0nC,q3=2.0nC,q4=5.0nC,what is the electric field at a point halfway between q2 and q3?

1.What is the magnitude and direction of the field at 0.25 m from a -5.6×10^-6 C point charge.

A bicycle wheel with a radius of 36cm makes 40 revolutions in 60s (a)what is it's angular velocity

(B) what linear distance will the wheel travel?

A baseball is shut with an initial speed of 12.0m/s.

(a) how far does it go in the horizontal direction if it is shut at angle (I) 15° (ii) 50° (III) 45 and (iv) 60° above the horizontal

(B) what is the maximum height reached in the 4 cases?

A baseball is shut with an initial speed of 12.0m/s.

(a) how far does it go in the horizontal direction if it is shut at angle (I) 15° (ii) 50° (III) 45 and (iv) 60° above the horizontal

Compute the kenetic energy of a 4500kg truck at the instant it's velocity is 24m/s.

A vacuum cleaner was pulled with a force of 62.0N at an angle of 60.0° with the horizontal.calculate the work done by the force on the vacuum cleaner as the vacuum is displaced 480cm to the right

What is differential amplifier? Find the voltage gain for the transistor Q1 of the differential amplifier?