Falling objects, Hello, I''d like to ask, why do objects, that fall from hi...

Hello, I''d like to ask, why do objects, that fall from higher heights hit stronger that those, falling from smaller heights, if force equals mass times acceleration, and yet accel

Forces and nature,

Existing electric field, 12 joule of work has to be completed against an ex...

12 joule of work has to be completed against an existing electric field to take a charge of 0.01 C from A and B. How much is the potential difference VB-VA.

Electricity, two charge(q) each are kept 1m apart, where should third charg...

two charge(q) each are kept 1m apart, where should third charge be placed in order to get third charge -q/4

Energy barrier, a beam of electron is incident on barrier 6eV high and 0.2 ...

a beam of electron is incident on barrier 6eV high and 0.2 nm wide. find the energy in eV these should have if 1% of them are to get through the barrier.

Explain the basic concept of sonar, Explain the basic concept of sonar. ...

Explain the basic concept of sonar. Basic concept of SONAR: Sonar is based ontpo the echo-sounding technique of ultrasound. While an ultrasonic wave is transmitted by water,

Define the period and the square root of the length, What is the relationsh...

What is the relationship among the period and the square root of the length? The graph is linear, so the period is proportional to the square root of the length of the string.

An example of measured wavelength by astronomers on earth, A galaxy in the ...

A galaxy in the constellation UrsaMajor is receding from the earth at 15,000 km/s. If one of the characteristic wavelengths of the light the galaxy emits is 550 nm, what is the cor

Calculate the magnitude of the magnetic field , A 240-turn solenoid having ...

A 240-turn solenoid having a length of 21 cm and a diameter of 8.8 cm carries a current of 0.44A. Calculate the magnitude of the magnetic field inside the solenoid.

Find the voltage gain after feedback, Q. When there is no feedback, the gai...

Q. When there is no feedback, the gain of the amplifier is 100. If 5% of the output voltage is fed back into the input through a negative network, find the voltage gain after feedb