One hectare is defined as 10 4 m2. One acre is 4 ✕ 10 4 ft2. How many acres are in one hectare?

A truck is travelling at 30km/hr with engine delivering a driving force of 800n to the road Calculate the power developed and the work done in 25 seconds

550 J of work must be done to compress a gas to half its initial volume at constant temperature. How much work must be done to compress the gas by a factor of 11.0, starting from its initial volume?

A sample of a material has 200 radioactive particles in it today. Your great-grandmother measured 400 radioactive particles in it 100 years ago. 100 years from today, how many radioactive particles will the sample have?

If two items are equal in size, the denser one will

A simple machine does work with one motion A. true B. false

What is the particle that an atom can lose or gain in order to form a charged ion

If you have 0.306 m3 of water at 25.0°C and add 0.102 m3 of water at 95.0℃, what is the final temperature of the mixture? Use 1000 kg/m3 as the density of water at any temperature. Number O Previous ⓧ Give Up & View Solution.

If b is the amplitude of the magnetic field vector, find the complete expression for the magnetic field vector b⃗ of the wave.

An electron and a proton are separated by a distance of 1 m. What happens to the size of the force on the first electron if a second electron is placed next to the proton?

Airbags will deploy no matter from what angle your car is hit.