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A block with a volume of 12 cm3 has a density of 3 g/cm3. The block is cut into two pieces. One piece has a volume of 8 cm3, and the other piece has a volume of 4 cm3. What are the densities of the two pieces?

An object has a mass of 8.00kg. What is the gravitational force on the object by the earth

Which of these is an example of a chemical change? Question 4 options: fireworks exploding grinding powder melting cheese ironing a shirt

A long solenoid that has 1 170 turns uniformly distributed over a length of 0.420 m produces a magnetic field of magnitude 1.00 10-4 T at its center. What current is required in the windings for that to occur?

What will be the acceleration due to gravity at up planet whose mass is 8 times the mass of the earth and whose radius is twice that of the earth? g=10

A 4.2 cm diameter circular loop of wire is in a 1.14 T magnetic field. The loop is removed from the field in 0.18 s. Assume that the loop is perpendicular to the magnetic field. What is the average induced emf?

When an ocean plate converges with another plate, what is created on the seafloor at the line of convergence?

Calculate the angle of refraction of 30.0° light shines from water into ice. The indices of refraction for water and ice are 1.36 and 1.31, respectively. A) 19.8° B) 31.3° C) 40.9° D) 64.0°

What is the length of a simple pendulum with a period of 2.0 s?

How many electrons are necessary to produce 1.0 c of negative charge? (e = 1.60 Ã 10-19 c) ?