How much heat is needed to raise the temperature of 81g of water by 79oC?

The walls of a room have a total of 60 square meters. how many pints of paint will it take to cover all the walls if a single pint can cover 36 ft squared

A 2 kg ball is thrown upward with a velocity of 15 m/s. What is the kinetic energy of the ball as it is being thrown?

Identify the incorrect statement about a single motor unit. - Fine motor skills depend on the development of small motor units. - The smaller the number of muscle fibers, the more precise the movement.

For each of the cases listed below, decide whether or not the motion described is an example of acceleration: (T/F) 1) a roller coaster as it starts to roll down the track 2) a ball tossed straight up, at the peak of its trajectory 3) a planet

A resistor has 1.50 V potential difference across its ends. it develops thermal energy at a rate of 327 W. What is the current in the resistor? A. 68.8 A B. 14.5 A C. 45.9 A D. 21.8 A

What objects are found in the sloar system solar system

For slowly moving objects, the drag force in water is approximately proportional to the speed of the object. The Escherichia coli (E. coli) bacterium propels itself slowly through water by means of long, thin structures called flagella.

How do electric and magnetic fields interact to create electromagnets?

Select the correct answer from each drop-down Two magnets are placed as shown in the 00 В D between the poles B and . And the force of between the poles A and DIS Reset Next

Two main pieces of evidence support the big bang theory and the idea that our universe is continually expanding: Doppler shift and cosmic background radiation. Explain how these phenomena provide evidence of the expansion of the universe.