A hot iron ball is dropped into 200.0 g of cool water. The water temperature increases by 2.0 C and the temperature of the ball decreases by 18.6 C. What is the mass of the ball? waters specific heat is 4184 (J/kg•C)

Of the following machines, which is not related to the others? ramp screw lever

Technician A says that low pressure smoke installed in the fuel system can be used to check for leaks. Technicians B says that nitrogen under low pressure can be installed in the fuel system to check for leaks. Which technician is correct? A.

Who is Issac Newton's? What is gravitation?

At t = 0 the components of a radio-controlled car's velocity are vx = 0.5 m/s and vy = 1.2 m/s. Find the components of the car's velocity at t = 4.

The ice cube melting is an example of a and the water evaporating is an example of a

A rock is thrown from a cliff and hits the ground five seconds later at a distance of 50 m from the cliff how high was a cliff

A 15.0 m long plane is inclined at 30.0 degrees. If the coefficient of friction is 0.426, what force is required to move a 40.0 kg mass from rest at the bottom on the plane to the top of the plane with a final velocity of 8.00 m/s?

In a pig-calling contest, a caller produces a sound with an intensity level of 60 db. how many such callers would be required to reach the pain level of 120 db? 2 incorrect: your answer is incorrect.

Why is the use of scientific names important in biology?

1) what is a calorie?