How much heat would be needed to completely evaporate 43.5 g of boiling water at a temperature of 100 °C? Express your answer in units of joules.

1. Which of the following is an example of a second-class lever? wheelbarrow broom crowbar shovel 2. Which of the following is an example of a first-class lever? rake nut cracker seesaw elbow joint

A mass m is split into two parts, m and m-m, which are then separated by a certain distance. what ratio m/m maximizes the magnitude of the gravitational force between the parts

Anna litical and noah formula are doing the cart and the brick lab. they drop a brick on a 2.6 kg cart moving at 28.2 cm/s. after the collision, the dropped brick and cart are moving together with a velocity of 15.7 cm/s.

Suppose that data are stored on 8.54-gbyte single-sided, double-layer dvds that weigh 15 g each. suppose that an eurostar rail service train, london to paris via chunnel, carries 10 4 kg of these dvds.

3. Do you have an issue with the NSA monitoring citizens' phone calls, text messages, emails, etc.?

Match the example to the type of equipment category it fits best in. A Gym bag, workout clothes, hygiene essentials, proper shoes, water, ipod. B Hockey Stick Baseball Glove. Basketball. Pads. Helmet.

Energy transformations in a bouncy house

High voltage power is often carried in wire bundles made up of individual strands. In your initial post to the discussion, discuss the forces on the strands of wire due to the current flowing through them.

The climate of an area is based on A) Rivers and lakes B) natural resources. C) mountain and valleys. D) Precipitation and temperture

California has been spending money to establish desalination plants. The state is preparing for