How many moles of MgCl2 are there in 348 g of the compound?

2. A car is moving with a constant speed of 10m/s. What is the total distance the car travels in 2 minutes?

Define work and power

A student conducts an experiment in which a cart is pulled by a variable applied force during a 2sec time interval. In trial 1, the student exerts the force on a cart of mass M. In trial 2, the student exerts the force on a cart of mass 3M.

Two students are discussing the Sun. Which student is correct? Student 1: Nuclear fusion powers the Sun, so activity like sunspots and flares must be caused by a change in the fusion rate or the type of fusion.

8 Grade Science Explain how a Lava lamp demonstrates convection currents.

Which example best represents translational kinetic energy? a plucked string on a guitar the moving blades of a ceiling fan a spinning top a tuning fork struck on a rubber block an apple falling from a tree

Light travels 186 000 miles per second. how many miles dose light travel in one year

How long can you play tennis on the 949kJ of energy in a candy bar? Assume that the average power consumption for a person playing tennis is 440W.

Consider a situation where you are playing air hockey with a friend. The table shoots small streams of air upward to keep the puck afloat and to minimize friction. When you barely tap the puck forward, it A. slows and stops. B.

At room temperature of 30 degree celsius, a glass of water takes one minute to cool from 80 degree celsius to 60 degree Celsius. How long will it take to further cool from 60 degree celsius to 50 degree celsius?