About when was the sail developed, making travel possible on the open water?

A car accelerates along? the road. Which force actually moves the car

An electric refrigerator rated 400 W operates 8 hours a day. Find the energy used per day in KWh.

What does it mean axis 1-1'?

The equation for distance is d = st. If a car has a speed of 35 m/s, how long will it take to go 100 m? A. 3500 s B. 2.9 s C. 5.9 s D. 65 s

When is a body said to be at rest

A boulder on top of a cliff has a potential energy of 12400J. How high above is the boulder?

If the graph represents speed what is measured on the x and y axes

It is difficult to lift a heavy stone than the lighter one on the earth, why?

The vapor pressure of ethanol at 25 degrees C is 7.83 kPa. Calculate the vapor pressure in atm. Round answer to 3 significant digits.

According to Newton's second law of motion acceleration or an object depends upon the ___ of the object and the ___ Acting on it. I'm confused on what the blanks are. I can't find them.