What are the 4 significant figures of 31,546,000?

A block of mass m = 1.5 kg is released from rest at a height of H = 0.81 m on a curved frictionless ramp. At the foot of the ramp is a spring whose spring constant is k = 250.0 N/m. What is the maximum compression of the spring, x?

A motorcycle is waiting at a stoplight. When it finally turns green, the motorcycle accelerated from rest at a rate of a 7.45 m/s 2 for a time of 3.90 seconds. Determine the displacement of the motorcycle during this time period.

A 70-kg person walks at a steady pace of 4.4 km/h on a treadmill at a 5.0% grade (that is, the vertical distance covered is 5.0% of the horizontal distance covered).

What is the most relevant characteristic of motion

What are two interchangeable terms with radiation?

Kathy tests her new sports car by racing with Stan, an experienced racer. Both start from rest, but Kathy leaves the starting line 1.00 s after Stan does. Stan moves with a constant acceleration of 3.1 m/s2 while Kathy maintains an acceleration of 4.

A 0.0010-kg pellet is fired at a speed of 50.0m/s at a motionless 0.35-kg piece of balsa wood. When the pellet hits the wood, it sticks in the wood and they slide off together. With what speed do they slide?

Jim measures the count rate of a sample of americium-241 as 120cpm. Roughly how long would it take for the count rate to fall below 4 cpm. Show your working

Explain and give an example of newtons 3rd law of motion

Which term best describes the two substances that react to form salt?