Scientific notation is used in science because
a. it makes it easy to write big or small numbers.
b. all astronomical distances are expressed in metric units.
c. it makes conversions between units easy.
d. all of the above
A
You might also like to view...
The fact that the cosmic microwave background radiation has almost exactly the same temperature in every direction is referred to as the _______________ problem
Fill in the blank(s) with correct word
A truck is using a hook to tow a car whose mass is one quarter that of the truck. If the force exerted by the truck on the car is 6000 N, then the force exerted by the car on the truck is
A) 12000 N. B) 24000 N. C) 1500 N. D) 6000 N. E) We need to know if the car is accelerating to answer this question.
Rotational Kinetic Energy: A solid uniform ball of mass 1.0 kg and radius 1.0 cm starts from rest and rolls down a 1.0-m high ramp. There is enough friction on the ramp to prevent the ball from slipping as it rolls down.(a) What is the forward speed of the ball when it reaches the bottom of the ramp?(b) What would be the forward speed of the ball if there were no friction on the ramp?(c) Since the ball starts from the same height in both cases, why is the speed different?
What will be an ideal response?
A 320-g air track cart traveling at 1.25 m/s collides elastically with a stationary 270-g cart. What is the speed of the 320-g cart after the collision?
A) 0.678 m/s B) 0.106 m/s C) 0.212 m/s D) 1.36 m/s E) 1.14 m/s