answers rated A+ 2025/2026
Water freezes at 0 degrees on which scale? - correct answer ✔Celsius
Which of this is an example of international system (SI) of units? - correct answer ✔Kilogram, meter,
second
What is the value of sin(90)? - correct answer ✔1.0
The current temperature of Denton is +34 degrees Celsius, at the same time the temperature of some
places in South America is around -3 degrees. Do plus or minus signs that signify positive and negative
temperatures impost that is a vector quantity? - correct answer ✔No
Is it possible for two quantities to have the same dimensions but different units? - correct answer ✔Yes
What is the value of tan(90) - correct answer ✔Infinity
Which one or the following is the smallest length? - correct answer ✔10^7 nanometers
Alex is at position x=13 m. He then undergoes a displacement dx =-60 m. What is his final position? -
correct answer ✔-4.7m
The slope at a point on a position versus time graph of an object is? - correct answer ✔The objects
velocity at that point
Kinematics is the portion of mechanics that describes motion without any reference to which of the
following concepts? - correct answer ✔Forces
, Displacement is defined as - correct answer ✔A vector indicating the distance and direction from one
point to another
A person travels in a car along I-35 towards Oklahoma City from Denton a total distance of 70.0 km in
60.0 minutes. Which one of the following statements concerning this situation is necessarily true? -
correct answer ✔The average velocity of the car is 70.0 km/hr, due North
The speedometer on a car's dashboard measures which of the following quantities? - correct answer
✔Instantaneous velocity
For an object moving at constant velocity, the distance traveled - correct answer ✔Is the same for each
second that the object moves
Which one of the following situations does the object have no acceleration? - correct answer ✔An
elevator in a tall skyscraper moves upward at a constant speed of 9.8 m/s
What quantity is defined if an objects velocity is divided by the elapsed time as the elapsed time
becomes very small - correct answer ✔Instantaneous acceleration
When an object is in motion on a 2D x-y plane, how is the x part of the motion related to the y part of
the motion? - correct answer ✔The x and y part of the motions are independent of each other
Can a velocity of an object have a component (either in X or Y directions) equal to zero and still have
nonzero magnitude? - correct answer ✔Yes
A projectile is lunched above the ground level and lands some distance away. Which of the following
quantity remain constant (non-zero) throughout the flight.