Question 22 of 30 22. Including reaction time the stopping distance is more than 20 feet at 10 miles per hour, at 20 miles per hour it will be about: Choose one a. 30 feet b. 63 feet c. 40 feet d. 75 feet
Fixed resistors have only one ohmic value that cannot be changed or adjusted. True False
Gold is the best natural conductor of electricity, followed by copper, silver, and aluminum. True False
A force that acts away from the center of mass is also called Centric Coplanar Force Couple Concentric Moment
If an engine cannot be 100% efficient, what happens to the energy that is lost? It reproduces. It still exists, but in a different form. It disappears.
#29 This is what happens when your vehicle starts to slide on a thin layer of water or other liquid between your tires and the road. a) Speeding b)Hydroplaning c) Defensive driving
What is the energy transformation that occurs in a cel I phone in order to play music? Sound energy is transformed into chemical energy. Electrial energy is transformed into sound energy. Solar energy is transformed into thermal energy.
Theoretically in striking a ball for maximum distance all of the following should be maximized except mass of the club head projection angle velocity of the club head coefficient of restitution of the ball
Most cosmic rays penetrate deep into the Earth due to the speed at which they travel. True False
Which statement about temperature is correct? Temperature can measure the kinetic energy between two objects. Temperature can measure the heat movement between two objects. Temperature can measure the potential energy between two objects. Temperature can measure the mass transfer between two objects.
Reasoning:Explain how energy is transferred through the water.
What happens to an object when it absorbs light? A. It gets colder B. It gets warmer C. It changes material D. It becomes transparent
What happens to the total momentum of two objects after a collision? It remains the same It decreases It becomes zero It increases
14. What is the net force acting upon an object which is subjected to the following forces? 3 Newtons South 3 Newtons North 5 Newtons East 7 Newtons West 2 Newtons West 18 Newtons North 6 Newtons West 18 Newtons South
You should write the definition of the key vocabulary down here. Balanced forces Unbalanced forces Equilibrium Constant velocity Force Net force Mass Inertia Acceleration Directly proportional Inversely proportional Newton's 1st law of motion Newton's 2nd law of motion Newton's 3rd law of motion Weight
18. A force $F(x)=10x(inN)$ acts over a displacement from $x=0$ to $x=3$ m. What is the work done?
17. How much power is exerted when you lift a 60-kg rock to a height of 25 m in 30 seconds?
A 60 kg sprinter is running at a velocity of $8m/s$ during a race Calculate the sprinter's kinetic energy. 240J 480 J 3,480J 1,920 J
When using a megger to check insulation resistance to ground, which of the following would be an acceptable minimum resistance? a. $1K\Omega $ b. $5K\Omega $ c. $1M\Omega $ d. $25\Omega $
