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
What is the relationship between velocity and acceleration? Acceleration is the change in velocity over time. Velocity is the change in acceleration over time. Velocity and acceleration are equal and opposite. Velocity and acceleration have nothing to do with each other.
19. The process by which atomic nuclei spontaneously decay is called relative dating radioactivity erosion deposition 20. The time it takes for 50 percent of the nuclei in a radioactive sample to decay to its stable isotope is called the daughter product geologic time the half-life the half-time 21. The scientist who developed the theory of evolution was Harry Hess James Hutton Charles Darwin William Smith
Radloactive nuclel undergo decay because they are unstable. a TRUE b FALSE
Which of the following would cause a change in the speed of a sound wave? a the wave being made by a larger vibration b the wave moving through water C the wave changing medium from a gas to a liquid d the wave being made by a smaller vibration e none of the above
A man pulls a vacuum forward 13.6 m with a force of 33.9 N at a $55.0^{\circ }$ angle. How much work is being done to the vacuum by the man? $W=[?]J$
Select the cause of evaporation. Waves from the ocean Energy in the clouds Heat from the Sun Rain on the ground
True/False: The mass of the object affects the rate at which it falls. True False
If more force pushes two surfaces together, then the friction between the surfaces will __ stay the same increase decrease
Which of the following is the ideal way to apply pressure onto pedals? Gently at first and then with full force Stomping with force, so it reacts With your entire body weight behind it By pressing gradually
Select all of the types of electromagnetic waves that are ionizing radiation. gamma infrared microwave ultraviolet X-ray
