The sub atomic particle that contributes mass and a single positive electrical charge is the __ A proton B neutron C electron D megatron E nucleus
1. You can reduce the forces on you and your car during an unavoidable crash if you are able to redirect your path toward objects such as __ A. I trees, concrete enbankment, wall B. bushes, snow, soft dirt
What does the mass defect measure? A. The energy required to make a reaction happen B. The difference in mass between protons and neutrons C. The energy required to form a nucleus from its parts D. The mass of particles created in a nuclear reaction
The natural force that pulls vehicles towards the road is __ C gravity centripetal force friction
Not including thinking distance, lawful brakes must stop a car at 20 miles per hour within how many feet? 25 feet 10 feet 30 feet 20 feet
How is it possible to produce a magnetic field around a non -magnetic wire? How can the orientation of the lines of force in that magnetic field be determined? square
Calculate the energy of a red light photon with a frequency of 5.00times 10^14
Multiple Choice Question Which class is a lever with the effort between the fulcrum and the resistance? Third Second First
What are the purposes of the gas syringe used in this experiment? to measure the volume of the gas to measure the pressure of the gas to maintain a constant temperature to maintain a constant volume to maintain a constant pressure
Heat sinks vary in size and shape, but have only one purpose. True False
In the Atkinson and Shiffrin modal model information can be lost by both decay and interference at each stage. True False
Which object has the most inertia? ping pong ball feather bowling ball
8. What factor determines if lightning bolts are classified as hot or cold? A. lightning's temperature B. lightning's brightness C. likelihood of starting a fire D. amount of heat given off
4. What is the voltage drop across a shorted parallel component in a series-parallel circuit? A Zero volts B The applied voltage It depends on total current D It depends on total resistance
A stabilized spin is not different from a stall in any element other than Speed Rotation G force
A rock thrown vertically upward from the surface of the moon at a velocity of $16m/sec$ reaches a height of $s=16t-0.8t^{2}$ meters in t sec. a. Find the rock's velocity and acceleration at time t. b. How long does it take the rock to reach its highest point? c. How high does the rock go? d. How long does it take the rock to reach half its maximum height? e. How long is the rock aloft? a. Find the rock's velocity at time t. $v=16-1.6tm/s$ Find the rock's acceleration at time t. $a=\square m/s^{2}$ (Simplify your answer. Use integers or decimals for any numbers in the expression.)
A weightlifter lifts an 120-kg barbell at a height of 2.4 meters above the ground. If it took 2.8 seconds to complete this lift, what was the weightlifter's power output in watts? Round to the nearest integer. $\square $
What is the value of the normal force if the coefficient of kinetic friction is 0.22 and the kinetic frictional force is 40 newtons? A. 8.8 newtons B. 40 newtons C. 80 newtons D. $1.8\times 10^{2}$ 8 x 10 newtons
What type of evidence would a UV light be used to detect? DNA only Firearms residue Latent prints or bodily fluids Bullet trajectories
What model states that particles of matter are always in motion?
