Convert 116 degrees Fahrenheit to Celsius. (Calculate to 2 decimals.) square
Convert 1758 milliwatts to watts. (Calculate to 3 decimals.) square
Convert 70.443 amperes to milliamperes. (Calculate to 2 decimals.) square
Isaac Newton defined important laws in which branch of science? A Climate change. Chemistry. Physics. The periodic table.
What is the Kelvin temperature at 24^circ C 249 K 11.4 K -297K -249K 297 K
Which stellar classification has the coolest temperature? A G m
A 125.6 volt device is connected to an 6.8 ohm resistive-heating element. How much power in-watts is being produced by the heating element? (Calculate to 2 decimal places). square
Which power toothbrush action involves bristles that vibrate side to side or up and down with high amplitude and high frequency? Side to side Oscillating-rotating Sonic Circular
The ratio of the speed of light in a vacuum to the speed of light in a medium is known as the index of refraction reflection diffraction none of these
An object is dropped from a height of 25 meters. At what velocity will it hit the ground? A. 7.0meters/second B. 11meters/second c 22meters/second D. 49meters/second E. 70meters/second
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
