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
Atoms are electrically neutral when They have a minimal charge. They have a balanced number of protons and neutrons. They have a balanced number of protons and electrons. They have no valance electrons.
2. Suppose that hot coffee has a temperature of $90^{\circ }C$ in the coffee pot.You pour a serving of volume of 0.10 L into a ceramic coffee mug (specific heat $940J/kg^{\circ }C)$ that has a mass of 0.30 kg and is initially at $20^{\circ }C$ . What is the temperature of your coffee when the coffee and mug reach thermal equilibrium?
Ultraviolet (UV) radiation X-ray radiation, and some chemicals are all: a causes of mutations. b used in barbecuing. c treatments against radiation contamination. d none of these
What happens when an object vibrates in air? A. Light waves form B. Molecules bump into each other C. Energy disappears D. Space expands
16. A student calculates speed using the formula $speed=distance\div time$ Why is this formula useful? A. It tells how far an object can fall B. It shows how fast an object moves C. It explains why objects stop D. It measures acceleration
What is the wavelength of a 440 Hz sound traveling with a speed of $347m/s$ $Answer=$ $\square $
If Star A has three times the surface temperature of the Sun but has the same luminosity as the Sun, the radius of star A must be __ the radius of the Sun. $1/3$ 3 times $1/9$ 81 times
10. If you move a magnet in and out of a coil faster will the induced current be stronger or weaker? Explain.
16 of 28 Concepts completed Fill in the Blank Question A $\square $ scale can be used to exert a constant unbalanced force. e. It contains a $\square $ that stretches proportionally to the $\square $ of the applied force. C Need help? Review these concept resources. (1) Read About the Concept
the smallest unit of an element,the building block of matter Name the four Fundamental Forces from strongest to weakest subatomic particles Coulomb's Law atom
