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How much potential energy does a 55-kg person gain when she walks to the top of a hill 20 m tall? (PE= mass x acceleration of gravity x height)
75J
345.8 m/s
periods
11
0.25V
Be
490 J
2.3 m/s/s
A car is traveling at a constant speed of 12 m/s. When the driver accelerates, the car reaches a speed of 26 m/s in 6 s. What is the average acceleration of the car? (acceleration = change in velocity/ change in time)
75J
345.8 m/s
periods
11
0.25V
Be
490 J
2.3 m/s/s
Which element is an alkaline earth metal?
75J
345.8 m/s
periods
11
0.25V
Be
490 J
2.3 m/s/s
In the periodic table, the rows are called
75J
345.8 m/s
periods
11
0.25V
Be
490 J
2.3 m/s/s
A toaster is plugged into a wall outlet that has a voltage of 110 volts. If the toaster's resistance is 10 ohms, what current runs through the toaster? I= V divided by R (you need to know what these symbols represent)
75J
345.8 m/s
periods
11
0.25V
Be
490 J
2.3 m/s/s
A sound wave has a frequency of 247 Hz and a wavelength of 1.4 m. What is the speed of the sound wave in air? Use the following equation v= f x ≀
75J
345.8 m/s
periods
11
0.25V
Be
490 J
2.3 m/s/s
A series circuit has a current of 3 A. The circuit contains a 12 ohm resistor. What is the voltage of the current (use I=V/R
75J
345.8 m/s
periods
11
0.25V
Be
490 J
2.3 m/s/s
A ball with a mass of 5kg is dropped from a resting position 10m above the ground. What is the potential energy of the ball just before it is dropped? (PE= mass x acceleration of gravity x height)
75J
345.8 m/s
periods
11
0.25V
Be
490 J
2.3 m/s/s
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