its d. velocity i just took the test on edge
The velocity of the stone when it is 5.25 m above the ground is determined as 6.93 m/s.
The velocity of the stone at the given displacement is calculated as follows;
K.E = ΔP.E
¹/₂mv² = mgh
v = √2gΔh
v = √[2(9.8)(7.7 - 5.25)]
v = 6.93 m/s
Thus, the velocity of the stone when it is 5.25 m above the ground is determined as 6.93 m/s.
Learn more about velocity here: brainly.com/question/4931057
#SPJ1
using common sense at all times
keeping the lab station clear
wearing goggles when using chemicals
Answer:
runningbetweenthelabs
Explanation:
as it is dangerous to run die to incidents like spilling chemicals, injuring yourself or someone else and also possible death if the chemical is dangerous.
An ideal ammeter has zero resistance to avoid altering the current it measures, while an ideal voltmeter has infinite resistance to prevent drawing current from the device it's measuring the voltage of.
The resistance of an ideal ammeter is zero ohms. This ensures that it doesn't interfere with the current it is measuring. An ammeter is connected in series with the circuit, and if the resistance were greater than zero, it would decrease the amount of current circulating in the circuit.
On the other hand, an ideal voltmeter has infinite resistance. This happens because a voltmeter is connected in parallel with a device to measure its voltage, and to avoid drawing current from the device, an ideal voltmeter should have infinite resistance.
#SPJ6