Answer:
A car
Explanation:
A car can travel 100 m in 5 seconds
Hope this helps!
The required probability is 3/4.We have to compute the probability
P(Female |Junior) because we have to find the probability of the female student and the given condition is that the student is junior.
Determine the total number of juniors.Juniors=2+6=8
<h3>What is the probability?</h3>
Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true. The probability of an event is a number between 0 and 1, where, roughly speaking, 0 indicates the impossibility of the event and 1 indicates certainty.
Since the number of females who are junior is 6, determine the required probability.
P(Female|Junior)=6/8=3/4
Therefore, the required probability is 3/4.
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As the train blows its whistle towards you, the wavelength is shorter than the sound of the whistle at rest.
<h3>What is wavelength?</h3>
Wavelength is the distance traveled by a wave in a given period of time.
Relationship between wavelength, speed and frequency of sound
v = fλ
where;
- v is the speed of the sound
- f is the frequency of the sound
- λ is the wavelength of the sound
As the frequency of the sound increases, the wavelength of the sound decreases.
Thus, as the train blows its whistle towards you, the wavelength is shorter than the sound of the whistle at rest.
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Mass of bottle + cooking oil = 1.3 kg
Mass of bottle + 1/2 cooking oil = 0.9 kg
Thus half cooking oil = 1.3 - 0.9
= 0.4 kg
Mass of cooking oil in a full bottle = 0.4 × 2
= 0.8 kg
Therefore the mass of the empty bottle
= 1.3 - 0.8
= 0.5 kg
Answer:
n an electrometer, it is built in such a way that its resistance in parallel is extremely high
Ground in a circuit is a reference point from which voltages are measured
all the instruments must be grounded and we must ground ourselves
Explanation:
When you build a voltmeter you have a resistance in parallel with the galvanometer, therefore when measuring the voltage of a circuit, so that there is no effect (load effect) by the voltmeter, a resistance must be much greater than the resistance where it is is measuring.
In an electrometer, it is built in such a way that its resistance in parallel is extremely high in the order of 10¹²Ω, so its load effect is very small and can be measured with high resistance mu
Electric ground in home and industrial installations is a protection system consisting of a metal piece connected to a buried ground electrode.
Ground in a circuit is a reference point from which voltages are measured and is common to all parts of the circuit
In an experiment where an electrometer is used, all the instruments must be grounded and we must ground ourselves, since it must be an instrument where very small voltages are measured at high impedances.
