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My name is Ann [436]
3 years ago
5

The unit of electrical current is the ampere (A).

Physics
1 answer:
IrinaVladis [17]3 years ago
4 0

Answer:

option B

Explanation:

Current unit is ampere (A)

Ampere will be equivalent to = ?

we know,

Current can be define as the charge per unit time

I = \dfrac{Q}{t}

unit of charge(Q) is coulomb which is equal to C.

unit of time(t) is equal to 's'.

now,

I = \dfrac{C}{s}

unit of I = C/s

ampere(A) is equivalent to C/s

The correct answer is option B

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Friction is a surface force that opposes relative motion.

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A runner moves west with an initial velocity of 4 m/s. She accelerates 3 m/s2 for 30 seconds. The runner's final velocity is
Firlakuza [10]

Answer:

v = 94m/s

Explanation:

Using the first equation of motion

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3 0
3 years ago
What is the speed of a commercial jet which travels form New York to Los Angeles (4800) in 6 hours
Colt1911 [192]

Answer:

Speed = 800km}/hr

Explanation:

Given

Distance = 4800km

Time = 6hr

Required

Determine the speed of the jet

The speed is calculated as:

Speed = \frac{Distance}{Time}

Substitute 4800 km for Distance and 6hr for Time

Speed = \frac{4800km}{6hr}

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<em>Hence, the speed of the commercial jet is 800km/hr</em>

8 0
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A hockey player uses a hockey stick to hit a puck such that the stick provides an applied force on the puck The puck travels for
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Answer:

Explanation:

Let's analyze the situation presented in order to know which answer is correct.

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The correct answer is:

C)           Since there is no frictional force exerted on the puck, a normal force is not exerted on the puck, but the gravitational force is exerted on the puck

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