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3 years ago

If an object has zero acceleration, does it have to have zero velocity?

Physics

1 answer:

adelina 88 [10]3 years ago

3 0

Answer:

Yes, the velocity would also be zero.

Explanation:

Acceleration is the change in velocity over time, therefore, there has to be a change in velocity for something to accelerate. which means without acceleration, the object has no velocity.

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Which circuit has the largest equivalent resistance?.

Alexeev081 [22]

The series circuit has the higher equivalent resistance, but to find the larger equivalent resistance you have to use Ohm's law (V2=I2R2), the power dissipated by the resistor can also be found using P2=I22R2=V22R2. To find the equivalent resistance of the circuit, notice that the parallel connection of R2 and R3 is in series with R1, so the equivalent resistance is Req=R1+(1R2+1R3)−1=1.00Ω+(16.00Ω+113.00Ω)−1=5.10Ω.

Hope this helps!
Please give Brainliest!

6 0

2 years ago

3. Riddle:

beks73 [17]

Answer:

The answer is charcoal

3 0

3 years ago

Read 2 more answers

You are woken up in the morning on the farm by a rooster. The rooster is located 30 meters away on top of the 5 meter barn house

algol [13]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The velocity is $v = 18.73 \ m/s$

Explanation:

From the question we are told that

The distance of the rooster from farm house is $d = 30 \ m$

The height of the rooster from the ground is $h = 5 \ m$

The angle at which the alarm clock is thrown is $\theta = 53 ^o$

Let the velocity at which the alarm clock is thrown be v

So the horizontal component of v is mathematically represented as

$v_h = v cos \theta$

The distance covered by the alarm clock toward the horizontal direction at velocity v is

$d = v_h$

=> $d = v_h = vcos \theta * t$

=> $vcos \theta * t = 30$

substituting for $\theta$

$v (cos (53)) * t = 30$

=> $v * t = 50$

Considering the motion of the alarm clock in the vertical direction

So the vertical component of v is mathematically represented as

$v_v = vsin \theta$

The distance covered in the vertical direction is mathematically evaluated as follows

From the equation of motion we have

$h = vsin\theta * t - \frac{1}{2} g t^2$

$v* t sin\theta - 4.9t^2 = 5$

Recall $v * t = 50$

$50 \ sin \theta -4.9t^2 = 5$

substituting for $\theta$

$50 \ sin (53) -4.9t^2 = 5$

=> $t =\sqrt{7.1289}$

$t =2.673 \ s$

Now

$v * t = 50$

$v * 2.673 = 50$

=> $v = 18.73 \ m/s$

3 0

3 years ago

What are compounds considered to be

bija089 [108]

Answer:A compound is a substance formed when two or more elements are chemically joined.

Explation:Water, salt, and sugar are examples of compounds.

I hope this helps<3

7 0

3 years ago

A boy projects a ball vertically upwards with velocity v from

boyakko [2]

Answer:

yes? what is the quseten

Explanation:

v is the max speed it can go if you droped a egg and a watermelon off a roof 20ft high thay would hit the ground at the same time becuse gravaty will effect them qualy. if you drop them from a jet liner 20,000 ft up thay will hit max.v. wich depends on mass so thay will hit at differnt times.

4 0

3 years ago