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4 years ago

Calculate the acceleration using the formula acceleration = (final velocity - initial velocity)/time

Physics

1 answer:

kari74 [83]4 years ago

4 0

Explanation:

Acceleration is defined as the rate of change of velocity with time. In most acceleration problems:

the given parameters will be;

Initial velocity

final velocity

time.

Using the equation below:

Acceleration = $\frac{Final velocity - initial velocity}{time}$

one can solve for acceleration. The unit is usually in m/s²

Learn more:

velocity brainly.com/question/10962624

#learnwithBrainly

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Electric fields and magnetic fields often occur together true or false

Svet_ta [14]

TRUE
They propagate perpendicular to each other in the case of an Electromagnetic waves....
Both can be seen in the case of a moving charge

Hope this helps!

3 0

3 years ago

Read 2 more answers

Using the superposition method, calculate the current through R5 in Figure 8-71

Natasha2012 [34]

by superposition method we can find current in R5

here first let say only 2V battery is present in the circuit

now the equivalent resistance to be found for which we can say

2.2 k ohm and 1 k ohm is connected in parallel

$r_1 = \frac{2.2 * 1}{2.2 + 1}$

$r_1 = 0.6875 k ohm$

now it is in series with 1 k ohm and then that part is in parallel with 2.2 k ohm

$r_2 = \frac{2.2* (1+0.6875)}{2.2 + (1+0.6875)}$

$r_2 = 0.95 k ohm$

now the current flowing through the battery is

$i = \frac{2}{1 + 0.95} = 1.02 mA$

now this will divide into R3 and R2 so current flowing in R3 will be

$i_1 = \frac{2.2}{2.2+1.6875}*1.02 = 0.58 mA$

now this will again divide in R4 and R5

so current in R5 will be

$i_5 = \frac{R_4}{R_4 + R_5}* i_1$

$i_5 = 0.18 mA$

now when only 3 V battery is present in the circuit

R1 and R2 is in parallel and then it is in series with R3

so parallel combination will be

$r_1 = \frac{1*2.2}{2.2 +1} = 0.6875k ohm$

also after its series with R3

$r_2 = 1 + 0.6875 = 1.6875 k ohm$

now it is in parallel with R5 on other side

$r_3 = \frac{1.6875 * 2.2}{1.6875 + 2.2} = 0.95 k ohm$

now current through the battery will be given as

$i = \frac{3}{1 + 0.95} = 1.53 mA$

now it is divide in r2 and R5

so current in R5 is given as

$i_5 = \frac{r_2}{r_2 + R_5}*i$

$i_5 = \frac{1.6875}{2.2 + 1.6875} * 1.53$

$i_5 = 0.67 mA$

now the total current in R5 will be given by super position which is

$i = 0.67 + 0.18 = 0.85 mA$

so there is 0.85 mA current through R5 resistance

8 0

3 years ago

Mary is traveling at a speed of 35 m/s sees a squirrel run across the road in front of her and slams on the brakes. Four seconds

Simora [160]

After 4 seconds the velocity function attains a=8.75m/s².

Given-

Velocity= 35m/s

time=4sec

To find out acceleration, we can understand the following-

Acceleration means rate of change of velocity.

In this question the velocity depreciates to zero i.e. the slope of the graph falls off with negative slope.

This value has negative impact on force as the resultant force is outcome of application of brakes where V=0 as time progresses.

Mathematically, $a=\frac{dv}{dt}$

v- means velocity .

calculations-

a=35/4

a=8.75m/s²

To find out about acceleration -

<u>brainly.com/question/22935373</u>

#SPJ4

5 0

1 year ago

The variable x stands for

snow_tiger [21]

Answer:

The letter "x" is often used in algebra to mean a value that is not yet known

Explanation:

7 0

3 years ago

Which term describes the movement of an object under the influence of gravity without air resistance

Ainat [17]

The term that describes the movement of an object under the influence of gravity without air resistance is free fall

5 0

3 years ago