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V125BC [204]
3 years ago
12

When resistors are connected in series, we can be certain that:______

Physics
1 answer:
Debora [2.8K]3 years ago
7 0

Answer:

A) the same current flows in each one.

Explanation:

When resistors are connected in series, Ohm's law states that the current flowing through each resistor is the same. Since it is similar to Ohm's law for a single resistor, except that the series resistors appear as a sum. Then, the total resistance of a series circuit is equal to the sum of the individual resistors.

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A billiard ball moving at 0.5 m/s strikes another identical billiard ball, which is at rest, in an elastic head-on collision on
NikAS [45]

Answer: assuming that the billiard balls are of identical weight the impacted billiard ball will move forward at around 0.5m/s (not considering energy conservation). The ball impacting the 2nd one would stop because most of its Kinetic energy would have been transferred into the not moving ball.

Explanation: hope this helps!

4 0
3 years ago
6A certain load and set of slings create a 20-degree angle between the load and each sling leg. Using a spreader for the same li
Otrada [13]

Solution:

The angle between the sling and the load is 20^{\circ}

So the  tension in each sling can be calculated as

Sin \theta = Mg => T = \frac{Mg}{2Sin\theta}

Sin \theta=> \frac{Mg}{2Sin 20^{\circ}}

Where    

M is the mass of the load

The Horizontal reaction on the sling will be inward.

After using the spreader, the new angle between sling and load is 60^{\circ}, the tension in the sling will be  

T= \frac{Mg}{2 Sin 60^{\circ}} = \frac{Mg}{2 Sin 20^{\circ}}

The tension will be same as before in the sling move away through the spreader at an angle more than 90 degree the horizontal force will act opposite and will be outward

5 0
3 years ago
An armada of spaceships that is 1.60 ly long (in its rest frame) moves with speed 0.800c relative to the ground station in frame
miskamm [114]

Answer:

(a). The trip take a time is 3.61 year.

(b). The trip take a time is 3.96 year.

(c). The trip take a time is 8.73 year.

Explanation:

Given that,

Length = 1.60 ly

Speed of spaceships= 0.800c

Speed of messenger = 0.910 c

(a). We need to calculate the velocity of armada

Using formula of velocity

v'=\dfrac{v-v_{m}}{1-\dfrac{vv_{m}}{c^2}}

Put the value into the formula

v'=\dfrac{0.800c-0.910c}{1-\dfrac{0.800\times0.910 c^2}{c^2}}

v'=\dfrac{-0.11c}{1-0.800\times0.910}

v'=-0.404c

We need to calculate the length

Using formula of length

l=l'\sqrt{1-\dfrac{v'^2}{c^2}

Put the value into the formula

l=1.60\sqrt{1-(-0.404)^2}

l=1.46\ ly

We need to calculate the length of the trip

Using formula of time

t=\dfrac{l}{|v'|}

Put the value into the formula

t=\dfrac{1.46}{0.404}

t=3.61\ year

(b). If the armada's rest frame

We need to calculate the length

Using formula of length

l=l'\sqrt{1-\dfrac{v'^2}{c^2}

Put the value into the formula

l=1.60\sqrt{1-(0)^2}

l=1.60\ ly

Using formula of time

t=\dfrac{l}{|v'|}

Put the value into the formula

t=\dfrac{1.60}{0.404}

t=3.96\ year

(c). If an observer in frame S

We need to calculate the length

Using formula of length

l=l'\sqrt{1-\dfrac{v'^2}{c^2}

Put the value into the formula

l=1.60\sqrt{1-(0.800)^2}

l=0.96\ ly

We need to calculate the time

t=\dfrac{0.96}{0.910-0.800}

t=8.73\ year

Hence, (a). The trip take a time is 3.61 year.

(b). The trip take a time is 3.96 year.

(c). The trip take a time is 8.73 year.

8 0
3 years ago
53. What will happen to the value of
Sedaia [141]

Answer:

increase by four times

Explanation:

6 0
3 years ago
A substance with a pH of 1.0 will
Darina [25.2K]
I think its likely to explode
3 0
3 years ago
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