Is what flows and carries energy in a circuit

The measure of one of the small angles of a right triangle is 45 less than twice the measure of the other small angle. Find the

astra-53 [7]

Answer:

The other two small angles are 45° each

Explanation:

Given data in the problem:

The triangle is a right triangle

thus,

one of the angle is 90°

now,

let the other two angles be x and y

thus,

it is given that:

x = 2y - 45°

also in a triangle

sum of all the angles = 180°

thus,

x + y + 90° = 180°

or

x + y = 90°

now, substituting the value of x from the above relation between x and y, we get

2y - 45° + y = 90°

or

3y = 135°

or

y = 45°

also,

x = 2y - 45°

or

x = 2 × (45°) - 45°

or

x = 45°

hence, <u>the other two small angles are 45° each</u>

4 0

4 years ago

Suppose you are asked to find the amount of time t, in seconds, it takes for the turntable to reach its final rotational speed.

Inga [223]

Answer:

it will take $t=\frac{\omega -\omega _0}{\alpha }$ to reach its final rotating speed

Explanation:

Let initially the turntable is at rest

So its initial angular velocity will be $\omega _0=0rad/sec$

Let the turn table is rotating with an angular acceleration $\alpha$

According to first equation of motion

We know that $\omega =\omega _0+\alpha t$ , here $\omega$

So $t=\frac{\omega -\omega _0}{\alpha }$

So it will take $t=\frac{\omega -\omega _0}{\alpha }$ to reach its final rotating speed

5 0

3 years ago

Professor Whitney has a sample of lead and a sample of iron. The samples have equal mass. When Whitney heats the samples, the le

xenn [34]

The temperature increase of a substance is T=Q/m*c, where m is the mass, Q is the energy absorbed and c is the specific heat. So you can conclude that if the lead gets to a higher temperature, it must have a lower specific heat

8 0

4 years ago

you slide abox of books at constant speed up a30 degree ramp, applying a force of 200 newtons directed up the slope. The coeffic

Tomtit [17]

The work done is 400 J

Explanation:

The work done by you in pushing the box along the slope is given by

$W=Fd$

where

F is the magnitude of the force applied

d is the distance covered by the box along the slope

Here we have the following:

F = 200 N is the magnitude of the force applied

$d=\frac{h}{sin \theta}$ is the distance covered, where

h = 1 m is the vertical rise

$\theta=30^{\circ}$ is the slope of the plane

Substituting and solving, we find

$W=F\frac{h}{sin \theta}=\frac{(200)(1)}{sin 30^{\circ}}=400 J$

Learn more about work:

brainly.com/question/6763771

brainly.com/question/6443626

#LearnwithBrainly

5 0

3 years ago

What is the formula for the speed of a car

Likurg_2 [28]

The formula for speed is s = d/t, where s is speed, d is distance, and t is time. The formula can be applied to all objects, including cars, to find their speed.

3 0

4 years ago

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