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3 years ago

7

Please answer quickly :)

1 answer:

Elena L [17]3 years ago

6 0

Answer:

idk butttttt.... i had fun talking to u yesterday and the other conversation is getting a little....uhm....how do i say this.....weird.....everyone is friends now¯\_('-')_/¯

Explanation:

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(Will give brainliest)

Sveta_85 [38]

Answer:

b.) Length

Explanation:

The length of the string can be changed by removing it from the slotted bracket and placing it back in. You can change the mass by varying the number of washers on the mass hanger. The amplitude can be changed by varying the starting angle of the pendulum (low, medium, and high angle). sorry if wrong

8 0

3 years ago

Directions: I answer all the questions listed below.

anzhelika [568]

Answer:

The compression ratio is 10

Explanation:

Given

$V_d = 450cm^3$ --- swept volume

$V_c = 50cm^3$ --- compression volume

Required

Determine the compression ratio (CR)

This is calculated as:

$CR = \frac{V_d + V_c}{V_c}$

$CR = \frac{450+50}{50}$

$CR = \frac{500}{50}$

$CR = 10$

5 0

3 years ago

Read 2 more answers

How many complete revolutions are needed to draw the angle 725°?

uysha [10]

C. A complete revolution is 360 degree. two revolution is 720.

8 0

3 years ago

Read 2 more answers

Q3. If each tape represents the distance travelled by the object for 1

xxMikexx [17]

No clue brother this one diff kit

5 0

3 years ago

. The inner and outer surfaces of a 4-m × 7-m brick wall of thickness 30 cm and thermal conductivity 0.69 W/m-K are maintained a

Anni [7]

Answer:

$\frac{dQ}{dt} = 966 W$

Explanation:

As we know that the rate of heat transfer due to temperature difference is given by the formula

$\frac{dQ}{dt} = \frac{KA(\Delta T)}{L}$

here we know that

$K = 0.69 W/m-K$

A = 4 m x 7 m

thickness = 30 cm

temperature difference is given as

$\Delta T = 20 - 5 = 15 ^oC$

now we have

$\frac{dQ}{dt} = \frac{(0.69W/m-K)(28 m^2)(15)}{0.30}$

$\frac{dQ}{dt} = 966 W$

4 0

3 years ago