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Nookie1986 [14]
3 years ago
15

A spring with a spring constant of k = 185.0 N / m is oriented vertically, with one end on the ground. What distance does the sp

ring compress when an m = 1.53 kg object is placed on its upper end?
Physics
1 answer:
uysha [10]3 years ago
8 0

Answer:

The distance spring compresses (x) = 0.0811 m

Explanation:

Spring constant (k) = 185 N / m

mass (m) = 1.53 kg

When mass is placed upon the spring the spring force is equal to weight of the mass.

⇒ Spring force (F) = weight of object

⇒  Spring force (F) = k × x

 And weight of the object = mg

⇒ k x =  mg -----------------(1)

Put all the values in equation (1) we get

⇒ 185 × x = 1.53 × 9.81

⇒ x = 0.0811 m

This the distance spring compresses, when mass is placed upon it.

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3 0
4 years ago
A speed-time graph is shown below:
alexandr1967 [171]

Answer:

<em>The average acceleration of the object is 0.5 cm/s^2</em>. Answer: A)

Explanation:

<u>Average Acceleration</u>

The average acceleration of a moving object is the rate at which the speed changed over time in a specific period. It can be calculated as follows:

\displaystyle \bar a=\frac{v_f-v_o}{t}

Where vf is the final speed, vo is the initial speed and t is the time.

The speed-time shows the speed starts at 0 cm/s and ends at 4 cm/s over the 8 seconds period. The average acceleration is:

\displaystyle \bar a=\frac{4-0}{8}=0.5

The average acceleration is 0.5 cm/s^2

A) Correct. The average acceleration is 0.5 cm/s^2

B) Incorrect. The average acceleration is 0.5 cm/s^2

C) Incorrect. The average acceleration is 0.5 cm/s^2

D) Incorrect. The average acceleration is 0.5 cm/s^2

3 0
3 years ago
This gradual change in beak size over time is known as _______.
yan [13]
The correct answer is evolution
4 0
4 years ago
Read 2 more answers
Jason drives uphill from home to school, averaging 20 miles per hour. On the way back, he drives back downhill from school to ho
r-ruslan [8.4K]

Answer:

Average velocity = 30 miles per hour

Explanation:

Given that

Velocity for uphill = 20 miles per hour

Velocity for downhill = 60 miles per hour

We know that

Distance = Velocity x time

Total distance = Average velocity x total time

Lets take distance from home to school is s

Time taken from home to school= s/20 hr

Time taken from school to home= s/60 hr

Total time =s/20+s/60

Total distance = Average velocity x total time

s + s =  Average velocity x (s/20+s/60)

So average velocity = 30 miles per hour

6 0
3 years ago
Three-point charges are arranged on a line. Charge q3 = +5.00nC and is at the origin. Charge q2 = -3.00 nC and is at x = 5.00 cm
Anon25 [30]

Answer:

Explanation:

Given

Charge q_3=+5\ nC is placed at origin

Charge q_2=-3\ nC is placed at x=5\ cm

Charge q_1 is Placed at x=2.5\ cm

charge q_1 must be positive so as to balance the force on charge q_3

Force on q_3 due to q_1 is

F_{31}=\frac{kq_1q_3}{r^2}

here r=2.5\ cm

F_{31}=\frac{kq_1q_3}{(2.5)^2}

Force on q_3 due to q_2 is

F_{32}=\frac{kq_3q_2}{r^2}

here r=5\ cm

F_{32}=\frac{kq_3q_2}{(5)^2}

F_{31}=F_{32}

\frac{kq_1q_3}{(2.5)^2}=\frac{kq_3q_2}{(5)^2}

q_1=q_2(\frac{2.5}{5})^2

q_1=3\times (\frac{2.5}{5})^2

q_1=3\times \frac{1}{4}

q_1=0.75\ nC

                                                                   

5 0
4 years ago
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