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madreJ [45]
3 years ago
8

Force is measured by: a) ammeter b) spring balance c) two pan balance d) ruler​

Physics
2 answers:
laila [671]3 years ago
8 0

Answer:

force can also be considered as weight so

Spring balance is used for measuring Force.

Explanation:

Bezzdna [24]3 years ago
3 0
Is measured by Spring balance.
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A 62.6-kg skateboarder starts out with a speed of 2.18 m/s. He does 113 J of work on himself by pushing with his feet against th
n200080 [17]

Answer:

a. Wgra=786.09J

b. 1.28m

Explanation:

The change in the potential energy is the work done by the gravitational force.

For this problem you have to take into account that the total work done is given by the change in the kinetic energy

W_{tot}=\Delta E_k=\frac{m}{2}(v_f^2-v_0^2)\\W_{tot}=\frac{62.6kg}{2}((6.55\frac{m}{s})^2-(2.18\frac{m}{s})^2)=1194.09J

Furthermore the total work is the contribution of the work done by the skater, the gravitational force and the friction

W_{tot}=W_{ska}+W_{fric}+W_{gra}

(a) by separating Wfric you have

W_{gra}=W_{tot}-W_{fric}-W_{ska}=1194.09J-295J-113J=786.09J

(b) It is only necessary to use the expression for the work done by gravitational force

W_{grav}=mgh\\h=\frac{W_{grav}}{mg}=\frac{786.09J}{(62.6kg)(9.8\frac{m}{s^2})}=1.28m

HOPE THIS HELPS!!

6 0
3 years ago
Krish has a sample of matter. It is clear and smells sour. The sample is also thick but it flows when poured.
Tamiku [17]

Answer:

It is a liquid because it flows.

Explanation:

because liquids dont have to be a certain color they are liquid as long as they flow

4 0
3 years ago
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Suppose the initial position of an object is zero, the starting velocity is 3 m/s and the final velocity was 10 m/s. The object
Soloha48 [4]

The displacement of an object is obtained by taking out the area of the rectangle plus the area of the triangle under the line.

<h3>What is acceleration?</h3>

Acceleration is defined as the rate change of velocity with time.

acceleration a = (Δv) / (Δt)

Suppose the initial position of an object is zero, the starting velocity is 3 m/s and the final velocity was 10 m/s. The object moves with constant acceleration.

In velocity time graph, the slope determines the acceleration and the area under the curve  gives the value for the displacement.

Thus, the displacement of an object is obtained by taking out the area of the rectangle plus the area of the triangle under the line.

Learn more about acceleration.

brainly.com/question/12550364

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8 0
2 years ago
One advantage of a fever is that it can slow down the
AlexFokin [52]
One advantage of a fever is that it can slow down the growth of pathogens by denaturing their proteins.
8 0
4 years ago
An ore car of mass 35000 kg starts from rest and rolls downhill on tracks from a mine. At the end of the tracks, 17 m lower vert
BaLLatris [955]

Answer:

Explanation:

Given

mass of car m=35,000 kg

Vertical displacement h=17 m

spring constant k=5.3\times 10^5 N/m

Considering we need to find out compression in the spring when it reaches to ground

Here Gravitational potential Energy is converted to kinetic energy which finally converts to Elastic Potential Energy

suppose x is the compression in spring

Potential Energy=mgh

Elastic potential energy=\frac{1}{2}kx^2

35000\times 10\times 17=0.5\times 5.3\times 10^5\times x^2

x=4.73 m

7 0
3 years ago
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