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Volgvan
3 years ago
8

If we want to describe work, we must have

Physics
2 answers:
tresset_1 [31]3 years ago
8 0

The answer is C

Hope that helps!

Good luck :)

PtichkaEL [24]3 years ago
6 0

Answer:

The correct answer is option c.

Explanation:

Work is defined as product of the force applied on object and displacement of the object.the direction of the force and displacement of the object are same in direction.It is measures is  Joules (J).

W=F\times d

Joules(J)= Newton(N) × meter(m)

W = Work done in Joules

F = force applied in Newtons.

d = displace of the object due to applied force in miters

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In what ways is the loudness of sound<br>dependent on amplitude?​
zhuklara [117]

Answer:

• The greater the amplitude, the louder the sound

• The lower the amplitude, the lower the sound

I hope it helped you! ^^

3 0
3 years ago
Read 2 more answers
A nuclear fission power plant has an actual efficiency of 32%. If 0.18 MW of power are produced by the nuclear fission, how much
7nadin3 [17]

Answer:

 P₀ = 5.76 x 10⁻² MW

Explanation:

given,

efficiency of the power plant = 32%

Power produced by the nuclear fission = 0.18 MW

the power plant output = ?

using formula of efficiency

\eta = \dfrac{P_0}{P}

where P is the power produced in the power plant

          P₀ is the power output of the power plant

\eta = \dfrac{P_0}{P}

0.32 = \dfrac{P_0}{0.18}

 P₀ = 0.18 x 0.32

 P₀ =  0.0576 MW

 P₀ = 5.76 x 10⁻² MW

Power plant output is equal to  P₀ = 5.76 x 10⁻² MW

8 0
4 years ago
What is the potential energy at point e when the total mechanical energy is 4900 for the 100 kg moving at 2 m/ s
Leto [7]

Answer:

B. 4700 J

Explanation:

Given the following data;

Mechanical energy = 4900J

Mass = 100kg

Velocity = 2m/s

To find the potential energy;

Mechanical energy = kinetic energy + potential energy

First of all, we would determine the kinetic energy of the object;

K.E = ½mv²

K.E = ½*100*2²

K.E = 50*4

K.E = 200 J

Substituting into the equation, we have;

4900 = 200 + P.E

P.E = 4900 - 200

P.E = 4700 Joules

4 0
3 years ago
A car was going at 20m/s along a straight highway. The driver slams on the break to avoid hitting a deer. The car had a negative
My name is Ann [436]
I’m not to sure but I think the answer is -0.10
8 0
3 years ago
a bullet fired straight through a board 0.10 mm thick strikes the board with a speed of 480 m/sm/s, has constant acceleration th
vekshin1

the average acceleration of the bullet through the board   -55657×10⁵ m/s²

acceleration-  Rate of change of velocity with respect to time.

S = 0.10 mm = 10⁻⁵ m  ( distance)          [∵ 1mm = 10⁻³]

u =  480 m/s (initial velocity)

v = 345 m/s (final velocity)

As we know the 3rd equation of motion.  

v² = u² + 2aS

a = ? ( acceleration)

using these values in equation we get

(345)² = (480)² + 2×a× 10⁻⁵

a = (345)² -  (480)² / 2× 10⁻⁵

a =  -55657×10⁵ m/s²

The negative sign shows that the direction of acceleration is opposite of velocity thus bullet is slowing down.

the average acceleration of the bullet through the board  -55657×10⁵ m/s²

The given question is incomplete. The complete question is.

a bullet fired straight through a board 0.10 mm thick strikes the board with a speed of 480 m/sm/s, has constant acceleration through the board, and emerges with a speed of 345 m/sm/s.

What is the average acceleration of the bullet through the board/?

to know more about  the equation of motion :

brainly.com/question/13269040

#SPJ4

5 0
2 years ago
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