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Svetllana [295]
3 years ago
6

Which statement best defines work.

Physics
1 answer:
alexgriva [62]3 years ago
7 0
Work is in units of Jules, so any comparison with time is incorrect. Answer D is the definition for velocity, which is incorrect. Answer C is the correct answer
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ELECTROMAGNETIC FIELDS PLAN AN INVESTIGATION LAB REPORT FOR EDG.!!!!! WORTH 100 POINTS????????
tekilochka [14]

Answer:ummm ok

Explanation:I really don’t get it but ok

3 0
2 years ago
A bookcase has a base of 1 m long and 0.5 m wide. It has a mass of 300kg. Find the pressure it exerts on the floor in kPa.
Snezhnost [94]
1m*0.5m=0.5m^2\\
g=10\frac{m}{s^2}\\
300kg*10\frac{m}{s^2}=3000N\\
3000N--0.5m^2\\
\ \ x\ \ --\ 1\\
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4 0
2 years ago
A motor running at 2600 rev/min is suddenly switched off and decelerates uniformly to rest after 10 s. Find the angular decelera
Mama L [17]
Angular acceleration = (change in angular speed) / (time for the change)

change in angular speed = (zero - 2,600 RPM)  =  -2,600 RPM

time for the change = 10 sec

Angular acceleration = -2600 RPM / 10 sec = -260 rev / min-sec

(-260 rev/min-sec) x (1 min / 60 sec) = <em>-(4 1/3)  rev / sec²</em>

Since the acceleration is negative, the motor is slowing down.
You might call that a 'deceleration' of (4 1/3) rev/sec² .

The average speed is  1/2(2,600 + 0) = 1,300 rev/min = (21 2/3) rev/sec.

Number of revs = (average speed) x (time) = (21 2/3) x (10sec) = <em>(216 2/3) revs</em>
6 0
3 years ago
Which of the following are coefficients you could use in a balanced equation?
Novay_Z [31]

Answer: 1, 2, 6, 9

Explanation:

4 0
3 years ago
an ice Puck travels 18 m in 3 S before it slides into the goal what is the speed of the traveling puck ​
DiKsa [7]

Answer:

\boxed {\boxed {\sf 6 \ meters \ per \ second}}

Explanation:

Speed can be found by dividing the distance by the time.

s=\frac{d}{t}

The distance is 18 meters and the time is 3 seconds.

d= 18 \ m \\t= 3 \ s\\

Substitute the values into the formula.

s=\frac{18 \ m }{ 3 \ s }

Divide.

s= 6 \ m/s

The speed of the puck is <u>6 meters per second.</u>

4 0
2 years ago
Read 2 more answers
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