3 years ago

What is the unit of work? * A. Joule B. Newton/meter C. Watt D. All of the above

Physics

2 answers:

djyliett [7]3 years ago

3 0

Answer:

A! I already went through this unit. Joule.

Explanation:

Ksju [112]3 years ago

3 0

Answer:

A is the answer thank me later

You might be interested in

A uniform thin wire is bent into a quarter-circle of radius a = 20.0 cm, and placed in the first quadrant. Determine the coordin

Mashcka [7]

Answer:

$r_{cm}=[12.73,12.73]cm$

Explanation:

The general equation to calculate the center of mass is:

$r_{cm}=1/M*\int\limits {r} \, dm$

Any differential of mass can be calculated as:

$dm = \lambda*a*d\theta$ Where "a" is the radius of the circle and λ is the linear density of the wire.

The linear density is given by:

$\lambda=M/L=M/(a*\pi/2)=\frac{2M}{a\pi}$

So, the differential of mass is:

$dm = \frac{2M}{a\pi}*a*d\theta$

$dm = \frac{2M}{\pi}*d\theta$

Now we proceed to calculate X and Y coordinates of the center of mass separately:

$X_{cm}=1/M*\int\limits^{\pi/2}_0 {a*cos\theta*2M/\pi} \, d\theta$

$Y_{cm}=1/M*\int\limits^{\pi/2}_0 {a*sin\theta*2M/\pi} \, d\theta$

Solving both integrals, we get:

$X_{cm}=2*a/\pi=12.73cm$

$Y_{cm}=2*a/\pi=12.73cm$

Therefore, the position of the center of mass is:

$r_{cm}=[12.73,12.73]cm$

5 0

3 years ago

Why is the likelihood of amajor earthquake along the san andreas fault so worrisome??

Softa [21]

Because a lot of people live along the fault line and there would be lots of death and much property damage.

5 0

3 years ago

If a sample of an unknown material with a mass of 0.68 g and a volume of 0.8 cm3 is dropped

Anna71 [15]

As the density of the unknown substance is 0.68g/0.8ml = 0.85g/ml, it is less dense than the maple syrup at 1.33g/ml and will float.

4 0

3 years ago

Which statement correctly describes a characteristic that a scientific measuring tool should have

Reil [10]

Explanation:

To be accurate, it must be able to make measurements that are close to the actual value.

6 0

3 years ago

the distance between two points P and Q is 120 m a object goes from point P to q and then returned to P in 1 minute 40 second wh

Naily [24]

Answer:

using a formula

average velocity=total displacement/total time

average velocity=120/1minute40sec

1minute=60sec

60sec+40sec=120sec

average velocity=120m/120sec

average velocity=1m/sec

3 0

3 years ago