All categories

3 years ago

Help please i really want to pass this quiz

Physics

1 answer:

Lesechka [4]3 years ago

5 0

Answer:

It is positive and smaller in magnitude than the initial acceleration.

Explanation:

We know that acceleration is defined as the change of velocity in a given time.

We see that the time interval is equal to 30 seconds (70 - 40). In this interval we also see that the velocity increases from 245 to 250 (m/s) approximately. Therefore the acceleration is positive.

With respect to the magnitude we can say that it is smaller than at the beginning since the change of velocities is smaller with respect to the change of velocities at the beginning.

You might be interested in

Will an object with the density of 0.66g float?

Firdavs [7]

Yes yes it will............

6 0

3 years ago

Blank occurs when salt is evenly mixed with water

podryga [215]

I think solution because it dissolves

6 0

4 years ago

A machine in an ice factory is capable of exerting 3.31 × 102 N of force to pull large blocks of ice up a slope. The blocks each

tankabanditka [31]

Answer: $\theta =1.43 ^{\circ}$

Explanation:

Given

Force exerted by machine $F=3.31 \times 10^2 N$

Weight of Block $W=mg=1.32\times 10^4 N$

Considering inclination to be $\theta$

After resolving Forces We get

$mg\sin \theta =F$

$\sin \theta =\frac{F}{mg}$

$\sin \theta =\frac{3.31 \times 10^2}{1.32\times 10^4}$

$\sin \theta =2.507\times 10^{-2}$

$\sin \theta =0.02507$

$\theta =\sin ^{-1}(0.02507)$

$\theta =1.43 ^{\circ}$

7 0

3 years ago

True or false static is weightless colorless and odorless

V125BC [204]

Answer:

True.

Explanation:

5 0

3 years ago

The Drake equation calculates the number of technically advanced civilizations in the galaxy as a product of seven factors: R* f

juin [17]

The Drake equation calculates the civilization parameter as
R*fp*ne*fl*fi*fc*L = 1 x 1 x 0.1 x 1 x 1 x 1 x 100 = 10.

If each increasable factor is multipled by 10, the result will be
(1*10) x (1*10) x (0.1*10) x (1*10) x (1*10) x (1*10) x (100*10)
= 10 x 10⁷
= 10⁸

Answer: 10⁸

3 0

3 years ago