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scoray [572]
2 years ago
9

Answer quick to get brain list but not wrong

Physics
1 answer:
Studentka2010 [4]2 years ago
6 0

Answer:

option c.

option c.38° and 42°

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Two objects, one with a mass of and the other with a force of 30.0kg experience a gravitational force of attraction of 7.50 * 10
nydimaria [60]

Answer:

Explanation:

The formula for this is

F_g=\frac{Gm_1m_2}{r^2} where F is the gravitational force, G is the gravitational constant, m1 is the mass of one object and m2 is the mass of the other object. We are looking for r, the distance between the centers of their masses.

Filling in:

7.5*10^{-8}=\frac{6.67*10^{-11}(90.0)(30.0)}{r^2} and moving things around to solve for r:

r=\sqrt{\frac{6.67*10^{-11}(90.0)(30.0)}{7.5*10^{-8}} } Doing all that and rounding to the 3 sig fig's you need gives us a distance of 1.55 m

8 0
3 years ago
a 70 kg desk sits on the floor motionless If gravity is pulling it with an acceleration of 9.8 m/s/s how much force is gravity e
adell [148]

Since force is mass*acceleration,

F = 70kg * 9.8 m/s

3 0
3 years ago
Suppose the wavelength of the light is 550 nm . How much farther is it from the dot on the screen in the center of fringe E to t
Bogdan [553]

Complete question:

Suppose the wavelength of the light is 550 nm . How much farther is it from the dot on the screen in the center of fringe E to the left slit than it is from the dot to the right slit? Fringe C is the central maximum.

Check the image uploaded.

Answer:

The difference is 1100 nm

Explanation:

A bright fringe creates constructive interference, the wavelength is always in a multiple form.

At center fringe, the difference is (550 nm)(0) = 0

For the first maximum, the difference is (550 nm)(1) = 550 nm

For the second maximum, the difference = (550 nm)(2) = 1100 nm

Thus, for nth maxima, the difference is (550 nm)(n)

From the image uploaded, C is located on the second maximum, therefore the difference is given as  (550 nm)(2) = 1100 nm

Therefore, the dot on the screen in the center of fringe E to the left slit is 1100 nm

3 0
3 years ago
A runner achieves a velocity of 11.1 m/s nine seconds after he begins. What is his acceleration
Delvig [45]

Answer:

=1.23m/s^{2}  (2 decimal places

Explanation:

6 0
2 years ago
Read 2 more answers
Find the distance between the points given. (-3, 2) and (9, -3) 13
ohaa [14]

The distance between two points on a graph is

Square root of [ (difference in the y-values)² + (difference in the x-values)² ] .

So for these two points, the distance between them is

square root of [ (-5)² + (12)² ] =

square root of [ 25 + 144 ]  =

square root of [ 169 ] =

<em>13 .</em>

Yes, the ' 13 ' you typed at the end of the question is the correct answer to it.

5 0
2 years ago
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