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VARVARA [1.3K]
3 years ago
7

The slope of a distance-versus-time graph shows an object's

Physics
1 answer:
Cerrena [4.2K]3 years ago
8 0
The answer is A, speed.
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Ann and Bob are carrying a 18.5 kg table that is 2.25 m long. A 8.33 kg box sits on the table 0.750 m from Ann. How much lift fo
IgorC [24]

Answer:

F = 118 N

Explanation:

Assume Ann and Bob lift at their respective ends of the table

Sum moments about Bob's position to zero.

Let F be Ann's upward force

F[2.25] - 18.5(9.80)[2.25 / 2] - 8.33(9.80)[0.750] = 0

F = 117.86133333...  

7 0
3 years ago
Use the data below to compute the gravitational force that the Sun exerts on Jupiter. (Use G = 6.67 x 10^-11 N · m²/kg².)
Mademuasel [1]

The gravitational force on two objects can be determined by the following equation:

F=G\frac{m_{1}m_{2}}{r^2}

Where G is the gravitational constant m1 is mass 1, m2 is the second mass nad r^2 is distance between these objects.  Therefore, let m1 = mass of Sun 1.99x10^30 kg, m2= mass of Jupiter 1.90x10^27 kg, r is the average distance between the Sun and Jupiter 7.78x10^11 m.  By plugging these values in we have:

F=6.67x10^{-11}\frac{(1.99x10^{30})(1.90x10^{27})}{(7.78x10^{11})^2}

F=4.1665x10^{23}

F=4.17x10^23 N


8 0
3 years ago
The speed of x-rays is A.faster than light B.slower than the speed of gamma rays C.Same as the speed of radio waves D.same as th
Vinvika [58]

Electromagnetic waves are those waves that are composed of electric and magnetic fields perpendicular to each other and to the direction of the propagation. All electromagnetic waves have the same speed.

That is, 3×10⁸ m/s.

X-ray is one of the electromagnetic waves. So are light, gamma rays, and radio waves.

Thus the speed of all these waves is equal.

Thus, the correct answer is option C, "Same as speed of radio waves"

5 0
1 year ago
What direction does centripetal acceleration point?
Nesterboy [21]

Answer:

Inward

Explanation:

As the centripetal force acts upon an object moving in a circle at constant speed, the force always acts inward as the velocity of the object is directed tangent to the circle. This would mean that the force is always directed perpendicular to the direction that the object is being displaced. hope this helps :)

3 0
3 years ago
With manual transmission, use your right foot for the brake and accelerator and left foot for the clutch true or false
GaryK [48]

This is true!

Hope this helps!

4 0
4 years ago
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