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rjkz [21]
3 years ago
11

Which term names the force every mass exerts on every other mass?

Physics
2 answers:
Vesna [10]3 years ago
7 0
Which term names the force every mass exerts on every other mass?

A.gravity


garri49 [273]3 years ago
3 0
A. gravity is your answer hope this helps
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.<br> What is the mass number of the isotope lithium-7?
Alex17521 [72]

Answer:

7

Explanation:

isotopes are named after there mass number. because there mass number is different and protons no is same

7 0
3 years ago
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Can anyone please tell me the properties of image formed in a spherical mirror?
notsponge [240]

Answer:

The two rays, CY and DM are diverging rays and when extended behind the mirror, they appear to intersect each other at point M'. Therefore, the properties of the images formed here are formed behind the mirror, between the pole and principal focus (f), the images are diminished and are virtual and erect.

Explanation:

<h2>Spherical Mirrors</h2>

  • There are two kinds of spherical mirrors, concave and convex.

  • The focal point (F) of a concave mirror is the point at which a parallel beam of light is "focussed" after reflection in the mirror. ...

  • The focal length (f) and radius of curvature (R) are defined in the diagram at the right.

<h3>hope it helps and thanks for following </h3><h2>please give brainliest </h2>
6 0
2 years ago
Read 2 more answers
A ball is dropped from rest at point O (height unknown). After falling for some time, it passes by a window of height 3 m and it
Usimov [2.4K]

Answer:

Part a)

\Delta v_{down} = 4.8 m/s

Part b)

v_a = 3.71 m/s

Explanation:

Since ball is dropped under uniform gravity

so here we can say that the distance of 3 m moved by the ball under uniform acceleration is given as

d = (\frac{v_f + v_i}{2})t

so we have

3 = (\frac{v_f + v_i}{2})(0.49)

v_f + v_i = 12.24

also we know that

v_f - v_i = at

v_f - v_i = (9.81)(0.49)

v_f - v_i = 4.81

now we will have

v_f = 8.52 m/s

v_i = 3.71 m/s

Part a)

\Delta v_{down} = v_b - v_a

\Delta v_{down} = 8.52 - 3.71

\Delta v_{down} = 4.8 m/s

Part b)

speed at the top of the window is

v_a = 3.71 m/s

3 0
3 years ago
Basking in the sun, a 1.10 kg lizard lies on a flat rock tilted at an angle of 15.0° with respect to the horizontal. What is the
Ray Of Light [21]

10.4 N

Given

m = 1.10 kg

θ = 15.0°

g = 9.81 m/s2

Solution

Fnet, y = ΣF y = Fn − Fg, y = 0

Fn = Fg, y = Fg

cosθ = mgcosθ

Fn = (1.10 kg)(9.81 m/s2

)(cos15.0°) = 10.4 N

3 0
3 years ago
A heat engine performs (245 + A) J of work in each cycle while also delivering (142 + B) J of heat to the cold reservoir. Find t
Ganezh [65]

Answer:

The value is \eta  =  54.4 \%

Explanation:

From the question we are told that

    The work input is  W = ( 245 + A ) \  J

     The heat delivered is Q =  (142 + B) \  J

      The value of A is  A =  14

        The value of B  is  B  = 72

Generally the efficiency of the heat engine is mathematically represented as

          \eta  =  \frac{W}{Q_t}

Here  Q_t is the total out energy produce by the heat engine and this is mathematically represented as

           Q_t= Q + W

=>         Q_t=  245 + A + 142 + B

=>         Q_t=  390 + A+B

So

               \eta  =  \frac{245 + A }{390 + A+ B}

=>          \eta  =  0.544

=>          \eta  =  0.544 *100

=>          \eta  =  54.4 \%

5 0
3 years ago
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