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bulgar [2K]
2 years ago
7

Two 5.0 kilogram objects have different gravitational potential energies. What property of the objects must differ?

Physics
1 answer:
ipn [44]2 years ago
7 0

Answer:

Height.

Explanation:

Potential energy can be defined as an energy possessed by an object or body due to its position.

Mathematically, potential energy is given by the formula;

P.E = mgh

Where,

P.E represents potential energy measured in Joules.

m represents the mass of an object.

g represents acceleration due to gravity measured in meters per seconds square.

h represents the height measured in meters.

Hence, the property of the object (having a mass of 5 kilograms) which must differ to have different gravitational potential energies is the height from which they are falling from.

The object having the higher height would have a greater gravitational potential energy than the lower object.

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Two men standing on the same side of wall and at the same distance from It, such that they are 4oom apart when one fires a gun t
Mamont248 [21]

Answer:

1. 571.43m/s

2. 142.9m and 342.9m

Explanation:

1.Take the difference in time.

1.2-0.7=0.7 seconds

Take the distance between them and divide with differnce in time.

400÷0.7=571.43 seconds.

2.Take the time of the two men and divide by two.

0.5÷2= 0.25 secs

1.2÷2= 0.6 secs

multiply each with the velocity.

0.25×571.43=142.9m

0.6×571.43=342.9m

8 0
2 years ago
A car is initially moving at 35 km/h along a straight highway. To pass another car, it speeds up to 135 km/h in 10.5 seconds at
Aleks04 [339]
Acceleration = (velocity final-velocity initial)/ time
where
velocity final = 135 km/hr x 1 hr /3600 s x 1000m/1km
                     = 37.5 m/s
velocity initial = 35 km/hr x  1hr /3600 s x 1000 m/1 km
                      =  9.72 m/s
a) acceleration = 2.646 m/s^2
b) acceleration in g units  = (2.646m/s^2)/(9.8m/s^2)
                                              = 0.27 units

6 0
3 years ago
Use the drop-down menus to complete each sentence. before starting the simulation and having the waves encounter the barrier, th
Paul [167]

The mass of the water in the system is one parameter that can be taken into consideration that is kept constant.

Describe a constant.

A constant in science is a kind of unaltered variable that stays constant together with the experimental process.

It is important to take into account a system's constants, which cannot be altered by experiments or observations.

In conclusion, the mass of the water can be taken into consideration as a continuous system parameter.

Learn more about the constant of the system here:

brainly.com/question/17367653

#SPJ4

8 0
1 year ago
5N<br> 5 N<br> 19 N<br> 19 N<br><br> Pls help look at the pic
snow_lady [41]

Answer:

b. is the correct answer ....

7 0
3 years ago
A ball of mass m is attached to a string of length L. It is being swung in a vertical circle with enough speed so that the strin
forsale [732]

Answer:

\frac{m}{r}(v_b^2-v_t^2)+2mg

Explanation:

When the ball is at the bottom position of the vertical circle, the forces acting on the ball are:

- The tension in the string, T_b, upward

- The weight of the ball, mg, downward

The resultant of these forces must be equal to the centripetal force, which points upward as well (towards the center of the circle), so:

T_b-mg=m\frac{v_b^2}{r} (1)

where v_b is the speed of the ball at the bottom of the circle, r the radius of the circle, and m the mass of the ball.

When the ball is at the top position of the vertical circle, the weight still acts downward, however the tension in the string also acts downward, so the equation of the forces becomes:

T_t+mg=m\frac{v_t^2}{r} (2)

where

T_t is the tension in the string in the top position

v_t is the speed of the ball in the top position

By subtracting eq.(2) from eq.(1), we find:

T_b-mg-(T_t+mg)=m\frac{v_b^2}{r}-m\frac{v_t^2}{r}\\T_b-T_t=\frac{m}{r}(v_b^2-v_t^2)+2mg

So, this is the difference in tension between the two positions.

7 0
3 years ago
Read 2 more answers
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