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belka [17]
3 years ago
9

A bowling ball and a baseball accelerate equally when falling in a vacuum because

Physics
1 answer:
natulia [17]3 years ago
4 0
Because gravity...

If you dropped a brick and a spoon, they fall down at the same pace. Weight does not make items drop faster.

Hope this helps :)
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How does charging by conduction compare with charging by induction?
daser333 [38]
Oppositely charged objects form in induction but not in conduction.
5 0
3 years ago
Read 2 more answers
A vegatable garden is 12 meters long by 7 meters wide.It is home to 168 mice.What is the population density of the mice?
chubhunter [2.5K]
Density= population/area
area= 12 X 7 = 84 m^2
density= 168/84= 2 mice per m^2
5 0
4 years ago
1 point
Darya [45]

Given that,

Mass of object, m = 55 kg

Mechanical energy of the object, M = 4306 J    

Potential energy, P = 2940 J

We know that the mechanical energy is the sum of kinetic and potential energy such that,

Mechanical energy = kinetic energy + potential energy

K=M-P\\\\K=4306-2940\\\\K=1366\ J

Kinetic energy is given by :

K=\dfrac{1}{2}mv^2v is velocity of object

v=\sqrt{\dfrac{2K}{m}} \\\\v=\sqrt{\dfrac{2\times 1366}{55}} \\\\v=7.04\ m/s

So, the velocity of object is 7.04 m/s.            

7 0
3 years ago
An object of mass 2kg is on an incline where there is an applied force of 15N. The
seraphim [82]

a) See free-body diagram in attachment

b) The acceleration is 2.46 m/s^2

Explanation:

a)

The free-body diagram of an object is a diagram representing all the forces acting on the object. Each force is represented by a vector of length proportional to the magnitude of the force, pointing in the same direction as the force.

The free-body diagram for this object is shown in the figure in attachment.

There are three forces acting on the object:

  • The weight of the object, labelled as mg (where m is the mass of the object and g is the acceleration of gravity), acting downward
  • The applied force, F_a, acting up along the plane
  • The force of friction, F_f, acting down along the plane

b)

In order to find the acceleration of the object, we need to write the equation of the forces acting along the direction parallel to the incline. We have:

F_a - F_f - mg sin \theta = ma

where:

F_a = 15 N is the applied force, pushing forward

F_f = 5 N is the frictional force, acting backward

mg sin \theta is the component of the weight parallel to the incline, acting backward, where

m = 2 kg is the mass of the object

g=9.8 m/s^2 is the acceleration of gravity

\theta=15^{\circ} is the angle between the horizontal and the incline (it is not given in the problem, so I assumed this value)

a is the acceleration

Solving for a, we find:

a=\frac{F_a - F_f - mg sin \theta}{m}=\frac{15-5-(2)(9.8)(sin 15^{\circ})}{2}=2.46 m/s^2

Learn more about inclined planes:

brainly.com/question/5884009

#LearnwithBrainly

8 0
3 years ago
Calculate 9 ∙ 10-5 divided by 3 ∙ 10-9. (Box after the "10" in answer is for the exponent.).
Papessa [141]

Answer:

3 × 10⁴

Explanation:

We are given two numbers, n_1=9\times 10^{-5} and n_2=3\times 10^{-9}

We have to divide n₁ by n₂. We know that,

\dfrac{10^n}{10^m}=10^{n-m}

Here, n = -5 and m = -9

So on dividing we get :

\dfrac{9\times 10^{-5}}{3\times 10^{-9}}=3\times 10^{-5+9}=3\times 10^4

Hence, on dividing n₁ by n₂ obtained number is 3 × 10⁴.

6 0
3 years ago
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