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DochEvi [55]
3 years ago
8

A golf ball and an equal-mass bean bag are dropped from the same height and hit the ground. The bean bag stays on the ground whi

le the golf ball rebounds. Which experiences the greater impulse from the ground?
a. The golf ball.
b. Not enough information.
c. The bean bag.
d. Both the same.
Physics
1 answer:
Sladkaya [172]3 years ago
7 0

Answer:

option A

Explanation:

The correct answer is option A

given,

mass of ball and bean bag is same

golf ball rebound with certain velocity where as the bean bag stops.

Impulse = Change in momentum

I = m v_f - m v_i

When the golf ball rebound there will be negative velocity on the ball.

Which will add up and increase the impulse of the golf ball.

But in the case of beam bag velocity after the collision is zero the impulse will be less.

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Explain what radiation is in 1-2 paragraphs please, thank you
mote1985 [20]

Answer:

Explanation:

Radiation is often categorized as either ionizing or non-ionizing depending on the energy of the radiated particles. Ionizing radiation carries more than 10 eV, which is enough to ionize atoms and molecules and break chemical bonds. This is an important distinction due to the large difference in harmfulness to living organisms. A common source of ionizing radiation is radioactive materials that emit α, β, or γ radiation, consisting of helium nuclei, electrons or positrons, and photons, respectively. Other sources include X-rays from medical radiography examinations and muons, mesons, positrons, neutrons and other particles that constitute the secondary cosmic rays that are produced after primary cosmic rays interact with Earth's atmosphere.

6 0
4 years ago
A 70 n force pulls a box straight up 5 m above the ground. how much work is done on the box?
lord [1]

The work done on the box is 350 joules

Workdone can be described as the amount of energy transferred from an object.

Force can be described as the push on an object, this push makes the object to go through a change in velocity.

Distance can be described as the movement of an object towards any given direction.

It can be calculated by multiplying the force by the distance

Workdone= force × distance

= 70 × 5

= 350

Thus, the work done on the box is 350 joules


Please see the link below for more information
brainly.com/question/14330400?referrer=searchResults


#SPJ1

6 0
2 years ago
Why do substance takes long to condense than freezing?​
Alexeev081 [22]
The processes of evaporation and condensation take 7.5 times as much energy as melting or freezing. This is why evaporational cooling will cool the air much more than the melting of snow
8 0
3 years ago
An elevator is moving down at a constant rate of 4 m/s. A person is standing on a scale that says the person weighs 80 N. When i
tresset_1 [31]

Answer:

The reading on the scale is 96.31 N.

Explanation:

When the elevator comes to a stop the speed decreases from 4 m/s to 0 m/s.

This means that it incurs deceleration. We can use the formula below to find out the force that is applied on the person during this deceleration:

F = mass * acceleration

Assuming the deceleration is constant, we have the following equation:

V = U + at

Where V = Final speed = 0

U = initial speed = 4

a = acceleration

t = time

Solving, we get:

0 = 4 + 2a

a = -2 m/s^2

Thus the object decelerates at 2 m/s^2

The mass of the person = 80 / 9.81 =  8.155 kg

F = 8.155 * 2

F = 16.31 N

Total weight = 80 + 16.31 = 96.31 N  (This is the reading on the scale)

4 0
3 years ago
A particle moves along the x-axis so that its velocity at anytime is t greater than or equal to 0 is given by v(t)=1-sin(2pi t)
UkoKoshka [18]
A) We differentiate the expression for velocity to obtain an expression for acceleration:
v(t) = 1 - sin(2πt)
dv/dt = -2πcos(2πt)
a = -2πcos(2πt)

b) Any value of t can be plugged in as long as it is greater than or equal to 0. 

c) we integrate the expression of velocity to find an expression for displacement:
∫v(t) dt = ∫ 1 - sin(2πt) dt
x(t) = t + cos(2πt)/2π + c
x(0) = 0
0 = = + cos(0)/2π + c
c = -1/2π
x(t) = t + cos(2πt)/2π -1/2π
5 0
4 years ago
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