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Bumek [7]
4 years ago
12

Can someone please help

Physics
1 answer:
ki77a [65]4 years ago
8 0

Answer:

Acceleration of that planet is 30 \frac{m}{s^{2} }.

Given:

initial speed of hammer = 0 \frac{m}{s}

time = 1 s

distance = 15 m

To find:

Acceleration due to gravity = ?

Formula used:

Distance covered by hammer is given by,

s = ut + \frac{1}{2} a t^{2}

s = distance

u = initial speed of hammer

t = time taken by hammer to reach ground

a = acceleration

Solution:

Distance covered by hammer is given by,

s = ut + \frac{1}{2} a t^{2}

s = distance

u = initial speed of hammer

t = time taken by hammer to reach ground

a = acceleration

u = 0

t = 1 s

s = 15 m

a = g

Thus substituting these value in above equation.

15 = 0 + \frac{1}{2} g 1^{2}

g = 15 × 2

g = 30 \frac{m}{s^{2} }

Thus, acceleration of that planet is 30 \frac{m}{s^{2} }.

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Bogdan [553]

Answer:

250

Explanation:

impulse calculator internet

3 0
2 years ago
If a nearsighted person has a far point df that is 3.50m from the eye, what is the focal length f1 of the contact lenses that th
olga55 [171]

Answer:

f1= -350cm or -3.5m

f2= 22.1cm or 0.221m

Explanation:

A person is nearsighted when the person's far point is less than infinity. A diverging lens is normally used to correct this eye defect. A diverging lens has a negative focal length as seen in the solution attached.

Farsightedness is when a person's near point is farther than 25cm. This eye defect is corrected using a converging lens. The focal length of a converging lens is positive. This is evident in the solution attached. The near point is also referred to as the least distance of distinct vision.

3 0
3 years ago
Natalia lifts a bag of groceries 0.50 m by exerting a force of 36 N. How much work did she do on the bag?
Kruka [31]
<h3><u>Answer;</u></h3>

18 Joules

<h3><u>Explanation;</u></h3>
  • <em><u>Work is the measures the transfer of energy when an object moves over a given distance.</u></em>
  • Work is therefore given by; Force × distance

Force =36 Newtons

Distance = 0.5 meters

  • Hence; <em>work = 36 N × 0.5 N</em>

<em>                                = 18 Joules </em>

5 0
3 years ago
Read 2 more answers
4. SEP Construct Explanations What type(s) of energy
ziro4ka [17]

Answer:

it is below pls give 5 star

Explanation:

Foods contain stored potential energy in the form of chemical energy. When we consume food, the particles undergo a chemical reaction that releases the chemical energy. In turn, this energy is used by the body to perform its daily activities.

Therefore, when you eat a bowl of vegetable soup, you get the chemical energy that is stored in it.

RESULT

Foods contain stored potential energy in the form of chemical energy. When we consume food, the particles undergo a chemical reaction that releases the chemical energy. In turn, this energy is used by the body to perform its daily activities.

Therefore, when you eat a bowl of vegetable soup, you get the chemical energy that is stored in it

3 0
3 years ago
Action and reaction forces are described by which of Newton’s laws of motion?
nikdorinn [45]

Answer:

third

Explanation:

for every action there is an equal and opposite reaction

example

bouncing ball

ball receives a force from the ground due to collision

that same force causes the ball to bounce off the ground

first law:

inertia

example

stuff in space doesn't move unless its pushed

then it keeps going unless something stops it

second law

force = mass times acceleration

example

harder you push a cart the faster it goes

the less a cart weighs the faster a cart goes

studysmarterus

spacecenterorg

energywavetheory

5 0
3 years ago
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