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Purvi Mohanty
Subject: Science
, asked 1 week, 1 day ago
Calculate potential energy of a mass 10kg raised to a height of 10 m against the gravity
Answer
1
Purvi Mohanty
Subject: Science
, asked 1 week, 1 day ago
Calculate kinetic energy of a body of mass 4kg moving with velocity 0.5m/s
Answer
1
Hemakshi Gupta
Subject: Science
, asked 1 week, 1 day ago
what do you understand by units of electrical energy? How many joules are consumed if the electrical energy shows 400 units of energy ?
Answer
1
P.roshini Rose
Subject: Science
, asked 1 week, 2 days ago
If the speed of a body is halfed and the mass is doubled then what is the new K.E
Answer
2
Mohammad Irfan
Subject: Science
, asked 1 week, 3 days ago
Q no.36 urgent
Answer
1
Arsh Anand
Subject: Science
, asked 1 week, 3 days ago
I am attaching two pics one is solved problem (17) and other isthe solution of a problem where power of engine is to be calculated. The question is what is the power of engine which can just pull a train of mass 5000quintals up an incline of 1 in 50 @ 54 km/hr. The resistance due to friction is 0.8N/quintal. Take g=9.8.
My question is why mg is being multiplied by sin theta at one place and cos theta is being used in the other.
Please refer 17 & 39(a) in the pic.
Answer
1
Arsh Anand
Subject: Science
, asked 1 week, 3 days ago
I am attaching two pics one is a solved problem (17) and the other is a solution of a problem where, power of engine is to be calculated. The question is , what is the power of an engine which can just pull a train of mass 5000quintals up an incline of 1 in 50 at the rate of 54 km/hr. The resistance due to friction is 0.8 N/quintal. Take g = 9.8m/s.
My question is why mg is being multiplied by sin Theta at one place and cos theta is being used in the other.
Please refer 17 and 39 (a) in the pic.
Answer
2
Arsh Anand
Subject: Science
, asked 1 week, 3 days ago
Please solve and explain this sum.
Answer
1
Parth Bhandari
Subject: Science
, asked 1 week, 4 days ago
the work done of an object does not depends upon
a displacement
b force applied
c angle between force
d displacement the initial velocity of the object
Answer
1
Manisha Kumari
Subject: Science
, asked 1 week, 6 days ago
A 60 HP electric motor lifts an elevator
having a max. total load capacity of 2000 kg.
If the frictional force as the elevator is
4000N, the speed of the elevator at full load
is close to:
(1 HP = 746W, g = 10ms?2
)
Answer
1
Drishti Dua
Subject: Science
, asked 1 week, 6 days ago
Please tell the answer of
Question no 6
Answer
1
Drishti Dua
Subject: Science
, asked 1 week, 6 days ago
Please tell the answer of
Question no 5
Answer
1
Drishti Dua
Subject: Science
, asked 1 week, 6 days ago
Please tell the answer of
Question no 4,5,and 6 .
Answer
1
Drishti Dua
Subject: Science
, asked 1 week, 6 days ago
What would be the answer of these questions
Answer
3
Drishti Dua
Subject: Science
, asked 2 weeks ago
Please tell the answers of the following questions ??????
Answer
1
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What are you looking for?

My question is why mg is being multiplied by sin theta at one place and cos theta is being used in the other.

Please refer 17 & 39(a) in the pic.

My question is why mg is being multiplied by sin Theta at one place and cos theta is being used in the other.

Please refer 17 and 39 (a) in the pic.

a displacement

b force applied

c angle between force

d displacement the initial velocity of the object

having a max. total load capacity of 2000 kg.

If the frictional force as the elevator is

4000N, the speed of the elevator at full load

is close to:

(1 HP = 746W, g = 10ms?2

)

Question no 6

Question no 5

Question no 4,5,and 6 .