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R J
Subject: Physics
, asked on 15/4/18
How many significant figure
Answer
1
R J
Subject: Physics
, asked on 15/4/18
Q
.
α
=
F
v
2
S
i
n
β
t
,
h
e
r
e
v
=
v
e
l
o
c
i
t
y
,
F
=
f
o
r
c
e
,
t
=
t
i
m
e
,
f
i
n
d
t
h
e
d
i
m
e
n
s
i
o
n
s
o
f
α
a
n
d
β
.
Answer
4
R J
Subject: Physics
, asked on 15/4/18
Q. For n moles of gas, wanderwaal's equation is
p
-
a
v
2
v
-
b
=
n
R
T
find the dimensions of a & b, where P is gas pressure, V is volume of gas, T = temperature of gas.
Answer
1
Ghosh Brothers
Subject: Physics
, asked on 14/4/18
Pls solve
Q. A wedge 1 of mass
m
1
and with angle
α
rests on a horizontal surface. Block 2 of mass
m
2
is placed on the wedge. Assuming the friction to be negligible, find the acceleration of the wedge.
Answer
1
Virajas Yadav
Subject: Physics
, asked on 13/4/18
an oject is moving ithb velocity of 2ms^-1 if velocity changes at uniform rate at 5ms^-1 the average velocity of the object is
Answer
1
Champ Jee
Subject: Physics
, asked on 12/4/18
Can we multiply two vectors? No, right?(coz, how can we multiply directions?)
But we can multiply or divide a vector by any magnitude? Right?
Answer
3
Priyanshi
Subject: Physics
, asked on 9/4/18
Ans with sol
29. A vector A is along the positive z-axis and its vector product with another vector B is zero, then vector B could be.
a
i
^
+
j
^
b
4
i
^
c
j
^
+
k
^
d
-
7
k
^
Answer
6
Ranjitha R
Subject: Physics
, asked on 6/4/18
unit vector along (icap+jcap+kcap) is
a) (icap+jcap+kcap)/root3
b) (icap+jcap+kcap)root3
c) (icap+jcap+kcap)/3
d) (icap+jcap+kcap)3
Answer
2
Ranjitha R
Subject: Physics
, asked on 6/4/18
a particle describes two parabolic paths in time t1 and t2 so as to cover the same horizontal rangeR. The product of t1 and t2 is proportional to
a)R
b)R sq
c)R cube
d)root R
Answer
1
Ghosh Brothers
Subject: Physics
, asked on 3/4/18
A particle moving along a circular path of radius r and uniform speed v. Through what angle does it's angular velocity change when it completes half revolution
Answer
1
Prakhar Asaiya
Subject: Physics
, asked on 2/4/18
A projectile is placed on an triangular shaped inclined plane inclined at an angle alpha, and other angle of inclined plane with ground is beta, the third angle being 90. Projectile is projected with angle theta,where theta is wrt ground. If the projectile passes through the topmost point of inclined plane, and falls at the lowest point of incline which makes angle beta, find relation between theta,alpha and beta.
Answer
3
Shivam
Subject: Physics
, asked on 2/4/18
Please solve this question
23
.
I
f
A
=
i
^
+
2
j
^
+
3
k
^
,
B
=
-
i
^
+
j
^
+
4
k
^
a
n
d
C
=
3
i
^
-
3
j
^
-
12
k
^
,
t
h
e
n
f
i
n
d
t
h
e
a
n
g
l
e
b
e
t
w
e
e
n
t
h
e
v
e
c
t
o
r
s
A
+
B
+
C
a
n
d
A
×
B
.
Answer
1
Priyanshi
Subject: Physics
, asked on 1/4/18
A=B the angle between a and b is 90 then a+b =?
Ans : root 2a want the sol
Answer
3
Shreya Choudhary
Subject: Physics
, asked on 30/3/18
Q.8. A person running at speed 3 m/s w.r.t. ground on a ship perpendicular to the direction of motion of the ship moving at 4 m/s, throws a ball vertically up at 5 m/s. Horizontal range of the ball w.r.t. ground is
(1) 20 m
(2) 15 m
(3) 10 m
(4) 5 m
Answer
1
Shreya Choudhary
Subject: Physics
, asked on 30/3/18
Solve this:
Q. In usual notations, the equation of trajectory of a projectile is y=x-0.1x
2
, where g=10 m/s
2
. Initial speed of thrown of the projectile is .
(1) 10 m/s
(2) 15 m/s
(3) 20 m/s
(4) 25 m/s
Answer
1
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What are you looking for?
Q. For n moles of gas, wanderwaal's equation is
find the dimensions of a & b, where P is gas pressure, V is volume of gas, T = temperature of gas.
Q. A wedge 1 of mass and with angle rests on a horizontal surface. Block 2 of mass is placed on the wedge. Assuming the friction to be negligible, find the acceleration of the wedge.
But we can multiply or divide a vector by any magnitude? Right?
29. A vector A is along the positive z-axis and its vector product with another vector B is zero, then vector B could be.
a) (icap+jcap+kcap)/root3
b) (icap+jcap+kcap)root3
c) (icap+jcap+kcap)/3
d) (icap+jcap+kcap)3
a)R
b)R sq
c)R cube
d)root R
Ans : root 2a want the sol
(1) 20 m
(2) 15 m
(3) 10 m
(4) 5 m
Q. In usual notations, the equation of trajectory of a projectile is y=x-0.1x2, where g=10 m/s2. Initial speed of thrown of the projectile is .
(1) 10 m/s
(2) 15 m/s
(3) 20 m/s
(4) 25 m/s