Answer:
14.04 m/s
Explanation:
To find the velocity of the first car after the collision, we can use the equation of conservation of momentum:
m1v1 + m2v2 = m1'v1' + m2'v2'
We have the following data:
m1 = m1' = 328,
m2 = m2' = 790,
v1 = 19.1,
v2 = 13,
v2' = 15.1.
Using this data, we can find v1' (final velocity of the first car):
328 * 19.1 + 790 * 13 = 328 * v1' + 790 * 15.1
16534.8 = 328 * v1' + 11929
328 * v1' = 4605.8
v1' = 14.04 m/s
Power is defined as the rate of doing work or the work per unit of time. The first step to solve this problem is by calculating the work which can be determined by the equation:
W = Fd
where:
F = force exerted = ma
d = distance traveled
m = mass of object
a = acceleration
Acceleration is equivalent to the gravitational constant (9.81 m/s^2) if the force exerted has a vertical direction such as lifting.
W = Fd = mad = 63(9.81)(7) = 4326.21 Joules
Now that we have work, we can calculate power.
P = W/t = 4325.21 J / 5 seconds = 865.242 J/s or watts
Convert watts to horsepower (1 hp = 745.7 watts)
P = 865.242 watts (1hp/745.7 watts) = 1.16 hp
<span>If you are looking for a substance that will easily dissolve in water, you should look for a substance with which properties? it is b. high solubility
</span>
Answer:
(a) I (Moment of inertia)=0.0987 
(b) W(Angular Speed)=2.66 
Explanation:
Given data
m (Monkey mass)= 1.80 kg
d=2.50 m
T (Time Period)=0.940 s
Angle= 0.400 rad
(a) I (Moment of Inertia)=?
(b) W (Angular Speed)=?
For part (a) I (Moment of Inertia)=?
Time Period Formula is given as
After Simplifying we get
For Part (b) Angular Speed
From Kinetic Energy we get
Pontential Energy
KE=PE
Answer:
Mg Cosθ
Explanation:
mass of block = M
Angle of inclination = θ
coefficient of friction = μk
The force of gravity acts of the block is Mg
there are two components of the weight
the component parallel to the inclined plane is Mg Sinθ
the component perpendicular to the plane of inclined is Mg Cosθ
So, the normal force exerted by the inclined is Mg Cosθ
