The calculated coefficient of kinetic friction is 0.33125.'
The rate of kinetic friction the friction force to normal force ratio experienced by a body moving on a dry, uneven surface is known as k. The friction coefficient is the ratio of the normal force pressing two surfaces together to the frictional force preventing motion between them. Typically, it is represented by the Greek letter mu (). In terms of math, is equal to F/N, where F stands for frictional force and N for normal force.
given mass of the block=10 kg
spring constant k= 2250 Nm
now according to principal of conservation of energy we observe,
the energy possessed by the block initially is reduced by the friction between the points B and C and rest is used up in work done by the spring.
mgh= μ (mgl) +1/2 kx²
10 x 10 x 3= μ(600) +(1125) (0.09)
μ(600) =300 - 101.25
μ = 198.75÷600
μ =0.33125
The complete question is- A 10.0−kg block is released from rest at point A in Fig The track is frictionless except for the portion between point B and C, which has a length of 6.00m the block travels down the track, hits a spring of force constant 2250N/m, and compresses the spring 0.300m form its equilibrium position before coming to rest momentarily. Determine the coefficient of kinetic friction between the block and the rough surface between point Band (C)
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Answer:
The blue boat traveled 6.1 km farther west than the green boat
The green boat traveled 10.7 km farther south than the blue boat
Explanation:
The equation for linear uniform speed movement is
X(t) = X0 + v * t
Since we have two coordinates (X, Y) we use
X(t) = X0 + vx * t
Y(t) = Y0 + vy * t
The dock will be the origin of coordinates so X0 and Y0 will be zero. The X axis will be pointing west and the Y axis south.
The blue boat moves with a direction 24° south of west, so it will have speeds:
vxb = 104 * cos(24) = 95 km/h
vyb = 104 * sin(24) = 42.3 km/h
And the green boat:
vxg = 104 * cos(37.7) = 82.3 km/h
vyg = 104 * sin(37.7) = 63.6 km/h
After half hour the boats will have arrived at positions
Xb = 95 * 0.5 = 47.5 km
Yb = 42.3 * 0.5 = 21.1 km
And
Xg = 82.3 * 0.5 = 41.4 km
Yg = 63.6 * 0.5 = 31.8 km
The difference in positions of the boats
47.5 - 41.4 = 6.1 km
31.8 - 21.1 = 10.7 km
Answer:
Laws
Explanation:
i don’t have one but i hope ur doing well during this quarantine
It’s the wavelength I believe
Answer:
Explanation:
From the question we are told that:
Potential difference 
New Capacitor 
Generally the equation for Capacitor capacitance is mathematically given by
Generally the equation for New p.d' is mathematically given by
