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kap26 [50]
2 years ago
6

Which ramp requires the least amount of force?

Physics
1 answer:
irinina [24]2 years ago
5 0
Length 4ft height 1ft
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Average speed can be represented by the mathematical expression
nevsk [136]

Average speed is defined as total distance moved in total interval of time

so it is given as

v_{avg} = \frac{distance}{time}

now here is we show distance by "d" and time by"t"

then we will have mathematical expression as follows

v = \frac{d}{t}

5 0
3 years ago
MATHPHYS HELP
rusak2 [61]

Answer:

16.4287

Explanation:

The force and displacement are related by Hooke's law:

F = kΔx

The period of oscillation of a spring/mass system is:

T = 2π√(m/k)

First, find the value of k:

F = kΔx

78 N = k (98 m)

k = 0.796 N/m

Next, find the mass of the unknown weight.

F = kΔx

m (9.8 m/s²) = (0.796 N/m) (67 m)

m = 5.44 kg

Finally, find the period.

T = 2π√(m/k)

T = 2π√(5.44 kg / 0.796 N/m)

T = 16.4287 s

3 0
3 years ago
What type of energy does mechanical energy turn into when friction is acting
umka2103 [35]
Thermal energy is the answer

Hope that helps
6 0
3 years ago
10. What is the acceleration due to gravity at a location
kherson [118]
The answer is 3) 3.00 m/s2
5 0
2 years ago
Compute the ratio of the rate of heat loss through a single-pane window with area 0.15 m2 to that for a double-pane window with
Rudik [331]

Answer:

2.80321285141

Explanation:

L_g = Thickness of glass = 4.5 mm

k_g = Thermal conductivity of glass = 0.8 W/mK

R_0 = Combined thermal resistance = 0.15\times m^2K/W

L_a = Thickness of air = 6.6 mm

k_a = Thermal conductivity of air = 0.024 W/mK

The required ratio is the inverse of total thermal resistance

\dfrac{2(L_g/k_g)+R_0+(L_a/k_a)}{(L_g/k_g)+R_0}\\ =\dfrac{2(4.5\times 10^{-3}/0.8)+0.15+(6.6\times 10^{-3}/0.024)}{(4.5\times 10^{-3}/0.8)+0.15}\\ =2.80321285141

The ratio is 2.80321285141

4 0
3 years ago
Read 2 more answers
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