Study Help
Browse Study Help
Resistance, RQ, varies with temperature according to the formula R = R∘ (1 + αt). Evaluate R, correct to 3 significant figures, given R∘ = 14.59, a = 0.0043 and t = 80
Price: $1.59
Mechanical Engineering
The time of swing, t seconds, of a simple pendulum is given by t = l/g Determine the time, correct to 3 decimal places, given that l = 12.9 and g = 9.81
Price: $1.59
Mechanical Engineering
Force f newton’s is given by the formula f = (Gm^1 m^2)/d^2 where m^1 and m^2 are massed d their distance apart and G is a constant. Find the value of the force given that G = 6.67×〖10〗^(-11), m^1 = 7.36, m^2= 15.5 and d= 22.6. Express the answer in standard form, correct to 3 significant figures.
Price: $1.59
Mechanical Engineering
The volume V cm3 of a right circular cone is given by V = πr2h. Given that radius r = 2.45 cm and height h = 18.7 cm, find the volume, correct to 4 significant figures
Price: $1.59
Mechanical Engineering
The power, P watts, dissipated in an electrical circuit is given by the formula P=v2/r. Evaluate the power, correct to 4 significant figures, given that V = 230 V and R = 35.63 Q
Price: $1.59
Mechanical Engineering
Density =mass/volume. Find the density when the mass is 6.45 kg and the volume is 300 × 〖10〗^(-6) cm^3
Price: $1.59
Mechanical Engineering
The area, A, of a circle is given by A = πr2. Determine the area correct to 2 decimal places, given radius r = 5.23 m
Price: $1.59
Mechanical Engineering
Velocity v is given by v = u + at. If u = 9.54 m/s, a = 3.67 m/s2 and t = 7.82 s, find v, correct to 3 significant figures
Price: $1.59
Mechanical Engineering
