The magnetic field B at a distance r from a long straight wire carrying current I is given by B = (μ₀I)/(2πr).

Power = Work / Time = 200 J / 5 s = 40 W.

Power = Work / Time = 2000 J / 5 s = 400 W.

Power is calculated using the formula P = W/t. Here, W = 500 J and t = 10 s. Thus, P = 500 J / 10 s = 50 W.

Power = Work / Time = 500 J / 10 s = 50 W.

Power is calculated as work done divided by time taken. Here, Power = 500 J / 10 s = 50 W.

Useful work output can be calculated using the formula: Useful Work = Efficiency * Input Energy. Here, Useful Work = 0.8 * 1000 J = 800 J.

When a magnetic field is applied perpendicular to a loop of wire, the magnetic flux through the loop is maximized, resulting in maximum induced EMF according to Faraday's law.

Using the right-hand rule, point your thumb in the direction of the velocity (to the right) and your fingers in the direction of the magnetic field (into the page). Your palm will face out of the page, indicating the direction of the force.

Magnetic flux (Φ) = B * A = B * πr². Here, A = π(0.1)² = 0.01π m². Thus, Φ = 0.1 * 0.01π = 0.01π Wb ≈ 0.0314 Wb.

Minimum possible mass = Measured value - Error = 75 - 0.5 = 74.5 kg

A linear stress-strain relationship indicates that the material behaves elastically within the limit of proportionality.

Plastic deformation means that the material does not return to its original shape after the load is removed.

A high shear modulus indicates that the material is very stiff and resists shear deformation.

A Poisson's ratio of 0.3 indicates that the material will contract laterally when stretched.

A Poisson's ratio of 0.3 means that the lateral strain is 0.3 times the axial strain.

A Poisson's ratio of 0.3 implies that the material contracts laterally when stretched.

A high Young's modulus indicates that the material is very elastic.

When a material is stretched beyond its elastic limit, it undergoes permanent deformation and does not return to its original shape.

Leading zeros are not significant. The significant figures are 4, 5, 6, which gives a total of 4 significant figures.

The measurement 0.00780 m has three significant figures (the zeros before the 7 are not significant, but the zero after the 8 is).

The leading zeros are not significant, but the trailing zero after 78 is significant. Therefore, it has 3 significant figures.

Leading zeros do not count as significant figures. The significant figures in 0.007890 are 7, 8, 9, and 0, which totals to 4 significant figures.

The number 1500 m has 2 significant figures unless specified otherwise (e.g., with a decimal point). Without a decimal, trailing zeros are not counted.

Without a decimal point, trailing zeros are not considered significant. Therefore, 1500 has 2 significant figures.

Total time range = 15.0 ± 0.5 = 14.5 s to 15.5 s.

Using the equation λ = hc/E, where E = 2 eV = 2 * 1.6 x 10^-19 J, we find the minimum wavelength λ = (6.63 x 10^-34 J·s * 3 x 10^8 m/s) / (2 * 1.6 x 10^-19 J) = 310 nm.

The threshold wavelength can be calculated using the equation λ = hc/W. Substituting h = 4.14 x 10^-15 eV·s, c = 3 x 10^8 m/s, and W = 2 eV gives λ = 620 nm.

The maximum kinetic energy can be calculated using KE = hf - φ. Here, KE = 5.0 eV - 2.0 eV = 3.0 eV.

Maximum wavelength (λ) = hc/Φ = (1240 nm·eV)/(3 eV) = 413.33 nm.