Relative speed = Speed of car + Speed of truck = 90 km/h + 60 km/h = 150 km/h.

Distance = Speed × Time = 60 km/h × 2.5 h = 150 km

Relative speed = 80 - 60 = 20 km/h. Distance apart after 1 hour = 20 km.

Relative speed = 80 - 60 = 20 km/h. Distance = speed * time = 20 * 2 = 40 km.

Minimum speed = Measured speed - Error = 60 - 2 = 58 km/h.

Absolute error = Relative error * Measured value = 0.05 * 60 = 3 km/h.

Number of hearts = 13. Probability = 13/52 = 1/4.

There are 26 red cards (hearts and diamonds). The probability of drawing a heart given that it is red is 13/26 = 1/2.

There are 13 hearts and 4 queens, but one of the queens is a heart. Thus, the probability is (13 + 4 - 1)/52 = 16/52 = 4/13.

There are 26 red cards (hearts and diamonds). The probability of drawing a heart given that the card is red is 13/26 = 1/2.

There are 13 hearts in a deck of 52 cards. The probability of drawing a heart is 13/52 = 1/4.

There are 4 queens in a deck of 52 cards. Probability = 4/52 = 1/13.

Using the formula A = P(1 + r)^n, we can set up the equation 3P = P(1 + r)^15. Solving for r gives approximately 6%.

The last term of an AP is given by a + (n-1)d. Here, 100 = 10 + (20-1)d. Solving gives d = 5.

Population after 3 years = 200,000 * (1 - 0.10)^3 = 200,000 * 0.729 = 145,800.

Expected affected = (1/200) × 1000 = 5 people.

Expected transmissions = 10% of 50 = 0.1 * 50 = 5 transmissions.

If R0 = 3, then 1 infected person can infect 3 others. Therefore, potential infections = 3 * 1 = 3 people.

Expected survivors = Total infected - (Mortality rate × Total infected) = 500 - (0.10 × 500) = 500 - 50 = 450.

This phenomenon is known as electromagnetic induction, where a changing magnetic field induces an electromotive force (EMF) in a conductor.

The phenomenon of a changing magnetic field inducing an electric field is known as electromagnetic induction.

Force F = qE = (1 × 10^-6 C)(1000 N/C) = 0.001 N.

Force F = qE = (10 × 10^-6 C) * (2000 N/C) = 0.02 N = 20 N.

Force F = qE = (10 × 10^-6 C) * (2000 N/C) = 0.02 N = 20 N.

V = k * q / r = (9 × 10^9) * (10 × 10^-6) / 2 = 4500 V.

Force F = qE = (10 × 10^-6 C) * (500 N/C) = 5 N.

Work done W = F * d = (E * q) * d = (500 N/C * 10 × 10^-6 C) * 0.1 m = 0.5 J.

Work done W = F * d = (E * q) * d = (500 N/C * 10 × 10^-6 C) * 2m = 0.01 J.

The force F on a charge in an electric field is given by F = qE. Here, F = 2 * 10^-6 C * 1000 N/C = 0.002 N.

V = k * q / r = (9 × 10^9) * (3 × 10^-6) / 0.5 = 54000 V.