A periodic wave with a wavelength = 2 m has a speed V = 4 m/s. What is the wave's frequency?

A body is found inside a house. the body isn't stiff, but the body temperature has dropped to room temperature. What would you estimate as the postmortem interval? a) 24-36 hours b) 12-18 hours c) 18-24 hours d) 36 hours

The substances in the table are combined, and Substance 1 loses 40 calories of heat. How many calories of heat will Substance 2 eventually gain? A) 0 B) 20 C) 40 D) 80

Darrel noticed that his finger felt warmer in the ice water then did his left finger which of the following does the experiment show

An 18.0 kg box is released on a 34.0° incline and accelerates down the incline at 0.270 m/s2. find the friction force impeding its motion. how large is the coefficient of friction?

The Standard Kilogram is a platinum-iridium cylinder 39 mm in height and 39 mm in diameter. What is the density of the material? density=m/v mass=1kg and volume being volume of a cylinder.

An object has an acceleration of 24 m/s/s. How long would it take the stationary object to reach a velocity of 6.8 m/s?

What is normal distribution in statistics?

Which of the following water samples would be considered acidic

A linearly-polarized electromagnetic (EM) wave has an electric field with amplitude 1000 V/m. You hold a a linear polarizer in front of it and rotate the polarizer so that all of the EM wave is blocked. You then rotate the polarizer 30 degree.

Let y'=4 x. find all values of r such that y = rx^{2} satisfies the differential equation. if there is more than one correct answer, enter your answers as a comma separated list.