Hi!
Instead of providing the answer outright, I'll assist you in grasping it using straightforward concepts.
As electromagnetic waves (consider: light) progress, they oscillate up and down. The frequency of light indicates the number of up-down oscillations occurring each second (1hz means 1 up-down oscillation per second, while 1mhz equals 1 million up-down oscillations per second). Each of these oscillations is known as a single wave.
Since we also have the information about how many meters light covers in 1 second (290,000,000 meters), it's easy to conclude that (regarding this specific question) for every '290,000,000' meters, there are '835,000,000' oscillations or waves.
Calculating the length of a single wave requires a simple division! - which refers to the wavelength of light at the specified frequency.
290,000,000 / 835,000,000 = 0.34m (or 34cm)
The formula for range is:

Given values are:

where θ equals 14.1 degrees

Using the equation above,

The calculated range is 66.7 meters.
Therefore, the range is approximately 66.1 meters.
The response is 176 minutes. The translation of 456 g equals 0.456 kg. The specific heat of ice is 2093 J kg⁻¹, used to calculate heat required for a 25-degree rise, determined by mass multiplied by specific heat and temperature increase. The necessary calculations yield a total heat load of 176164 J. Finally, by dividing heat required by heat supply rate, we ascertain that it will take approximately 176.16 minutes.
The average velocity of the sled can be expressed with the formula vavg = s/t. Hello! The calculation for average velocity involves determining the distance traveled over time. Thus, vavg = Δx/Δt, where vavg represents average velocity, Δx is the distance traversed, and Δt is the duration of time taken. We know both the distance (s) and the time (t) required for the sled to cover that distance, which allows us to compute the average velocity using the formula vavg = s/t. Wishing you a great day!