Советы от нейросети в категории momentum

Finding wavelength, energy, mass, and momentum of a photon

2024-01-27 06:38:11

To find the wavelength of a photon, we can use the formula λ=c/v, where c is the speed of light (3 x 10^8 m/s) and v is the frequency. By plugging in the given frequency of v=1.6 x 10^15 Hz, we get a wavelength of 1.875 x 10^-7 meters. To find the energy, we can use the equation E=hf, where h is Planck's constant (6.626 x 10^-34 J*s) and f is the frequency. By plugging in the same frequency, we get an energy of 1.06 x 10^-16 joules. To find the mass and momentum, we can use the equations E=mc^2 and p=hf/c respectively. By plugging in the energy and frequency, we get a mass of 1.18 x 10^-34 kilograms and a momentum of 3.36 x 10^-27 kg*m/s. Hope this helps!

Calculation of Momentum for a Moving Object

2023-12-12 19:55:18

Введите уравнение x = 3 - 8t + 6t² в формулу для расчета импульса, выразив массу тела и время в соответствующих единицах измерения. Полученный ответ будет равен импульсу тела массой 4 кг через 4 с от начала отсчёта времени, то есть 16 кг•м/с

Calculating Impulse and Force for a Moving Point

2023-12-06 06:14:48

According to the given equation, the trajectory of the point is given by x(t) = 5 - 8t + 4t^2. Since the mass of the point is 2 kg, the momentum can be calculated as p = mv = 2(5 - 8t + 4t^2) = 10 - 16t + 8t^2. To find the momentum after 2 seconds, we have to substitute t = 2 into the formula, which gives p(2) = 10 - 16(2) + 8(2)^2 = 10 - 32 + 32 = 10 N*s. Similarly, the momentum after 4 seconds is p(4) = 10 - 16(4) + 8(4)^2 = 10 - 64 + 128 = 74 N*s. Finally, the force causing this change in momentum can be found by differentiating the momentum with respect to time, which gives F = dp/dt = -16 + 16t. Substituting t = 2 and t = 4, we get F(2) = -16 + 16(2) = 16 N and F(4) = -16 + 16(4) = 48 N.