1) jika dibutuhkan 150 joule untuk menaikan suhu balok dari 10 derajat menjadi 40 derajat, maka kapasitas kalor suatu balok adalah? a. 5 j/°c
b. 10 j/°c
c. 15 j/°c
d. 20 j/°c

2) suatu zat cair bermassa 5 kg dipanaskan dari suhu 25°c menjadi 75°c membutuhkan panas sebesar 25,000 joule. maka kalor jenis zat cair tersebut adalah?

a. 1000 j/kg°c
b. 500 j/kg°c
c. 200 j/kg°c
d. 100 j/kg°c

mohon bantuannya di kumpul malam ini jam 11:59 am

Ajogger accelerates from rest to 4.86 m/s in 2.43 s. a car accelerates from 20.6 to 32.7 m/s also in 2.43 s. (a) find the magnitude of the acceleration of the jogger. (b) determine the magnitude of the acceleration of the car. (c) how much further does the car travel than the jogger during the 2.43 s?

Amajor difference radio waves, visible light, and gamma rays is the of the photons, which results in different photon frequencies and wavelengths

People with normal vision cannot focus their eyes underwater if they aren't wearing a face mask or goggles and there is water in contact with their eyes. in a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina.with the simplified model of the eye, what corrective lens (specified by focal length as measured in air) would be needed to enable a person underwater to focus an infinitely distant object? (be careful-the focal length of a lens underwater is not the same as in air! assume that the corrective lens has a refractive index of 1.62 and that the lens is used in eyeglasses, not goggles, so there is water on both sides of the lens. assume that the eyeglasses are 2.05cm in front of the eye.)