Why does a glass rod become positively charged when it is rubbed with a silk cloth?

the electrons from the glass rod are transferred to the silk cloth.

the protons from the glass rod are transferred to the silk cloth.

all the charges from the glass rod are transferred to the silk cloth.

all the charges from the silk cloth are transferred to the glass rod.

the protons from the silk cloth are transferred to the glass rod.

Matt is driving down 7th street. he drives 150 meters in 18 sec. assuming he doesn’t slow down or speed up, what is his speed?

1.)the isotope cobalt-60 has a nuclear mass of 59.933820 u calculate the mass defect of cobalt-60 using the following information. mass of proton: 1.007825 u mass of neutron: 1.008665 u 1 u = 931.5 mev 2.)the isotope cobalt-60 has a nuclear mass of 59.933820 u calculate the binding energy of cobalt-60 using the following information. mass of proton: 1.007825 u mass of neutron: 1.008665 u 1 u = 931.5 mev 3.)the isotope cobalt-60 has a nuclear mass of 59.933820 u calculate the binding energy per nucleon of cobalt-60 using the following information. mass of proton: 1.007825 u mass of neutron: 1.008665 u 1 u = 931.5 mev

By what factor does the drag force on a car increase as it goes from 65 to 110 km/h?