Un proyectil se dispara de tal forma que su componente vertical inicial es de 27 m/s y su componente horizontal inicial es de 34 m/s. Encuentra... a) la velocidad inicial del proyectil (magnitud y dirección).
b) el tiempo que permanece en el aire el proyectil.
c) la distancia horizontal recorrida.

Work out sian speed for the first 30 minutes of her journey. give your answer in km/h.

Why should seat belts not be mandatory quick plz

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