Physics, 10.05.2021 18:30, christiancase06
An ore cart of mass 1200 kg is rolling at a speed of 10.8 m/s across a flat surface. A crane dumps ore into the cart from directly above it
after which the cart travels at 9.3 m/s. What mass of ore did the crane add to the cart? Assume that frictional forces with the flat surface a
negligible.
240 kg
110 kg
190 kg
92 kg
Answers: 3
Physics, 22.06.2019 10:10, natalieagustinlop54
Henry, whose mass is 95 kg, stands on a bathroom scale in an elevator. the scale reads 830 n for the first 2.4 s after the elevator starts moving, then 930 n for the next 2.4 s. part a what is the elevator's speed 4.8 s after starting? express your answer with the appropriate units.
Answers: 2
Physics, 22.06.2019 18:00, hannacarroll2539
Athin nonconducting rod with a uniform distribution of positive charge q is bent into a circle of radius r. the central perpendicular axis through the ring is a z-axis, with the origin at the center of the ring. a) what is the magnitude of the electric field due to the rod at z = 0? n/c (b) what is the magnitude of the electric field due to the rod at z = infinity? n/c (c) in terms of r, at what positive value of z is that magnitude maximum? r (d) if r = 4.00 cm and q = 9.00 µc, what is the maximum magnitude? n/c
Answers: 1
Physics, 22.06.2019 18:30, july00
En un laboratorio, nakisha mezcla una solución de hidróxido de sodio con un indicador llamado fenolftaleína. cuando se combinan, crean una solución de color rosa. nakisha se pregunta si la mezcla de otras soluciones con fenolftaleína también creará este color rosa. ? cómo podría nakisha utilizar el proceso de investigación científica para determinar si la mezcla de otras soluciones con fenolftaleína también creará un color rosa? marque las que correspondan.
Answers: 2
Physics, 22.06.2019 19:30, paigehixson342
Coal contains energy. a. light b. kinetic c. chemical d. mechanical
Answers: 1
An ore cart of mass 1200 kg is rolling at a speed of 10.8 m/s across a flat surface. A crane dumps o...
Health, 16.07.2019 21:30
Mathematics, 16.07.2019 21:30
Biology, 16.07.2019 21:30