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Is it possible to see real images without a screen?

Question #026bf

Question #9a373

Question #94ad3

Question #34f1c

How do you solve #x – 4 + 7 = 4#?

If a projectile is shot at an angle of #(7pi)/12# and at a velocity of #9 m/s#, when will it reach its maximum height?

Question #f7e9a

An object with a mass of #12 kg# is on a surface with a kinetic friction coefficient of # 2 #. How much force is necessary to accelerate the object horizontally at # 17 m/s^2#?

A projectile is shot from the ground at a velocity of #86 m/s# and at an angle of #(2pi)/3#. How long will it take for the projectile to land?

Question #e2ec5

An object with a mass of #8 kg# is on a plane with an incline of #  pi/12 #. If it takes #12 N# to start pushing the object down the plane and #9 N# to keep pushing it, what are the coefficients of static and kinetic friction?

Two boats defined by vectors? (See picture)

After absorbing a neutron, a Uranium235 nucleus can fission to produce Barium141 and krypton92. Calculate the energy that would be released from this fission of a Uranium235 atom. How do you work this out?