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Questions in physics

[Terjawab] A mixture of oil and water is place in a glass beaker and stirred.which picture depicts what is most likely to happen after the Beaker sits for 3 minutes?

[Terjawab] A cheetah can run at approximately 100 km/hr, and a gazelle at 80 km/hr. If both animals are running at full speed, with the gazelle 70 meters ahead, how long will it take for the cheetah to catch its prey?

[Terjawab] Can a light ray be both reflected and refracted at the same time?

[Terjawab] A 2,000-kilogram car uses a braking force of 12,000 Newtons to stop in 5 seconds. What is the initial speed of the car?

[Terjawab] Terry, a 70-kilogram tailback, runs through his offensive line at a speed of 7.0 m/s. Jared, a 100-kilogram linebacker, running in the opposite direction at 6.0 m/s, meets Terry head-on and "wraps him up." What is the result of this tackle?

[Terjawab] Is there air resistance in space?

[Terjawab] Can someone give me four examples of how energy has the ability to cause motion or create change?

[Terjawab] What three variable factors determine the force of gravity between any two objects?

[Terjawab] If the force of friction acting on the sliding crate is 100 N, how much force will be applied to maintain a constant velocity? What will the net force be acting on the crate? What will be the acceleration?

[Terjawab] A golf club with 65 J of kinetic energy strikes a stationary golf ball with a mass of 46 g. The energy transfer is only 20% efficient. Calculate the initial speed of the golf ball.