NEED HELP ASAP PLEASE

Physics

1 answer:

Marta_Voda [28]3 years ago

6 0

Answer:

It is Nice A since it's temp increases slower

Explanation:

hope this helped

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A 900kg car moving at 60m/s has approximately 320,000J of kinetic energy. Estimate it's new kinetic energy,if it is moving at 30

fomenos

Answer:4.0*10^5 joules

Explanation:

5 0

4 years ago

ANSWER 5 AND 8!!!!!;$$4$;$;

DedPeter [7]

Answer:

5 ) The mass, 6) with lubrication and using surfaces that are not rough

Explanation:

5) If two bodies are held regardless of their densities and can be combined by some chemical or physical process, the only physical property to be modified will be the mass of the resulting body.

Friction depends on the contact between two surfaces and when a body has a relative motion with respect to a contact surface. In order to reduce friction the contact surface must be lubricated, also the friction depends on the coefficient of friction between surfaces and the normal force exerted by the surface parallel to the area of contact with the body. Mathematically it can be expressed with the following equation.

$F_{f} = u*N\\where:\\u = friction coefficient\\N = normal force [Newtons]\\F_{f}= friction force [Newtons]$