A block of mass 9.5kg rests on a slope an angle of 23.0∘ relative to the horizontal. What is the size of the contact force normal to the slope, in Newtons?

Use a gravitational acceleration value of g = 9.8m/s^2.

A car with a mass of 1245 kg, traveling at + 29 m/s strikes another car (2175 kg) traveling at - 10 m/s. If the two cars are entangled together after the collisions, with what velocity will they travel?

Solve each problem. Be sure to show your work and give a final answer with units rounded to the given number of significant figures. 1) Find the voltage on a circuit with a resistance of 12.5 Ω if it has a current of 2.35 A. 2) If a circuit with a 9.

suppose mario is meeting a friend at noon. if he leaves his house at 11:55 a. m., at what average speed does he have to travel to make it there on time? write you're answer in m/s.

Is it safe to look at the sun through your windshield?

What are 2 ways the velocity of an object can be changed

Taking the direction west to be positive, and east to be negative, what is the average acceleration of a jet ski that goes from rest to 10 m/s west in 4 seconds? A. 2.5 m/s2 B. 0.4 m/s2 C. - 0.4 m/s2 D. - 2.5 m/s2

One consequence of turbulence is mixing. Different layers of fluid flow cross over one another very easily, and get blended together.

If you were going to describe the relationship between current, voltage, and power, you could say:? A "If there is a decrease in power, there must have been an increase in either current or voltage.

Green light shines through a 130-mm-diameter hole and is observed on a screen. if the hole diameter is increased by 20%, does the circular spot of light on the screen decrease in diameter, increase in diameter, or stay the same?

Which forces do not require contact between objects in order to exert a push or pull? select all that apply gravitational force between the earth and an object tension force between an object and a rope magnetic force between two magnets frictional