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.

Low-grade uranium ore contains a fraction of a percent (by weight) of uranium; very high-grade ore (as is found in some deposits in Canada) can contain up to 20% uranium. A) If energy is extracted from uranium by fission of 235U (0.

Match the description to the proper category to differentiate reflection and refraction 1) speed of ray does not change 2) Ray bounces off a boundary 3) Direction found by law of reflection 4) Direction found by Snells Law 5) Speed of ray changes 6)

What is the mass of a falling rock if it hits the ground with a force of 147 newtons?

Subduction occurs because the sea floor is: more dense than the continental floor less dense than the continental floor more buoyant than the continental floor lighter than the continental floor

TP2 2) An example of a 3rd gen lever is: a) scissors b) the occipito-atloid joint c) the trolley to transport the O2 tube d) the biceps muscle

A 15 g turntable is covered with a uniform layer of dry ice that has a mass of 9.0 g. The angular speed of the turntable and dry ice is initially 0.75 rad/s. What is the angular speed of the turntable once all the dry ice has evaporated?

Rainwater was collected in water collectors at thirty different sites near an industrial basin and the amount of acidity (pH level) was measured. The mean and standard deviation of the values are 4.60 and 1.10 respectively.

A hot air balloon is rising straight up at a constant speed of 7 m/s. when the balloon is 12.0 m/s above the ground, a gun fires a pellet straight up from ground level with an initial speed of 30.0 m/s.

The atmosphere is an). O element O molecule O mixture O compound

What is the velocity of the car, in meters per second, just after it hits a 135-kg deer initially running at 10.5 m/s in the same direction? Assume the deer remains on the car.