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Physics 101 Mechanics
October 2021
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Physics 101 Mechanics
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October 14, 2021
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October 14 of 2021
Determine the amount spring compressed when 300 grams mass stops
Mitosis is the normal process by which a cell nucleus divides. During this division, a spindle is built by the cell and acts to align and stretch duplicated sister chromosomes (chromatids) before they are segregated into daughter cells. Say the spindle is subjecting a chromatid to 2 tension…
You move the 50.0-kgcrate by pulling upward on the rope at an angle of 30° above the horizontal, and you exert a force of 1.20 × 102N on the crate by pulling on the rope. a)How much work do you do on the crate if you pull the crate 5.0 m? (5.2 x 102J) b)Suppose ?k= 0.200. How much work done…
A balloon contains 3.9 liters of nitrogen gas at a temperature of 84 K and a pressure of 101 kPa. If the temperature of the gas is allowed to increase to 28°C and the pressure remains constant, what volume will the gas occupy?
A 6.0 kg block initially at rest is pulled to the right along a horizontal surface by a constant horizontal force of 12 N. Suppose the force F is applied at an angle ϑ, instead, at what angle this force should be applied to achieve the largest possible speed after the block has moved 3.0 m to…
A 0.140kg baseball traveling 35.0 m/s strikes the catchers mitt,which, in bringing the ball to rest, recoils backward 11.0cm. What was the average force applied by the ball in the glove? What is the average force applied by the glove on the ball?
A person pushes a 14.0 kg lawn mover at constant speed with a force of FA=88.0N directed along the handle, which is at an angle of 45.0 to the horizontal.(a) Draw the free body diagram showing all forces acting in the mower.(b) calculate the horizontal friction force in the mover then (c) the…
A pair of fuzzy dice is hanging by a string from your rear view mirror. While you are accelerating from a stoplight to 28.0m/s in 6.0s, what angle does the string make with the vertical? (hint: draw and label a very complete FBD)
A 0.140kg baseball travel king 35.0 m/s strikes the catchers mitt, which, in bringing the ball to rest, recoils backward 11.0cm. What was the average force applied by the ball on the glove? What is the average force applied by the glove in the ball?
A 70kg box is pulled by an incredibly sweaty man with a 400N force at an angle of 30 degrees to the horizontal. The force of kinetic friction is 75N. He works in a hot factory, don’t be too judgmental.(a) Draw a quantitative force diagram for the box.(b) Determine the acceleration of the box.
7. A persoe punhes a \( 140-\mathrm{kg} \mathrm{~ l a w n ~ m o w e r ~ a t ~ c o} \) force of \( \mathrm{F}_{\mathrm{A}}=\mathrm{sk} .0 \mathrm{~N} \mathrm{~ d i r e w e d ~ a l o f g ~ t h e ~ h} \) of \( 45.0^{r} \) bo the horixontal (i) Draw the free-boly diagum showing alt foeces wcting en…
A person jumps from the roof of a house 3.9m high. When he strikes the ground below, he bends his knees so that his torso decelerates over an approximate distance of 0.70m. If the mass of his torso (excluding legs) is 42kg, find (a) his velocity just before his feet strike the ground, and (b)…
A 70kg box is pulled by an incredibly sweaty man with a 400N force at an angle of 30 degrees to the horizontal. The force of kinetic friction is 75N. He works in a hot factory, don’t be too judgmental.(a) Draw a quantitative force diagram for the box.(b) Determine the acceleration of the box.
A worker pushes a 7kg shipping box along a roller track. Assume friction is small enough to be ignored because of the rollers. The workers push is 25N directed down and to the right at the angle of 20. (a) Draw a force diagram for the block.(b) Determine the horizontal-component of the worker’s…
A student observing the ocean notes that n = 8 crests break in t = 3.2 minutes?
You move the 51.0-kg crate by pulling upward on the rope at an angle of 30° above the horizontal. a)Draw the crate free-body diagram .b)How hard must you pull to keep it moving with constant velocity? Assume that μk = 0.40. (188 N)c)What is the crate normal force? ( 406 N)
The lower left chamber of the heart (the left ventricle) pumps blood into the aorta. According to biophysical measurements, a left ventricular contraction lasts about 0.20 s and pumps roughly 83 cc (cubic centimetres) of blood. We will assume that the blood starts from rest and achieves a…
Determine the amount spring compressed when 300 grams mass stops
Mitosis is the normal process by which a cell nucleus divides. During this division, a spindle is built by the cell and acts to align and stretch duplicated sister chromosomes (chromatids) before they are segregated into daughter cells. Say the spindle is subjecting a chromatid to 2 tension…
You move the 50.0-kgcrate by pulling upward on the rope at an angle of 30° above the horizontal, and you exert a force of 1.20 × 102N on the crate by pulling on the rope. a)How much work do you do on the crate if you pull the crate 5.0 m? (5.2 x 102J) b)Suppose ?k= 0.200. How much work done…
A balloon contains 3.9 liters of nitrogen gas at a temperature of 84 K and a pressure of 101 kPa. If the temperature of the gas is allowed to increase to 28°C and the pressure remains constant, what volume will the gas occupy?
A 6.0 kg block initially at rest is pulled to the right along a horizontal surface by a constant horizontal force of 12 N. Suppose the force F is applied at an angle ϑ, instead, at what angle this force should be applied to achieve the largest possible speed after the block has moved 3.0 m to…
A 0.140kg baseball traveling 35.0 m/s strikes the catchers mitt,which, in bringing the ball to rest, recoils backward 11.0cm. What was the average force applied by the ball in the glove? What is the average force applied by the glove on the ball?
A person pushes a 14.0 kg lawn mover at constant speed with a force of FA=88.0N directed along the handle, which is at an angle of 45.0 to the horizontal.(a) Draw the free body diagram showing all forces acting in the mower.(b) calculate the horizontal friction force in the mover then (c) the…
A 0.140kg baseball travel king 35.0 m/s strikes the catchers mitt, which, in bringing the ball to rest, recoils backward 11.0cm. What was the average force applied by the ball on the glove? What is the average force applied by the glove in the ball?
A 70kg box is pulled by an incredibly sweaty man with a 400N force at an angle of 30 degrees to the horizontal. The force of kinetic friction is 75N. He works in a hot factory, don’t be too judgmental.(a) Draw a quantitative force diagram for the box.(b) Determine the acceleration of the box.
7. A persoe punhes a \( 140-\mathrm{kg} \mathrm{~ l a w n ~ m o w e r ~ a t ~ c o} \) force of \( \mathrm{F}_{\mathrm{A}}=\mathrm{sk} .0 \mathrm{~N} \mathrm{~ d i r e w e d ~ a l o f g ~ t h e ~ h} \) of \( 45.0^{r} \) bo the horixontal (i) Draw the free-boly diagum showing alt foeces wcting en…
A 70kg box is pulled by an incredibly sweaty man with a 400N force at an angle of 30 degrees to the horizontal. The force of kinetic friction is 75N. He works in a hot factory, don’t be too judgmental.(a) Draw a quantitative force diagram for the box.(b) Determine the acceleration of the box.
A student observing the ocean notes that n = 8 crests break in t = 3.2 minutes?
You move the 51.0-kg crate by pulling upward on the rope at an angle of 30° above the horizontal. a)Draw the crate free-body diagram .b)How hard must you pull to keep it moving with constant velocity? Assume that μk = 0.40. (188 N)c)What is the crate normal force? ( 406 N)
The lower left chamber of the heart (the left ventricle) pumps blood into the aorta. According to biophysical measurements, a left ventricular contraction lasts about 0.20 s and pumps roughly 83 cc (cubic centimetres) of blood. We will assume that the blood starts from rest and achieves a…