Fleas can jump quite high; experiments show that they can reach an altitude of 120 times...
Fleas can jump quite high; experiments show that they can reach an altitude of 120 times their own height when they jump vertically! Suppose instead that a flea can jump so that it lands a maximum distance of 18.00 cm away. What is the take-off speed for this flea?
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Fleas can jump quite high; experiments show that they can reach
an altitude of 120 times...
A particular cat flea (Ctenocephalides felis) has a mass of 5.0 x 10kg. Like most fleas,...
A particular cat flea (Ctenocephalides felis) has a mass of 5.0 x 10kg. Like most fleas, this one can jump many times higher than its own height. When jumping, it accelerates from rest through a distance of 0.40 mm, which allows it to reach a launch speed of 1.2 m/s, directed straight up. Use g = 9.8 m/s. [2 points] (a) Assuming constant acceleration, calculate the magnitude of the flea's acceleration while it is accelerating upward. [2 points] (b) For...
2. Excellent human jumpers can leap straight up to a height of 120 cm off the...
2. Excellent human jumpers can leap straight up to a height of 120 cm off the ground. To reach this height, with what speed would a person need to leave the ground? Express your answer to two significant figures and include the appropriate units. 3. A basketball player can jump to a height of 1.1 m off the ground, so he can easily dunk a basketball. For such a leap, what is his "hang time" - the time spent in...
Suppose the vertical height h that Supergirl can jump after she compresses her tendons a distance...
Suppose the vertical height h that Supergirl can jump after she compresses her tendons a distance x1 (beyond her unstretched length) is 25m. How high would she jump after she has compresses her tendons an additional 10% more than before (that is a distance 1.10x1 beyond her unstretched length)? A block of mass 3kg slides along a horizontal table with speed 10m/s. At x = 0 it hits a spring with spring constant 10N/m and begins to experience a friction...
A 110-kg basketball player can jump a vertical distance of 1.3 meters (approx. 4 feet). For...
A 110-kg basketball player can jump a vertical distance of 1.3 meters (approx. 4 feet). For this entire problem, assume that the athlete has NO horizontal motion. (Ignore air resistance.) 6. (2 pts.) What must be the player's initial vertical velocity as he leaves the ground? A. 3.4m/s B. 5.0 m/s D. 9.2 m/s E II m/s C. 7.6 m/s 7. (I pt.) At the moment the athlete reaches his maximum height, which of the following is/are equal to zere?...
A rocket carrying a new 945-kg satellite into orbit misfires and places the satellite in an...
A rocket carrying a new 945-kg satellite into orbit misfires and places the satellite in an orbit with an altitude of 175 km, well below its operational altitude in low-Earth orbit. (a) What would be the height of the satellite's orbit if its total energy were 450 MJ greater? km (b) What would be the difference in the system's kinetic energy? (Include the sign of the value in your answer.) Mj (c) What would be the difference in the system's...
. On your way to your first stop, the Moon, you do the standard tourist things:...
.
On your way to your first stop, the Moon, you do the standard
tourist things: First, you check out your what your weight will be
on the Moon. Please don’t look up lunar gravity. Calculate it
instead from the values given above. Show all formulas used and
calculations below.
Weight on Earth (lbs.) : 600N or 132lb
Weight on Moon (lbs.):
Everyone loves to jump on the moon! So how high will you be able
to jump? try jumping...
Please Show alll work. 1.A person’s blood pressure is 120/70 (measured in mmHg). What must the...
Please Show alll work. 1.A person’s blood pressure is 120/70 (measured in mmHg). What must the height of an IV bag be so that blood is not pushed into the IV line by the blood pressure? 2. A graduate student doing an experiment puts 0.150 moles of helium into a cylinder with a moveable piston. The helium is at a pressure of 1.0 atm and a temperature of 30 °C at the beginning of the experiment. They then compress the...
A 11-2 A rock with a diameter of 20 cm is dropped from a very high...
A
11-2 A rock with a diameter of 20 cm is dropped from a very high cliff. Using the 01pts drag-force equation F-(0.25) density of airXcross-sectional area)v2, estimate the time it will take for the rock to reach terminal velocity. The density of air is about 1.2 kg/m3. Submission History Incorrect. Your answer: "5 min". Score: 0/0.1 You may resubmit below: OA. 30s 5 min C. 30 min OD. 2 hours ов. 11-3 A wrench of mass 1.5 kg is...
Projectile A is fired at a speed Vo at an angle 0 above horizontal as shown...
Projectile A is fired at a speed Vo at an angle 0 above horizontal as shown and projectile B is fired at the sar but at a speed of 2%. Use this for Questions #1-7. angle Draw the initial velocity vectors for both projectile A and projectile B. Remember that the length of your arrows is important. 1. 2. Compare the initial horizorntal and vertical velocities of projectiles A and B. Be specific. Explain your answers. 3. Compare the horizontal...
Projectile A is fired at a speed Vo at an angle 0 above horizontal as shown...
Projectile A is fired at a speed Vo at an angle 0 above horizontal as shown and projectile B is fired at the same angle but at a speed of 2 g. Use this for Questions # 1-7. Draw the initial velocity vectors for both projectile A and projectile B Remember that the length of your arrows is important 1. Compare the initial horizontal and vertical velocities of projectiles A and B. Be specilic. Explain your answers 2. 3. Compare...
A particular cat flea (Ctenocephalides felis) has a mass of 5.0 x 10kg. Like most fleas, this one can jump many times higher than its own height. When jumping, it accelerates from rest through a distance of 0.40 mm, which allows it to reach a launch speed of 1.2 m/s, directed straight up. Use g = 9.8 m/s. [2 points] (a) Assuming constant acceleration, calculate the magnitude of the flea's acceleration while it is accelerating upward. [2 points] (b) For...
A 110-kg basketball player can jump a vertical distance of 1.3 meters (approx. 4 feet). For this entire problem, assume that the athlete has NO horizontal motion. (Ignore air resistance.) 6. (2 pts.) What must be the player's initial vertical velocity as he leaves the ground? A. 3.4m/s B. 5.0 m/s D. 9.2 m/s E II m/s C. 7.6 m/s 7. (I pt.) At the moment the athlete reaches his maximum height, which of the following is/are equal to zere?...
A rocket carrying a new 945-kg satellite into orbit misfires and places the satellite in an orbit with an altitude of 175 km, well below its operational altitude in low-Earth orbit. (a) What would be the height of the satellite's orbit if its total energy were 450 MJ greater? km (b) What would be the difference in the system's kinetic energy? (Include the sign of the value in your answer.) Mj (c) What would be the difference in the system's...
.
On your way to your first stop, the Moon, you do the standard
tourist things: First, you check out your what your weight will be
on the Moon. Please don’t look up lunar gravity. Calculate it
instead from the values given above. Show all formulas used and
calculations below.
Weight on Earth (lbs.) : 600N or 132lb
Weight on Moon (lbs.):
Everyone loves to jump on the moon! So how high will you be able
to jump? try jumping...
A
11-2 A rock with a diameter of 20 cm is dropped from a very high cliff. Using the 01pts drag-force equation F-(0.25) density of airXcross-sectional area)v2, estimate the time it will take for the rock to reach terminal velocity. The density of air is about 1.2 kg/m3. Submission History Incorrect. Your answer: "5 min". Score: 0/0.1 You may resubmit below: OA. 30s 5 min C. 30 min OD. 2 hours ов. 11-3 A wrench of mass 1.5 kg is...
Projectile A is fired at a speed Vo at an angle 0 above horizontal as shown and projectile B is fired at the sar but at a speed of 2%. Use this for Questions #1-7. angle Draw the initial velocity vectors for both projectile A and projectile B. Remember that the length of your arrows is important. 1. 2. Compare the initial horizorntal and vertical velocities of projectiles A and B. Be specific. Explain your answers. 3. Compare the horizontal...
Projectile A is fired at a speed Vo at an angle 0 above horizontal as shown and projectile B is fired at the same angle but at a speed of 2 g. Use this for Questions # 1-7. Draw the initial velocity vectors for both projectile A and projectile B Remember that the length of your arrows is important 1. Compare the initial horizontal and vertical velocities of projectiles A and B. Be specilic. Explain your answers 2. 3. Compare...
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