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Suppose a rock is dropped off a cliff with an initial speed of 0 ms. What is the rocks speed after 5 seconds in ms if it encounters no air resistance?
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What are the two factors on which the resistance of a cylindrical conductors depends?
For conductor the resistance (R) is directly proportional to the length (L) of the conductor, and the area of cross-section (A). When you stretch the conductor to increase its length, its area of cross-section will decrease. The decrease in area of cross-section can be found in the following way: The volume of the cylinder will remain same. The initial volume of the cylinder is = A Х L Suppose, the area of cross-section becomes A/ and the resistance becomes R/. Hence, the resistance increases 4 times. Hope this helps you, Keep posting and have a nice day!
Why velocity is non zero when ball dropped to the ground?
The initial velocity of a dropped ball is zero in the y (up-down) direction. After it is dropped gravity causes an acceleration, which causes the velocity to increase. F = ma, The acceleration due to gravity creates a force on the mass of the ball.
A 6.65 kg laundry bag is dropped from rest at an initial height of 3.20 m?
So? Whats the question? _______________________________ It doesn't matter what it is (well, if we ignore air resistance), in Earth's gravity the object will accelerate at 9.8 meters per second per second. Dropped from an altitude H, you can use the formula =(2/9.8*H)^0.5 to calculate the time it takes (in seconds) to the ground. In the absence of air resistance, it will take 0.808 seconds to fall. The speed of the falling object at any moment can be calculated as the time multiplied by 9.8 meters per second per second. In the absence of air resistance, the laundry bag will be falling at a speed of 7.9 meters per second when it hits.
Ignoring air resistance what is the minimum initial speed a projectile must have at the Earths surface if the projectile is to escape the Earths gravitational pull?
8km/s
Why would the final kinetic energy before impact be less the initial potential energy of an object dropped from a kilometer height?
It is easiest to think of initial potential energy as the "distance" the object is able to fall. If it has not fallen the distance yet, then of course kinetic energy would be less.
Suppose a rock is dropped off a cliff with an initial speed of 0 What is the rock's speed after 5 seconds in if it encounters no air resistance?
49
Suppose a rock is dropped off a cliff with an initial speed of 0 ms What is the rock's speed after 3 seconds in ms if it encounters no air resistance?
29.4
Suppose a rock is dropped off a cliff with an initial speed of 0 ms What is the rock's speed after 5 seconds in ms if it encounters no air resistance?
49
Suppose a rock is dropped off a cliff with an initial speed of 0 m per sec What is the rocks speed after 5 seconds in m per sec if it encounters no air resistance?
9.8m/s(5)= 49
Suppose a rock is dropped off a cliff with an initial speed of 0 miles per second What is the rock's speed after 5 seconds in miles per second if it encounters no air resistance?
,033
Suppose a rock is dropped off a cliff with an initial speed of 0 ms What is the rocks speed after 3 seconds in ms if it encounters no air resistance?
The acceleration of gravity is 9.8 m/s2Speed after 3 sec = (9.8 x 3) = 29.4 m/s
If a Rock is dropped off a cliff with an initial speed of 0 ms What is the rock's speed after 3 seconds in ms if it encounters no air resistance?
speed is decided by v = a(t), where t is your time variable and a is your acceleration constant. after 3 seconds, your velocity v = (9.8m/s2)(3s) = 29.4m/s
Suppose a rock is dropped off a cliff with an initial speed of 0 miles per second What is the rocks speed after 3 seconds in miles per second if it encounters no air resistance?
The acceleration of gravity is 32.1 ft/sec2 .After 3 seconds, the rock's downward speed is (3 x 32.1) = 96.3 ft/sec.(96.3 ft/sec) x (1 mi / 5,280 ft) = (96.3 / 5,280) (ft - mi / sec - ft) = 0.0182 mile/sec (rounded)
What is initial primary resistance?
initial primary resistance is the first stage in revolt against the initial imposition of colonial rule. the africans ready resisted the ,imposition of colonial rule. they did not give the europeans the chance to impose their colonial policies.
Will my students find this tech boring after the initial exposure?
how am i suppose to know
Ammo fired down terminal velocity compared to ammo dropped at high altitude?
Fired ammunition from a firearm reaches a much higher initial velocity due to explosive propellant forces. In contrast, ammunition dropped from a high altitude reaches a terminal velocity where gravity pulling down is balanced by air resistance pushing up. The fired bullet maintains its higher velocity until slowed by air resistance and gravity, while dropped ammunition reaches a constant speed due to these opposing forces.
What is the balloons initial velocity when a water balloon is dropped from the fifth floor of a building?
If you simply release an object, the initial velocity is always zero.
