# Recent questions tagged mass

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What are the various components of $E=mc^2$?
What are the various components of $E=mc^2$?What are the various components of $E=mc^2$? ...
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If you start with 24 grams of a radioactive element with a half-life of one month, how many grams of the radioactive element will be left after 2 months?
If you start with 24 grams of a radioactive element with a half-life of one month, how many grams of the radioactive element will be left after 2 months?If you start with 24 grams of a radioactive element with a half-life of one month, how many grams of the radioactive element will be left after 2 mont ...
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Two bodies of equal mass are moving in circular paths at equal speed.
Two bodies of equal mass are moving in circular paths at equal speed.Two bodies of equal mass are moving in circular paths at equal speed. The first body moves in a circle whose radius is twice as great as that of the s ...
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After a projectile is fired horizontally near the earth's surface, the horizontal component of its velocity, neglecting any air resistance:
After a projectile is fired horizontally near the earth's surface, the horizontal component of its velocity, neglecting any air resistance:After a projectile is fired horizontally near the earth's surface, the horizontal component of its velocity, neglecting any air resistance: w) increa ...
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Lenz's law is an example of the law of conservation of one of the following. Is it conservation of:
Lenz's law is an example of the law of conservation of one of the following. Is it conservation of:Lenz's law is an example of the law of conservation of one of the following. Is it conservation of: w) mass x) charge y) momentum z) energy ...
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A satellite of mass "M" is in orbit around the earth. If a second satellite of mass "2M" is to be placed in the same orbit, the second satellite must have a velocity which is:
A satellite of mass "M" is in orbit around the earth. If a second satellite of mass "2M" is to be placed in the same orbit, the second satellite must have a velocity which is:A satellite of mass &quot;M&quot; is in orbit around the earth. If a second satellite of mass &quot;2M&quot; is to be placed in the same orbit, the se ...
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A car is moving along a straight horizontal road at a speed of 20 meters per second. The brakes are applied and a constant force of 5000 Newtons decelerates the car to a stop in 10 seconds. The mass of the car is:A car is moving along a straight horizontal road at a speed of 20 meters per second. The brakes are applied and a constant force of 5000 Newtons decel ...
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A ball falling vertically from rest for 3 seconds travels very nearly:
A ball falling vertically from rest for 3 seconds travels very nearly:A ball falling vertically from rest for 3 seconds travels very nearly: w) 14.7 meters x) 29.4 meters y) 44.1 meters z) 88.2 meters ...
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The half-life of an isotope of an element is 5 days. The mass of a 10 gram sample of this isotope remaining after 20 days is:
The half-life of an isotope of an element is 5 days. The mass of a 10 gram sample of this isotope remaining after 20 days is:The half-life of an isotope of an element is 5 days. The mass of a 10 gram sample of this isotope remaining after 20 days is: w) 0.312 grams x) 0.62 ...
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If the distance between the earth and moon were halved, the force of the attraction between them would be:
If the distance between the earth and moon were halved, the force of the attraction between them would be:If the distance between the earth and moon were halved, the force of the attraction between them would be: w) one fourth as great x) one half as gre ...
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Two steel balls are at a distance S from one another. As the mass of ONE of the balls is doubled, the gravitational force of attraction between them is:
Two steel balls are at a distance S from one another. As the mass of ONE of the balls is doubled, the gravitational force of attraction between them is:Two steel balls are at a distance S from one another. As the mass of ONE of the balls is doubled, the gravitational force of attraction between them i ...
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The time needed for a net force of 10 newtons to change the velocity of a 5 kilograms mass by 3 meters/second is:
The time needed for a net force of 10 newtons to change the velocity of a 5 kilograms mass by 3 meters/second is:The time needed for a net force of 10 newtons to change the velocity of a 5 kilograms mass by 3 meters/second is: w) 1.5 seconds x) 6 seconds y) 16 ...
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A 10 kilogram mass rests on a horizontal frictionless surface. A horizontal force of 5 Newtons is applied to the mass. After the force has been applied for 1 second, the velocity of the mass is:A 10 kilogram mass rests on a horizontal frictionless surface. A horizontal force of 5 Newtons is applied to the mass. After the force has been applie ...
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If the resultant force acting on a body of constant mass is zero, the body's momentum is:
If the resultant force acting on a body of constant mass is zero, the body's momentum is:If the resultant force acting on a body of constant mass is zero, the body's momentum is: w) increasing x) decreasing y) always zero z) constant ...
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A body of mass $3 \mathrm{~kg}$ moves with a velocity of $8 \mathrm{~ms}^{-1}$. It collides with a second body moving in the same direction with a velocity of $5 \mathrm{~ms}^{-1}$.(a) A body of mass $3 \mathrm{~kg}$ moves with a velocity of $8 \mathrm{~ms}^{-1}$. It collides with a second body moving in the same direction wi ...
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A body $\mathrm{P}$ of mass $\mathrm{q} \mathrm{kg}$ is suspended by two light inextensible strings $\mathrm{AB}$ and $\mathrm{DB}$ attached to a horizontal table.
A body $\mathrm{P}$ of mass $\mathrm{q} \mathrm{kg}$ is suspended by two light inextensible strings $\mathrm{AB}$ and $\mathrm{DB}$ attached to a horizontal table.(a) A body $\mathrm{P}$ of mass $\mathrm{q} \mathrm{kg}$ is suspended by two light inextensible strings $\mathrm{AB}$ and $\mathrm{DB}$ attach ...
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The velocity, $\mathrm{V}$, of a particle after t seconds, is $V=3 t^{2}+2 t-1$. Find the acceleration of the particle after 2 seconds.
The velocity, $\mathrm{V}$, of a particle after t seconds, is $V=3 t^{2}+2 t-1$. Find the acceleration of the particle after 2 seconds.The velocity, $\mathrm{V}$, of a particle after t seconds, is $V=3 t^{2}+2 t-1$. Find the acceleration of the particle after 2 seconds. A. $10 \ ... close Notice: Undefined index: avatar in /home/customer/www/mathsgee.com/public_html/qa-theme/AVEN/qa-theme.php on line 993 A force ( \(10 i+4 j)$ N acts on a body of mass $2 \mathrm{~kg}$ which is at rest. Find the velocity after 3 seconds.
A force ( $10 i+4 j)$ N acts on a body of mass $2 \mathrm{~kg}$ which is at rest. Find the velocity after 3 seconds.A force ( $10 i+4 j)$ N acts on a body of mass $2 \mathrm{~kg}$ which is at rest. Find the velocity after 3 seconds. A. $\left(\frac{5 i}{3}+\fr ... close 1 answer 40 views A livestock dealer buys 47 sheep at \(R 138$ each. If she sells the sheep at R138 $+6 x$ each after losing $x$ sheep, calculate the profit ( $P(x)$ ) if is was a maximum.A livestock dealer buys 47 sheep at $R 138$ each. If she sells the sheep at R138 $+6 x$ each after losing $x$ sheep, calculate the profit ( $P( ... close Notice: Undefined index: avatar in /home/customer/www/mathsgee.com/public_html/qa-theme/AVEN/qa-theme.php on line 993 A ball is kicked straight up in the air. If its height after \(t$ seconds is $h(t)=276 t-6 t^{2}$, calculate the maximum height the ball will attain.
A ball is kicked straight up in the air. If its height after $t$ seconds is $h(t)=276 t-6 t^{2}$, calculate the maximum height the ball will attain.A ball is kicked straight up in the air. If its height after $t$ seconds is $h(t)=276 t-6 t^{2}$, calculate the maximum height the ball will attai ...
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If the displacement of a particle (in meter) after $t$ seconds is $s=t^{3}-4 t+6$, determine the velocity after 8 seconds.
If the displacement of a particle (in meter) after $t$ seconds is $s=t^{3}-4 t+6$, determine the velocity after 8 seconds.If the displacement of a particle (in meter) after $t$ seconds is $s=t^{3}-4 t+6$, determine the velocity after 8 seconds. ...
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If the displacement of a particle (in meter) after $t$ seconds is $s=-3 t^{2}-2 t-3$, determine the acceleration after 6 seconds.
If the displacement of a particle (in meter) after $t$ seconds is $s=-3 t^{2}-2 t-3$, determine the acceleration after 6 seconds.If the displacement of a particle (in meter) after $t$ seconds is $s=-3 t^{2}-2 t-3$, determine the acceleration after 6 seconds. ...
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If the displacement of a particle (in meters) after $t$ seconds is $s=-5 t^{2}+4 t+6$, determine the velocity after 4 seconds.
If the displacement of a particle (in meters) after $t$ seconds is $s=-5 t^{2}+4 t+6$, determine the velocity after 4 seconds.If the displacement of a particle (in meters) after $t$ seconds is $s=-5 t^{2}+4 t+6$, determine the velocity after 4 seconds. ...
The displacement of a particle (in meters) after $t$ seconds is: $s=4 t+4$
The displacement of a particle (in meters) after $t$ seconds is: $s=4 t+4$The displacement of a particle (in meters) after $t$ seconds is: \ s=4 t+4 \ (a) Determine the displacement after 4 seconds. (b) Determine the dis ...