Answer:
91.5 m/s
Explanation:
m = mass of clay = 12 g = 0.012 kg
M = mass of wooden block = 100 g = 0.1 kg
d = distance traveled by the combination before coming to rest = 7.5 m
μ = Coefficient of friction = 0.65
V = speed of the combination of clay and lock just after collision
V' = final speed of the combination after coming to rest = 0 m/s
acceleration caused due to friction is given as
a = - μ g
a = - (0.65) (9.8)
a = - 6.37 m/s²
Using the kinematics equation
V'² = V² + 2 a d
0² = V² + 2(- 6.37) (7.5)
V = 9.8 m/s²
v = speed of clay just before collision
Using conservation of momentum
m v = (m + M) V
(0.012) v = (0.012 + 0.100) (9.8)
v = 91.5 m/s
Answer:
The beat frequency is always equal to the difference in frequency of the two notes that interfere to produce the beats. So if two sound waves with frequencies of 256 Hz and 254 Hz are played simultaneously, a beat frequency of 2 Hz will be detected. ... These sounds will interfere to produce detectable beats.
Explanation:
Answer:
The answer is <em>neither</em>.
Explanation:
The reason to why the <em>answer is neither</em> is because in order to jump start a vehicle you must:
- <em>Park the booster vehicle close to the hood of the vehicle that needs to be boosted.</em>
- <em>Set the parking brakes on both vehicles.</em>
- <em>Open the hoods of both vehicles to access the starting battery. On some vehicles this also in the trunk.</em>
- <em>Connect the clamp at the other end of the positive jumper cable (red) to the positive terminal on the battery or the jump-starting terminal.</em>
- <em>Connect the clamp at the other end of the positive jumper cable (red) to the positive terminal on the booster battery.</em>
- <em>Connect the clamp of the negative jumper cable (black) to the negative terminal on the booster battery.</em>
- <em>Connect the clamp at the other end of the negative jumper cable (black) to a piece of exposed metal part of the dead vehicle's engine and ensure that it is far away from any fuel or the battery.</em>
- <em>Run the engine of the booster vehicle for about 5 minutes.</em>
- <em>Now try to start the dead vehicle.</em>
- <em>If the vehicle does not start, check the connections of the different cables. If the engine does not start, then it should either be charged or replaced.</em>
- <em>Once the dead vehicle's engine has started, allow both vehicles to run for about 5 minutes.</em>
- <em>Then disconnect the negative cable from the vehicle and then from the booster battery.</em>
- <em>Then disconnect the positive cable from the vehicle and from the booster battery. </em>
The Earth radius is
.
For the law of conservation of energy, the energy required to move the object to an altitude of h=2r is equal to the gravitational potential energy of the object at that altitude, which is
And this is the energy required to move the object at that altitude.
Answer:
A decreases while B increases because the equilebrium only reacts to different sphers of this substance.
Explanation: