The answer is d because that’s the lowest velocity and it’s a straight line showing it’s not going faster
Answer:
29 m
Explanation:
given,
speed of the car = 73 Km/hr
= 73 x 0.278 m/s = 20.3 m/s
Time elapses before the motorcycle is moving as fast as the car
using equation of motion
v = u + at
initial speed = 0 m/s
20.3= 0 + 7 x t
t = 2.9 s
b) distance traveled by the car in that time
d = s x t
d = 20.3 x 2.9 = 58.87 m
distance traveled by the police
s = 29.435 m
distance car is ahead = 58.57 - 29.44 = 29.13
= 29 m
Answer:
Explanation:
There will be conservation of momentum along horizontal plane because no force acts along horizontal plane.
momentum of first piece = .320 kg x 2 m/s
= 0.64 kg m/s along x -axis.
momentum of second piece = .355 kg x 1.5 m/s
= 0.5325 kg m/s along y- axis .
Let the velocity of third piece be v and it is making angle of θ with x -axis .
Horizontal component of its velocity = .100 kg x v cosθ = .1 v cosθ
vertical component of its velocity = .100 kg x v sinθ = .1 v sinθ
For making total momentum in the plane zero
.1 v cosθ = 0.64 kg m/s
.1 v sinθ = 0.5325 kg m/s
Dividing
Tanθ = .5325 / .64 = .83
θ = 40⁰.
The angle will be actually 180 + 40 = 220 ⁰ from positive x -axis.
Answer:
The tension is 14 N
Explanation:
For this problem we have to use newton's law, so:
The second string is connected to the mass of 8 kg, but the mass of 8 kg is connected to the mass of 20kg, so we can say that the second string is handling the two masses. so:
You need to check the temperature of food being stored in a temperature-controlled environment every four hours. The process of changing a space's temperature is called temperature control.
Cooking food alone may not be enough to avoid food poisoning, though, if the bacteria in food are allowed to grow to large numbers. When the temperature is between 5°C and 63°C, bacteria can grow. The risk zone is the range between 5°C and 63°C.
Temperature control is a process where the passage of heat energy into or out of a space or substance is adjusted to achieve the desired temperature. This process involves measuring or otherwise detecting changes in the temperature of the space (and all of the objects contained therein) or of the substance.
Learn more about temperature here
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