Answer:
Option A is the correct answer.
Explanation:
Velocity of sled can be calculated by dividing displacement to time.
Displacement = 30 m
Time = 4s
Vertical velocity component is vsinθ
Vertical velocity = vsinθ = 7.5 x sin 45 = 5.3 m/s
Option A is the correct answer.
501 cm3
1232 cm3
616 cm3
To solve this we assumethat the gas inside the balloon is an ideal gas. Then, we can use the ideal gasequation which is expressed as PV = nRT. At a constant pressure and number ofmoles of the gas the ratio T/V is equal to some constant. At another set ofcondition of temperature, the constant is still the same. Calculations are asfollows:
T1 / V1 = T2 / V2
V2 = T2 x V1 / T1
V2 = 308 K x 556 cm³ / 278 K
V2 = 616 cm³
Answer:
the answer is 55 mph
Explanation:
hope this helped
All points to the left of zero on a horizontal number line are negative