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Provide the right solution of all parts of the following problem-
Problem- When starting a foot race, a 70 kg sprinter exerts an average force of 650N backward on the ground for 0.800 s.
Part a- What is the sprinters final speed?
Part b- what is the magnitude of the total contact force that the ground exerts on the sprinter?
You need help to evaluate the above problem.
When you take a bath, how many kilograms of hot water (51 °C) must you mix with cold water (14°C) so that the temperature of the bath is 36 °C? The total mass of water (hot plus cold) is 192kg. Avoid any heat flow between the water and its externa..
Earth has a radius of 6.38 × 106 m, and is about 1.50 × 1011 m from the Sun. Mars has a radius of 3.40 × 106 m, what is the intensity of electromagnetic solar radiation at Mars
A light beam traveling through air, enters a slab with n= 2.50 at a 45º angle with respect to the normal, At what angle to the normal does the ray leave the slab
The 2007 world record for the men's 100m dash was 9.77 seconds. The third place runner crossed the finish line in 10.07 s. how far behind is the third place runner
A 5.00 g object moving to the right at+20.0 cm/s makes an elastic head-oncollision with a 10.0 g object that isinitially at rest. Find the velocity of each object after the collision
A circus cannon, which has a mass M = 5000 kg, is tilted at q = 30°. The cannon is now lowered to shoot horizontally. It fires the same projectile at the same speed relative to the cannon. With what speed does the cannon now recoil with respect to ..
a space vehicle is coasting at a constant velocity of 20.5 ms in the y direction relative to a space station. the pilot
Illustrates how the forces can vary in problemsof this type. A hiker, who weighs 857 N, is strolling through thewoods and crosses a small horizontal bridge. The bridge is uniform,weighs 4420 N, and rests on two concrete supports, one on each end
You have a wire with a current that points upwards. If you put a compass east of that wire, how would the magnitude and direction of the total magnetic field change
A thin spherical shell has a radius of 2.1 m and a mass of 360 kg, and its center is located at the origin of a coordinate system. What is the gravitational force of attraction between the two shells
A car manufacturer claims that you can drive their new vehicle across a hill with a 47 degree slope before the vehicle starts to tip. If the car is 2.0 m wide, how high is its center of gravity?
an automobile tire has a gauge pressure of 200 kpa cold. after being driven on a hot day the gauge pressure rises to
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